CN116122957A - Novel rotor engine structure and working method thereof - Google Patents

Abstract

The invention discloses a novel rotor engine structure and a working method thereof, the novel rotor engine structure comprises a cylinder body assembly, a front end cover assembly, a rear end cover assembly, a main shaft assembly and a rotor assembly, wherein the cylinder body assembly, the front end cover assembly and the rear end cover assembly are of triangle-like structures, three semicircular cavities are formed in the center of the cylinder body assembly, radial sealing pieces are respectively arranged at the joint positions of three semicircles of the three semicircular cavities, a front central hole is formed in the center of the front end cover assembly, a rear central hole is formed in the center of the rear end cover assembly, the cylinder body assembly, the front end cover assembly and the rear end cover assembly are fixedly connected to form an engine body, the rotor assembly comprises an 8-shaped rotor, end face sealing pieces are respectively arranged on two end faces of the 8-shaped rotor, the 8-shaped rotor is arranged in the three semicircular cavities, the main shaft assembly sequentially penetrates through the front central hole of the front end cover assembly, the 8-shaped rotor center of the rear end cover assembly and the rear central hole of the rear end cover assembly, and two ends of the main shaft assembly are limited.

Description

Novel rotor engine structure and working method thereof

Technical Field

The invention belongs to the technical field of engines, and particularly relates to a novel rotor engine structure and a working method thereof.

Background

A rotary engine is an engine that uses rotary motion to generate power, originally developed by Wankel (Wankel). The wankel engine developed by wankel includes: a housing having an inner surface formed by an epitrochoid; and a triangular rotor rotating in the housing. The inner space of the housing is divided into three spaces by the rotor, and the volumes of the spaces are changed according to the rotation of the rotor, thereby continuously completing four strokes of intake, compression, work, and exhaust. The wankel engine is configured such that each stroke is performed three times per one revolution of the rotor, and the eccentric shaft is rotated three times. Since the wankel engine was developed, various studies have been made to optimize the design of the wankel engine, and development of improved rotary engines has continued.

The rotary engine is easy to be miniaturized due to its simple structure, and is a high output power engine capable of generating high output power in high-speed operation. Thanks to these features, the rotary engine has the advantage of being applicable to various devices such as heat pump systems, automobiles, bicycles, airplanes, water motorcycles, chain saws, remote control airplanes, and the like. In addition, the rotary engine has advantages of low vibration and noise and low NOx emission due to its uniform rotation force.

However, the existing rotor engine has low heat efficiency caused by low compression ratio, and meanwhile, the existing rotor engine has high local heat load of the cylinder body due to fixed combustion surface and exhaust position of the cylinder body, and radial sealing strips of the rotor are difficult to forcedly lubricate and grind, so that the dynamic property, the economical efficiency and the reliability are not high when the rotor engine is applied to an aviation system, and therefore, a novel rotor engine needs to be developed.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provides a novel rotor engine structure and a working method thereof.

In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a novel rotor engine structure, includes cylinder body assembly, front end housing assembly, rear end housing assembly, main shaft assembly and rotor assembly, cylinder body assembly, front end housing assembly and rear end housing assembly are the class triangle-shaped structure, and three semicircle cavity has been seted up at cylinder body assembly center, and three semicircle junction of three semicircle cavity is provided with radial seal respectively, front end housing assembly center has seted up front center hole, rear end housing assembly center has seted up back center hole, front center hole, three semicircle cavity and the coaxial setting of rear center hole, and cylinder body assembly, front end housing assembly and rear end housing assembly fixed connection form the engine body, the rotor assembly includes "8" style of calligraphy rotor, and "8" style of calligraphy rotor both ends face is provided with the face seal respectively, and "8" style of calligraphy rotor sets up in three semicircle cavity, and the main shaft assembly passes the front center hole of front end housing assembly, the back center hole of "8" style of calligraphy rotor center in the cylinder body assembly in proper order and the rear end housing assembly to main shaft assembly both ends are spacing.

Preferably, the cylinder body assembly comprises a lubricating oil duct, an oil sprayer mounting hole, a combustion chamber, a cooling water cavity, a positioning pin hole, a triangular cylinder body, a radial sealing member mounting groove and a bolt hole, wherein three semicircular cavities are formed in the center of the triangular cylinder body, the combustion chamber is respectively formed in the three tops of the three semicircular cavities, the oil sprayer mounting hole is formed in one side of the combustion chamber, which is close to the front end cover assembly, of the three semicircular cavities, the radial sealing member mounting groove is formed in the joint of the three semicircular cavities, the radial sealing member is mounted in the radial sealing member mounting groove, the lubricating oil duct is formed in the three outer walls of the triangular cylinder body and communicated with the radial sealing member mounting groove, the cooling water cavity is uniformly distributed on the triangular cylinder body on the periphery of the three semicircular cavities, and the positioning pin hole and the bolt hole are uniformly distributed on the edge of the triangular cylinder body.

