ROTARY VANE INTERNAL COMBUSTION ENGINE

Abstract

The engine comprises an outer shell in the shape of a fixed ring with two lids, an internal rotor with an inlaid central shaft and bearings. On the inner surface of the shell, inlet, compression, explosion and escape chambers are positioned. The internal rotor is endowed with drive axle having a cylindrical body endowed with radial slots which house at least one vane pressed radially against a shell by spring. The outer shell of the Otto engine has a carburetor and a feed duct of the air-fuel mixture. At the start of the explosion chamber the spark plug is positioned. At the end of the explosion chamber an escape chamber with an escape duct is positioned. The outer shell of the Diesel engine has a butterfly valve and an air feed duct. At the start of the explosion chamber a fuel injection spout is positioned, and at the end of the explosion chamber an escape chamber with an escape duct is positioned.

Claims

1. A Rotary Vane Internal Combustion Engine characterized by comprising an outer shell (1) in the shape of a fixed outer ring with two lids (2), an internal rotor (3) with an inlaid central shaft (4) and bearings (5) which support the central shaft (4), and on the inner surface of the shell (1) straight-cog gearing type cavities are made acting as inlet (11), compression (12), explosion (13) and escape (14) chambers, the internal rotor (3) being endowed with drive axle and presents the shape of a cylindrical body (31) where the radial slots (32) are machined which house at least one vane (6) which is pressed radially against the inner surface of the shell (1) by a spring (7).

2. The Rotary Vane Internal Combustion Engine, according to claim 1, characterized in that the vanes (6) present rounded edges (61).

3. The Rotary Vane Internal Combustion Engine, according to claim 1, characterized by having on the outer shell (1) of the engine that operates on the Otto cycle and next to the inlet chamber (11) a carburetor and a feed duct (15) of the air and fuel mixture, and at the start of the explosion chamber (13) the spark plug (16) is positioned and at the end of the explosion chamber (13) an escape chamber (14) where the escape duct (17) is positioned.

4. The Rotary Vane Internal Combustion Engine, according to claim 1, characterized by having on the outer shell (1) of the engine that operates on the Diesel cycle next to the inlet chamber (11) a butterfly valve and an air feed duct (15), and at the start of the explosion chamber (13) a fuel injection spout (16′) is positioned, and at the end of the explosion chamber (13) an escape chamber (14) where the escape duct (17) is positioned.

5. The Rotary Vane Internal Combustion Engine, according to claim 1, characterized by having on the outer shell (1) channels (18) which interconnect two adjacent explosion chambers (13) acting on the discharge of the gases stemming from the burning, comprised by a gas by-pass device.

6. The Rotary Vane Internal Combustion Engine, according to claim 5, characterized in that the engine brake is endowed with a butterfly valve (19) inside the escape duct (17) to restrict the rotation of the internal rotor (3).

7. The Rotary Vane Internal Combustion Engine of claim 1 characterized by being comprised of an inner shell (10) inlaid in a central axis (40), two lids (20) and an outer rotor (30), and the outer surface of the shell (10) has inlet chambers (110), compression chamber (120), explosion chamber (130) and escape chamber (140) and the outer rotor (30) is ring shaped (310) where radial slots (320) are machined which house, at least one vane (60) which is pressed radially against the inner shell (10) by spring (70).

8. The Rotary Vane Internal Combustion Engine, according to claim 7, characterized in that the vanes (60) have rounded edges.

9. The Rotary Vane Internal Combustion Engine, according to claim 7, characterized by having on the inner shell (10) of the engine that operates on the Otto cycle next to the inlet chamber (110) a feed duct (150) of the air and fuel mixture, at the start of the explosion chamber (130) a spark plug (160) is positioned and at the end of the explosion chamber (130) an escape chamber (140) where the escape duct (170) is positioned.

10. The Rotary Vane Internal Combustion Engine, according claim 7, characterized by having on the inner shell (10) of the engine that operates on the Diesel cycle, next to the inlet chamber (110) an air feed duct (150), at the start of the explosion chamber (130) a fuel injection spout (160′) is positioned and at the end of the explosion chamber (130) an escape chamber (140) where the escape duct (170) is positioned.

11. The Rotary Vane Internal Combustion Engine, according to claim 9, characterized by having on the inner shell (10) channels (180) which interconnect two adjacent explosion chambers (130) acting on the discharge of gases stemming from the burning, comprised by a gas bypass device.

12. The Rotary Vane Internal Combustion Engine, according to claim 9, characterized by having a set of propellers (8) with a central pillow block (81) that rotates on the central axis (40).

