WO2022116648A1

WO2022116648A1 - Dual-rotor engine

Info

Publication number: WO2022116648A1
Application number: PCT/CN2021/119462
Authority: WO
Inventors: 彭力丰
Original assignee: 彭力丰
Priority date: 2020-12-04
Filing date: 2021-09-18
Publication date: 2022-06-09
Also published as: CN214007318U

Abstract

A dual-rotor engine, comprising a cylinder block (1), a first eccentric rolling and rotating mechanism (M1), a second eccentric rolling and rotating mechanism (M2), a first valve (10), a second valve (11), a first transmission gear (15), and a second transmission gear (16). A circular cylinder (1a) and a second circular cylinder (1b) which are communicated with each other are provided in the cylinder block (1), a first eccentric rolling and rotating assembly (N1) in the first eccentric rolling and rotating mechanism (M1) and a second eccentric rolling and rotating assembly (N2) in the second eccentric rolling and rotating mechanism (M2) are respectively positioned in the first circular cylinder (1a) and the second circular cylinder (1b), and by means of reverse synchronous transmission of the first transmission gear (15) and the second transmission gear (16), the first eccentric rolling and rotating assembly (N1) and the second eccentric rolling and rotating assembly (N2) can be periodically engaged and disengaged while the first circular cylinder (1a) and the second circular cylinder (1b) eccentrically roll and rotate, and are accordingly matched with the first valve (10) and the second valve (11) which are arranged between the first eccentric rolling and rotating assembly (N1) and the second eccentric rolling and rotating assembly (N2) to implement gas intake, compression, gas combustion, and gas exhaust.

Description

A twin-rotor engine

technical field

The utility model relates to a rotary engine, in particular to a double-rotor engine.

Background technique

Compared with the reciprocating engine, although the Wankel rotary engine can overcome many shortcomings of the reciprocating engine, due to the radial seal between the triangular rotor and the cylinder, it is only set by the three corners with very thin structural foundation. Therefore, it can only establish a seal with a very small effective sealing area, which must be sealed by applying a certain pressure, and the rotor works in a sliding and rotating manner with a relatively fast friction speed. Coupled with poor lubrication conditions, such a seal will not only have poor air tightness, but also be easily damaged. Different from the reciprocating engine, which has unique sealing conditions and lubrication conditions, the sealing problem has always been the most difficult problem to overcome in the rotary engine. This makes it difficult to achieve even if there are many potential advantages of the rotary engine, and even if it is achieved, it will always do more harm than good.

Utility model content

The purpose of this utility model is to solve the above-mentioned shortcomings of the rotary engine, and to provide a dual-rotor engine with a simple structure, which can reasonably solve the sealing problem and further improve the mechanical efficiency and thermal efficiency.

In order to achieve the above purpose, the present utility model adopts such a technical scheme: a dual-rotor engine, comprising a cylinder block and a front cylinder head and a rear cylinder head respectively fixed on the front and rear end faces of the cylinder block, the first eccentric rolling Rotating mechanism, second eccentric rolling rotating mechanism, first valve, second valve, spark plug;

The cylinder body is provided with a first circular cylinder and a second circular cylinder that communicate with each other, and a first valve is respectively opened at the intersection of the cylinder walls between the first circular cylinder and the second circular cylinder. The circular cavity and the second valve fixing circular cavity are provided with an air inlet communicating with the outside at the position where the cylinder wall of the first circular cylinder is close to the fixing circular cavity of the second valve, and the cylinder wall of the second circular cylinder is fixed close to the first valve The position of the circular cavity is provided with an exhaust port that communicates with the outside, the front cylinder head is provided with a first front axle hole and a second front axle hole at the center position corresponding to the first circular cylinder and the second circular cylinder respectively, and the rear cylinder The cover is respectively provided with a first rear axle hole and a second rear axle hole at the center positions corresponding to the first circular cylinder and the second circular cylinder;

The first eccentric rolling and rotating mechanism includes a first transmission shaft and a first eccentric rolling and rotating assembly sleeved on the first transmission shaft, and the first transmission shaft includes a first front end shaft, a first directional sliding shaft and a second A rear end shaft, the first front end shaft is sleeved in the first front shaft hole of the front cylinder head, the first eccentric rolling and rotating assembly is sleeved on the first directional sliding shaft and placed in the first circular cylinder, the first rear end The shaft is sleeved in the first rear axle hole of the rear cylinder cover, and the first eccentric rolling and rotating assembly placed in the first circular cylinder can compress the cylinder wall of the first circular cylinder and compress the cylinder wall of the first circular cylinder. internal space separation;

The second eccentric rolling and rotating mechanism includes a second transmission shaft and a second eccentric rolling and rotating assembly sleeved on the second transmission shaft, and the second transmission shaft includes a second front end shaft, a second directional sliding shaft and a second The rear end shaft, the second front end shaft is sleeved in the second front shaft hole of the front cylinder cover, the second eccentric rolling rotation assembly is sleeved on the second directional sliding shaft and placed in the second circular cylinder, the second rear end shaft is sleeved In the second rear axle hole of the rear cylinder head, the second eccentric rolling and rotating assembly placed in the second circular cylinder can compress the cylinder wall of the second circular cylinder and reduce the inner space of the second circular cylinder. separate;

