CN217976377U - High compression ratio triangle rotor engine - Google Patents
High compression ratio triangle rotor engine Download PDFInfo
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- CN217976377U CN217976377U CN202222247121.9U CN202222247121U CN217976377U CN 217976377 U CN217976377 U CN 217976377U CN 202222247121 U CN202222247121 U CN 202222247121U CN 217976377 U CN217976377 U CN 217976377U
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- 238000007789 sealing Methods 0.000 claims description 40
- 238000002485 combustion reaction Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 abstract description 4
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- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000446 fuel Substances 0.000 description 3
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- 230000009471 action Effects 0.000 description 1
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- 125000004122 cyclic group Chemical group 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
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Abstract
The utility model discloses a triangle rotor engine of high compression ratio, including cylinder body (1), triangle rotor (2), phase gear (3), end cover (4) and eccentric shaft (5), the dilatation rotor groove (1-1) has been seted up on cylinder body (1) body, and dilatation rotor groove (1-1) is tangent and is linked together with the air inlet chamber (1-2) of triangle rotor engine, dilatation rotor groove (1-1) inside is provided with dilatation rotor (6), and dilatation rotor (6) and dilatation rotor groove (1-1) little clearance fit, on dilatation rotor (6) both ends rotatable being fixed in end cover (4) respectively, seted up on dilatation rotor (6) and expanded groove (7), dilatation rotor (6) and eccentric shaft (5) synchronous rotation.
Description
Technical Field
The utility model belongs to the technical field of rotary engine, concretely relates to triangle rotary engine of high compression ratio.
Background
The triangle rotor engine is a rotor engine with advanced technology, compared with the reciprocating piston engine, the triangle rotor engine has no crank connecting rod structure and gas distribution mechanism of the reciprocating piston engine, so that the triangle rotor engine has the advantages of simple structure, small volume, light weight, stable operation, low noise, large power-weight ratio and the like. However, the triangle rotor engine is one of the rotor engines, the compression ratio is small, the air-fuel ratio cannot be improved, the oil consumption is high, the exhaust emission exceeds the standard, and diesel oil cannot be used well;
the prior patent technology mainly comprises two methods for improving the compression ratio of a rotor engine, firstly, the compression ratio is adjusted by changing the structure of a combustion chamber (a rotor combustion chamber pit); secondly, grooves for forming a working cylinder and a pressure cylinder are designed on two sides of the rotor.
The compression ratio is adjusted by changing the structure of a combustion chamber (a pit of a combustion chamber of a rotor), or small grooves of a working cylinder and a pressure cylinder are designed and formed on two sides of the rotor, the methods have little improvement on the compression ratio, the compression ratio of a rotor engine is not greatly improved, the compression ratio of a triangle rotor engine is difficult to improve by 1 percent, and meanwhile, the processing technology of the rotor is complex and the manufacturing cost is high.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome above-mentioned prior art not enough, provide a triangle rotor engine of high compression ratio.
In order to solve the technical problem, the technical scheme of the utility model is that: the high-compression-ratio triangular rotor engine comprises a cylinder body, a triangular rotor, a phase gear, an end cover and an eccentric shaft, wherein a capacity expansion rotor groove is formed in the cylinder body, the capacity expansion rotor groove is tangent to and communicated with an air inlet cavity of the triangular rotor engine, a capacity expansion rotor is arranged inside the capacity expansion rotor groove, the capacity expansion rotor is in small clearance fit with the capacity expansion rotor groove, two ends of the capacity expansion rotor are respectively and rotatably fixed on the end cover, an expansion groove is formed in the capacity expansion rotor, and the capacity expansion rotor and the eccentric shaft synchronously rotate.
Preferably, the end cover comprises a front end cover and a rear end cover, the front end cover and the rear end cover are respectively fixedly connected with the front end and the rear end of the cylinder body, an inner chamber is formed by the space between the front end cover and the inner wall of the cylinder body, the triangular rotor is arranged in the inner chamber, three corners of the triangular rotor are respectively provided with a radial sealing strip, an eccentric shaft is arranged at the center of the triangular rotor, a needle bearing is arranged between an inner hole of the triangular rotor and an eccentric journal of the eccentric shaft, the phase gear is fixed in the inner hole of the triangular rotor, the phase gear on the triangular rotor is meshed with an external gear fixed on the end cover, two ends of a main journal of the eccentric shaft are supported in main bearings of the front end cover and the rear end cover, and the front end of the eccentric shaft penetrates through the front end cover to be connected with the power assembly.
