CN106968787B

CN106968787B - Rotor engine

Info

Publication number: CN106968787B
Application number: CN201710403337.0A
Authority: CN
Inventors: 刘娣; 周国鹏; 金鹏; 王赟
Original assignee: Hubei University of Science and Technology
Current assignee: Hubei University of Science and Technology
Priority date: 2017-06-01
Filing date: 2017-06-01
Publication date: 2022-09-06
Anticipated expiration: 2037-06-01
Also published as: CN106968787A

Abstract

The invention provides a rotor engine, and belongs to the technical field of engines. The rotor engine solves the technical problems of serious abrasion, difficult sealing and the like of the existing rotor engine. A rotor engine comprises a cylinder body and a rotor positioned in the cylinder body, wherein the rotor divides the cylinder body into three combustion chambers, the rotor comprises a body and sealing parts respectively positioned at three edges of the body, a plurality of sealing steel rings are arranged on the inner wall of the cylinder body, rotating columns capable of freely rotating are arranged at the sealing parts, sealing assemblies in one-to-one correspondence with the sealing steel rings are arranged on the rotating columns, hydraulic cavities in one-to-one correspondence with the rotating columns are arranged on the body, a pressure synchronizing device capable of synchronizing the pressure in the hydraulic cavities and the pressure of the two combustion chambers on two sides of the sealing chamber with the higher pressure is arranged on the body, and the sealing parts can be tightly pressed with the inner wall of the cylinder body under the action of the pressure in the hydraulic cavities.

Description

Rotor engine

Technical Field

The invention belongs to the technical field of engines, relates to an engine, and particularly relates to a rotor engine.

Background

The rotor of the rotor engine does work three times per rotation, and has the advantage of high horsepower volume ratio (more power can be output with smaller engine volume) compared with the common four-stroke engine which does work once per rotation of two circles. In addition, because of the axial operating characteristics of the rotary engine, it does not require precise crankshaft balancing to achieve higher operating speeds. The whole engine only has two rotating parts, compared with a general four-stroke engine which has more than twenty moving parts such as an air inlet valve and an air outlet valve, the structure is greatly simplified, and the possibility of failure is greatly reduced. In addition to the above advantages, the advantages of the rotor engine also include smaller size, lighter weight, lower center of gravity, and less vibration.

However, the rotary engine has the following disadvantages:

the abrasion is serious, and the service life of parts is short. Because only one radial sealing sheet is arranged between adjacent containing cavities of the triangular rotor engine, the radial sealing sheet is always in line contact with the cylinder body, and the contact position of the radial sealing sheet and the cylinder body is always changed, three combustion chambers are not completely isolated (sealed), and the radial sealing sheet is quickly worn. After the engine is used for a period of time, the air leakage problem is easily caused by the abrasion of an oil seal material, and the oil consumption and pollution are greatly increased. Its unique mechanical structure also makes such engines difficult to maintain.

Disclosure of Invention

The present invention is directed to a rotor engine, which solves the above problems of the prior art, and provides a rotor engine, which can enhance the sealing effect between the rotor and the cylinder and reduce the wear between the rotor and the cylinder.

The purpose of the invention can be realized by the following technical scheme: a rotary engine comprising a cylinder and a rotor located within the cylinder, the rotor dividing the cylinder into three combustion chambers, it is characterized in that the rotor comprises a body and sealing parts respectively positioned at three edges of the body, a plurality of sealing steel rings are arranged on the inner wall of the cylinder body, a rotating column capable of freely rotating is arranged at the sealing part, the rotary column is provided with sealing components which are in one-to-one correspondence with the sealing steel rings, the sealing components comprise a first clamping piece and a second clamping piece which are fixedly arranged on the rotary column, the first clamping piece and the second clamping piece are respectively positioned at two sides of the sealing steel ring, the body is provided with hydraulic cavities which are in one-to-one correspondence with the rotating columns, the body is provided with a pressure synchronizer which can keep the pressure in the hydraulic cavity synchronous with the pressure of the higher pressure in the two combustion chambers at two sealed sides, and the sealing part can be tightly pressed with the inner wall of the cylinder body under the action of the pressure in the hydraulic cavity; and hydraulic oil is filled in the hydraulic cavity.