The first shutter includes a first rotating part and a first swinging part, the first rotating part is movably installed in the fixed circular cavity of the first shutter, and the first swinging part is placed in the first eccentric rolling rotation assembly and the second eccentric rolling rotation assembly between and can swing back and forth, and can be in contact with the outer surfaces of the first eccentric rolling and rotating assembly and the second eccentric rolling and rotating assembly;

The second shutter includes a second rotating part and a second swinging part, the second rotating part is movably installed in the fixed circular cavity of the second shutter, and the second swinging part is placed in the first eccentric rolling and rotating assembly and the second eccentric rolling and rotating assembly between and can swing back and forth, and can be in contact with the outer surfaces of the first eccentric rolling and rotating assembly and the second eccentric rolling and rotating assembly;

The spark plug is arranged at a position where the cylinder wall of the second circular cylinder is close to the fixed circular cavity of the second valve, or at a position where the cylinder wall of the first circular cylinder is close to the fixing circular cavity of the first valve, or at the above two positions at the same time;

The first transmission shaft and the second transmission shaft are drivingly connected, and the rotation speed of the first transmission shaft and the second transmission shaft are the same and the rotation directions are opposite, so that the first eccentric rolling and rotating assembly and the second eccentric rolling and rotating assembly can be respectively in the first The circular cylinder and the second circular cylinder rotate eccentrically at the same speed and rotate eccentrically while periodically engaging and disengaging, so as to match the first valve and the first valve placed between the first rolling rotor and the second rolling rotor. The two valves cooperate, and in the first circular cylinder and the second circular cylinder, a suction chamber whose volume changes from small to large, a compression chamber whose volume changes from large to small, a gas cavity whose volume changes from small to large, and a gas cavity whose volume changes from Larger and smaller exhaust chambers to achieve suction, compression, gas, and exhaust.

Further, in order to realize mutual transmission with the same rotational speed and opposite rotation directions of the first transmission shaft and the second transmission shaft, the first rear end shaft of the first transmission shaft is sleeved with a first transmission gear, and the second transmission shaft The second rear end shaft is sleeved with a second transmission gear, the first transmission gear and the second transmission gear have the same number of teeth, and the first transmission gear and the second transmission gear mesh with each other; or, the first transmission shaft of the first transmission shaft The front end shaft is sleeved with a first transmission gear, the second front end sleeve of the second transmission shaft is sleeved with a second transmission gear, the first transmission gear and the second transmission gear have the same number of teeth, the first transmission gear and the second transmission gear mesh with each other. Through the gears meshing with each other for transmission, the solution for realizing the above purpose is simple.

Further, the first eccentric rolling and rotating assembly includes a first eccentric sliding sleeve, a first rolling rotor and a first elastic member, and a first eccentric sliding hole is opened inside the first eccentric sliding sleeve, and the first eccentric sliding sleeve is The first eccentric sliding hole is sleeved on the outside of the first directional sliding shaft of the first transmission shaft and can slide back and forth in the direction perpendicular to the axis line of the first transmission shaft, and the first elastic member is arranged in the first eccentric sliding hole Between the first directional sliding shaft and the first directional sliding shaft, the first rolling rotor is sleeved on the outside of the first eccentric sliding sleeve and placed in the first circular cylinder. The cylinder wall presses and separates the inner space of the first circular cylinder; and the second eccentric rolling and rotating assembly includes a second eccentric sliding sleeve, a second rolling rotor and a second elastic member, the second eccentric sliding A second eccentric sliding hole is opened inside the sleeve, and the second eccentric sliding sleeve is sleeved on the outside of the second directional sliding shaft of the second transmission shaft through its second eccentric sliding hole and can be along the direction perpendicular to the axis line of the second transmission shaft Reciprocating sliding, the second elastic member is arranged between the second eccentric sliding hole and the second directional sliding shaft, the second rolling rotor is sleeved on the outside of the second eccentric sliding sleeve and placed in the second circular cylinder, and can be in the second Under the action of the elastic force of the elastic element, the cylinder wall of the second circular cylinder is compressed, and the inner space of the second circular cylinder is divided. In this solution, the rotation speed of the first transmission shaft and the second transmission shaft are the same and the rotation directions are opposite to each other, so that the first rolling rotor in the first eccentric rolling rotation assembly and the second rolling rotor in the second eccentric rolling rotation assembly are respectively in The first circular cylinder and the second circular cylinder are periodically engaged and disengaged during eccentric rolling rotation, so as to cooperate with the first valve and the second valve disposed between the first rolling rotor and the second rolling rotor, In order to achieve suction, compression, gas, and exhaust; and the elastic part can make the rolling rotor maintain a certain pressure on the cylinder wall and the swing part of the valve that it rolls through, and can maintain a tight contact with the rolling rotor when it is engaged. contact to ensure a seal.

