Vertical takeoff and landing aircraft and gas turbine engine with fan thrust and exhaust thrust delivered downwardly
20170158324 ยท 2017-06-08
Inventors
Cpc classification
B64C29/0025
PERFORMING OPERATIONS; TRANSPORTING
B64C29/0075
PERFORMING OPERATIONS; TRANSPORTING
B64C29/0033
PERFORMING OPERATIONS; TRANSPORTING
Y02T50/40
GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
B64D35/02
PERFORMING OPERATIONS; TRANSPORTING
International classification
Abstract
An aircraft airfoil or wing or fuselage MODULE is fitted with a gas turbine engine driving a fan or propeller, in combination with a gaseous pressure accumulator, wherein said fan or propeller and said gaseous pressure accumulator both provide thrust, said fan thrust being provided from a rear of the MODULE via a drop-down thrust vectoring panel and said gaseous pressure accumulator thrust being provided from a fore of said MODULE, wherein the gaseous pressure accumulator is supplied with exhaust from said gas turbine engine and said exhaust is delivered downwardly at a variable angle, and said thrust vectoring panel is a panel with multiple minor panels which vector fan thrust at more than one angle. The gas turbine engine exhaust is delivered forwardly of said fan or propeller exhaust.
Claims
1. An aircraft comprising a travel direction and a prime mover, said prime mover producing an exhaust, said aircraft comprising a forward portion and a rearward portion in relation to said travel direction, said forward portion comprising a forward thrust element and said rearward portion comprising a rearward thrust element, wherein: said forward thrust element is at least one downwardly angled modulated valve or valves in fluid communication with an exhaust of said prime mover; said rearward thrust element is a rotationally or arcuately movable panel in combination with a fan or propeller, wherein; said prime mover passes gases to an accumulation chamber and at least one of said accumulation chamber and said fan or propeller is configured to direct gases at more than one downward direction relative to said travel direction.
2. The aircraft of claim 1 wherein: said forward thrust element is a rotatable valve with at least two thrust delivery angles and said rearward thrust element is a movable panel of a first size that comprises independently movable panels of a second size smaller than said first size and said forward thrust element delivers prime mover exhaust from an internal area of said aircraft.
3. The aircraft of claim 2 wherein said forward thrust element is a cylindrical element rotationally attached to said aircraft, said cylindrical element being rotatable to effect more than one thrust direction, said more than one thrust direction relative to said longitudinal axis and wherein at least one of said rearward thrust element and said forward thrust element expels exhaust derived from said prime mover.
4. The aircraft of claim 3 wherein: said aircraft has a hollow portion within said aircraft and said prime mover resides within said hollow portion.
5. The aircraft of claim 1 wherein: said rearward thrust element comprises at least two deflection vanes or panels that move independently of on another to achieve disparate concurrent angles.
6. The aircraft of claim 1 wherein said rearward thrust element is an extensible panel of a first size that comprises independently movable panels of a second size smaller than said first size, and said rearward thrust element is a fan or propeller, wherein: said prime mover supplies exhaust gases to a gaseous accumulation chamber that delivers pressurized gases to said forward thrust element.
7. The aircraft of claim 1 wherein said prime mover comprises a turbine and a gaseous accumulation chamber that accumulates exhaust from said turbine for use by said forward thrust element.
8. The aircraft of claim 7 wherein said gaseous accumulation chamber comprises an internal hollow space filled with exhaust from said turbine, and within said internal hollow space resides at least one of: said prime mover; a fuel tank; a fuel injection system; a flywheel in combination with electrical elements configured to establish a regenerative braking scheme for said prime mover.
9. The aircraft of claim 1 wherein said prime mover is a flywheel comprising a rotational velocity and further comprising a compressor stage and a turbine stage within or unitary with said flywheel, said compressor stage and said turbine stage locked for rotation together such that said compressor stage and said turbine stage rotate at an equal rotational velocity, one to another.
10. An aircraft comprising a longitudinal axis, below said longitudinal axis is a downward direction and above said longitudinal axis is an upward direction, said aircraft further comprising a longitudinal direction, said longitudinal direction and said aircraft having a direction of travel in which a forward direction is substantially along said longitudinal axis and a rearward direction is in a direction substantially opposite to said forward direction, said aircraft comprising a fuselage or wing, said aircraft further comprising a prime mover, wherein; said fuselage or, alternatively, said wing or, alternatively, said aircraft comprises a forward portion and a rearward portion, said fuselage or said wing or said aircraft comprises: a forwardly residing thrust element that delivers gases in a downward direction; forwardly corresponding to said forward direction along the longitudinal direction and downwardly being in said downward direction which is downward of the longitudinal direction; a rearwardly residing thrust element that delivers gases in a downward direction; wherein; at least one of said forward thrust element and said rearward thrust element is a variable angle gas delivery or gas deflection element that delivers or deflects gases downwardly of said longitudinal axis at a first angle and also at at least one second angle distinct from said first angle relative to said longitudinal axis.