The first clamping piece and the second clamping piece clamp the sealing steel ring, so that the sealing steel ring is clamped, the sealing contact area is increased, the sealing effect is improved, the rotating column is in a rotating state in the rotating process of the rotor, the sealing effect is guaranteed, meanwhile, the friction between the rotor and the inner wall of the cylinder body is rolling friction, the abrasion degree and the abrasion speed are greatly reduced, and the technical problem that the sealing and the abrasion of a rotor engine are difficult to take into account is solved well.

In a foretell rotor engine, sealing part department has a breach, the rotary column is located in the breach, the hydraulic pressure chamber with be provided with a spout between the breach, spout intercommunication hydraulic pressure chamber with the breach, sliding connection has a slider in the spout, the slider is close to the one end of breach has a plurality of lantern ring, the rotary column is inserted and is established in the lantern ring, the one end that the slider is close to the hydraulic pressure chamber has a pressure portion, be connected with a plurality of connection pieces on the body, the connection piece will the rotary column restriction is in the breach.

The lantern ring links to each other with the rotary column, receives the limiting displacement of connection piece simultaneously, and the rotary column can be followed and slided in the spout, on the one hand conducts connection piece, lantern ring and sealing steel ring with hydraulic oil, plays heat dissipation and lubricated effect, and on the other hand, the hydraulic pressure of hydraulic pressure intracavity is used in the portion that receives for sealed effect obtains promoting between seal assembly and the sealing steel ring.

In the rotor engine, the pressure synchronization device comprises a first through hole which is formed in the body and penetrates through the hydraulic cavity and the combustion chamber located on one side of the hydraulic cavity, the inner wall of the first through hole is provided with internal threads, the first through hole is connected with a first valve seat in an internal thread mode, a cylindrical first rubber sleeve is fixedly arranged on the first valve seat, one end of the first rubber sleeve is fixedly connected with the first valve seat, the other end of the first rubber sleeve is fixedly provided with a first valve core, a first sealing ring which abuts against the inner wall of the first through hole is sleeved on the first valve core, and a first tension spring in a tension state is connected between the first valve seat and the first valve core; the pressure synchronizer also comprises a second through hole which is arranged on the body and runs through the hydraulic cavity and a combustion chamber positioned on the other side of the hydraulic cavity, the inner wall of the second through hole is provided with an internal thread, the internal thread of the second through hole is connected with a second valve seat, the second valve seat is fixedly provided with a second cylindrical rubber sleeve, one end of the second rubber sleeve is fixedly connected with the second valve seat, the other end of the second rubber sleeve is fixedly provided with a second valve core, the second valve core is sleeved with a second sealing ring which is abutted against the inner wall of the second through hole, and a second tension spring which is positioned in a stretching state is connected between the second valve seat and the second valve core.

The first valve core and the second valve core are limited by the first valve seat and the second valve seat, so that the lowest value of the pressure in the hydraulic cavity is guaranteed, and the minimum sealing pressure between the sealing part and the cylinder body is guaranteed; the hydraulic cavity is communicated with a hydraulic system of the engine and continuously provides hydraulic oil for the hydraulic cavity; through the limiting action of first disk seat and second disk seat, receive the effect of atmospheric pressure in two combustion chambers respectively in through-hole one and the through-hole two, the great person of pressure plays leading effect to the hydraulic oil of hydraulic pressure intracavity, causes the sealing pressure between sealing and the cylinder body and the pressure in the great combustion chamber of pressure to keep synchronous, when the guarantee sealing strength, avoids continuously working under the high strength between sealing and the cylinder body, and each part effectual to sealing department plays the guard action.

In the rotor engine, the hydraulic cavity is strip-shaped, and the first through hole and the second through hole are both located in the middle of the hydraulic cavity.

In the above rotor engine, the collar and the connecting piece are disposed between two adjacent sealing portions. The hydraulic pressure chamber both ends are sheltered from through the apron and are sealed to the dismouting of each part is convenient for.