Further, the two sides of the first eccentric sliding sleeve corresponding to the first eccentric sliding hole are respectively a first thick body part and a first thin body part, and the first thick body part is placed in a position where the rotation phase of the first directional sliding shaft is advanced. On one side, the first thin body part is placed on the side where the rotation phase of the first directional sliding shaft lags; and the two sides of the second eccentric sliding sleeve corresponding to the second eccentric sliding hole are the second thick body part and the second eccentric sliding hole respectively. The thin body part, the second thick body part is placed on the side where the rotation phase of the second directional slide shaft lags, and the second thin body part is placed on the side where the rotation phase of the second directional slide shaft advances. With this solution, the centers of the first rolling rotor and the second rolling rotor can be deviated from the axis lines of the first transmission shaft and the second transmission shaft, respectively.

Further, the first elastic member is a coil spring, and the first elastic member is placed between the first eccentric sliding hole and the corresponding end of the first directional sliding shaft; the second elastic member is a coil spring, and the second elastic member is It is placed between the second eccentric sliding hole and the corresponding end of the second directional sliding shaft. The solution provides elastic force through the coil spring, which is easy to implement and has a simple and reliable structure.

Further, one end of the first directional sliding shaft corresponding to the first elastic member is provided with a first spring fixing hole, one end of the first elastic member is placed in the first spring fixing hole, and the other end is connected to the first eccentric sliding hole. The ends are in conflict; a second spring fixing hole is opened at one end of the second directional sliding shaft corresponding to the second elastic member, one end of the second elastic member is placed in the second spring fixing hole, and the other end is connected with the second eccentric sliding hole the ends are in conflict. The solution can facilitate the installation and fixation of the coil spring, and the installation of the coil spring is stable and reliable.

Compared with the prior art, the utility model has the following main advantages:

1. Not only the structure is simple and compact, the number of parts is small, but the shape structure and matching surface of each part are relatively simple, which is conducive to production and processing and guaranteeing quality standards;

2. Since the working strokes of suction, compression, gas and exhaust are relatively long, for the suction stroke, it is beneficial to reduce the suction resistance and improve the intake efficiency. Reducing compression vibration, for the gas stroke, not only helps to improve the combustion efficiency, but also makes the power and torque output smoother, and for the exhaust stroke, it is beneficial to reduce exhaust resistance and reduce exhaust noise;

3. Because the rotor of the present utility model works in a flexible rolling motion, it can not only greatly reduce the mechanical loss of the engine during operation, greatly improve the mechanical efficiency of the engine, but also further improve the reliability and durability of the seal. so that the engine can maintain high-efficiency work for a long time;

4. The expansion ratio can be made larger than the compression ratio to further improve the combustion efficiency of the engine and reduce exhaust noise.

Description of drawings

FIG. 1 is a radial structural diagram of a dual-rotor engine according to an embodiment of the present invention.

FIG. 2 is an axial structural diagram of a dual-rotor engine according to an embodiment of the present invention.

FIG. 3 is an exploded perspective view of a dual rotor engine according to an embodiment of the present invention.

FIG. 4 is a working principle diagram of a dual-rotor engine according to an embodiment of the present invention.

Reference number:

1. Cylinder block; 1a. The first circular cylinder; 1b. The second circular cylinder; 1c. The first valve fixed circular cavity; 1d. The second valve fixed circular cavity; 1e. ; 1g. The first circular cylinder wall; 1h. The second circular cylinder wall; 1i. Suction chamber; 1j. Compression chamber;

1k. Gas chamber; 1l. Exhaust chamber;

2. Front cylinder head; 2a. Shaft hole of the first front cylinder head; 2b. Shaft hole of the second front cylinder head;

3. Rear cylinder head; 3a. Shaft hole of the first rear cylinder head; 3b. Shaft hole of the second rear cylinder head;

4. The first transmission shaft; 4a. The first front end shaft; 4b. The first directional sliding shaft; 4c. The first rear end shaft; 4d. The first spring fixing hole;

5. The first eccentric sliding sleeve; 5a. The first eccentric sliding hole; 5b. The first thick body part; 5c. The first thin body part;

6. The first rolling rotor;

7. The second transmission shaft; 7a. The second front end shaft; 7b. The second directional sliding shaft; 7c. The second rear end shaft; 7d. The second spring fixing hole;

8. The second eccentric sliding sleeve; 8a. The second eccentric sliding hole; 8b. The second thick body part; 8c. The second thin body part;

9. The second rolling rotor;

10. The first valve; 10a. The first rotating part; 10b. The first swinging part;

11. The second shutter; 11a. The second rotating part; 11b. The second swinging part;

12. The first elastic part;

13. The second elastic member;

14. Spark plug;

15. The first transmission gear;

16. The second transmission gear;

17. The first positioning pin;

18. The second positioning pin;

19. Bolts;

M1. The first eccentric rolling rotation mechanism;

N1. The first eccentric rolling and rotating assembly;

M2. The second eccentric rolling rotation mechanism;

N2. The second eccentric rolling rotation assembly;

Detailed ways

1, 2, and 3, a dual-rotor engine includes a cylinder block 1, a front cylinder head 2, a rear cylinder head 3, a first valve 10, a second valve 11, a first eccentric rolling rotation mechanism M1, a first Two eccentric rolling rotation mechanisms M2, a first transmission gear 15, a second transmission gear 16, a spark plug 14, and the like.

