Internal combustion rotary engine

Abstract

An internal-combustion engine includes an engine housing having an interior space with an inner wall, which section-wise corresponds to a segment of a circular cylinder and a segment deviated from the circular cylinder, wherein a rotary disc is centrally rotatably mounted in the interior space around an axis, and an intake area, a compression area, an ignition area, a working area and an exhaust area are formed, wherein the rotary disc is a circular cylinder with two slots in the circumferential area, into each of which slots a sliding element is inserted, wherein each sliding element movable along the slot, and is moved along the slot on rotation of the rotary disc.

Claims

1. An internal-combustion engine comprising: an inlet system for delivering air/fuel/air-fuel mixture; an exhaust system for discharging exhaust gas; an ignition device; a drive shaft; an engine housing, which has an interior space with an inner wall, which section-wise corresponds to a segment of a circular cylinder and section-wise corresponds to a segment which deviates from the form of a circular cylinder; a rotary disc being centrally rotatably mounted in an interior space around an axis of rotation of the drive shaft; wherein an intake area, a compression area, an ignition area, a working area, and an exhaust area are formed in the interior space; wherein the rotary disc is in the form of a circular cylinder; wherein said rotary disc has only two slots including a first slot and a second slot in the circumferential area, with a first sliding element and a second sliding element being inserted into the first slot and the second slot; wherein the interior space of the engine housing has a third slot with a third sliding element being inserted; wherein each sliding element is able to move alone the slot concerned, and is moved alone the slot concerned on rotation of the rotary disc; wherein an end of the first sliding element facing away from the axis of rotation is guided along the inner wall in the compression area, the ignition area and the working area on rotation of the rotary disc, while an end of the second sliding element facing away from the axis of rotation is guided alone the inner wall in the compression area and at a distance from the inner wall in the working area on rotation of the rotary disc; wherein the third sliding element has at least one projection which is guided at least in one recess of an overlap of the rotary disc; and wherein the third sliding element is seated according to position at beginning of an expansion phase in an across milled slot in the engine housing.

2. The internal-combustion engine according to claim 1, wherein the segment of the inner wall which deviates from a circular cylindrical shape, is arranged, in the intake area and compression area.

3. The internal-combustion engine according to claim 1, wherein the outer diameter of the rotary disc in an area where the inner wall corresponds to the circular cylinder corresponds to the inner diameter of the interior space and wherein the inner diameter of the inner wall in the area where it deviates from the circular cylindrical shape having a larger diameter than the rotary disc.

4. The internal-combustion engine according to claim 1, wherein the first sliding element and the second sliding element are arranged offset to each other.

5. The internal-combustion engine according to claim 1, wherein the first sliding element and the second sliding element parallel to the axis of rotation each have at least two projections that reach into recesses of the engine housing.

6. The internal-combustion engine according to claim 5, wherein the recesses form a closed curve around the axis of rotation.

7. The internal-combustion engine according to claim 5, wherein the radial distance of the recesses from, the inner wall around the axis of rotation in the compression area, in the ignition area and in the working area remains essentially unchanged.

8. The internal-combustion engine according to claim 1, wherein the rotary disc on front surfaces of the circular cylinder in a racial direction each exhibits an overlap.

9. The internal-combustion engine according to claim 1, wherein the third sliding element upon rotation of the rotary disc along the third slot is moved toward the rotary disc and from the rotary disc away, wherein a guide is formed such that the third sliding element after passing the first sliding element, is moved toward the rotary disc and the first sliding element and the second sliding element have passed an outlet area, is reinserted into the engine housing.

10. The internal-combustion engine according to claim 1, wherein an air inlet is provided and that a fuel inlet is provided by which air and fuel are introduced into a gap between the inner wall and rotary disc.

11. The internal-combustion engine according to claim 1, wherein an ignition-device is provided to ignite a fuel/air mixture in the ignition area which is designed of a gap between the inner wall and rotary disc.

12. The internal-combustion engine according to claim 1, wherein the rotary disc exhibits a shaft for the driving a load.

13. The internal-combustion engine according to claim 1, wherein the first and the second sliding element are slidable in the radial direction.