Compared with the prior art, the invention has the following advantages:

1. the clamping piece I and the clamping piece II are used for clamping the sealing steel ring, so that the sealing steel ring not only plays a role in guiding the rotor, but also increases the sealing contact area and improves the sealing effect.

2. The lantern ring links to each other with the rotary column, receives the limiting displacement of connection piece simultaneously, and the rotary column can be followed and slided in the spout, on the one hand conducts connection piece, lantern ring and sealing steel ring with hydraulic oil, plays heat dissipation and lubricated effect, and on the other hand, the hydraulic pressure of hydraulic pressure intracavity is used in the portion that receives for sealed effect obtains promoting between seal assembly and the sealing steel ring.

3. Through the limiting action of the first valve seat and the second valve seat, the first through hole and the second through hole are respectively internally provided with air pressure in the two combustion chambers, and the larger pressure plays a leading role in hydraulic oil in the hydraulic chamber, so that the sealing pressure between the sealing part and the cylinder body is kept synchronous with the pressure in the combustion chamber with the larger pressure, the continuous work under high strength between the sealing part and the cylinder body is avoided while the sealing strength is ensured, and the effective part at the sealing part is protected.

Drawings

Fig. 1 is a schematic view of the overall structure of the present rotary engine.

Fig. 2 is a schematic view of a connection structure of a rotor and a cylinder in the present rotor engine.

Fig. 3 is a sectional view in the direction D in fig. 2.

Fig. 4 is a schematic structural view of a rotor in the present rotary engine.

Fig. 5 is an enlarged view of a portion a in fig. 2.

Fig. 6 is an enlarged view of a portion B in fig. 2.

Fig. 7 is an enlarged view of a portion C in fig. 2.

In the figure, 1, a cylinder body; 2. a rotor; 21. a body; 22. a sealing part; 23. a notch; 3. a combustion chamber; 4. sealing the steel ring; 5. turning the column; 6. a seal assembly; 61. a first clamping piece; 62. a second clamping piece; 63. a hydraulic chamber; 64. a chute; 65. a slider; 66. a collar; 67. a pressure receiving portion; 68. connecting sheets; 71. a first through hole; 72. a first valve seat; 73. a first rubber sleeve; 74. a first valve core; 75. a first sealing ring; 76. a first tension spring; 81. a second through hole; 82. a second valve seat; 83. a second rubber sleeve; 84. a second valve core; 85. a second sealing ring; 86. and a second tension spring.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1, 2, 3 and 4, the rotor engine comprises a cylinder body 1 and a rotor 2 located in the cylinder body 1, the rotor 2 divides the cylinder body 1 into three combustion chambers 3, the rotor 2 comprises a body 21 and sealing parts 22 respectively located at three corners of the body 21, a plurality of sealing steel rings 4 are arranged on the inner wall of the cylinder body 1, a rotating column 5 capable of rotating freely is arranged at the sealing part 22, sealing components 6 corresponding to the sealing steel rings 4 one by one are arranged on the rotating column 5, each sealing component 6 comprises a first clamping piece 61 and a second clamping piece 62 fixedly arranged on the rotating column 5, the first clamping piece 61 and the second clamping piece 62 are respectively located at two sides of the sealing steel ring 4, a hydraulic cavity 63 corresponding to the rotating column 5 one by one is arranged on the body 21, a pressure synchronizer capable of keeping the pressure in the hydraulic cavity 63 synchronous with the pressure of the two combustion chambers 3 at the two sides of sealing higher pressure is arranged on the body 21, the sealing part 22 can be tightly pressed with the inner wall of the cylinder body 1 under the action of the pressure in the hydraulic cavity 63; the hydraulic chamber 63 is filled with hydraulic oil.

The clamping piece I61 and the clamping piece II 62 clamp the sealing steel ring 4, so that the sealing steel ring not only plays a role in guiding the rotor 2, but also increases the sealing contact area, the sealing effect is improved, the rotor 2 rotates, the rotating column 5 is in a rotating state, the sealing effect is guaranteed, meanwhile, the friction between the rotor 2 and the inner wall of the cylinder body 1 is rolling friction, the abrasion degree and the abrasion speed are greatly reduced, and the technical problem that the rotor engine is sealed and abraded and the technical problem that the rotor engine is difficult to take into consideration is solved well.