Preferably, the air inlet chamber is a space formed by the inner chamber and radial sealing strips at the air inlet side of the triangular rotor engine and at two vertex angles of the triangular rotor, the capacity expansion rotor groove is arranged at the left side of the bottom of the air inlet chamber, and an included angle between a connecting line between the geometric center of the cylinder body and the center of the capacity expansion rotor groove and a longitudinal plane of the triangular rotor engine is 10 to 30 degrees.
Preferably, the capacity expansion rotor groove is a cylindrical groove, one side wall of the cylindrical groove is tangent to the air inlet cavity, and a communicating channel is formed in the tangent position.
Preferably, the expansion rotor is formed by coaxially welding a first small diameter, a first middle diameter, a large diameter, a second middle diameter and a second small diameter in sequence, the first small diameter is the same as the second small diameter, the first middle diameter is the same as the second middle diameter, the large diameter is larger than the first middle diameter or the second middle diameter, and the first middle diameter or the second middle diameter is larger than the first small diameter and the second small diameter.
Preferably, the front end cover and the rear end cover are respectively provided with a bearing at a position corresponding to the capacity expansion rotor, the first middle diameter and the second middle diameter are supported and fixed in the bearings, and the first small diameter or the second small diameter penetrates out of the front end cover or the rear end cover to synchronously rotate with the eccentric shaft through a belt or a gear.
Preferably, one side of the large diameter is provided with an axial expansion slot, and the large diameter is in small clearance fit with the expansion rotor slot; when air is fed, the expansion rotor synchronously rotates along with the eccentric shaft to enable the expansion groove to be communicated with the air inlet cavity, and the volume of the air inlet cavity is increased.
Preferably, the gap between the two end faces with the large diameter and the two end covers is 0.1 to 0.15mm, the two end faces with the large diameter are respectively provided with an end face sealing ring groove, and an end face sealing ring spring are arranged in the end face sealing ring grooves, so that the two end faces with the large diameter and the two end covers are sealed.
Preferably, the expansion groove is a V-shaped groove, the included angle of the V-shaped groove is 90 to 120 °, expansion rotor radial sealing strips are respectively arranged on two sides of the communication channel of the expansion rotor groove, and the included angle from the two expansion rotor radial sealing strips to the center of the expansion groove is larger than that of the expansion groove, so that radial sealing of the expansion groove is realized.
Compared with the prior art, the utility model has the advantages of:
(1) The utility model discloses a triangle rotor engine of high compression ratio, set up the dilatation rotor groove at the inlet chamber bottom, dilatation rotor inslot portion sets up the dilatation rotor, the dilatation rotor rotates with the eccentric shaft is synchronous, the three apex angle of triangle rotor divide into three studio with interior cavity, arbitrary one studio makes expansion groove and inlet chamber intercommunication when admitting air through the dilatation rotor groove, the inlet chamber volume has been increased, the triangle rotor continues to rotate after that, the dilatation rotor is impressed the gas in the expansion groove into the studio through centrifugal force, the expansion groove of the dilatation rotor is closed after that, make the gas of studio compress, increase inlet chamber volume when admitting air like this, the expansion groove on the dilatation rotor periodically makes three studio increase inlet chamber volume when the expansion groove on the dilatation rotor is admitting air, thus, the compression ratio has been improved, can improve 8 and 10%;
(2) The utility model discloses a triangle rotor engine with high compression ratio, which realizes the opening and closing of a V-shaped groove of a dilatation rotor by driving the dilatation rotor through an eccentric shaft so as to improve the compression ratio;
(3) The utility model discloses dilatation rotor and dilatation rotor groove booth clearance fit, dilatation rotor groove are provided with dilatation rotor radial seal strip respectively in the both sides of intercommunication passageway, and the contained angle of two dilatation rotor radial seal strips to the expansion groove apex angle is greater than the contained angle of expansion groove, guarantees like this that the gas after the compression can not radially reveal through the dilatation rotor, improves the compression ratio in coordination;
(4) The utility model discloses the big footpath both ends face of dilatation rotor is provided with the end face seal annular respectively, is provided with end face seal ring and end face seal ring spring in the end face seal annular, makes and seals between big footpath both ends face and two end covers, guarantees like this that the gas after the compression can not reveal through dilatation rotor axial, improves the compression ratio in coordination.