13. The Rotary Vane Internal Combustion Engine, according to claim 9, characterized by having a transmission system (9) mounted on one of the lids (20) of the outer rotor (30), of the crown or pinion type.

14. The Rotary Vane Internal Combustion Engine, according to claim 9, characterized by having a transmission system (9) mounted on the periphery of the outer ring, of the straight-cog gearing type.

Description

LIST OF DRAWINGS

[0051] In the present specification, the components of the drawings are not necessarily to scale, the emphasis having been placed on illustrative examples of the aspects of the invention, which may be represented in simplified form.

[0052] In order for the present invention to be fully understood and led to fruition by any person skilled in this technological sector, below is a clear and full description of each one of the accompanying drawings presented below:

[0053] FIG. 1—perspective of the rotary engine with vanes mounted;

[0054] FIG. 2—perspective of the rotary engine without the lids;

[0055] FIG. 3—radial section of the rotary engine;

[0056] FIG. 4—isolated perspective of the internal rotor;

[0057] FIG. 5—front view of the internal rotor with vanes mounted;

[0058] FIG. 6—preferred profile of a vane;

[0059] FIG. 7—radial section of the rotary engine applied to the Otto cycle;

[0060] FIG. 8—radial section of the rotary engine applied to the Diesel cycle;

[0061] FIG. 9—radial section of the engine, indicating the engine brake;

[0062] FIG. 10—perspective of a constructive option of the engine;

[0063] FIG. 11—perspective of the outer ring of the constructive option of the engine;

[0064] FIG. 12—radial section of the engine of the constructive option;

[0065] FIG. 13—radial section of the constructive option of the engine applied to the Otto cycle;

[0066] FIG. 14—radial section of the constructive option of the engine applied to the Diesel cycle;

[0067] FIG. 15—radial section of the constructive option of the engine indicating the engine brake;

[0068] FIG. 16—perspective of the constructive option of the rotary engine applied to the reaction engine;

[0069] FIG. 17—perspective of the constructive option of the rotary engine with transmission system by front gear;

[0070] FIG. 18—perspective of the constructive option of the rotary engine with transmission system by peripheral gear.

DETAILED DESCRIPTION OF THE INVENTION

[0071] FIGS. 1 and 2 illustrate the main components of the basic concept of the rotary engine which is comprised of an outer shell (1) in the shape of a fixed outer ring with two lids (2), an internal rotor (3) with an inlaid central shaft (4) and bearings (5) which support the central axis (4).

[0072] FIG. 3 illustrates, merely as an example, the rotary engine of the invention that performs four work cycles per revolution. On the inner surface of the shell (1) cavities are executed, acting as chambers (11, 12, 13 and 14) appropriately shaped to enable the working of the engine, as will be detailed ahead.

[0073] FIGS. 4 and 5 detail the internal rotor (3) which performs the function of drive axle and presents the shape of a cylindrical body (31) where radial slots (32) are machined which house vanes (6). Each slot radial (32) can house one or more vanes (6) which are rectangular plates having suitable thickness to sustain the thrusts to which they are subject. The vanes (6) are mounted in the radial slots (32) of the internal rotor (3), with slide adjustment, but which provide the best sealing between the chambers, the outer shell (1) and the lids (2).

[0074] Each vane (6) is pressed radially against the inner surface of the shell (1) by spring (7) to guarantee the best possible sealing.

[0075] FIG. 6 details a preferred profile of the vanes (6) which may present rounded edges (61) in order to temper its sliding over the undulated surface formed by the chambers of the outer shell (1), improving sealing.

[0076] FIG. 7 details the example of the possible engine of FIG. 3 which performs four cycles per revolution, on the inner surface of the shell (1) cavities are executed, acting as inlet (11), compression (12), explosion (13) and escape (14) chambers. The working path of the engine lies in the following stages: Lets in, Compresses, Explode (expands and performs work) and Escape. The path is a direct, minimal pathway, without comings and goings, which starts at the inlet chamber (11) which LETS IN air through the butterfly valve (Cycle Diesel) or air and fuel through a carburetor (Otto Cycle), soon after passing onto the compression chamber (12) which COMPRESSES, followed by the reception of a jet of fuel (Cycle Diesel) or an electric spark (Otto Cycle) which EXPLODES and EXPANDS in the explosion chamber (13). The more intense the expansion, the greater the pressure and the energy contained in the fuel, performing WORK on the path of maximum torque and maximum distance, obtaining the maximum energy usage with the minimum of thrust. So the path and consequently, the engine, are at maximum energy efficiency. Finally, the ESCAPE of the gases occurs through the discharge in the escape chamber (14).