14. The internal-combustion engine according to claim 1, wherein the two slots are directed toward the axis of rotation.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) Further advantages and details of the invention will to be illustrated below on the basis of figures and figure descriptions.

(2) FIGS. 1a to 1d show cross-sections through a combustion engine according to the invention in four operating positions: suction (FIG. 1a), compression (FIG. 1b), work (FIG. 1c), ejecting (FIG. 1d).

(3) FIGS. 2a, 2b show perspective views of engine discs with two sliding elements (Front and back).

(4) FIG. 3 shows an exploded view of an engine disc.

(5) FIGS. 4a, 4b show perspective views (front and back) of an engine disc with housing.

(6) FIGS. 5a, 5b show the third sliding element in the engine housing.

(7) FIG. 6 shows a cross-section of the rotary disc and the engine housing.

(8) FIGS. 7a to 7c show three design variants for profiled engine shafts.

(9) FIGS. 8a to 8c show design variants for sliding elements.

(10) FIG. 9 shows a magnification of FIG. 1a.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

(11) In FIGS. 1a to 1d and in the magnified view in FIG. 9 an internal combustion engine 1 according to the invention is shown. The internal combustion engine 1 comprises an engine housing 2, which has an interior space 3 with an inner wall 4. The inner wall 4 section-wise corresponds to a segment of a circular cylinder and section-wise deviates from the form of a circular cylinder. A rotary disc 5 is centrally rotatably mounted in the interior space 4 around an axis of rotation 6, wherein the rotary disc 5 is designed substantially in the form of a circular cylinder. The rotary disc 5 in the circumferential area 7 has a first slot 8 and a second slot 9. In the first slot 8 is inserted a first sliding element 10 and in the second slot 9 a second sliding element 11. The sliding elements 10, 11 are arranged offset to each other.

(12) Both the first and the second sliding element 30, 11 are displaceable in the radial direction. The two slots 8, 9 are substantially directed to the rotating axis 6.

(13) The two sliding elements 10, 11 are movable along the slots 8, 9 and can be moved in this way from and to the rotation axis 6. The end of the first sliding element 10 facing away from the axis of rotation 6 at a rotation of the rotary disk 5 is guided essentially along the inner wall 4, while the end of the second sliding element 11 facing away from the axis of rotation 6 upon a rotation of the rotary disc 5 only section-wise along the inner wall 4 is guided. Specifically the end of the first sliding element 10 facing away from the axis of rotation 6 at a rotation of the rotary disc 5 in the compression area, in the ignition area and in the working area is guided along the inner wall 4. The end of the second sliding element 11 facing away from the axis of rotation 6 upon a rotation of the rotary disc 5 in the compression area along the inner wall 4 is guided. From the third sliding element 25 the second sliding element 11 is retracted and guided with distance to the inner wall 4 along the working area, so that the third sliding element 23 forms the rear boundary of the combustion chamber 18.

(14) The interior space 3 is connected with an air inlet 13, a fuel inlet 12 and an exhaust outlet 14, wherein between the fuel inlet 12 and the exhaust outlet 14 are arranged a compression area 15, an ignition area 16 and a work area 17. The segment of the inner wall 4, which differs from the circular cylindrical shape, is arranged substantially in the inlet area and compression area 15. The two sliding elements 10, 11 define the combustion chamber 18 in which initially will let air into, which is then compressed and mixed with fuel. Subsequently the ignition of the fuel/air mixture occurs in the combustion chamber 18 and at that starts the working cycle. FIG. 1a shows the working area in which in the inlet area an air intake 13 occurs. FIG. 1b shows the compression area 15 with the fuel inlet 12. The ignition of the fuel/air mixture is occurs with the ignition device 19 which is formed for example as an electric spark plug. With appropriate dimensioning of the combustion chamber and a correspondingly high compression as well as at use of a suitable fuel, in addition to the described extraneous ignition with an igniter 19 may be provided also a self ignition. After occurred ignition in FIG. 1c is provided the working cycle in which the burnt fuel/air mixture by means of the rotary disc 5 converts energy into rotation. The rotary disc 5 is provided with a shaft not shown for driving a load, also not shown. FIG. 1d finally shows the expulsion of the burned fuel/air mixture in the outlet area on the exhaust outlet 34.