Drawings
Fig. 1 is a schematic structural diagram of a high compression ratio delta rotor engine of the present invention;
FIG. 2 is a schematic structural view of the rotor of the present invention;
FIG. 3 is a diagram showing a state of use of a high compression ratio gerotor engine of the present invention;
FIG. 4 is a diagram of the high compression ratio gerotor engine;
fig. 5 is a usage state diagram of the high compression ratio delta rotor engine of the present invention.
Description of reference numerals:
1. the expansion rotor comprises a cylinder body, 2, a triangular rotor, 3, a phase gear, 4, an end cover, 5, an eccentric shaft, 6, an expansion rotor, 7, an expansion groove, 8, a radial sealing strip, 9 and a radial sealing strip of the expansion rotor;
1-1, a capacity expansion rotor groove 1-2, an air inlet chamber 1-3, an inner chamber 1-4 and a communicating channel;
2-1, a vertex angle;
6-1, a first minor diameter, 6-2, a first middle diameter, 6-3, a major diameter, 6-4, a second middle diameter, 6-5 and a second minor diameter;
6-2-1, end face sealing ring groove.
Detailed Description
The following description of the embodiments of the present invention refers to the accompanying drawings:
it should be noted that the structure, proportion, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used to limit the limit conditions that the present invention can be implemented, and any modification of the structure, change of the proportion relation or adjustment of the size should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function and the achievable purpose of the present invention.
Example 1
As shown in fig. 1, the utility model discloses a triangle rotor engine of high compression ratio, including cylinder body 1, triangle rotor 2, phase gear 3, end cover 4 and eccentric shaft 5, seted up dilatation rotor groove 1-1 on the cylinder body 1 body, dilatation rotor groove 1-1 is tangent and is linked together with triangle rotor engine's air inlet cavity 1-2, dilatation rotor groove 1-1 is inside to be provided with dilatation rotor 6, and dilatation rotor 6 and dilatation rotor groove 1-1 little clearance fit, on the dilatation rotor 6 both ends were rotationally fixed in end cover 4 respectively, seted up expansion groove 7 on the dilatation rotor 6, dilatation rotor 6 and eccentric shaft 5 synchronous rotation.
Example 2
As shown in fig. 1, the end cover 4 includes a front end cover and a rear end cover, the front end cover and the rear end cover are respectively and fixedly connected with the front end and the rear end of the cylinder body 1, a space between the front end cover and the inner wall of the cylinder body 1 and a space between the rear end cover and the inner wall of the cylinder body 1 form an inner chamber 1-3, the triangular rotor 2 is arranged in the inner chamber 1-3, three corners of the triangular rotor 2 are respectively provided with a radial sealing strip 8, an eccentric shaft 5 is arranged at the center of the triangular rotor 2, a needle bearing is arranged between an inner hole of the triangular rotor 2 and an eccentric journal of the eccentric shaft 5, the phase gear 3 is fixed in the inner hole of the triangular rotor 2, the phase gear 3 on the triangular rotor 2 is engaged with an external gear fixed on the end cover 4, two ends of the main journal of the eccentric shaft 5 are supported in main bearings of the front end cover and the rear end cover, and the front end of the eccentric shaft 5 penetrates through the front end cover to connect with a power assembly.
The radial sealing strip 8 is used for sealing the triangular rotor 2 and the cylinder body 1 to realize radial sealing.
The front end cover, the rear end cover and the cylinder body 4 are positioned by positioning pins and then fixedly connected by a box closing bolt.
Example 3
As shown in figure 1, the air inlet chamber 1-2 is a space formed by an inner chamber 1-3 and radial sealing strips 8 at the air inlet side of the triangle rotor engine and at two vertex angles 2-1 of the triangle rotor 2 and the triangle rotor 2, an expansion rotor groove 1-1 is arranged at the left side of the bottom of the air inlet chamber 1-2, and an included angle between a connecting line between the geometric center of a cylinder body 1 and the center of the expansion rotor groove 1-1 and the longitudinal plane of the triangle rotor engine is 10 to 30 degrees.