The cylinder block 1 is provided with a first circular cylinder 1a and a second circular cylinder 1b that communicate with each other, and a first circular cylinder 1a and a second circular cylinder 1b between the first circular cylinder 1a and the second circular cylinder 1b A first valve fixing circular cavity 1c for fixing the first valve 10 and a second valve fixing circle for fixing the second valve 11 are respectively opened at the junctions of the cylinder walls on both sides where the wall 1g and the second circular cylinder wall 1h meet. In the cavity 1d, an air inlet 1e communicating with the outside is opened at the position of the first circular cylinder wall 1g of the first circular cylinder 1a close to the second valve fixing circular cavity 1d, and in the second circular cylinder 1b of the second circular cylinder 1b. The cylinder wall 1h of the circular cylinder is provided with an exhaust port 1f communicating with the outside at a position close to the first valve fixing circular cavity 1c, and the front cylinder head 2 is located at the center position corresponding to the first circular cylinder 1a and the second circular cylinder 1b respectively. A first front axle hole 2a and a second front axle hole 2b are opened, and a first rear axle hole 3a and a second rear axle hole 3a and a second rear axle hole are respectively opened in the rear cylinder head 3 at the center position corresponding to the first circular cylinder 1a and the second circular cylinder 1b. rear axle hole 3b.

The first eccentric rolling and rotating mechanism M1 includes a first transmission shaft 4 and a first eccentric rolling and rotating assembly N1 sleeved on the first transmission shaft 4. The first transmission shaft 4 includes a first front end shaft 4a, Similar to the first directional sliding shaft 4b and the first rear end shaft 4c of the square shaft structure, the first front end shaft 4a is sleeved in the first front shaft hole 2a of the front cylinder head 2, and the first eccentric rolling rotation assembly N1 is sleeved in The first directional sliding shaft 4b is placed in the first circular cylinder 1a, the first rear end shaft 4c is sleeved in the first rear shaft hole 3a of the rear cylinder head 3, and the first eccentric rolling and rotating assembly N1 includes a first eccentric The sliding sleeve 5 , the first rolling rotor 6 and the first elastic member 12 . The first eccentric sliding sleeve 5 is provided with a first eccentric sliding hole 5 a which is similar to a square hole structure and whose center is deviated from the circle center of the first eccentric sliding sleeve 5 . The two sides of an eccentric sliding sleeve 5 corresponding to the first eccentric sliding hole 5a are a first thick body part 5b and a first thin body part 5c respectively. On the sliding shaft 4b, and the first thick body part 5b is placed on the side where the rotation phase of the first directional sliding shaft 4b leads, and the first thin body part 5c is placed on the side where the rotation phase of the first directional sliding shaft 4b lags , the first eccentric sliding sleeve 5 sleeved on the first directional sliding shaft 4b can slide back and forth along the direction perpendicular to the axis line of the first transmission shaft 4, and the first elastic member 12 is arranged on the first eccentric sliding hole 5a and the Between the first directional sliding shafts 4b, the first elastic member 12 in this embodiment is a coil spring. The corresponding end is provided with a first spring fixing hole 4d, one end of the first elastic member 12 is placed in the first spring fixing hole 4d, and the other end collides with the end corresponding to the first eccentric sliding hole 5a, and the first rolling rotor 6 is sleeved on the first eccentric sliding sleeve 5, and can press the first circular cylinder wall 1g of the first circular cylinder 1a under the elastic force of the first elastic member 12, so that the first rolling rotor 6 is always Keep in close contact with the first circular cylinder wall 1g of the first circular cylinder 1a, so as to eliminate the gap between the first rolling rotor 6 and the first circular cylinder wall 1g, and achieve the Internal space divider.