11. The aircraft of claim 10 wherein said forward thrust element is a rotatable valve with at least two distinct thrust delivery angles.
12. The aircraft of claim 10 wherein said rearward thrust element is a movable panel of a first size that comprises independently movable panels of a second size smaller than said first size.
13. The aircraft of claim 12 wherein said forward thrust element delivers gases from an internally hollowed volume of said fuselage or said wing or aircraft.
14. The aircraft of claim 12 wherein said forward thrust element is a cylindrical element rotationally attached to said aircraft, said cylindrical element being rotatable to effect more than one thrust direction, said more than one thrust direction compared to said longitudinal axis.
15. The aircraft of claim 12 wherein at least one of said rearward thrust element and said forward thrust element expels exhaust gases derived from said prime mover.
16. The aircraft of claim 15 wherein said rearward thrust element is a movable panel of a first size that comprises independently movable panels of a second size smaller than said first size.
17. The aircraft of claim 10 wherein said aircraft has a hollow portion within said aircraft, said prime mover residing within said hollow portion.
18. The aircraft of claim 10 wherein said rearward thrust element is a fan or propeller in combination with a panel that moves away from said fan or said propeller, said panel comprising at least two panels that actuate independently from one another to form more than one simultaneous angle of thrust deflection.
19. The aircraft of claim 18 wherein said panel comprises minor vanes that selectively deflect thrust downward.
20. The aircraft of claim 18, wherein said minor vanes comprise at least one first vane and at least one second vane, said at least one first vane and said at least one second vane being selectively movable to different angles relative to each other to effect differential deflection of said gases.
21. The aircraft of claim 10, wherein said forward thrust element is a rotational valve and said rearward thrust element is a panel or vane or panel with vanes in combination with a fan.
22. The aircraft of claim 21 wherein said forward thrust element is a rotatable valve with at least two thrust delivery angles; wherein said rearward thrust element is a movable panel of a first size that comprises independently movable panels of a second size smaller than said first size; wherein said forward thrust element delivers gases from an internal area of said fuselage or said wing, wherein; said forward thrust element is a cylindrical element rotationally attached to said aircraft, said cylindrical element being rotatable to effect more than one thrust direction, said more than one thrust direction compared to said longitudinal axis; wherein at least one of said rearward thrust element and said forward thrust element expels exhaust gases derived from said prime mover; wherein said aircraft has a hollow portion within said aircraft, said prime mover residing within said hollow portion.
23. The aircraft of claim 10, wherein said rearward thrust element comprises a fan or propeller in combination with a series of flaps or variable vanes that direct gases downwardly, such that at least one first flap and at least one second flap direct gases downwardly at at least one first angle and at least one second angle different from said first angle.
24. The aircraft of claim 10, wherein said device comprises at least two prime mover elements rotating about an axis, said at least two prime mover elements comprising at least a first prime mover element and a second prime mover element, said first prime mover element cooperating with said second prime mover element to supplement a power of said second prime mover element, said first prime mover element and said second prime mover element rotating in opposite directions around said axis.
25. The aircraft of claim 10, wherein said aircraft comprises at least one prime mover in combination with a fan and at least said at least one exhaust deflector or said fan comprising means for thrust vectoring.
26. The aircraft of claim 10, wherein said aircraft further comprises a gaseous accumulation chamber, wherein energy from said gaseous accumulation chamber is effectively used for at least two purposes, the two purposes including at least: a first purpose including delivering power to said prime mover; a second purpose including delivering gases to a downward thrust element
27. The aircraft of claim 10 wherein said rearward thrust element is a variable angle vane or set of variable angle vanes placed behind, relative to said longitudinal direction, a fan or propeller, to deflect a gaseous flow delivered by said fan or propeller.
28. The aircraft of claim 10 wherein said forward thrust element is a rotatable valve with at least two thrust delivery angles; wherein said rearward thrust element is a movable panel of a first size that comprises independently movable panels of a second size smaller than said first size; wherein said forward thrust element delivers gases from an internal, constricted volume of said fuselage or said wing; wherein said forward thrust element is a cylindrical element rotationally attached to said aircraft, said cylindrical element being rotatable to effect more than one thrust direction, said more than one thrust direction compared to said longitudinal axis; wherein at least one of said rearward thrust element and said forward thrust element expels exhaust gases derived from said prime mover.