As shown in figure 1, the capacity-expanding rotor groove 1-1 is a cylindrical groove, one side wall of the cylindrical groove is tangent to the air inlet chamber 1-2, and a communication channel 1-4 is formed in the tangent position.
Example 4
As shown in FIG. 2, the capacity-expanding rotor 6 is formed by coaxially welding a first minor diameter 6-1, a first middle diameter 6-2, a major diameter 6-3, a second middle diameter 6-4 and a second minor diameter 6-5 in sequence, wherein the first minor diameter 6-1 and the second minor diameter 6-5 have the same diameter, the first middle diameter 6-2 and the second middle diameter 6-4 have the same diameter, the diameter of the major diameter 6-3 is larger than the diameter of the first middle diameter 6-2 or the second middle diameter 6-4, and the diameter of the first middle diameter 6-2 or the second middle diameter 6-4 is larger than the diameter of the first minor diameter 6-1 and the second minor diameter 6-5.
As shown in fig. 2, bearings are respectively arranged at positions of the front end cover and the rear end cover corresponding to the expansion rotor 6, the first middle diameter 6-2 and the second middle diameter 6-4 are supported and fixed in the bearings, and the first small diameter 6-1 or the second small diameter 6-5 penetrates out of the front end cover or the rear end cover to synchronously rotate with the eccentric shaft 5 through a belt or a gear.
As shown in FIG. 2, the gap between the two end faces of the major diameter 6-3 and the two end covers 4 is 0.1 to 0.15mm, the two end faces of the major diameter 6-3 are respectively provided with an end face sealing ring groove 6-2-1, and an end face sealing ring spring are arranged in the end face sealing ring groove 6-2-1, so that the two end faces of the major diameter 6-3 and the two end covers 4 are sealed.
The two end faces of the large diameter 6-3 and the two end covers 4 are sealed, so that compressed gas cannot axially leak through the expansion rotor 6.
Example 5
As shown in fig. 2, the expansion slot 7 is a V-shaped slot, an included angle of the V-shaped slot is 90 to 120 °, the expansion rotor slot 1-1 is provided with expansion rotor radial sealing strips 9 on two sides of the communication channel 1-4, and an included angle from the two expansion rotor radial sealing strips 9 to a circle center of the expansion slot 7 is greater than an included angle of the expansion slot 7, so that radial sealing of the expansion slot 7 is achieved.
The expansion groove 7 is designed into a V-shaped groove, and the V-shaped groove of the expansion rotor 6, the cylinder body 1, the triangular rotor 2, the front end cover and the rear end cover 4 form an air inlet chamber 1-2 during air inlet, so that the volume of the air inlet chamber is increased.
The expansion slot 7 can also be designed as a U-shaped slot.
The expansion rotor radial sealing strips 9 can ensure that the compressed gas cannot leak radially through the expansion rotor 6.