Preferably, the front end cover assembly comprises an exhaust hole, a front lubricating oil outer hole, an oil sprayer mounting seat, a front cooling water cavity, a front lubricating oil inner hole, a gear bolt hole, a front positioning pin hole, a front bolt hole, a front central hole and a front end cover body, wherein the central hole is formed in the center of the front end cover body, the gear bolt hole is circumferentially distributed on the inner side of the central hole, three exhaust holes are uniformly distributed on the front end cover body around the front central hole, when the 8-shaped rotor rotates to the phase position of the exhaust hole, the air outlet of the 8-shaped rotor is communicated with the exhaust hole, three oil sprayer mounting seats are uniformly distributed on the edge of the front end cover body, the three oil sprayer mounting seats correspond to the three oil sprayer mounting holes, the front lubricating oil outer hole is distributed on the outer end surface of the front end cover body, the front lubricating oil inner hole is distributed on the inner end surface of the front end cover body, the front lubricating oil outer hole is communicated with the front lubricating oil inner hole, the position of the front lubricating oil inner hole corresponds to the position of an end surface sealing piece, the front cooling water cavity is also distributed on the inner end surface of the front end cover body, the front cooling water cavity corresponds to the position of the cooling water cavity, the front positioning pin hole and the front bolt hole are uniformly distributed on the edge of the front end cover body.

Preferably, the rear end cover assembly comprises an air inlet hole, a rear cooling water cavity, a rear lubricating oil inner hole, a retainer ring groove, a bearing hole, a rear lubricating oil outer hole, a rear bolt hole, a rear positioning pin hole, a rear central hole and a rear end cover body, wherein the rear central hole is formed in the center of the rear end cover body, the retainer ring groove and the bearing hole are formed in the inner ring of the rear central hole, three air inlet holes are uniformly distributed on the rear end cover body around the rear central hole, and when the 8-shaped rotor rotates to the phase position of the air inlet hole, the air inlet of the 8-shaped rotor is communicated with the air inlet hole; the inner end face of the rear end cover body is provided with a rear cooling water cavity, the rear cooling water cavity corresponds to the cooling water cavity in position, the inner end face of the rear end cover body is also provided with a rear lubricating oil inner hole, the outer end face of the rear end cover body is uniformly distributed with a rear lubricating oil outer hole, the rear lubricating oil outer hole is communicated with the rear lubricating oil inner hole, the edge of the rear end cover body is uniformly distributed with a rear bolt hole and a rear positioning pin hole, the rear bolt hole corresponds to the bolt hole in position, and the rear positioning pin hole corresponds to the positioning pin hole in position.

Preferably, the main shaft assembly comprises a front counterweight, a compression nut, a first flat key, a front half shaft, a rear half shaft, a flywheel, a second flat key and a nut, wherein the front counterweight is sleeved on the front side of the front half shaft, the compression nut is sleeved on the front half shaft on the front side of the front counterweight to compress the front counterweight, the rear side of the front half shaft is connected with the front side of the rear half shaft through the first flat key, the flywheel is sleeved on the rear side of the rear half shaft, the flywheel is connected with the rear half shaft through the second flat key, and the rear half shaft on the rear side of the flywheel is provided with the nut for locking; the axial direction of the front half shaft and the rear half shaft is also fixed through shaft shoulder screws, and an axial oil duct and a radial oil duct are formed in the rear half shaft and are communicated.

Preferably, the spark plug comprises a retainer ring, a ball bearing, a spark plug, an oil sprayer, an internal gear, an exhaust manifold, a needle bearing, a fixing bolt, a locating pin, an oil seal, an external gear, a first air inlet main pipe and a second air inlet main pipe, wherein the retainer ring is sleeved in the middle of a rear half shaft and is arranged in a retainer ring groove, the ball bearing is sleeved on the rear half shaft on the right side of the retainer ring and is arranged in a bearing hole, the oil seal is sleeved on the rear half shaft on the right side of the ball bearing, the number of the spark plugs is three, the three spark plugs are respectively arranged on three side surfaces of the triangular cylinder body, the head of the spark plug penetrates into the combustion chamber, the oil sprayer is arranged at the oil sprayer mounting seat, the head of the oil sprayer penetrates into the combustion chamber through the oil sprayer mounting hole, the inner gear is fixed on the inner end surface of the front end cover body through the matching of the bolt and the gear bolt hole, the outer gear is sheathed on the front side of the rear half shaft, the outer gear is fixed on the 8-shaped rotor through the spring pin, and the inner gear is meshed with the outer gear; the three exhaust manifolds are respectively arranged at the exhaust holes, the needle bearing is sleeved between the 8-shaped rotor and the rear half shaft, the radial oil duct corresponds to the needle bearing in position, the fixing bolts sequentially penetrate through the front bolt holes, the bolt holes and the rear bolt holes to connect the front end cover assembly, the cylinder body assembly and the rear end cover assembly through bolts, the locating pins sequentially penetrate through the front locating pin holes, the locating pin holes and the rear locating pin holes to locate the front end cover assembly 2, the cylinder body assembly and the rear end cover assembly, the first air inlet manifold is connected with the second air inlet manifold, and the other end of the second air inlet manifold is connected with the air inlet holes.

Preferably, the radial sealing elements are three groups, the radial sealing elements comprise radial springs and radial sealing strips, the radial springs and the radial sealing strips are arranged in radial sealing element installation grooves, the radial sealing strips limit the radial springs in the radial sealing element installation grooves, the end face sealing elements are two groups, the end face sealing elements comprise end face springs and end face sealing strips, the end face sealing element installation grooves are respectively arranged on two end faces of the '8' -shaped rotor, the end face springs and the end face sealing strips are arranged in the end face sealing element installation grooves, and the end face sealing strips limit the end face springs in the end face sealing element installation grooves.