29. The aircraft of claim 10 wherein said prime mover is a flywheel comprising a rotational velocity and further comprising a compressor stage and a turbine stage within or unitary with said flywheel, said compressor stage and said turbine stage locked for rotation together such that said compressor stage and said turbine stage rotate at an equal rotational velocity, one to another; wherein said prime mover drives an auxiliary drive comprising a drive torque, and pressure from said accumulation chamber is rendered into electrical energy which supplements said drive torque.
30. The aircraft of claim 10 wherein said prime mover comprises a gaseous accumulation chamber that delivers pressurized exhaust gases from said prime mover to said forward thrust element.
31. The aircraft of claim 10 wherein said prime mover comprises a turbine and said gaseous accumulation chamber accumulates exhaust from said turbine, for expansion to effect a secondary thrust using said accumulated gases or a refeeding of power to said prime mover.
32. The aircraft of claim 10 wherein said prime mover is a flywheel comprising magnets and compressor vanes.
33. The aircraft of claim 10 wherein said prime mover is a flywheel comprising a rotational velocity and further comprising a compressor stage and a turbine stage within or unitary with said flywheel, said compressor stage and said turbine stage locked for rotation together such that said compressor stage and said turbine stage rotate at an equal rotational velocity, one to another.
34. The aircraft of claim 26 wherein said prime mover drives an auxiliary drive comprising a drive torque, and pressure from said gaseous accumulation chamber is rendered into electrical energy which supplements said drive torque.
35. The aircraft of claim 26 wherein said gaseous accumulator comprises an internal hollow space and within said internal hollow space resides at least one of: said prime mover; a fuel tank; a fuel injection system; a flywheel in combination with electrical elements configured to establish a regenerative braking scheme for said prime mover.
36. The aircraft of claim 10 wherein said prime mover is a hybrid turbine flywheel and said rearward thrust element is a fan deflector or propeller deflector and said forward thrust element is a turbine exhaust outlet comprising at least a closed state and a thrustor state.
37. The aircraft of claim 10 wherein said aircraft comprises a turbine, wherein said turbine emits an exhaust that communicates with at least one exhaust chamber, wherein an auxiliary expansion device derives supplemental energy from said turbine exhaust for a secondary purpose, said secondary purpose including one of aircraft thrust and prime mover velocity.
38. The aircraft of claim 10 wherein said aircraft comprises at least two turbines, at least two forward thrust elements, and at least two rearward thrust elements.
39. The aircraft of claim 38 wherein: said at least two rearward thrust elements reside on two separate wings of said aircraft.
40. The aircraft of claim 38 wherein: said exhaust gases from said at least two prime movers are selectively usable by at least two of said at least two turbines or said rearward thrust element or said forward thrust element or for thrust vectoring or energy sharing among turbines.
41. An airfoil comprising a substantially hollow interior and a longitudinal axis, said hollow interior comprising a turbine, said airfoil further comprising at least two multi-vector downward thrust elements, a first multi-vector downward thrust element residing forwardly of said turbine, forwardly being along said longitudinal axis, a second multi-vector downward thrust element residing rearwardly of said turbine, rearwardly being along said longitudinal axis and in an opposite direction from forwardly, wherein; at least one of said first multi-vector downward thrust element and said second multi-vector downward thrust element variably delivers thrust gases at more than one angle relative to said longitudinal axis, wherein; at least one of said first multi-vector downward thrust element and said second multi-vector downward thrust element variably delivers thrust gases from the exhaust of said turbine.
42. The airfoil of claim 41, further comprising a travel direction and said turbine providing an exhaust, said airfoil comprising a forward portion and a rearward portion in relation to said travel direction, said forward portion comprising a forward thrust element and said rearward portion comprising a rearward thrust element, wherein: said forward thrust element is at least one downwardly angled modulated valve or valves in fluid communication with an exhaust of said prime mover; said rearward thrust element is a rotationally or arcuately movable panel in combination with a fan or propeller, wherein; said prime mover passes gases to an accumulation chamber and at least one of said accumulation chamber and said fan or propeller is configured to direct gases at more than one downward direction relative to said travel direction.