(15) As it can be seen from the FIGS. 1a to 3d, the outer diameter d of the rotary disc 5 in the area where the inner wall 4 corresponds to a circular cylinder substantially corresponds to the inner diameter 13 of the interior space 3. The inner diameter 12 of the inner wall 4 in the area where it deviates from the circular cylindrical shape, exhibits a larger diameter d than the rotary disc 5.

(16) As it can be seen from the FIGS. 2a, 2b and 3, the sliding elements 10, 11 parallel to the axis of rotation 6 exhibit projections 20, which extend into recesses 21, 22 of the engine housing 2. The recesses 21, 22, form a closed curve around the rotation axis 6. The radial distance r of the recesses 21, 22 from the inner wall 4 substantially remains unchanged around the rotation axis 6 in the compression area 15, in the ignition area 16 and the working area 17.

(17) The FIG. 3 shows clear that the rotary disc 5 on the top surfaces 5a of the circular cylinder in the radial direction exhibit overlaps 23. The interior space 3 of the engine housing 2 exhibit a slot 24 in which a third sliding element 25 is movable mounted to and from the rotation axis 6. Also the third sliding element 25 exhibits projections 20 which are guided in recesses, which are preferably milled guide grooves 26 in the overlaps 23.

(18) Between interior space 3 and rotary disc 5 is a gap 27. This is sealed by the overlaps 23 from the remainder engine. With the air intake 13 and by way of the fuel inlet 12 in the form of an injection device it is injected air and fuel in the gap 27 between inner wall 4 and rotary disc 5, which thus in sections forms also the combustion chamber 18.

(19) With the mentioned three sliding elements 10, 11, 25 per rotary disc 5, which are generally present in plate form, can be formed an intake area, a compression area, a combustion chamber and an exhaust area per rotary disc.

(20) The rotary disc 5 is mounted centrally and has a circular cylindrical shape. Its diameter and its width depend entirely on sought-use and power of the internal-combustion engine 1. The rotary disc 5 preferably has approximately parallel to each other across milled in the arc two slots 8, 9, in which the first two sliding elements 10, 11also named as compressor and moverhave their place. These two movable sliding elements 10, 11 form the front and rear sides of the combustion chamber 18, and are guided on the especially milled form of the engine housing 2 inside along. Depending on the position of the rotary disc 5 in the engine-housing 2, the slide elements 10, 11 are in forth or back pushed position, i.e. in combination with the rotating rotary disc 5, with the correspondingly shaped inner surface of the engine housing 2 and finally with the third sliding element 25 (=stop) fitting in the engine housing 2, they make possible the volume of the combustion chamber 18.

(21) The third sliding element 25 is seated according to position at the beginning of the expansion phase in an across milled slot 24 in the engine housing 2. It is advanced in the moment when the back side of the combustion chamber 18, that is the second sliding element or the compressor 11, is inserted compliant and thus serves as a stop for the combustion. Through this the expansion of the combustion forward is made possible and thus by its pressure on the front or first sliding element 10 (=mover) the development of power.

(22) This concept of the development of power is very beneficial: First, because the way of the expansion phase is a sight longer as the one of the compression phase (the ratio varies depending on the geometry of the engine) and because this way the power can develop unfettered forward. Second, because in such an internal-combustion engine 1 the principle of continuously infinite movement in his effect is met in its best, if the way of the development of power corresponds to this round movement.

(23) The third sliding element 25 will be only then reinserted flush into the engine housing 2, if through the corresponding position of the rotary disc 5 de novo fresh air is sucked into the combustion chamber 18. So the way will be free, and the first sliding element 10, the mover of the combustion chamber 18, pushes now, during the repetitive intake and compression process, the burned gases from the previous power stroke. The first two disposed sliding elements 10, 11 (the compressor 11 and the mover 10) in the rotary disc 5, are moved by suitably milled guides into the engine housing 2, whereas the third sliding element 25 (=stop) located in the engine housing 2 will be moved by appropriately milled guide grooves 26 in the rotary disk 5.