Preferably, the triangle cylinder body, the front end cover body and the rear end cover body are of a triangle-like structure, the triangle-like structure is formed by connecting three long sides and three short sides at intervals, a front positioning pin hole or a rear positioning pin hole is formed in the center of each of the three long sides, a front bolt hole or a rear bolt hole is formed in the joint of the two adjacent sides, a lubricating oil duct is respectively formed in each of the three long sides of the triangle cylinder body, and a spark plug mounting hole is respectively formed in each of the three short sides of the triangle cylinder body and used for mounting a spark plug.

Preferably, the three semicircular cavities are formed by connecting three semicircular cavities, combustion chambers are respectively formed at the tops of the three semicircular cavities, and radial sealing pieces are respectively arranged at the connecting positions of the three semicircular cavities.

Preferably, a working method of the novel rotary engine structure comprises the following steps:

step 1: the novel rotor engine structure is assembled, combustion chambers 103 are respectively arranged at the three tops of three semicircular cavities 108, each combustion chamber 103 is respectively provided with a spark plug 803 and an oil sprayer 804, the spark plugs 803 of the three combustion chambers 103 are used for ignition at intervals, the oil sprayer 804 is used for spraying oil while the ignition is performed, the three semicircular cavities 108 are divided into three working chambers by an 8-shaped rotor 501, and when the combustion chamber 103 in one working chamber is used for ignition, one of the other two working chambers is used for air intake and the other two working chambers are used for air exhaust;

step 2: when the first air inlet header pipe 812 is used for air inlet, air enters the air inlet of the 8-shaped rotor 501 through the air inlet holes 301, the first working chamber space is compressed at the moment along with the slow anticlockwise rotation of the 8-shaped rotor 501, when the first working chamber space is compressed to the minimum, the first combustion chamber 103 which is propped against one end of the 8-shaped rotor 501 is ignited, the air rapidly expands, the 8-shaped rotor 501 is pushed to rotate rapidly, the air outlet of the 8-shaped rotor 501 is communicated with the air outlet 201, and the air is discharged;

Step 3: then the air inlet of the rotating 8-shaped rotor 501 is communicated with the air inlet 301 to perform air intake, the 8-shaped rotor 501 compresses the space of the second working chamber, when the space of the second working chamber is compressed to the minimum, the second combustion chamber 103 which is propped against one end of the 8-shaped rotor 501 is ignited, the air rapidly expands to push the 8-shaped rotor 501 to rapidly rotate, so that the air outlet of the 8-shaped rotor 501 is communicated with the air outlet 201, and the air is discharged;

step 4: then the air inlet of the rotating 8-shaped rotor 501 is communicated with the air inlet 301 to perform air intake, the 8-shaped rotor 501 compresses the space of the third working chamber, when the space of the third working chamber is compressed to the minimum, the third combustion chamber 103 which is propped against one end of the 8-shaped rotor 501 is ignited, the air is rapidly expanded, the 8-shaped rotor 501 is pushed to rapidly rotate, so that the air outlet of the 8-shaped rotor 501 is communicated with the air outlet 201, and the air is discharged;

step 5: along with the rapid rotation of the 8-shaped rotor 501, the main shaft assembly 4 is driven to rotate rapidly, and as the internal gear 805 is fixed on the inner end surface of the front end cover body 210 through the cooperation of the bolts and the gear bolt holes 206, the external gear 811 is sleeved on the front side of the rear half shaft 406, the external gear 811 is fixed on the 8-shaped rotor 501 through a spring pin, and the internal gear 805 is meshed with the external gear 811, the 8-shaped rotor 501 rotates counterclockwise for 1 circle, and the main shaft assembly 4 rotates clockwise for 2 circles.

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

(1) The invention discloses a novel rotor engine structure, which is similar to a wankel rotor engine with internal and external exchange, wherein a rotor is in an oval 8 shape, a cylinder body is in a triangle-like shape, the matching form increases the volume difference, the compression ratio can be greatly improved, and the heat efficiency is greatly improved;

(2) According to the rotor engine, the three tops of the three semicircular cavities are respectively provided with the combustion chambers, each combustion chamber is respectively provided with the spark plugs and the fuel injectors, the spark plugs of the three combustion chambers are used for ignition at intervals, the fuel injectors are used for ignition at intervals at the same time of ignition, the three combustion chambers are used for ignition at intervals, the local temperature of the cylinder body is prevented from being too high, the thermal stress state of the cylinder body is improved, the phenomenon of poor sealing of the cylinder body caused by the overlarge thermal deformation of the part of the cylinder body is avoided, the phenomenon of power reduction is avoided, and the service fatigue life of the engine is prolonged;

(3) According to the invention, the internal gear is fixed on the inner end surface of the front end cover body through the matching of the bolts and the gear bolt holes, the external gear is fixed on the 8-shaped rotor through the spring pin, the internal gear is meshed with the external gear, and the tooth ratio is 3:2, therefore, the 8-shaped rotor rotates anticlockwise for 1 circle, and the main shaft assembly rotates clockwise for 2 circles, so that the low-speed torque characteristic of the engine is improved;

(4) The rotor engine comprises an elliptic 8-shaped rotor and a similar triangular cylinder body, fewer engine moving parts, particularly the lubrication state of radial sealing elements is greatly improved, the sealing elements at the top of the traditional triangular rotor are replaced by radial sealing elements at the positions of three semicircular cavities, the moving elements are converted into fixed elements, and the radial sealing elements are independently lubricated, so that the rotor engine has better dynamic property, economy and reliability when in operation, and has great potential in the application aspect of an aeronautical system;

(5) When the rotor engine is operated, the mixed gas is discharged through the 8-shaped rotor after acting through the 8-shaped rotor air inlet compression cylinder, so that the engine is compact in whole, higher in power density and better in dynamic property, economy and thermal efficiency.