43. The airfoil of claim 41, further comprising longitudinal axis, below said longitudinal axis is a downward direction and above said longitudinal axis is an upward direction, said airfoil further comprising a longitudinal direction, said longitudinal direction and said airfoil having a direction of travel in which a forward direction is substantially along said longitudinal axis and a rearward direction is in a direction substantially opposite to said forward direction, said airfoil comprising a fuselage or wing, said airfoil further comprising a prime mover, wherein; said airfoil comprises a forward portion and a rearward portion and comprises: a forwardly residing thrust element that delivers gases in a downward direction; forwardly corresponding to said forward direction along the longitudinal direction and downwardly being in said downward direction which is downward of the longitudinal direction; a rearwardly residing thrust element that delivers gases in a downward direction; wherein; at least one of said forward thrust element and said rearward thrust element is a variable angle gas delivery or gas deflection element that delivers or deflects gases downwardly of said longitudinal axis at a first angle and also at at least one second angle distinct from said first angle relative to said longitudinal axis.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0048] The foregoing discussion will be understood more readily from the following detailed description of the invention, when taken in conjunction with the accompanying drawings.
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DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0077] The following description of
[0078] The pressure accumulator can be large and in the embodiments of the present application it surrounds the greater part of the TF casing and is confined by the outer walls of a vehicle. The pressure accumulator PA1 communicates with the ambient air outside of the vehicle via a reversible pump/motor PM1 and possibly other pump/motors 12, which when driven by air expanding therethrough are motors, usually driving a motor/generator (in the case of PM1, it drives MG1), and when taking air into the pressure accumulator PA1 to charge it to higher pressures, are driven by the motor/generator and act as pumps. Further escape valves allow gases within the pressure accumulator to pass directly to the environment, as shown by passageways a, b, and c leading from the pressure accumulator PA1 to outside 13. Shaft 11 depicts the rotational interlock between the reversible pump/motor PM1 and the motor/generator. Motor/generator MG1 is electrically connected to a DC bus 15, which communicates with first and second generator/flywheels 6 and 7. The DC bus is further connected to the load L, which could be in-wheel electric motors with regenerative breaking reversing the electrical flow back to the bus from the load. The DC bus is also connected to auxiliary systems, the cabin, and possibly (in embodiments not of interest in the present application) a battery and/or docking station. An evacuation pump 8 is connected to the combustor C, preferably near the air inlets or near the burner nozzle, possibly in conjunction with the latter, and when activated causes a negative pressure which removes any air in the combustor. This will be described later.
[0079] The air from the evacuation pump also passes out to ambient 9. Reference numeral 10 indicates a further provision, not dealt with in the present application, whereby instead of expanding the gases through PM1, or in addition thereto, the gases in the accumulator are passed through the first and second turbine groups 4, 5, again, without combustion, to ambient. This provision is not at this time seen as fruitful, but has been included for the sake of full disclosure.
[0080] Turning now fully to
[0081] As stated, the air passes from the first volute V1 and into the first compressor stage C2 and S1. C2-C7 are axial-compressor rotor vanes and each has a root 23 that sits in and is anchored by, in a preferred embodiment, layers of fiber-reinforced plastic or carbon-fiber-epoxy sheets that have been spun around the rotor wall 25, with the roots temporarily attached, and cured, permanently and durably fastening the compressor vanes C2-C7 to the rotor wall. The strength of this bond is important as the system will rotate at extremely high velocities. The stator vanes S1-S5 are traditional stator vanes and are interspersed with the compressor vanes C2-C7. Each compressor vane C2-C7 is embedded with a magnetic element M which interacts with conductive coils i in the same way as described in the preceding paragraph. The magnetic elements M, the fiber/resin layers 24, and the bodies of the compressor vanes C2-C7 make up the greater part of the mass of the rotor of the second compressor group, and thus form a flywheel as do corresponding elements of the first compressor group 2, and by much of those items being magnetic, also form a generator. It is here noted that 30 indicates an annular disk with solid, structural elements 26 and 29, and passageways S6, C8, C9, and T3. The gases exiting the last turbine stage pass through stator S6 and then to a passage, also vaned, to turn and pass through a stator C8, which is here labeled as a compressor stage C8 because the air, being entrained within the body of rotor 28, 25, 42, 45 etc. at this point, will see the stator C8 as a compressive stage C8, and will be further compressed such that when it passes to rotating passage 45, it seems stationary in the relative frame of the rotor as if it had just passed through a single compressor stage. Now arrived at passage 45, said air passes leftward, as seen in
[0082] The air enters another manifold where it merges back into an annular passageway and enters another stator C9, which for the same reasons given for C8 is treated as a compressor stage. The edges of the entry and exit vanes of 45 and 53 should be bent to an angle to complement such a relationship with the stator vanes C8 and C9, as should the edges of passageways 40, 41, and 44. The air now enters a passageway 40 where it is again flung outwardly (this could be seen as a compressive stage but the air therein is only regaining the energy it lost by being pushed toward the axis 50 in 27 and R to begin with, so this will not be discussed). The air enters a stator S7 where it is deflected to a proper exit angle to act on C10, which with C11 make up the final two compressor stages 39, separated by another stator S8. By the time the air enters the combustor C through passage 33, it will have been acted upon by approximately 11 compressor stages, one of which is a large centrifugal compressor, such that with the recuperator R the enthalpic rise should be the equivalent of at least a 14-stage axial compressor. It is mentioned in passing that the recuperator and change-of-direction passageways can be done without and the air could simply pass from S6 to 33. The more complicated embodiment has been included for patent purposes for it inherently comprises all the elements of the simpler ones. 31 depicts the outer edge of rotor segment 42. The rotor has been divided up into segments 2, 48, 47, and 46 to show that during manufacture it can be stacked and that it would not be required to perform the impossible, which would be to have the rotor formed whole. In the event that 30, the turning passages, and the recuperator R were removed from the concept, these considerations would be less profound. It is also envisioned that annular segment 30 could extend all the way to axis 50 and 42 would be a third compressor/turbine/generator/flywheel rotating independently of 2/5/6 and 3/4/7, but in this case it is uncertain at this time what turbine would drive compressor stages C2-C7.