The second eccentric rolling rotation mechanism M2 includes a second transmission shaft 7 and a second eccentric rolling rotation assembly N2 sleeved on the second transmission shaft 7. The second transmission shaft 7 includes a second front end shaft 7a, Similar to the second directional sliding shaft 7b and the second rear end shaft 7c of the square shaft structure, the second front end shaft 7a is sleeved in the second front shaft hole 2b of the front cylinder head 2, and the second eccentric rolling rotation assembly N2 is sleeved in the first The two directional sliding shafts 7b are placed side by side in the second circular cylinder 1b, the second rear end shaft 7c is sleeved in the second rear shaft hole 3b of the rear cylinder head 3, and the second eccentric rolling and rotating assembly N2 includes a second eccentric sliding sleeve 8. The second rolling rotor 9 and the second elastic member 13, the second eccentric sliding sleeve 8 is provided with a second eccentric sliding hole 8a that is similar to a square hole structure, and the hole center is deviated from the center of the second eccentric sliding sleeve 8. The second eccentric sliding hole 8a. The two sides of the sliding sleeve 8 corresponding to the second eccentric sliding hole 8a are the second thick body part 8b and the second thin body part 8c respectively. The second eccentric sliding sleeve 8 is sleeved on the second directional sliding shaft through the second eccentric sliding hole 8a. 7b, and the second thick body portion 8b is placed on the side where the rotation phase of the second directional slide shaft 7b lags, the second thin body portion 8c is placed on the side where the rotation phase of the second directional slide shaft 7b advances, and the sleeve is placed on the side of the first directional slide shaft 7b. The second eccentric sliding sleeve 8 on the two-directional sliding shaft 7b can reciprocately slide in a direction perpendicular to the axis of the second transmission shaft 7, and the second elastic member 13 is disposed in the second eccentric sliding hole 8a and the second directional sliding shaft. Between 7b, the second elastic member 13 of this embodiment is also a coil spring. In order to fix the second elastic member 13 of the coil spring scheme adopted in this embodiment, a corresponding end portion of the second directional sliding shaft 7b is provided. The second spring fixing hole 7d, one end of the second elastic member 13 is placed in the second spring fixing hole 7d, the other end is in contact with the end corresponding to the second eccentric sliding hole 8a, and the second rolling rotor 9 is sleeved on the second eccentric sliding hole 7d. The sliding sleeve 8 can press the second circular cylinder wall 1h of the second circular cylinder 1b under the action of the elastic force of the second elastic member 13, so that the second rolling rotor 9 always maintains the The second circular cylinder wall 1h of the cylinder 1b is in close contact to eliminate the gap between the second rolling rotor 9 and the second circular cylinder wall 1h, so as to separate the inner space of the second circular cylinder 1b.

The first shutter 10 includes a first rotating part 10a and a first swinging part 10b, the first rotating part 10a is movably installed in the first shutter fixed circular cavity 1c, and the first swinging part 10b is placed in the first eccentric rolling and rotating assembly N1 Between the first rolling rotor 6 and the second rolling rotor 9 in the second eccentric rolling rotation assembly N2, the first swinging part 10b placed between the first rolling rotor 6 and the second rolling rotor 9 can swing up and down reciprocatingly , and can be in contact with the outer surfaces of the first rolling rotor 6 and the second rolling rotor 9 .

The second shutter 11 includes a second rotating part 11a and a second swinging part 11b, the second rotating part 11a is movably installed in the second shutter fixed circular cavity 1d, and the second swinging part 11b is placed in the first eccentric rolling rotation assembly N1 Between the first rolling rotor 6 and the second rolling rotor 9 in the second eccentric rolling rotation assembly N2, the second swinging portion 11b placed between the first rolling rotor 6 and the second rolling rotor 9 can swing up and down reciprocatingly , and can be in contact with the outer surfaces of the first rolling rotor 6 and the second rolling rotor 9 .

The spark plug 14 is arranged at the position of the second circular cylinder wall 1h of the second circular cylinder 1b close to the second valve fixing circular cavity 1d or the first circular cylinder wall 1g of the first circular cylinder 1a is close to the first circular cylinder 1g. The position of the valve fixing circular cavity 1c or the above two positions at the same time, the solution shown in this embodiment is that the spark plug 14 is arranged on the second circular cylinder cylinder wall 1h of the second circular cylinder 1b close to the second valve fixing circular cavity For the position of 1d, see Figure 1 and Figure 3.

The first transmission gear 15 and the second transmission gear 16 have the same number of teeth, the first transmission gear 15 is fixedly mounted on the first front end shaft 4a or the first rear end shaft 4c of the first transmission shaft 4, and the second transmission gear 16 is fixed Installed on the second front end shaft 7a or the second rear end shaft 7c of the second transmission shaft 7, the solution shown in this embodiment is that the first transmission gear 15 and the second transmission gear 16 are respectively fixed and installed on the first transmission shaft 4. On the first rear end shaft 4c and the second rear end shaft 7c of the second transmission shaft 7, see FIGS. 2 and 3 , the first transmission gear 15 and the second transmission gear 16 are meshed, and the first transmission gear 15 and the second transmission gear 16 are meshed with each other. The transmission gear 16, in addition to enabling the first eccentric rolling rotation mechanism M1 and the second eccentric rolling rotation mechanism M2 to realize reverse synchronous transmission, and it is necessary to determine the distance between the first eccentric rolling rotation assembly N1 and the second eccentric rolling rotation assembly N2. The relative rotational positions of The second rolling rotor 9 can be periodically engaged and disengaged while eccentrically rolling and rotating along the first circular cylinder wall 1g and the second circular cylinder wall 1h at the same rotation speed and different rotation directions, so as to In cooperation with the first valve 10 and the second valve 11 provided between the first rolling rotor 6 and the second rolling rotor 9, the first circular cylinder 1a and the second circular cylinder 1b can be periodically successively arranged in the first circular cylinder 1a and the second circular cylinder 1b. It forms a suction chamber 1i whose volume changes from small to large, a compression chamber 1j whose volume changes from large to small, a gas chamber 1k whose volume changes from small to large, and an exhaust chamber 1l whose volume changes from large to small, so as to realize suction, compression, gas, exhaust;