Drawings

FIG. 1 is a schematic perspective view of a novel rotary engine structure according to the present invention;

FIG. 2 is a schematic cross-sectional view of a novel rotary engine structure of the present invention;

FIG. 3 is a schematic diagram of a cylinder assembly of a novel rotary engine structure according to the present invention;

FIG. 4 is a schematic view of a front end cover assembly of a novel rotary engine structure according to the present invention;

FIG. 5 is a schematic view of a front end cover assembly of a novel rotary engine structure according to the present invention;

FIG. 6 is a schematic view of a rear end cover assembly of a novel rotary engine structure according to the present invention;

FIG. 7 is a schematic view of a rear end cover assembly of a novel rotary engine structure according to the present invention;

fig. 8 is a schematic diagram of a spindle assembly structure of a novel rotary engine structure according to the present invention.

Reference numerals illustrate:

1. the device comprises a cylinder body assembly, a front end cover assembly, a rear end cover assembly, a main shaft assembly, a rotor assembly, a radial sealing element, an end face sealing element and other accessories, wherein the cylinder body assembly, the front end cover assembly, the rear end cover assembly, the main shaft assembly, the rotor assembly, the radial sealing element, the end face sealing element and the end face sealing element are respectively arranged;

101. the device comprises a lubricating oil duct, 102, an oil sprayer mounting hole, 103, a combustion chamber, 104, a cooling water cavity, 105, a positioning pin hole, 106, a triangular cylinder body, 107, a radial sealing element mounting groove, 108, a three-semicircle cavity, 109 and a bolt hole;

201. the device comprises an exhaust hole 202, a front lubricating oil outer hole 203, an oil sprayer mounting seat 204, a front cooling water cavity 205, a front lubricating oil inner hole 206, a gear bolt hole 207, a front positioning pin hole 208, a front bolt hole 209, a front center hole 210 and a front end cover body;

301. an air inlet hole 302, a rear cooling water cavity 303, a rear lubricating oil inner hole 304, a retainer ring groove 305, a bearing hole 306, a rear lubricating oil outer hole 307, a rear bolt hole 308, a rear positioning pin hole 309, a rear center hole 310 and a rear end cover body;

401. Front counterweight, 402, compression nut, 403, shoulder screw, 404, first flat key, 405, front half shaft, 406, rear half shaft, 407, axial oil passage, 408, flywheel, 409, second flat key, 410, nut, 411, radial oil passage;

501. an 8-shaped rotor 502 and an end face sealing piece mounting groove;

601. radial springs, 602, radial seals;

701. end face springs, 702, end face seal strips;

801. retainer ring 802, ball bearing 803, spark plug 804, injector 805, internal gear 806, exhaust manifold 807, needle bearing 808, fixing bolt 809, locating pin 810, oil seal 811, external gear 812, first intake manifold 813, second intake manifold.

Detailed Description

The following describes specific embodiments of the present invention with reference to examples:

it should be noted that the structures, proportions, sizes and the like illustrated in the present specification are used for being understood and read by those skilled in the art in combination with the disclosure of the present invention, and are not intended to limit the applicable limitations of the present invention, and any structural modifications, proportional changes or size adjustments should still fall within the scope of the disclosure of the present invention without affecting the efficacy and achievement of the present invention.

Example 1

As shown in fig. 1 and 2, a novel rotor engine structure comprises a cylinder assembly 1, a front end cover assembly 2, a rear end cover assembly 3, a main shaft assembly 4 and a rotor assembly 5, wherein the cylinder assembly 1, the front end cover assembly 2 and the rear end cover assembly 3 are of triangle-like structures, three semicircular cavities 108 are formed in the center of the cylinder assembly 1, radial sealing pieces 6 are respectively arranged at the joint of three semicircles of the three semicircular cavities 108, a front center hole 209 is formed in the center of the front end cover assembly 2, a rear center hole 309 is formed in the center of the rear end cover assembly 3, the front center hole 209, the three semicircular cavities 108 and the rear center hole 309 are coaxially arranged, the cylinder assembly 1, the front end cover assembly 2 and the rear end cover assembly 3 are fixedly connected to form an engine body, the rotor assembly 5 comprises an 8-shaped rotor 501, end face sealing pieces 7 are respectively arranged at two end faces of the 8-shaped rotor 501, the 8-shaped rotor 501 is arranged in the three semicircular cavities 108, the main shaft assembly 4 sequentially penetrates through the front center hole 209 of the front end cover assembly 2, the 8-shaped rotor 501 in the cylinder assembly 1 and the rear end cover assembly 3 and the rear end cover assembly 309 are positioned at the front end of the main shaft assembly 4.