[0083] Continuing with the discussion of the rotor depicted by reference numerals 42, 28, and 31, more magnetic elements are spaced around the periphery near 31 and interact with conductive coils i, as previously described. 28 and 42 are not actually solid, but insofar as the air is concerned, they are. The air enters the combustor at 33 where it passes into the combustion chamber through nozzles 34 and it is ignited by a fuel mix coming from fuel burner nozzle 32. 35 are flame propagation nozzles that contribute to forming the flame and preventing the flame from passing upstream. This is well known in the art. The exhaust of the combustor passes through 36 to impinge on first turbine stage T1 which in this embodiment is of a piece with C11, as is S9 with S8, T2 with C10, and S10 with S7. This arrangement is hoped to save space and allow the radial compressor stages and turbine stages to coexist and be advantageously located radially inwardly of the combustor and at the end of the machine. Wall 37, with 21, completes the outer casing of the device.
[0084] The stators 38 of the first two turbine stages could easily be made to swivel via a simple ring gear to be variable stator vanes, allowing it to change the flow characteristics through the first turbine group 4 to adjust for different altitudes and rates of combustion. The air passes from first turbine group 4 to another passageway 41 which delivers it to another stator T3 which for the same reasons as C8 and C9, is being treated as a turbine stage. Although counterintuitive and hard to understand, the laws of gas turbine engine theory can be used to prove that energy is recovered from the exhaust stream here (as it is provided by C8 and C9), and although it is not the intention of the present application to define this, the inventor sees this as far simpler than describing how it is actually 27, 45, 40, 41, etc. that are absorbing and performing the work. The virtual enthalpic ratio across T3 can be seen as approximately 1.4:1, and the same goes for C8 and C9. From T3 the exhaust enters another manifold 44 which splices with manifold 43 to create the sectored recuperator R described above. Element 49 exists in the compression side 58 of sectors 47 and is used to guide the flow from 45 to 43, bringing it out in an opposite axial direction from how it entered. However, no such element is used in the turbine side sectors 47 because the air from T3 moves more or less axially to arrive at another manifold, also indicated as 44, to be fed into the second volute, V2. It is noted at this time that V1 and V2, as well as any space or substance between them, are part of an annular body 57 that is fixed to the casing 21 and extends radially inwardly therefrom. Like V1, volute V2 can also have a diffuser D2 or some type of swirling or anti-swirling vanes, and is integrally vaned to evince some type of indescribable, despite conceived efforts, stator vane which serves as a volute for the fourth and final turbine stage, T4, which is the sole representative, in the preferred embodiment, of the second turbine group 5. T4 and C1 are locked for rotation with each other and sit on a spindle 52, which nests around shaft 53 which is integral with the rotor 42, 46, etc. at 51. Spindle is separated from the main rotor 42, 53, etc. by bearings B to define a space 45. It is unknown at this time what type of bearings would be most cost-effective, but of course the idyllic embodiment would be levitational-bearings (alternating magnetic fields facing each other creating constant repulsion). 54 defines the output shaft and is integral, in the preferred embodiment, with 42, 53, etc. The overall machine is quite small, so it is not unforeseen that 54 could be cast or forged with 42. The air exiting T4 passes to outlet.