Example 6
A method of increasing the compression ratio of a rotary internal combustion engine, comprising the steps of:
step 1: the expansion rotor 6 and the eccentric shaft 5 of the high-compression-ratio triangular rotor engine are driven by a belt or a gear to synchronously rotate, the inner chamber 1-3 is divided into three working chambers by three vertex angles 2-1 of the triangular rotor 2 and radial sealing strips 8, the space between any two vertex angles 2-1 and the inner chamber 1-3 forms one working chamber, the eccentric shaft 5 rotates for one circle, and the triangular rotor 2 rotates for 1/3 circle, so that the expansion rotor 6 rotates for one circle, and the triangular rotor 2 rotates for 1/3 circle;
step 2: pressure generated by fuel combustion acts on the triangular rotor 2, and because a force arm is formed between the center line of the eccentric journal and the center line of the main journal, the eccentric shaft 5 rotates and outputs power in a torque mode, and simultaneously drives the capacity expansion rotor 6 to rotate clockwise, and the phase of the capacity expansion rotor 6 is adjusted, so that when an expansion groove 7 of the capacity expansion rotor 6 is opened, one of the three working chambers is in an air inlet state; pressure generated by fuel combustion acts on the triangular rotor 2, and the eccentric shaft 5 rotates and outputs power in a torque mode due to the fact that a force arm is formed between the center line of the eccentric shaft 5 and the center line of the main journal;
step 2-1: when the vertex angle 2-1 at one side of the triangular rotor 2 of the working chamber does not pass through the capacity expansion rotor 6, the expansion groove 7 of the capacity expansion rotor 6 is in a closed state, and the radial sealing strip 8 at the vertex angle 2-1 of the triangular rotor 2 is ensured to rotate tangentially with the capacity expansion rotor 6;
step 2-2: when a first working cycle begins, an exhaust port of the triangular rotor engine is closed, and an air inlet is opened, the working chamber is an air inlet chamber 1-2, a radial sealing strip 8 at a vertex angle 2-1 at one side of the triangular rotor 2 passes through the capacity expansion rotor 6, an expansion groove 7 of the capacity expansion rotor 6 is in an open state, and the air inlet volume of the working chamber is expanded at the moment;
step 2-3: when the air inlet chamber 1-2 reaches an air inlet lower dead center, preparing to start a compression stroke, pressing the gas in the expansion groove 7 into the working chamber through the centrifugal force action by the expansion rotor 6, closing the expansion groove 7 of the expansion rotor 6, compressing the gas in the working chamber, and sequentially performing work doing and air exhausting strokes;
and 3, step 3: each working chamber sequentially performs air inlet, compression, work application and exhaust strokes.
Example 7
In the embodiment, radial sealing strips 8 at three vertex angles 2-1 of the rotor are represented by A, B and C, and the air inlet process is completed by changing the position of the triangular rotor 2 in the cylinder body 1 by taking an AB working chamber as an example, wherein the triangular rotor 2 rotates clockwise.
As shown in fig. 3, in the air intake process of the AB working chamber of the engine, when the radial sealing strip B8 does not pass through the capacity-expansion rotor 6, the V-shaped groove of the capacity-expansion rotor 6 is in a closed state, so that the radial sealing strip 8 on the triangular rotor 2 and the capacity-expansion rotor 6 rotate tangentially, and the AB working chamber starts to intake air.
As shown in fig. 4, when the radial sealing strip B8 on the triangular rotor 2 rotates past the capacity expansion rotor 6, the AB working chamber is the air intake chamber 1-2, the V-shaped groove of the capacity expansion rotor 6 is in an open state, and at this time, the AB working chamber takes in air and the air intake volume is expanded.
As shown in fig. 5, when the triangular rotor 2 reaches the intake bottom dead center, the compression stroke is ready to start, at this time, the expansion rotor 6 presses the gas in the V-shaped groove of the expansion rotor 6 into the cylinder 1 by the centrifugal force, the V-shaped groove of the expansion rotor 6 is closed, the AB working chamber starts to compress, and then the working and exhaust strokes are performed.
The three working chambers sequentially perform air intake, compression, power application and exhaust strokes.
The working principle of the utility model is as follows:
as shown in fig. 1 to 5, the utility model discloses a triangle rotor engine with high compression ratio, including cylinder body 1, triangle rotor 2, phase gear 3, end cover 4 and eccentric shaft 5, expansion rotor groove 1-1 has been seted up on the cylinder body 1 body, and expansion rotor groove 1-1 is tangent and is linked together with the air inlet chamber 1-2 of cylinder body 1, expansion rotor 6 is provided with in the expansion rotor groove 1-1, and expansion rotor 6 and expansion rotor groove 1-1 little clearance fit, the both ends of expansion rotor 6 are rotatable respectively fixed on end cover 4, have seted up expansion groove 7 on the expansion rotor 6, and expansion rotor 6 and eccentric shaft 5 rotate in step, drive expansion rotor 6 through the main shaft of eccentric shaft 5 and realize the switching of the V type groove of expansion rotor 6 to this improves the compression ratio, can improve 8 to 10%.