The front cylinder head 2 and the rear cylinder head 3 must be positioned by the first positioning pin 17 and the second positioning pin 18 placed on the cylinder block 1 before being installed. They are respectively fixed and installed on the front end face and rear end face of the cylinder block 1;

The working principle of the present invention is shown in FIG. 4 , according to the above-mentioned dual-rotor engine, through the first transmission gear 15 and the second transmission gear 16 , the first eccentric rolling rotation mechanism M1 and the second eccentric rolling rotation mechanism M2 For reverse synchronous transmission, the eccentric rolling rotation mechanism M1 shown in FIG. 4 rotates in a counterclockwise direction, and the second eccentric rolling rotation mechanism M2 rotates in a clockwise direction. During the transmission process, the first eccentric rolling rotation assembly N1 and the second eccentric rolling rotation assembly N2 correspondingly rotate eccentrically in the counterclockwise and clockwise directions in the first circular cylinder 1a and the second circular cylinder 1b, respectively, so that the first rolling rotor 6 and the second rolling The rotors 9 rotate eccentrically in opposite directions along the first circular cylinder wall 1g and the second circular cylinder wall 1h, respectively, and are periodically engaged and disengaged in the simultaneous eccentric rolling rotation, so as to be compatible with those provided on them. The first valve 10 and the second valve 11 between the first valve 10 and the second valve 11 are matched accordingly, so that in the first circular cylinder 1a and the second circular cylinder 1b, the suction port 1e can firstly be formed with a volume that communicates with the intake port 1e from small to large. The air cavity 1i enters the suction stroke, inhales the gas, when the volume of the suction cavity 1i reaches the maximum value, it transforms into the compression cavity 1j from large to small and enters the compression stroke, compresses the gas, when the compression cavity 1j When the volume of the gas reaches the minimum value, the compressed gas in it is ignited by the spark plug 14, and then it is transformed into a gas chamber 1k whose volume increases from small to large, and enters the gas stroke to burn the gas to generate power. When the volume reaches the maximum value, it will be transformed into the exhaust chamber 11 which communicates with the exhaust port 1f from large to small, and then enters the exhaust stroke, and exhausts the gas until the working cycle of the round is completed. It can also be seen from the working principle shown in Figure 4 that the next working cycle has already started before the previous working cycle has ended, and the suction, compression, gas and exhaust strokes can be carried out at the same time And, because the intake, compression, gas and exhaust strokes are relatively long, it is beneficial to optimize the output characteristics of power and torque;

The function of the first eccentric sliding sleeve 5 is to enable the first rolling rotor 6 to use the internal air pressure of the compression chamber 1j and the gas chamber 1k to generate a diameter that changes with the change of the internal air pressure and the rotational position during the eccentric rolling rotation. Pressing the first circular cylinder wall 1g and the swinging part 10b of the first valve 10 through which it rolls, so that the first rolling rotor 6 can realize a flexible rolling seal with low friction and tight sealing during operation .

The function of the first elastic member 12 is to make the first rolling rotor 6 maintain a certain pressure on the first circular cylinder wall 1g and the swinging part 10b of the first valve 10 through which the first rolling rotor 6 rolls, and maintain a certain pressure in contact with the second rolling rotor 9 . When engaged, it can maintain close contact with it to ensure sealing.

The function of the second eccentric sliding sleeve 8 is to enable the second rolling rotor 9 to use the internal air pressure of the compression chamber 1j and the gas chamber 1k to generate a diameter that changes with the change of the internal air pressure and the rotational position during the eccentric rolling rotation operation. The second circular cylinder wall 1h and the swinging portion 11b of the second valve 11 are pressed against the pressure, so that the second rolling rotor 9 can achieve a flexible rolling seal with low friction and tight sealing during operation.

The function of the second elastic member 13 is to make the second rolling rotor 9 maintain a certain pressure on the second circular cylinder wall 1h and the swinging part 11b of the second valve 11 through which the second rolling rotor 9 rolls, and make the second rolling rotor 9 maintain a certain pressure in contact with the first rolling rotor 6 When engaged, it can maintain close contact with it to ensure sealing.

The first rolling rotor 6 and the second rolling rotor 9 cooperate with the first valve 10 and the second valve 11 to form a suction chamber 1i and a compression chamber in the first circular cylinder 1a and the second circular cylinder 1b in motion. 1j, the gas chamber 1k and the exhaust chamber 1l, at the same time, it is necessary to use the internal air pressure of the compression chamber 1j and the gas chamber 1k to make the first swing part 10b of the first valve 10 and the second swing of the second valve 11. The pressure formed by the portion 11b on the second rolling rotor 9 and the first rolling rotor 6, respectively, is a pressure proportional to the internal air pressure of the compression chamber 1j and the gas chamber 1k, and the pressure on the suction chamber 1i, the compression chamber 1j, the gas chamber 1k and the exhaust gas is The cavity 11 implements hermetic isolation.