[0085] In operation, 5 drives 2 and 6, and 4 drives 7 and 3. Any force on 5 will be communicated to 2 and 6, any force on 2 will be communicated to 5 and 6, etc. Any force on 4 will be communicated to 7 and 3, etc. This is why 5, 2, and 6 are shown in
[0086] It is noted that to ease understanding of the invention, one would be well advised to skip the discussions of
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[0088] The driven parts 74 and 86 drive the crankshaft which, on the left end, is surrounded by a sleeve 93 which is further surrounded, at two points, by outer sleeves 94 and 104. Outer sleeve 104 can be clutched to crankshaft 83 by clutch 103, locking the rotor 105 of the motor/generator MG1 for rotation with the crankshaft. Clutch 102 locks 105 for rotation with sleeve 93, which is clutched, via a direction-reversing arrangement, to an output pulley 96, which with belt 107 and axle pulley 108, comprise a continuously variable transmission (CVT) of known type. The outer periphery of sleeve 94 is splined and carries, on each side of output pulley 96, sun gears that cooperate with planetary systems 92 and 97, one of which has a single ring of planet gears and the other has a double ring of planet gears, such that the ring gears 99 and 91 will be driven in opposite directions from each other, inverting the drive relationship between 107 and 83 depending on whether clutch 91 locks 100 for rotation to sleeve 93 or clutch 101 locks 100 for rotation with sleeve 93. Clutch 90 locks the sleeve 93 for rotation with crankshaft 83. It will be apparent to one skilled in the art that the piston rods 74 can drive MG1 without connecting to the CVT, the CVT can drive MG1 (or vice versa) without connecting to the piston rods or the turbine 82, and the piston rods and/or turbine can drive the CVT (or vice versa) without connecting to MG1. 109 is a service brake and will be used when loading the axle 88 via PM1 and MG1 is insufficient for achieving the desired braking force. 106 is the stator coil of the motor/generator MG1 and its polarity will be oscillated and inverted to energize or be energized by the rotor 104.
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[0094] A vertical take-of valve VTOV is provided to send air, through bore 205, through outlets A, B, and C. By controlling it, gases from PA1 escape therefrom at high velocities, modifying the thrust vector of the vehicle overall. Passage A sends the gases rearwardly where they escape at 216 and supplement thrust of the fan. 217 is a panel with outlets which can be opened such that air 218 is directed downward, in the event this device is to be used as a hovercraft or hydrofoil. Although this is foreseen, it is not a subject of the present application. Position B directs gases directly downwardly. Position C directs gases downwardly and forwardly, also acting as a thrust reverser to be used with 204 in certain applications.
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[0098] 1.) Start-up: [0099] Depressurize pressure-accumulator PA1 through reversible pump-motor PM1. [0100] Route generated electricity from PM1 to conductive coils (i), accelerating TF. [0101] Open inlet and outlet of TF. [0102] Commence combustion in combustor C.
[0103] 2.) Run-up and Hybrid Operation with P>Pmin: [0104] Combust until 1 (TF rotational velocity 1) and P1 are reached (load can be energized at this time) [0105] When P=P1, close inlet and outlet of TF. [0106] Compressors and turbines self-evacuate with assistance from pump and relieved (open) bias-seals. [0107] Slowly expand gases in PA1 through PM1 (currently a motor-generator), electrically accelerating TF. [0108] Deceleration of TF via energization of Load L. [0109] Acceleration of TF via braking of Load L. [0110] Successive reiteration of steps 2-5 and 2-6 until P=Pmin (or insufficient upcoming brakings foreseen). [0111] Meanwhile, during quick-stops (brake-force required larger than reverse load capacity of load L): Reverse PM1 (now a pump), utilizing supplemental brake-force to draw ambient air into PA (Supplemental braking requirements excessive) Activate service brake. [0112] When P=Pmin OR 1=1min (or insufficient upcoming brakings foreseen)go to step 1-3.
[0113] 3.) Shutdown/parking: [0114] Close (if open) inlet and outlet of TF. [0115] Route electrical energy from TF to PM1. [0116] Reverse PM1 to pump ambient air into PA. [0117] When 1=0, close PM1resulting in hermetically sealed PA with sufficient charge to begin step 1.