[0077] In the engine that operates on the Otto cycle, the outer shell (1) next to the inlet chamber (11) presents a carburetor and a feed duct (15) of the air and fuel mixture. At the start of the explosion chamber (13) the spark plug (16) is positioned. The end of the explosion chamber (13) characterizes an escape chamber (14) where the escape duct (17) is positioned.

[0078] FIG. 8 details an engine that operates on the Diesel cycle, whose outer shell (1) next to the inlet chamber (11) presents a butterfly valve and an air feed duct (15). At the start of the explosion chamber (13), the fuel injection spout (16′) is positioned. The end of the explosion chamber (13) characterizes an escape chamber (14) where the escape duct (17) is positioned.

[0079] FIG. 9 details the outer shell (1) of the engine which presents the effect of the engine brake which is comprised of a channel (18) which interconnnects two adjacent explosion chambers (13). It consists of a system that acts on the discharge of the gases stemming from the burning, comprised of a gas bypass device installed soon after the explosion, which cease their effect on the continuous vane and will leave further ahead. There is thus created a low-pressure region, just ahead of the vane which is in the explosion region, where the train of chambers is working. Coupled to the by-pass and working at the same time, a regulating obstruction device is placed for the discharge of burned gases. With this closing system, when driven, the engine will still work in a stricter regime, further helping with the brakes. This will make its working safer in emergencies.

[0080] Optionally, the engine brake may present a butterfly valve (19) inside the escape duct (17) to order to create another restriction to the rotation of the internal rotor (3).

[0081] This engine brake can be applied both on the Diesel cycle and on the Otto cycle as in the Two-Stroke Cycle.

[0082] FIG. 10 illustrates a constructive and exemplary option of the rotary engine which is comprised of an inner shell (10) inlaid in a central axis (40), two lids (20) and an outer rotor (30) which can be applied as Reaction Engine.

[0083] As seen FIGS. 11 and 12, on the outer surface of the shell (10), chambers (110, 120, 130 and 140) are executed, suitably shaped to enable the working of the engine, as detailed ahead. The outer rotor (30) fulfills the function of drive axle and is ring-shaped (310) where radial slots (320) are machined which house vanes (60). Each slot radial (320) can house one or more vanes (60) which are rectangular plates having a suitable thickness to sustain the thrusts to which they are subject. The vanes (60) are mounted in the radial slots (320) of the outer rotor (30) with slide adjustment, but which provide the best sealing between the chambers, the inner shell (10) and the lids. Each vane (60) is pressed radially against the inner shell (10) by a spring (70) to guarantee the best possible sealing.

[0084] FIG. 13 illustrates the constructive option of the engine that operates on the Otto cycle, whose inner shell (10) next to the inlet chamber (110) presents the feed duct (150) of the air and fuel mixture. At the start of the explosion chamber (130) a spark plug (160) is positioned. The end of the explosion chamber (130) characterizes an escape chamber (140) where the escape duct (170) is positioned.

[0085] FIG. 14 details the constructive option of the engine that operates on the Diesel cycle, whose inner shell (10) next to the inlet chamber (110) presents an air feed duct (150). At the start of the explosion chamber (130) the fuel injection spout (160′) is positioned. The end of the explosion chamber (130) characterizes an escape chamber (140) where the escape duct (170) is positioned.

[0086] FIG. 15 details the inner shell (10) of the engine which presents the effect of the engine brake which consists of a channel (180) that interconnects two adjacent explosion chambers (130). This engine brake can be applied to both cycles, Diesel and Otto.

[0087] FIG. 16 illustrates the constructive option of the engine applied as reaction engine which can operate on the Otto cycle or Diesel cycle, presenting a set of propellers (8) with a central pillow block (81) that rotates on the central axis (40).

[0088] FIG. 17 illustrates an option of the rotary engine which presents a transmission system (9) mounted on one of the lids (20) of the outer rotor (30), for example, a crown and pinion system.

[0089] FIG. 18 illustrates an option of the rotary engine which presents a transmission system (9′) mounted on the periphery of the outer ring, for example, a straight-cog gearing.

[0090] It is emphasized that the drawings and description presented are not intended to limit the forms of carrying out the inventive concept now proposed, but rather to illustrate and render comprehensible the conceptual innovations disclosed in this solution. Therefore, the descriptions and images should be interpreted illustratively and not limitatively, and there may be other equivalent or similar forms of implementation which should be deemed within the scope of the present invention.

[0091] The present specification refers to an inventive rotary internal combustion engine endowed with vanes that results in a new technical effect in relation to the state of the art, thus proving its novelty, inventive activity, full disclosure and industrial application, meeting all the essential requirements for the grant of a patent of invention.