According to the structural features of the present invention, if the outer diameter of the second rolling rotor 9 is set to be larger than the outer diameter of the first rolling rotor 6, and then the relevant structures are adjusted accordingly, the expansion ratio of the engine during operation can be increased. It is higher than the compression ratio to further improve the thermal efficiency of the engine.

The above is only a specific embodiment of the present utility model, but the design concept of the present utility model is not limited to this, and all non-substantial modifications made to the present utility model by using the present utility model concept fall into the protection of the present utility model. within the range.

Claims

A dual-rotor engine, comprising a cylinder block (1) and a front cylinder head (2) and a rear cylinder head (3) respectively fixed on the front and rear end faces of the cylinder block (1), characterized in that it further comprises: a first eccentric rolling rotation mechanism (M1), a second eccentric rolling rotation mechanism (M2), a first valve (10), a second valve (11), and a spark plug (14);

The cylinder block (1) is provided with a first circular cylinder (1a) and a second circular cylinder (1b) that communicate with each other, and between the first circular cylinder (1a) and the second circular cylinder (1b) A first valve fixing circular cavity (1c) and a second valve fixing circular cavity (1d) are respectively opened at the junction of the cylinder walls on both sides of the cylinder, and the first circular cylinder wall (1g) is close to the second valve fixing circular cavity ( The position of 1d) is provided with an air inlet (1e) communicating with the outside, and an exhaust port (1e) communicating with the outside is provided at a position where the second circular cylinder wall (1h) is close to the first valve fixing circular cavity (1c). 1f), the front cylinder head (2) is provided with a first front axle hole (2a) and a second front axle hole (2b) at the center positions corresponding to the first circular cylinder (1a) and the second circular cylinder (1b) respectively ), the rear cylinder head (3) is respectively provided with a first rear axle hole (3a) and a second rear axle hole (3b) at the center positions corresponding to the first circular cylinder (1a) and the second circular cylinder (1b) ;

The first eccentric rolling and rotating mechanism (M1) includes a first transmission shaft (4) and a first eccentric rolling and rotating assembly (N1) sleeved on the first transmission shaft (4), and the first transmission shaft (4) includes sequentially The first front end shaft (4a), the first directional sliding shaft (4b) and the first rear end shaft (4c) are connected, and the first front end shaft (4a) is sleeved on the first front shaft hole of the front cylinder head (2) In (2a), the first eccentric rolling and rotating assembly (N1) is sleeved on the first directional sliding shaft (4b) and placed in the first circular cylinder (1a), and the first rear end shaft (4c) is sleeved in the rear cylinder In the first rear axle hole (3a) of the cover (3), the first eccentric rolling and rotating assembly (N1) placed in the first circular cylinder (1a) can rotate the cylinder wall (1g) of the first circular cylinder (1g). compress and separate the inner space of the first circular cylinder (1a);

The second eccentric rolling and rotating mechanism (M2) includes a second transmission shaft (7) and a second eccentric rolling and rotating assembly (N2) sleeved on the second transmission shaft (7), and the second transmission shaft (7) includes sequentially The second front end shaft (7a), the second directional sliding shaft (7b) and the second rear end shaft (7c) are connected, and the second front end shaft (7a) is sleeved on the second front shaft hole ( 2b), the second eccentric rolling and rotating assembly (N2) is sleeved on the second directional sliding shaft (7b) and placed in the second circular cylinder (1b), and the second rear end shaft (7c) is sleeved on the rear cylinder head ( 3) In the second rear axle hole (3b), the second eccentric rolling and rotating assembly (N2) placed in the second circular cylinder (1b) can compress the cylinder wall (1h) of the second circular cylinder, and divide the inner space of the second circular cylinder (1b);

The first shutter (10) includes a first rotating part (10a) and a first swinging part (10b), the first rotating part (10a) is movably installed in the first shutter fixed circular cavity (1c), and the first swinging part (10b) is placed between the first eccentric rolling and rotating assembly (N1) and the second eccentric rolling and rotating assembly (N2) and can swing back and forth, and can be connected with the first eccentric rolling and rotating assembly (N1) and the second eccentric rolling and rotating assembly (N2) outer surface contact;

The second shutter (11) includes a second rotating part (11a) and a second swinging part (11b), the second rotating part (11a) is movably installed in the second shutter fixed circular cavity (1d), and the second swinging part (11b) is placed between the first eccentric rolling and rotating assembly (N1) and the second eccentric rolling and rotating assembly (N2) and can swing back and forth, and can be connected with the first eccentric rolling and rotating assembly (N1) and the second eccentric rolling and rotating assembly (N2) outer surface contact;

The spark plug (14) is arranged at the position of the second circular cylinder wall (1h) close to the second valve fixing circular cavity (1d) or the first circular cylinder cylinder wall (1g) is close to the first valve fixing circular cavity (1c) ) or both of the above-mentioned positions;