As shown in fig. 1 and 5, a notch 23 is formed at the sealing portion 22, the rotary column 5 is located in the notch 23, a sliding groove 64 is formed between the hydraulic cavity 63 and the notch 23, the sliding groove 64 communicates the hydraulic cavity 63 and the notch 23, a sliding block 65 is connected in the sliding groove 64 in a sliding manner, one end, close to the notch 23, of the sliding block 65 is provided with a plurality of lantern rings 66, the rotary column 5 is inserted into the lantern rings 66, one end, close to the hydraulic cavity 63, of the sliding block 65 is provided with a pressure receiving portion 67, the body 21 is connected with a plurality of connecting pieces 68, and the rotary column 5 is limited in the notch 23 by the connecting pieces 68; the lantern ring 66 links to each other with rotary column 5, receives the limiting displacement of connection piece 68 simultaneously, and rotary column 5 can slide along spout 64, on the one hand conducts connection piece 68, lantern ring 66 and sealing steel ring 4 with hydraulic oil on, plays heat dissipation and lubricated effect, and on the other hand, hydraulic pressure in the hydraulic pressure chamber 63 is used for receiving on the portion 67 for sealed effect obtains promoting between seal assembly 6 and the sealing steel ring 4.

As shown in fig. 2, 6 and 7, the pressure synchronization device includes a first through hole 71 which is formed in the body 21 and penetrates through the hydraulic chamber 63 and the combustion chamber 3 located on one side of the hydraulic chamber 63, an inner wall of the first through hole 71 is provided with an internal thread, the first through hole 71 is connected with a first valve seat 72 through the internal thread, a cylindrical first rubber sleeve 73 is fixedly arranged on the first valve seat 72, one end of the first rubber sleeve 73 is fixedly connected with the first valve seat 72, the other end of the first rubber sleeve 73 is fixedly provided with a first valve element 74, a first sealing ring 75 which abuts against an inner wall of the first through hole 71 is sleeved on the first valve element 74, and a first tension spring 76 which is in a tension state is connected between the first valve seat 72 and the first valve element 74; the pressure synchronization device further comprises a second through hole 81 which is formed in the body 21 and penetrates through the hydraulic cavity 63 and the combustion chamber 3 located on the other side of the hydraulic cavity 63, internal threads are formed in the inner wall of the second through hole 81, a second valve seat 82 is connected with the second through hole 81 through the internal threads, a cylindrical second rubber sleeve 83 is fixedly arranged on the second valve seat 82, one end of the second rubber sleeve 83 is fixedly connected with the second valve seat 82, a second valve element 84 is fixedly arranged at the other end of the second rubber sleeve 83, a second sealing ring 85 which abuts against the inner wall of the second through hole 81 is sleeved on the second valve element 84, and a second tension spring 86 which is in a tension state is connected between the second valve seat 82 and the second valve element 84; the first valve core 74 and the second valve core 84 are limited by the first valve seat 72 and the second valve seat 82, so that the lowest value of the pressure in the hydraulic cavity 63 is ensured, and the minimum sealing pressure between the sealing part 22 and the cylinder body 1 is ensured; the hydraulic cavity 63 is communicated with a hydraulic system of the engine and continuously provides hydraulic oil for the hydraulic cavity 63; through the limiting action of the first valve seat 72 and the second valve seat 82, the first through hole 71 and the second through hole 81 are respectively under the action of air pressure in the two combustion chambers 3, and the larger pressure plays a leading role in hydraulic oil in the hydraulic cavity 63, so that the sealing pressure between the sealing part 22 and the cylinder body 1 keeps synchronous with the pressure in the combustion chamber 3 with the larger pressure, the continuous work between the sealing part 22 and the cylinder body 1 under high strength is avoided while the sealing strength is ensured, and the effective protection effect is realized on all parts at the sealing part 22.