Example 2

As shown in fig. 3, the cylinder assembly 1 includes a lubrication oil duct 101, an oil injector mounting hole 102, a combustion chamber 103, a cooling water cavity 104, a positioning pin hole 105, a triangular cylinder body 106, a radial seal mounting groove 107 and a bolt hole 109, a three-semicircle cavity 108 is formed in the center of the triangular cylinder body 106, the combustion chamber 103 is formed at three tops of the three-semicircle cavity 108, the oil injector mounting hole 102 is formed on one side of the combustion chamber 103, which is close to the front end cover assembly 2, the radial seal mounting groove 107 is formed at the junction of three semicircles of the three-semicircle cavity 108, the radial seal 6 is mounted in the radial seal mounting groove 107, the lubrication oil duct 101 is communicated with the radial seal mounting groove 107, the cooling water cavity 104 is uniformly distributed on the triangular cylinder body 106 around the three-semicircle cavity 108, and the positioning pin hole 105 and the bolt hole 109 are uniformly distributed at the edge of the triangular cylinder body 106.

The two end surfaces of the triangular cylinder body 106 are provided with cooling water cavities 104 which are regularly distributed and used for cooling the surface temperature of the cylinder body when the engine runs and reducing the heat load of the combustion chamber part of the cylinder body; the radial seal installation groove 107 is formed at the joint of the three semicircle cavities 108 and the three semicircle for installing the radial seal 6, so that radial leakage of the combustion chamber is reduced or prevented, the triangular cylinder body 106 is provided with the lubricating oil duct 101 for supplying a proper amount of lubricating oil to the radial seal installation groove 107, the radial seal 6 is lubricated and cooled, abrasion of the radial seal 6 is reduced, and the positioning pin hole 105 is used for ensuring the assembly positions of the cylinder body assembly 1, the front end cover assembly 2 and the rear end cover assembly 3.

Example 3

As shown in fig. 4 and 5, the front end cover assembly 2 includes a vent hole 201, a front lubricant outer hole 202, a fuel injector mounting seat 203, a front cooling water cavity 204, a front lubricant inner hole 205, a gear bolt hole 206, a front positioning pin hole 207, a front bolt hole 208, a front center hole 209 and a front end cover body 210, the center of the front end cover body 210 is provided with the center hole 209, the inside circumference of the center hole 209 is provided with the gear bolt hole 206, three vent holes 201 are uniformly distributed on the front end cover body 210 around the front center hole 209, when the 8-shaped rotor 501 rotates to the phase of the vent hole 201, the air outlet of the 8-shaped rotor 501 is communicated with the vent hole 201, three fuel injector mounting seats 203 are uniformly distributed at the edge of the front end cover body 210, the three fuel injector mounting seats 203 correspond to the positions of the three fuel injector mounting holes 102, the outer end surface of the front end cover body 210 is provided with the front lubricant outer hole 202, the inner end surface of the front end cover body 210 is provided with the front lubricant inner hole 205, the front lubricant outer hole 202 is communicated with the front lubricant bolt hole 205 corresponds to the position of the end seal 7, the inner end cover body 210 inner end surface of the front end cover body 210 is also provided with the front cooling pin hole 204 corresponds to the position of the front pin hole 204, the front end cover body is uniformly distributed with the front cooling pin hole 208 corresponds to the position of the front cooling pin hole 207, and the positioning pin hole 105 corresponds to the position of the front end cover body is located on the front end cover body, and the front cooling pin hole 208 corresponds to the position of the front cooling pin hole 105.

The 3 exhaust holes 201 are uniformly distributed on the front end cover body 210, an exhaust channel is formed with the exhaust manifold 806 and the 8-shaped rotor 501, the three oil sprayer mounting seats 203 are distributed on the outer side surface of the front end cover body 210, the front center hole 209 is used for mounting a main shaft bearing, the front lubricating oil outer hole 202 is communicated with the front lubricating oil inner hole 205 and used for lubricating and cooling the end face sealing piece 7, the front cooling water cavity 204 is communicated with the cooling water cavity 104 and the rear cooling water cavity 302 to form a cooling water channel, and the three gear bolt holes 206 are distributed in the body 2 and used for mounting the inner gear 805.

Example 4

As shown in fig. 6 and 7, the rear end cover assembly 3 includes an air intake 301, a rear cooling water cavity 302, a rear lubricant inner hole 303, a retainer groove 304, a bearing hole 305, a rear lubricant outer hole 306, a rear bolt hole 307, a rear positioning pin hole 308, a rear center hole 309 and a rear end cover body 310, the center of the rear end cover body 310 is provided with the rear center hole 309, the inner ring of the rear center hole 309 is provided with the retainer groove 304 and the bearing hole 305, three air intake 301 are uniformly distributed on the rear end cover body 310 around the rear center hole 309, and when the "8" -shaped rotor 501 rotates to the phase of the air intake 301, the air intake of the "8" -shaped rotor 501 is communicated with the air intake 301; the inner end face of the rear end cover body 310 is provided with a rear cooling water cavity 302, the rear cooling water cavity 302 corresponds to the cooling water cavity 104 in position, the inner end face of the rear end cover body 310 is also provided with a rear lubricating oil inner hole 303, the outer end face of the rear end cover body 310 is uniformly provided with a rear lubricating oil outer hole 306, the rear lubricating oil outer hole 306 is communicated with the rear lubricating oil inner hole 303, the edge of the rear end cover body 310 is uniformly provided with a rear bolt hole 307 and a rear positioning pin hole 308, the rear bolt hole 307 corresponds to the bolt hole 109 in position, and the rear positioning pin hole 308 corresponds to the positioning pin hole 105 in position.

The front cooling water chamber 204, the cooling water chamber 104, and the rear cooling water chamber 302 communicate to reduce the thermal load of the triangular cylinder body 106.