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[0119] 4.) Starting from road travel with moderate at decision moment (i.e. typical highway lift-off): [0120] Close (if open) PM1, sealing PA1 (vertical take-off valve VTOV already closed). [0121] Open (if not already open) inlet and outlet of TF and commence combustion (if not already combusting). [0122] While P increases to Pmax, direct all electrical energy from TF to load L, accelerating vehicle. [0123] When P=Pmax, cease combustion, close inlet and outlet of TF, open fan F inlet and flap panel to idle fan. [0124] Electrically transfer all kinetic (rotational) energy from TF module 1 (TFM1) to TF module 2 (TFM2) and L. [0125] When TFM1 and F are rotationally matched (via reduction gearing ratio), slide collar over trunnion. [0126] Open PM1 to maximum throughput, transfer all energy from PM1 and TFM2 to TFM1 and L (until/unless vehicle velocity is near lift-off velocity, then deactivate L for duration of flight) [0127] Open inlet and outlet to TF, commence combustion, positively drive F at lift-off thrust [0128] Although PM1 is still at max throughput, P will quickly reach Pmax). [0129] Selectively open vertical take-off valve VTOV to position A to complement fan thrust and to waste-gate PM1. [0130] If advantageous, momentarily (or for duration of lift-off) rotate VTOV partially/fully to position B and vertical take-off flap VTOF partially/fully upright to achieve pop up effect.
[0131] 5.) Starting from road travel with excessive at decision moment (i.e. atypical highway lift-off): [0132] Reverse PM1 (now a pump) and slow TF electrically via PM1 and L, charging PA1 and accelerating vehicle. [0133] When possible, open inlet and outlet of TF without combustion, further charging PA1 and slowing TF. [0134] When falls to predetermined rate, commence combustion; [0135] Go to step 4-3.
[0136] 6.) VTO with moderate (i.e. heliopad/driveway lift-off): [0137] Down flap panel, open fan inlet, open inlet and outlet of TF, commence combustion, charging PA1. [0138] Direct some electrical energy from TF to reversed PM1 (now a pump), further charging PA1. [0139] When P=Pmax, cease combustion, close inlet and outlet of TF, close PM1. [0140] Electrically transfer all kinetic (rotational) energy from TF module 1 (TFM1) to TF module 2 (TFM2) and L. [0141] Service brake applied (connect to front axle, PM1 pistons connect to generator) anytime prior to step 6-7. [0142] When TFM1 is completely stopped, slide collar over trunnion, raise VTOFs to near-upright (fan nozzled down). [0143] Open inlet and outlet to TF, commence combustion, continue to reverse PM1 via electricity from TF. [0144] When P=Pvto, quickly cycle VTOV to position C and switch to thrust reverser on front inlet. [0145] One VTOF has been left horizontal to keep down-thrust just shy of lift-off. It is now raised parallel to the others.
[0146] 7.) VTO with high (i.e. traffic lift-off): [0147] Reverse PM1 (now a pump) and slow TF electrically via PM1, charging PA1. [0148] When falls to predetermined rate, go to step 6-1.
[0149] 8.) Pre-planned or taxi-to-runway flight (since significant fuel is consumed by VTO, this may be common): [0150] Perform steps 1-1 through 2-7 until on straightaway/runway, then perform steps 4-1 through 4-11. [0151] With (GPS) knowledge of route (user's home and favorite lift-off), the computer can optimize fuel usage.
[0152] 9.) Road landing: [0153] Obtain altitude and alignment just above roadway, level out and run TF and F at cruise. [0154] Raise the central VTOF, or two outermost VTOFs, partway, to partially vector the thrust down [0155] Simultaneously with 9-2, cycle VTOV to position B. [0156] Loss of thrust in 9-2 and 9-3 reduces lift. Vehicle descends onto air cushion created by downward thrust. [0157] Several inches above roadway, level VTOFs and retract (toward fan) flap panel. Rear wheels touch down. [0158] A moment behind step 9-5, cycle VTOV closed and cease combustion. Front wheels touch down. [0159] Slide collar off trunnion, close fan inlet. [0160] Braking load drives TF to high w, go to step 2-5. [0161] (it is uncertain at this time when, whether, and how PM1 should be utilized during this procedure)
[0162] 10.) Vertical landing: [0163] Obtain approach position, attitude, and altitude. [0164] Cycle VTOV to position B and all VTOF's to max upright position, vectoring all thrust and exhaust downward. [0165] Pitch/roll/yaw nozzles PRYNs and TF driven selectively to stabilize speed, lift, pitch, roll, and yaw [0166] Vehicle coasts through a deceleration and descent curve to arrive mostly slowed, above and just shy of LZ. [0167] Cycle VTOV to position C and switch to thrust reverser on front inlet, bring horizontal velocity to zero above LZ. [0168] Attenuate fuel-in until touchdown. [0169] Slide collar off trunnion, close VTOV, retract (toward fan) flap panel, close fan inlet. [0170] Go to either step 2-1 (to taxi or drive) or step 3-1 (to park).