The utility model discloses a triangle rotor engine of high compression ratio, set up dilatation rotor groove bottom the inlet chamber, dilatation rotor inslot portion sets up the dilatation rotor, the dilatation rotor rotates with the eccentric shaft is synchronous, the three apex angle of triangle rotor is divided into three studio with interior cavity, arbitrary one studio is when admitting air through dilatation rotor groove, make expansion groove and inlet chamber intercommunication, the inlet chamber volume has been increased, the triangle rotor continues to rotate after that, the dilatation rotor will expand the gas in the groove through centrifugal force effect and impress in the studio, the expansion groove of expansion rotor is closed after that, the gas that makes the studio compresses, increase inlet chamber volume when admitting air like this, the cyclic three studio volume that makes of expansion groove on the expansion rotor when admitting air, just so improve the compression ratio, can improve 8 to 10%.
The utility model discloses a triangle rotor engine of high compression ratio realizes the switching in dilatation rotor V type groove through eccentric shaft drive dilatation rotor to this improves the compression ratio, the utility model discloses processing technology is simple, low in manufacturing cost.
The utility model discloses dilatation rotor and dilatation rotor groove booth clearance fit, dilatation rotor groove are provided with dilatation rotor radial sealing strip respectively in the both sides of intercommunication passageway, and two dilatation rotor radial sealing strips are greater than the contained angle that expands the groove to the contained angle that expands the groove apex angle, guarantee like this that the gas after the compression can radially reveal through the dilatation rotor, improve in coordination and compress the ratio.
The utility model discloses the big footpath both ends face of dilatation rotor is provided with the end face seal annular respectively, is provided with end face seal ring and end face seal ring spring in the end face seal annular, makes and seals between big footpath both ends face and two end covers, guarantees like this that the gas after the compression can not reveal through dilatation rotor axial, improves the compression ratio in coordination.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Many other changes and modifications can be made without departing from the spirit and scope of the invention. It is to be understood that the invention is not to be limited to the specific embodiments, and that the scope of the invention is defined by the appended claims.
Claims (9)
1. The utility model provides a triangle rotor engine of high compression ratio, includes cylinder body (1), triangle rotor (2), phase gear (3), end cover (4) and eccentric shaft (5), its characterized in that: the expansion rotor comprises a cylinder body (1), and is characterized in that an expansion rotor groove (1-1) is formed in the cylinder body (1), the expansion rotor groove (1-1) is tangent to and communicated with an air inlet chamber (1-2) of a triangle rotor engine, an expansion rotor (6) is arranged inside the expansion rotor groove (1-1), the expansion rotor (6) and the expansion rotor groove (1-1) are in small clearance fit, two ends of the expansion rotor (6) are rotatably fixed on an end cover (4) respectively, an expansion groove (7) is formed in the expansion rotor (6), and the expansion rotor (6) and an eccentric shaft (5) rotate synchronously.
2. A high compression ratio rotary internal combustion engine as claimed in claim 1, wherein: the end cover (4) comprises a front end cover and a rear end cover, the front end cover and the rear end cover are respectively fixedly connected with the front end and the rear end of the cylinder body (1), an inner chamber (1-3) is formed by the space between the front end cover and the inner wall of the cylinder body (1) and the space between the rear end cover and the inner wall of the cylinder body (1), the triangular rotor (2) is arranged in the inner chamber (1-3), radial sealing strips (8) are respectively arranged at three vertex angles (2-1) of the triangular rotor (2), an eccentric shaft (5) is arranged at the center of the triangular rotor (2), a needle bearing is arranged between an inner hole of the triangular rotor (2) and an eccentric shaft neck of the eccentric shaft (5), the phase gear (3) is fixed in the inner hole of the triangular rotor (2), the phase gear (3) on the triangular rotor (2) is meshed with an outer gear fixed on the end cover (4), two ends of the main shaft neck of the eccentric shaft (5) are supported in main bearings of the front end cover and the rear end cover, and the front end cover penetrates through the front end cover to connect a power assembly.
3. A high compression ratio rotary internal combustion engine as claimed in claim 2, wherein: the air inlet cavity (1-2) is a space formed by an inner cavity (1-3) and a radial sealing strip (8) of an air inlet side of the triangle rotor engine, the triangle rotor (2) and two vertex angles (2-1) of the triangle rotor (2), the expansion rotor groove (1-1) is arranged on the left side of the bottom of the air inlet cavity (1-2), and an included angle between a connecting line between the geometric center of the cylinder body (1) and the center of the expansion rotor groove (1-1) and a longitudinal plane of the triangle rotor engine is 10 to 30 degrees.