The outer side of the rear end cover body 310 is provided with three air inlets 301, which form an air inlet channel with the 8-shaped rotor 501, and the front end cover body 210 and the rear end cover body 310 are provided with a lubrication oil channel for lubrication of the main shaft assembly 4 and a cooling water cavity for backwater.

The rear end cover body 310 is provided with a bearing hole 305 and a retainer ring groove 304 for bearing installation and limiting, and the rear end cover body 310 is provided with a rear lubricating oil inner hole 303 and a rear lubricating oil outer hole 306 which are communicated and used for oil supply lubrication of the end face sealing element 7.

Example 5

As shown in fig. 8, the spindle assembly 4 includes a front weight 401, a compression nut 402, a first flat key 404, a front half shaft 405, a rear half shaft 406, a flywheel 408, a second flat key 409 and a nut 410, wherein the front side of the front half shaft 405 is sleeved with the front weight 401, the compression nut 402 is sleeved on the front half shaft 405 at the front side of the front weight 401 to compress the front weight 401, the rear side of the front half shaft 405 is connected with the front side of the rear half shaft 406 through the first flat key 404, the rear side of the rear half shaft 406 is sleeved with the flywheel 408, the flywheel 408 is connected with the rear half shaft 406 through the second flat key 409, and the rear half shaft 406 at the rear side of the flywheel 408 is provided with the nut 410 for locking; the axial directions of the front half shaft 405 and the rear half shaft 406 are also fixed through shaft shoulder screws 403, and an axial oil duct 407 and a radial oil duct 411 are formed in the rear half shaft 406, and the axial oil duct 407 is communicated with the radial oil duct 411.

Screw holes and key grooves are formed near the axis of the front half shaft 405, the front half shaft 405 is connected with and positioned on the rear half shaft 406 through shoulder screws 403 and a first flat key 404, a check ring groove is formed in the front half shaft 405 to limit the axial position of the front main bearing, and an axial oil duct 407 and a radial oil duct 411 are formed in the rear half shaft 406 to supply lubricating oil to the needle bearing 807.

The main shaft assembly 4 is two-section type, and the main shaft is divided into two ends at free end bearing department in order to make things convenient for the dismouting, and two half axial settings parallel key is used for retraining axial free end, sets up shoulder screw 403 in order to restrict axial free end at the axial, prevents to throw off when the main shaft is operated, be provided with the eccentric shaft section on the main shaft for the mechanical energy when transmitting the rotor operation, corresponding position is provided with bearing retainer ring slot and shoulder etc. on the main shaft, and the inside axial oil duct 407 and the radial oil duct 411 of being equipped with of main shaft provide lubrication and cooling for rotor bearing and end cover bearing, and main shaft both ends are equipped with front and back counter weight respectively, and wherein drive end counter weight and flywheel are integrated for balancing bearing unbalance and reduction rotational speed fluctuation rate.

Example 6

As shown in fig. 2, the engine is further provided with other accessories 8, the other accessories comprise a retainer 801, a ball bearing 802, a spark plug 803, an oil sprayer 804, an internal gear 805, an exhaust manifold 806, a needle bearing 807, a fixing bolt 808, a locating pin 809, an oil seal 810, an external gear 811, a first air inlet manifold 812 and a second air inlet manifold 813, the retainer 801 is sleeved on the middle rear side of the rear half shaft 406 and is installed in a retainer groove 304, the ball bearing 802 is sleeved on the rear half shaft 406 on the right side of the retainer 801 and is installed in a bearing hole 305, the oil seal 810 is sleeved on the rear half shaft 406 on the right side of the ball bearing 802, the spark plugs 803 are three, the three spark plugs 803 are installed on three sides of the triangular cylinder body 106 respectively, the head of the spark plug 803 penetrates into the combustion chamber 103, the oil sprayer 804 is installed at the oil sprayer installation seat 203, the head of the oil sprayer 804 penetrates into the combustion chamber 103, the internal gear 811 is fixed on the inner end surface of the front end cover body 210 through the bolt and the external gear bolt hole 206, the external gear 811 is sleeved on the front side of the rear half shaft 406, the external gear 811 is meshed with the external gear 811 through the outer gear pin 8 ' and is meshed with the rotor ' 501 ' in a font shape; the exhaust manifolds 806 are three, the three exhaust manifolds 806 are respectively installed at the exhaust holes 201, the needle bearings 807 are sleeved between the 8-shaped rotor 501 and the rear half shaft 406, the fixing bolts 808 sequentially penetrate through the front bolt holes 208, the bolt holes 109 and the rear bolt holes 307 to enable the front end cover assembly 2, the cylinder body assembly 1 and the rear end cover assembly 3 to be connected through bolts, the positioning pins 809 sequentially penetrate through the front positioning pin holes 207, the positioning pin holes 105 and the rear positioning pin holes 308 to enable the front end cover assembly 2, the cylinder body assembly 1 and the rear end cover assembly 3 to be positioned, the first air inlet manifold 812 is connected with the second air inlet manifold 813, and the other end of the second air inlet manifold 813 is connected with the air inlet holes 301.

The two grooves are arranged on the two end faces of the 8-shaped rotor 501 and used for installing the end face sealing piece 7 to avoid air leakage of the end face of the combustion chamber, the 8-shaped rotor 501 is provided with an air inlet and an air outlet, and the air inlet and the air outlet are matched with two end covers to form a stable air inlet and outlet phase and an air inlet and outlet channel. The 8-shaped rotor 501 is provided with a positioning hole for installing an external gear 811, and the external gear 811 is matched with the internal gear 805 to limit the motion law of the rotor.