[0171] 11.) Other features: [0172] With GPS device, system can begin shedding energy a certain distance from one's destination. [0173] Docking station plug-ins allow vehicle to depart with maximum w and P, such that lift-off happens fully fueled.
[0174] Although the method is extremely complicated, it is believed by the inventor that with the capabilities of modern computers, a simple device with very few moving parts and a complicated control method is preferable to an inordinately complicated device (think vertically thrusting fan geared to main drive shaft) with a simple control method. Some compromise must be made in pursuing vertical take-off and landing, and the inventor believes he has not put forth more requirements on the controller than a modern lap-top computer could handle.
[0175] Continuing now to some essential attributes of the TF that were not mentioned earlier.
[0176]
[0177]
[0178]
[0179]
[0180] Inside the wing, the gas turbine engine reposes as shown in
[0181] At the top of
[0182]
[0183] In operation the truck drives around in hybrid mode, answering to a dispatch service. It should get the gas mileage of a very small car operating with the pressure accumulator 410 very large such that the TF pumps it full and it can drive around for a substantial time before requiring recharge. However, when the truck arrives at the scene of a vehicle 418 to be towed, the chamber collapses to the configuration shown in
APPENDIX I
[0184] Of the types of expanders foreseen as the pump/motor (PM1) are: [0185] a) a single piston-cylinder with one or more control valve(s); [0186] b) multiple piston-cylinders with a single, or multiple, control valve(s); [0187] c) a single centrifugal turbine of non-variable rotor and/or stator vanes; [0188] d) a single centrifugal turbine with variable rotor and/or stator vanes; [0189] e) multiple centrifugal turbines of non-variable rotor and/or stator; [0190] f) multiple centrifugal turbines of variable rotor and/or stator vanes; [0191] g) multiple axial turbines of variable or fixed rotor and/or stator vanes. [0192] h) of the foregoing, a+b; [0193] i) of the foregoing, a+c; [0194] j) of the foregoing, a+d; [0195] k) of the foregoing, a+e; [0196] l) of the foregoing, a+f; [0197] m) of the foregoing, a+g; [0198] n) of the foregoing, b+c; [0199] o) of the foregoing, b+d; [0200] p) of the foregoing, b+e; [0201] q) of the foregoing, b+f; [0202] r) of the foregoing, b+g; [0203] s) of the foregoing, c+d; [0204] t) of the foregoing, c+e; [0205] u) of the foregoing, c+f; [0206] v) of the foregoing, c+g; [0207] w) of the foregoing, d+e; [0208] x) of the foregoing, d+f; [0209] y) of the foregoing, d+g; [0210] z) of the foregoing, e+f; [0211] aa) of the foregoing, e+g; [0212] ab) of the foregoing, a+h; [0213] ac) of the foregoing, a+i, a+j, a+k, a+1, a+m, a+n, a+o, a+p, a+q, a+r, a+s, a+t, a+u, a+v, a+w, a+x, a+y, a+z, a+aa, or a+ab; [0214] ad) of the foregoing, b+i, b+j, b+k, b+1, b+m, b+n, b+o, b+p, b+q, b+r, b+s, b+t, b+u, b+v, b+w, b+x, b+y, b+z, b+aa, or b+ab; [0215] ae) of the foregoing, c+i, c+j, c+k, c+1, c+m, c+n, c+o, c+p, c+q, c+r, c+s, c+t, c+u, c+v, c+w, c+x, c+y, c+z, c+aa, or c+ab; [0216] af) of the foregoing, d+i, d+j, d+k, d+1, d+m, d+n, d+o, d+p, d+q, d+r, d+s, d+t, d+u, d+v, d+w, d+x, d+y, d+z, d+aa, or d+ab; [0217] ag) of the foregoing, e+i, e+j, e+k, e+1, e+m, e+n, e+o, e+p, e+q, e+r, e+s, e+t, e+u, e+v, e+w, e+x, e+y, e+z, e+aa, or e+ab; [0218] ah) of the foregoing, e+i, e+j, e+k, e+1, e+m, e+n, e+o, e+p, e+q, e+r, e+s, e+t, e+u, e+v, e+w, e+x, e+y, e+z, e+aa, or e+ab; [0219] ai) of the foregoing, f+i, f+j, f+k, f+1, f+m, f+n, f+o, f+p, f+q, f+r, f+s, f+t, f+u, f+v, f+w, f+x, f+y, f+z, f+aa, or f+ab; [0220] aj) of the foregoing, g+i, g+j, g+k, g+1, g+m, g+n, g+o, g+p, g+q, g+r, g+s, g+t, g+u, g+v, g+w, g+x, g+y, g+z, g+aa, or g+ab.