The hydraulic cavity 63 is strip-shaped, and the first through hole 71 and the second through hole 81 are both positioned in the middle of the hydraulic cavity 63; a collar 66 and a connecting sheet 68 are arranged between two adjacent sealing parts 22; the hydraulic pressure chamber 63 both ends are sheltered from through the apron and are sealed to the dismouting of each part is convenient for.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. A rotor engine comprises a cylinder body (1) and a rotor (2) located in the cylinder body (1), wherein the rotor (2) divides the cylinder body (1) into three combustion chambers (3), the rotor (2) comprises a body (21) and sealing parts (22) respectively located at three edges of the body (21), a plurality of sealing steel rings (4) are arranged on the inner wall of the cylinder body (1), a rotating column (5) capable of freely rotating is arranged at the sealing part (22), the rotor engine is characterized in that sealing assemblies (6) corresponding to the sealing steel rings (4) one by one are arranged on the rotating column (5), each sealing assembly (6) comprises a first clamping piece (61) and a second clamping piece (62) which are fixedly arranged on the rotating column (5), the first clamping piece (61) and the second clamping piece (62) are respectively located on two sides of the sealing steel rings (4), the body (21) is provided with hydraulic cavities (63) which correspond to the rotary columns (5) one by one, the body (21) is provided with a pressure synchronizing device which can keep the pressure in the hydraulic cavities (63) synchronous with the pressure of the higher pressure in the two combustion chambers (3) at two sealed sides, and the sealing part (22) can be pressed against the inner wall of the cylinder body (1) under the action of the pressure in the hydraulic cavities (63); hydraulic oil is filled in the hydraulic cavity (63);

the sealing part (22) is provided with a notch (23), the rotary column (5) is positioned in the notch (23), a sliding groove (64) is arranged between the hydraulic cavity (63) and the notch (23), the sliding groove (64) is communicated with the hydraulic cavity (63) and the notch (23), a sliding block (65) is connected in the sliding groove (64) in a sliding mode, one end, close to the notch (23), of the sliding block (65) is provided with a plurality of lantern rings (66), the rotary column (5) is inserted in the lantern rings (66), one end, close to the hydraulic cavity (63), of the sliding block (65) is provided with a pressure receiving part (67), the body (21) is connected with a plurality of connecting pieces (68), and the rotary column (5) is limited in the notch (23) through the connecting pieces (68);

the lantern ring (66) and the connecting sheet (68) are arranged between every two adjacent sealing parts (22).

2. A rotary engine according to claim 1 wherein the pressure synchronizing means comprises a first through hole (71) provided in the body (21) and passing through the hydraulic chamber (63) and the combustion chamber (3) on the side of the hydraulic chamber (63), the inner wall of the first through hole (71) is provided with internal threads, the internal threads of the first through hole (71) are connected with a first valve seat (72), a cylindrical rubber sleeve I (73) is fixedly arranged on the valve seat I (72), one end of the rubber sleeve I (73) is fixedly connected with the valve seat I (72), the other end of the first rubber sleeve (73) is fixedly provided with a first valve core (74), a first sealing ring (75) which is abutted against the inner wall of the first through hole (71) is sleeved on the first valve core (74), a first tension spring (76) in a tension state is connected between the first valve seat (72) and the first valve core (74); the pressure synchronizer is characterized by further comprising a second through hole (81) which is formed in the body (21) and penetrates through the hydraulic cavity (63) and the combustion chamber (3) located on the other side of the hydraulic cavity (63), the inner wall of the second through hole (81) is provided with an internal thread, the second through hole (81) is connected with a second valve seat (82) in an internal thread mode, a second cylindrical rubber sleeve (83) is fixedly arranged on the second valve seat (82), one end of the second rubber sleeve (83) is fixedly connected with the second valve seat (82), the other end of the second rubber sleeve (83) is fixedly provided with a second valve element (84), the second valve element (84) is sleeved with a second sealing ring (85) abutted against the inner wall of the second through hole (81), and a second tension spring (86) in a stretching state is connected between the second valve seat (82) and the second valve element (84).

3. A rotary engine according to claim 2 characterised in that the hydraulic chamber (63) is in the form of a bar, and the first (71) and second (81) bores are located in the centre of the hydraulic chamber (63).