Gear rotor engine

Abstract

According to the gear rotor engine, power output is achieved through an air suction gear rotor set, an acting gear rotor set and an ignition device, the air suction gear rotor set has the air suction and compression functions, the acting gear rotor set has the acting and exhaust functions, the ignition device can work in cooperation with an air inlet valve, the gear rotor engine is used in intermittent combustion acting occasions, the combustion efficiency is high, and the service life is long. The engine can be independently ignited to do work without arranging an air inlet valve, is used in a continuous combustion work occasion, is high in output rotating speed, and is high in transmission efficiency due to the fact that the thrust direction and the force arm of detonation gas are not changed all the time.

Description

Technical Field

[0001] This invention relates to a rotary engine, and more particularly to an engine that utilizes gears as rotors. Background Technology

[0002] In the field of internal combustion engines, the triangular rotary engine has the advantages of simple structure, high speed and small size. Many devices also use rotary engines as power sources. However, it also has disadvantages such as low transmission efficiency, small thrust and torque, and dead point position. The small thrust is mainly because during the combustion stroke, the force of the high-temperature gas doing work points in three directions: centripetal, clockwise and counterclockwise. The effective thrust of combustion mainly points towards the center of the outer circle of the rotor. The reason why the rotor can rotate continuously is because the inertial force causes the working force and lever arm to gradually increase in the direction of rotor rotation, which limits the application of this rotary engine. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a geared rotor engine that can press the thrust of combustion onto the tooth profile of the gear, that is, the thrust direction remains unchanged and the lever arm remains unchanged, so the transmission efficiency will be increased.

[0004] The technical solution of the present invention is a geared rotor engine, comprising: an air intake duct 17 and an air outlet duct 10 disposed in a housing 2, a rotor disposed in a cavity of the housing 2, and an ignition device, characterized in that the rotor is a power gear rotor assembly disposed in a power exhaust cavity of the housing 2, and the ignition device is disposed in the air intake duct 17.

[0005] The power exhaust chamber is divided into a power chamber 13 and an exhaust chamber 31. The power gear rotor assembly includes meshing gears 8 and 11. The tooth tip circles of the two gears, other than the meshing point, are in line or partial surface tangential contact with the inner walls of the power chamber 13 and the exhaust chamber 31, respectively. Gear 8 is installed and fixed in the housing 2 cavity through axle 9 and gear 11 is installed and fixed in the housing 2 cavity through axle 12. A transmission wheel 24 is provided at one end of axle 9 protruding from the housing 2. A power output shaft head 26 is provided at one end of axle 12 protruding from the housing 2. The ignition device includes a spark plug 15 and a fuel injector 7.

[0006] An intake valve 5 is provided in the intake duct 17. The shaft of the intake valve 5 is mounted on the guide seat 18, and its cover is pressed against the recessed stop 6. A rack and a gear at one end of a thin shaft 16 are provided on one side of the shaft of the intake valve 5. A cam 14 is provided at the other end of the thin shaft 16. The thin shaft 16 is used to transmit the timing signal of the ignition device.

[0007] Another technical solution of the present invention further includes: an air intake duct 1 disposed at one end of the housing 2, and an air intake gear rotor assembly disposed in the air intake compression chamber of the housing 2.

[0008] The intake and compression chamber is divided into an intake chamber 21 and a compression chamber 30. The intake gear rotor assembly includes meshing gears 3 and 19. The tooth tip circles of the two gears, other than the meshing point, are in line or surface tangential contact with the inner walls of the intake chamber 21 and the compression chamber 30, respectively. Gear 3 is installed and fixed in the cavity of the housing 2 through axle 4 and gear 19 is installed and fixed in the cavity of the housing 2 through axle 20. A transmission wheel 22 is provided at one end of axle 4 protruding from the housing 2, and is connected to the transmission wheel 24 through a transmission chain 23 for transmission.

[0009] Another technical solution for the ignition device of the present invention is: it is installed in the cup-shaped bracket 28 inside the air intake duct 29. In this case, there is no air intake valve 5, and the combustion process is continuous.