4. A high compression ratio gerotor engine as set forth in claim 3, in which: the capacity expansion rotor groove (1-1) is a cylindrical groove, one side wall of the cylindrical groove is tangent to the air inlet cavity (1-2), and a communication channel (1-4) is formed in the tangent position.
5. A high compression ratio rotary internal combustion engine as claimed in claim 3, wherein: the expansion rotor (6) is formed by sequentially and coaxially welding a first small diameter (6-1), a first middle diameter (6-2), a large diameter (6-3), a second middle diameter (6-4) and a second small diameter (6-5), the first small diameter (6-1) and the second small diameter (6-5) are the same in diameter, the first middle diameter (6-2) and the second middle diameter (6-4) are the same in diameter, the diameter of the large diameter (6-3) is larger than that of the first middle diameter (6-2) or the second middle diameter (6-4), and the diameter of the first middle diameter (6-2) or the second middle diameter (6-4) is larger than that of the first small diameter (6-1) and the second small diameter (6-5).
6. The high compression ratio delta rotor engine as set forth in claim 5, wherein: the front end cover and the rear end cover are respectively provided with a bearing corresponding to the capacity expansion rotor (6), the first middle diameter (6-2) and the second middle diameter (6-4) are supported and fixed in the bearings, and the first small diameter (6-1) or the second small diameter (6-5) penetrates out of the front end cover or the rear end cover to synchronously rotate with the eccentric shaft (5) through a belt or a gear.
7. The high compression ratio delta rotor engine as set forth in claim 5, wherein: one side of the large diameter (6-3) is provided with an axial expansion groove (7), and the large diameter (6-3) is in small clearance fit with the expansion rotor groove (1-1); when air is fed, the expansion rotor (6) synchronously rotates along with the eccentric shaft (5) to enable the expansion groove (7) to be communicated with the air inlet cavity (1-2), and the volume of the air inlet cavity (1-2) is increased.
8. The high compression ratio delta rotor engine as set forth in claim 5, wherein: the clearance between the two end faces of the large diameter (6-3) and the two end covers (4) is 0.1 to 0.15mm, the two end faces of the large diameter (6-3) are respectively provided with an end face sealing ring groove (6-2-1), and an end face sealing ring spring are arranged in the end face sealing ring groove (6-2-1), so that the two end faces of the large diameter (6-3) and the two end covers (4) are sealed.
9. A high compression ratio gerotor engine as set forth in claim 4, in which: the expansion groove (7) is a V-shaped groove, the included angle of the V-shaped groove is 90 to 120 degrees, expansion rotor radial sealing strips (9) are respectively arranged on the two sides of the communication channel (1-4) of the expansion rotor groove (1-1), and the included angle from the two expansion rotor radial sealing strips (9) to the circle center of the expansion groove (7) is larger than the included angle of the expansion groove (7), so that the radial sealing of the expansion groove (7) is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222247121.9U CN217976377U (en) | 2022-08-25 | 2022-08-25 | High compression ratio triangle rotor engine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222247121.9U CN217976377U (en) | 2022-08-25 | 2022-08-25 | High compression ratio triangle rotor engine |
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| CN217976377U true CN217976377U (en) | 2022-12-06 |
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| CN202222247121.9U Active CN217976377U (en) | 2022-08-25 | 2022-08-25 | High compression ratio triangle rotor engine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263537A (en) * | 2022-08-25 | 2022-11-01 | 西安空天能源动力智能制造研究院有限公司 | A kind of triangular rotary engine with high compression ratio and method for improving compression ratio |
-
2022
- 2022-08-25 CN CN202222247121.9U patent/CN217976377U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115263537A (en) * | 2022-08-25 | 2022-11-01 | 西安空天能源动力智能制造研究院有限公司 | A kind of triangular rotary engine with high compression ratio and method for improving compression ratio |
| CN115263537B (en) * | 2022-08-25 | 2025-02-18 | 西安空天能源动力智能制造研究院有限公司 | A triangular rotor engine with high compression ratio and method for increasing compression ratio |
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