Three exhaust manifolds 806, an internal gear 805, and three injectors 804 are integrally mounted on the front end cover body 210; the second intake manifold 813 is mounted on the rear end cap body 310 by bolts; external gear 811 is fixed on the '8' -shaped rotor 501 through a spring pin, end face springs 701 and end face sealing strips 702 are integrally arranged on two end faces of the '8' -shaped rotor 501, and the engine assembly is used for assembling, connecting and positioning the cylinder assembly 1, the front end cover assembly 2 and the rear end cover assembly 3 through fixing bolts 808 and positioning pins 809.

Example 7

As shown in fig. 2, the radial sealing elements 6 are three groups, the radial sealing elements 6 comprise radial springs 601 and radial sealing strips 602, the radial springs 601 and the radial sealing strips 602 are installed in the radial sealing element installation grooves 107, the radial sealing strips 602 limit the radial springs 601 in the radial sealing element installation grooves 107, the end face sealing elements 7 are two groups, the end face sealing elements 7 comprise end face springs 701 and end face sealing strips 702, two end faces of the '8' -shaped rotor 501 are respectively provided with the end face sealing element installation grooves 502, the end face springs 701 and the end face sealing strips 702 are installed in the end face sealing element installation grooves 502, and the end face sealing strips 702 limit the end face springs 701 in the end face sealing element installation grooves 502.

The radial seal 6 and the end face seal 7 are used for sealing working chambers (cavities formed by the cylinder/rotor and the front and rear end caps) against combustion chamber blow-by.

As shown in fig. 3 to 7, the triangular cylinder body 106, the front end cover body 210 and the rear end cover body 310 are in a triangle-like structure, the triangle-like structure is formed by three long sides and three short sides which are connected at intervals, a front positioning pin hole 207 or a positioning pin hole 105 or a rear positioning pin hole 308 is formed in the center of each long side, a front bolt hole 208 or a bolt hole 109 or a rear bolt hole 307 is formed in the joint of two adjacent sides, a lubricating oil duct 101 is respectively formed in each of the three long sides of the triangular cylinder body 106, and a spark plug mounting hole is respectively formed in each of the three short sides of the triangular cylinder body 106 for mounting a spark plug 803.

As shown in fig. 3, the three semicircular cavities 108 are formed by connecting three semicircular cavities, the tops of the three semicircular cavities are respectively provided with a combustion chamber 103, and the connecting positions of the three semicircular cavities are respectively provided with a radial sealing member 6.

Example 8

The invention discloses a working method of a novel rotor engine structure, which comprises the following steps:

step 1: the novel rotor engine structure is assembled, combustion chambers 103 are respectively arranged at the three tops of three semicircular cavities 108, each combustion chamber 103 is respectively provided with a spark plug 803 and an oil sprayer 804, the spark plugs 803 of the three combustion chambers 103 are used for ignition at intervals, the oil sprayer 804 is used for spraying oil while the ignition is performed, the three semicircular cavities 108 are divided into three working chambers by an 8-shaped rotor 501, and when the combustion chamber 103 in one working chamber is used for ignition, one of the other two working chambers is used for air intake and the other two working chambers are used for air exhaust;

Step 2: when the first air inlet header pipe 812 is used for air inlet, air enters the air inlet of the 8-shaped rotor 501 through the air inlet holes 301, the first working chamber space is compressed at the moment along with the slow anticlockwise rotation of the 8-shaped rotor 501, when the first working chamber space is compressed to the minimum, the first combustion chamber 103 which is propped against one end of the 8-shaped rotor 501 is ignited, the air rapidly expands, the 8-shaped rotor 501 is pushed to rotate rapidly, the air outlet of the 8-shaped rotor 501 is communicated with the air outlet 201, and the air is discharged;

step 3: then the air inlet of the rotating 8-shaped rotor 501 is communicated with the air inlet 301 to perform air intake, the 8-shaped rotor 501 compresses the space of the second working chamber, when the space of the second working chamber is compressed to the minimum, the second combustion chamber 103 which is propped against one end of the 8-shaped rotor 501 is ignited, the air rapidly expands to push the 8-shaped rotor 501 to rapidly rotate, so that the air outlet of the 8-shaped rotor 501 is communicated with the air outlet 201, and the air is discharged;

step 4: then the air inlet of the rotating 8-shaped rotor 501 is communicated with the air inlet 301 to perform air intake, the 8-shaped rotor 501 compresses the space of the third working chamber, when the space of the third working chamber is compressed to the minimum, the third combustion chamber 103 which is propped against one end of the 8-shaped rotor 501 is ignited, the air is rapidly expanded, the 8-shaped rotor 501 is pushed to rapidly rotate, so that the air outlet of the 8-shaped rotor 501 is communicated with the air outlet 201, and the air is discharged;

Step 5: along with the rapid rotation of the 8-shaped rotor 501, the main shaft assembly 4 is driven to rotate rapidly, and as the internal gear 805 is fixed on the inner end surface of the front end cover body 210 through the cooperation of the bolts and the gear bolt holes 206, the external gear 811 is sleeved on the front side of the rear half shaft 406, the external gear 811 is fixed on the 8-shaped rotor 501 through a spring pin, and the internal gear 805 is meshed with the external gear 811, the 8-shaped rotor 501 rotates counterclockwise for 1 circle, and the main shaft assembly 4 rotates clockwise for 2 circles.