[0010] The beneficial effects of this invention are as follows: Solution 1: It is equipped with a power gear rotor assembly, an ignition device, and an intake valve 5. First, the gear rotor draws in air, the intake valve 5 opens, then the ignition device ignites and explodes, the gas expands, the intake valve 5 closes, and at the same time the gas drives the gear rotor to rotate, the air pressure in the power chamber 13 continuously decreases. When the external air pressure exceeds the air pressure in the power chamber 13, the intake valve 5 opens again, and the above process is repeated. In this way, because the high-pressure gas is always pressing on the gear tooth profile, it ensures that the direction of the gas thrust remains unchanged and the lever arm does not change, so the transmission efficiency is high. Option 2: Based on Option 1, an intake gear rotor assembly is added. Power from the power gear rotor assembly is transmitted to the intake gear rotor assembly via transmission wheels 24 and 22. This allows for the intake and compression of external gas. The compressed gas is then delivered to the power chamber 13 by opening the pressure regulating intake valve 5. The ignition device then ignites and detonates the gas. When the intake valve 5 closes, the detonating gas drives the power gear rotor assembly to rotate. This ensures that the gas in the power chamber 13 is compressed and under high pressure, improving combustion efficiency. The ignition devices in Options 1 and 2 are intermittent ignition and detonation. Another technical solution for the ignition device of this invention: The ignition device is located within the wind cup-shaped bracket 28. In this way, when the sealed compressed gas passes through the intake passage 29, the intake valve 5 is not required. The ignition device can directly ignite the gas, driving the rotor to rotate. After ignition, the spark plug 15 no longer needs to ignite, and continuous fuel injection allows for continuous combustion. The power gear rotor assembly also operates continuously. In addition to the advantages of Options 1 and 2, this solution also allows for ultra-high-speed operation. Attached Figure Description

[0011] Figure 1 Longitudinal sectional front view of the present invention (including the intake valve)

[0012] Figure 2 Enlarged view of a portion of the invention (including the intake valve) I.

[0013] Figure 3 Cross-sectional view of the present invention (including the intake valve).

[0014] Figure 4 View B of the present invention (including the intake valve)

[0015] Figure 5 View C of this invention (including the intake valve)

[0016] Figure 6 Longitudinal sectional front view of the present invention (excluding the intake valve)

[0017] Figure 7 Cross-sectional view of the present invention (excluding the intake valve).

[0018] Figure 8 Longitudinal sectional view of the gear rotor assembly of the present invention when the gear tooth tip circle and the inner wall of the cavity are in tangential contact. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] exist Figure 1 , Figure 2 , Figure 3 The first embodiment of the present invention is given, wherein the gear rotor engine includes: an intake duct 17 and an exhaust duct 10 disposed in the housing 2, a rotor disposed in the cavity of the housing 2, and an ignition device. The rotor is a power gear rotor assembly disposed in the power exhaust chamber of the housing 2, and the ignition device is disposed in the intake duct 17. The power exhaust chamber is divided into: a power chamber 13 and an exhaust chamber 31. The power gear rotor assembly includes: meshing gears 8 and 11, the tooth tip circles of which, other than the meshing point, are in line or partial surface tangential contact with the inner walls of the power chamber 13 and the exhaust chamber 31. In this embodiment, partial surface contact is used. See Figure 8 Gear 8 is mounted and fixed in the cavity of housing 2 via axle 9, and gear 11 is mounted and fixed in the cavity of housing 2 via axle 12. A transmission wheel 24 is provided at one end of axle 9 protruding from housing 2; a power output shaft head 26 is provided at one end of axle 12 protruding from housing 2. The ignition device includes: spark plug 15 and fuel injector 7. An intake valve 5 is provided in the intake manifold 17. The shaft of intake valve 5 is mounted on guide seat 18, and its cover presses against recess 6. A rack is provided on one side of the shaft of intake valve 5, which meshes with a gear at one end of a thin shaft 16. A cam 14 or other component that uses a rotational trigger signal is provided at the other end of the thin shaft 16. In this embodiment, a cam is used. The thin shaft 16 is used to transmit the timing signal for ignition by the ignition device. In this embodiment, the working process begins with the gear rotor drawing in air, the intake valve 5 opens, and the gas is drawn into the power chamber 13. Then, the ignition device ignites and explodes, the gas expands, the intake valve 5 closes, and at the same time, the gas drives the gear rotor to rotate, and the air pressure in the power chamber 13 continuously decreases. When the external air pressure exceeds the air pressure in the power chamber 13, the intake valve 5 opens again, and the above process is repeated. In this embodiment, the power chamber 13 also has the function of drawing in air.