(24) Integrated into the engine housing 2 are the oil and water cycle and in addition to the preferred arranged in pairs intake and exhaust manifold, also the fuel injection and ignition system and ail milled threads that are needed for the assembly of the oil pan and auxiliary units such as the alternator and water pump.

(25) The choice of material for the construction of the internal-combustion engine depends on the current state of research material and thus also on the availability of further development of the most suitable materials. Even newer techniques in materials processing, such as e.g. the surface treatment by laser milling, the so-called honing, cause simply by optimizing of the lubricity of the engine parts an another significant reduction in friction and thus a considerable improvement in quality in the matter of attrition, function and durability.

(26) The internal-combustion engine operates in four strokes that to take place within each exactly one full rotation of the rotary disc. This entire four-stroke process, namely intake, compression, work and exhaust, also repeated anew with each engine rotation. Due to the particularity that the combustion chamber is connected to the rotary disc and therefore rotates with her, the progress of work can change a bit as to the point and timing of the fuel injection or an extraneous ignition such as an electrical/electronic ignition.

(27) For the present invention, are possible both an extraneous ignition by e.g. an electrical ignition system and also a self ignition.

(28) Hereinafter is described the four-stroke process with all different types of ignition.

(29) 1. Extraneous Ignition Intake: Through the moving combustion chamber past the intake port, fresh air is sucking into them. Compression: Fuel is injected and the fuel-air mixture will be compressed in the on and on forwardly moving chamber along the specially milled inner surface of the engine housing. Work: At the point of the maximum compression density in the combustion chamber and at the moment when the third sliding element, which serves as a stop for the expansion is expelled, the fuel-air mixture is extraneous ignited (e.g., by electrical/electronic ignition), inflamed in only a fraction of a second and thus moves forward the rotary disc. Exhaust: In the moment when the first sliding element of the combustion chamber (mover) has passed the exhaust port, the burnt gases can escape from this. But only when the first sliding element is past in the next round at the intake port, the third shift element (stop) is reinserted into the engine housing and thus former can now eject completely the burnt gases of the previous working step.

(30) The mixture formation can take place depending on the construction and necessity in different points and times of the compression stroke, or even just before the extraneous ignition. Petrol, gas and hydrogen propulsion, but also alternative energy sources are feasible.

(31) 2. Self Ignition Intake: Through the moving combustion chamber past the intake port, fresh air is sucking into them. Compression: The sucked in air will be compressed in the on and on forwardly moving chamber along the specially milled inner surface of the engine housing. Work: At the point of the maximum compression density in the combustion chamber and at the moment when the third sliding element, which serves as a stop for the expansion is expelled, fuel is injected, which is ignited immediately and thus moves forward the rotary disc. Exhaust: In the moment when the first sliding element of the combustion chamber (mover) has passed the exhaust port, the burnt gases can escape from this. But only when the first sliding element is past in the next round at the intake port, the third shift element (stop) is reinserted into the engine housing and thus former can now eject completely the burnt gases of the previous working step.

(32) The comparatively uncomplicated construction and the compact design, with relatively few components, ensure low dead load. They allow moreover facile functionality and great proper functioning, with few friction and low attrition. This increases the level of efficiency and allows in result in greater energy exploitation.

(33) The operation principles are not restricted to slack point. This material-protecting and virtually vibration-free workflow induces a splendidly smooth operation, reduces its failure proneness and increases contemporary its useful life.

LIST OF REFERENCE SIGN

(34) 1 internal-combustion engine 2 engine housing 3 interior space 4 inner wall 5 rotary disc 6 axis of rotation 7 circumferential area 8 first slot 9 second slot 10 first sliding element 11 second sliding element 12 fuel inlet 13 air inlet 34 exhaust outlet 15 compression area 36 ignition area 17 work area 18 combustion chamber 19 ignition device 20 projections 21,22 recesses 23 overlaps 24 slot 25 third sliding element 26 recess 27 gap 28 stabilizing element 29 driving shaft d outer diameter of the rotary disc i1, i2 inner diameter of the interior space, inner diameter i2 of the inner wall r radial distance of the slots.