The first transmission shaft (4) is in driving connection with the second transmission shaft (7), so that the first transmission shaft (4) and the second transmission shaft (7) have the same rotational speed and opposite rotation directions, and make the first eccentric rolling The rotating assembly (N1) and the second eccentric rolling rotating assembly (N2) are capable of eccentrically rolling and rotating in the first circular cylinder (1a) and the second circular cylinder (1b) respectively at the same rotational speed and in different rotational directions while periodically rotating Engage and disengage.
The dual-rotor engine according to claim 1, characterized in that: the first rear end shaft (4c) of the first transmission shaft (4) is sleeved with a first transmission gear (15), and the second transmission shaft ( 7) The second rear end shaft (7c) is sheathed with a second transmission gear (16), the first transmission gear (15) and the second transmission gear (16) have the same number of teeth, the first transmission gear (15) and the The two transmission gears (16) mesh with each other; or, the first front end shaft (4a) of the first transmission shaft (4) is sheathed with a first transmission gear (15), and the second transmission shaft (7) has a second transmission gear (15). The front end shaft (7a) is sheathed with a second transmission gear (16), the first transmission gear (15) and the second transmission gear (16) have the same number of teeth, and the first transmission gear (15) and the second transmission gear (16) mesh with each other.
The dual-rotor engine according to claim 1, characterized in that: the first eccentric rolling rotation assembly (N1) comprises a first eccentric sliding sleeve (5), a first rolling rotor (6) and a first elastic member ( 12), a first eccentric sliding hole (5a) is opened inside the first eccentric sliding sleeve (5), and the first eccentric sliding sleeve (5) is sleeved on the first transmission shaft (5a) through its first eccentric sliding hole (5a). 4) outside the first directional sliding shaft (4b) and can slide back and forth along the direction perpendicular to the axis of the first transmission shaft (4), and the first elastic member (12) is arranged in the first eccentric sliding hole (5a) ) and the first directional sliding shaft (4b), the first rolling rotor (6) is sleeved on the outside of the first eccentric sliding sleeve (5) and placed in the first circular cylinder (1a), and can be placed in the first circular cylinder (1a). Under the action of the elastic force of the elastic member (12), the cylinder wall (1g) of the first circular cylinder is compressed, and the inner space of the first circular cylinder (1a) is divided.
The dual-rotor engine according to claim 1, characterized in that: the second eccentric rolling rotation assembly (N2) comprises a second eccentric sliding sleeve (8), a second rolling rotor (9) and a second elastic member ( 13), a second eccentric sliding hole (8a) is opened inside the second eccentric sliding sleeve (8), and the second eccentric sliding sleeve (8) is sleeved on the second transmission shaft (8a) through its second eccentric sliding hole (8a). 7) outside the second directional sliding shaft (7b) and can slide back and forth along the direction perpendicular to the axis of the second transmission shaft (7), and the second elastic member (13) is arranged in the second eccentric sliding hole (8a) Between it and the second directional sliding shaft (7b), the second rolling rotor (9) is sleeved on the outside of the second eccentric sliding sleeve (8) and placed in the second circular cylinder (1b), and can be placed in the second elastic member Under the action of the elastic force of (13), the cylinder wall (1h) of the second circular cylinder is compressed, and the inner space of the second circular cylinder (1b) is divided.
The dual-rotor engine according to claim 3, characterized in that: the two sides of the first eccentric sliding sleeve (5) corresponding to the first eccentric sliding hole (5a) are the first thick body part (5b) and the first thick body part (5b), respectively. The thin body part (5c), the first thick body part (5b) is placed on the side where the rotation phase of the first orientation slide shaft (4b) is advanced, and the first thin body part (5c) is placed on the first orientation slide shaft ( 4b) Rotate one side of the phase lag.
The dual-rotor engine according to claim 4, characterized in that: the two sides of the second eccentric sliding sleeve (8) corresponding to the second eccentric sliding hole (8a) are the second thick body part (8b) and the second thick body part (8b) respectively. The thin body part (8c), the second thick body part (8b) is placed on the side of the second directional slide shaft (7b) whose rotation phase lags, and the second thin body part (8c) is placed on the second directional slide shaft (7b) Rotate the leading side of the phase.
The dual-rotor engine according to claim 3, characterized in that: the first elastic member (12) is a coil spring, and the first elastic member (12) is placed in the first eccentric sliding hole (5a) and in the first orientation between the corresponding ends of the sliding shaft (4b).
The dual-rotor engine according to claim 4, characterized in that: the second elastic member (13) is a coil spring, and the second elastic member (13) is placed in the second eccentric sliding hole (8a) and the second directional sliding hole (8a) between the corresponding ends of the shaft (7b).
The dual-rotor engine according to claim 7, wherein a first spring fixing hole (4d) is formed at one end of the first directional sliding shaft (4b) corresponding to the first elastic member (12), and the first elastic One end of the piece (12) is placed in the first spring fixing hole (4d), and the other end is in conflict with the end of the first eccentric sliding hole (5a).
The dual-rotor engine according to claim 8, wherein a second spring fixing hole (7d) is formed at one end of the second directional sliding shaft (7b) corresponding to the second elastic member (13), and the second elastic member One end of (13) is placed in the second spring fixing hole (7d), and the other end is in contact with the end of the second eccentric sliding hole (8a).