[0021] exist Figures 1-5The present invention provides a second embodiment, which further includes: an air intake duct 1 disposed at one end of the housing 2, and an intake gear rotor assembly disposed within the intake compression chamber of the housing 2. The intake compression chamber is divided into an intake chamber 21 and a compression chamber 30. The intake gear rotor assembly includes meshing gears 3 and 19, whose tooth tip circles, other than at the meshing point, are in line or surface tangential contact with the inner walls of the intake chamber 21 and compression chamber 30, respectively. Gear 3 is mounted and fixed within the housing 2 cavity via axle 4, and gear 19 is mounted and fixed within the housing 2 cavity via axle 20. A transmission wheel 22 is disposed at one end of axle 4 protruding from the housing 2, and is connected to a transmission wheel 24 via a transmission chain 23, allowing the power of the power gear rotor assembly to drive the intake gear rotor assembly to rotate for intake and compression. This embodiment is a further optimization of the first embodiment, adding an intake compression gear rotor assembly to the first embodiment. This ensures that the gas entering the power chamber 13 is compressed, providing a complete four-stroke cycle of intake, compression, power, and exhaust, resulting in higher combustion efficiency. Because the intake gear rotor assembly is only responsible for intake and compression, its weight can be reduced, which lowers both the cost and the power loss of the power gear rotor assembly.

[0022] exist Figure 6 , Figure 7 The present invention provides a third embodiment: The only difference from the previous two embodiments is the ignition device. In this embodiment, the ignition device is located within the air intake duct 29, in a cup-shaped bracket 28. The cup-shaped bracket 28 is installed in a direction that facilitates gas passage, and the cup shape is convex on the outside and concave on the inside; in this embodiment, it is conical. This embodiment still possesses four complete strokes: intake, compression, power, and exhaust, resulting in high combustion efficiency. In this case, the intake valve 5 is no longer present, and the combustion and power process is continuous. This embodiment optimizes the continuous power output of Embodiment 2, similar to an aircraft engine, but because the gas compression process is sealed, the combustion efficiency is even higher.

Claims

1. A geared rotary engine, comprising: An air intake (17) and an air outlet (10) are provided in the housing (2), a rotor is provided in the cavity of the housing (2), and an ignition device is provided, characterized in that the rotor is a power gear rotor assembly provided in the power exhaust cavity of the housing (2), and the ignition device is provided in the air intake (17).

2. The geared rotor engine according to claim 1, characterized in that, The power exhaust chamber is divided into: power chamber (13) and exhaust chamber (31). The power gear rotor assembly includes: meshing gear (8) and gear (11). The tooth tip circles of the two gears outside the meshing point are in line or partial surface tangential contact with the inner walls of the power chamber (13) and exhaust chamber (31). The gear (8) is installed and fixed in the cavity of the housing (2) through the wheel axle (9) and the gear (11) is installed through the wheel axle (12). The end of the wheel axle (9) protruding from the housing (2) is provided with a transmission wheel (24). The end of the wheel axle (12) protruding from the housing (2) is provided with a power output shaft head (26). The ignition device includes: spark plug (15) and fuel injector (7).

3. A geared rotor engine according to claim 1 or 2, wherein an intake valve (5) is provided in the intake duct (17), the shaft of the intake valve (5) is mounted on the guide seat (18), and its cover presses against the recessed stop (6), characterized in that, The intake valve (5) has a rack and a gear at one end of a thin shaft (16) on one side of its shaft body. The other end of the thin shaft (16) has a cam (14). The thin shaft (16) is used to transmit the timing signal for ignition of the ignition device.

4. A geared rotor engine according to claim 1, characterized in that, it further... include: An air intake duct (1) is provided at one end of the housing (2), and an air intake gear rotor assembly is provided in the air intake compression chamber of the housing (2).

5. A geared rotor engine according to claim 4, characterized in that, The intake and compression chamber is divided into an intake chamber (21) and a compression chamber (30). The intake gear rotor assembly includes meshing gears (3) and (19). The tooth tip circles of the two gears outside the meshing point are in line or surface tangential contact with the inner walls of the intake chamber (21) and the compression chamber (30), respectively. Gear (3) is installed and fixed in the cavity of the housing (2) through axle (4) and gear (19) is installed and fixed in the cavity of the housing (2) through axle (20). A drive wheel (22) is provided at one end of the axle (4) protruding from the housing (2) and is connected to the drive wheel (24) through a drive chain (23) for transmission.

6. A geared rotor engine according to claim 1, 2, 4, or 5, characterized in that, The ignition device is located in the cup-shaped bracket (28) inside the air intake (29).

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