In the traditional rotor engine, the external gear is fixed without rotation, and the internal gear is fixed on the rotor and rotates along with the rotor, so that:

w _{inner part} /w _{Outer part} =2/3

（w _{Inner part} -w）/（w _{Outer part} -w）=2/3

At this time w _{Outer part} =0

w=3w _{Inner part}

Therefore, the eccentric shaft and the triangular rotor are in the same direction, the triangular rotor of the traditional rotor engine rotates for 1 circle, and the eccentric shaft rotates for 3 circles.

According to the invention, the inner gear and the outer gear are adjusted, the outer gear is fixed on the 8-shaped rotor through the spring pin, and the inner gear is fixed on the front end cover body and is not moved, so that:

w _{inner part} /w _{Outer part} =2/3

（w _{Inner part} -w）/（w _{Outer part} -w）=2/3

At this time w _{Inner part} =0

-w=2w _{Outer part}

Therefore, the 8-shaped rotor and the main shaft assembly are reversed, the 8-shaped rotor rotates anticlockwise for 1 circle, and the main shaft assembly rotates clockwise for 2 circles, so that the torque characteristic of the engine in a low-speed state can be improved, the engine has larger torque in low custom, and the application range of the engine is further expanded.

The working principle of the invention is as follows:

as shown in fig. 1 and 2, the invention discloses a novel rotor engine structure, which comprises a cylinder body assembly 1, a front end cover assembly 2, a rear end cover assembly 3, a main shaft assembly 4 and a rotor assembly 5, wherein the cylinder body assembly 1, the front end cover assembly 2 and the rear end cover assembly 3 are connected by bolts to form an engine body, the main shaft assembly 4 sequentially passes through a front center hole 209 of the front end cover assembly 2, the center of an 8-shaped rotor 501 in the cylinder body assembly 1 and a rear center hole 309 of the rear end cover assembly 3, and two ends of the main shaft assembly 4 are limited, the invention adopts the matching of the 8-shaped rotor 501 and a three-semicircle cavity 108, the matching form increases the volume difference, the compression ratio is improved, the heat efficiency is greatly improved, the engine moving parts are fewer, in particular the lubrication state of a radial sealing part 6 is greatly improved, the radial sealing part 6 is converted into a fixed part by a moving part, and the mixed gas is discharged through the rotor after the rotor is compressed to realize work through a rotor air inlet, the whole is more compact, the power density is higher, and better power and the economical efficiency and the heat efficiency are better.

The invention discloses a novel rotor engine structure, which is similar to a wankel rotor engine with internal and external exchange, wherein a rotor is in an oval 8 shape, a cylinder body is in a triangle-like shape, the matching form increases the volume difference, the compression ratio can be greatly improved, and the heat efficiency is greatly improved.

According to the rotor engine, the three tops of the three semicircular cavities are respectively provided with the combustion chambers, each combustion chamber is respectively provided with the spark plugs and the fuel injectors, the spark plugs of the three combustion chambers are used for ignition at intervals, the fuel injectors are used for ignition at intervals at the same time of ignition, the local temperature of the cylinder body is prevented from being too high, the thermal stress state of the cylinder body is improved, the phenomenon of poor sealing of the cylinder body caused by too large thermal deformation of the part of the cylinder body is avoided, the phenomenon of power reduction is avoided, and the service fatigue life of the engine is prolonged.

According to the invention, the internal gear is fixed on the inner end surface of the front end cover body through the matching of the bolts and the gear bolt holes, the external gear is fixed on the 8-shaped rotor through the spring pin, the internal gear is meshed with the external gear, and the tooth ratio is 3:2, so the 8-shaped rotor rotates anticlockwise for 1 circle, the main shaft assembly rotates clockwise for 2 circles, and the low-speed torque characteristic of the engine is improved.

The rotor engine comprises an elliptic 8-shaped rotor and a similar triangular cylinder body, fewer engine moving parts, particularly the lubrication state of radial sealing elements is greatly improved, the sealing elements at the top of the traditional triangular rotor are replaced by radial sealing elements at the positions of three semicircular cavities, the moving elements are converted into fixed elements, and the radial sealing elements are independently lubricated, so that the rotor engine has better dynamic property, economy and reliability when in operation, and has great potential in the application aspect of an aeronautical system.

When the rotor engine is operated, the mixed gas is discharged through the 8-shaped rotor after acting through the 8-shaped rotor air inlet compression cylinder, so that the engine is compact in whole, higher in power density and better in dynamic property, economy and thermal efficiency.

While 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 may 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 may 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, but only by the scope of the appended claims.

Claims (10)

1. A novel rotary engine structure, characterized in that: the engine comprises a cylinder body assembly (1), a front end cover assembly (2), a rear end cover assembly (3), a main shaft assembly (4) and a rotor assembly (5), wherein the cylinder body assembly (1), the front end cover assembly (2) and the rear end cover assembly (3) are of a triangle-like structure, three semicircular cavities (108) are formed in the center of the cylinder body assembly (1), radial sealing pieces (6) are respectively arranged at the joint of three semicircles of the three semicircular cavities (108), a front center hole (209) is formed in the center of the front end cover assembly (2), a rear center hole (309) is formed in the center of the rear end cover assembly (3), the front center hole (209), the three semicircular cavities (108) and the rear center hole (309) are coaxially arranged, the cylinder body assembly (1), the front end cover assembly (2) and the rear end cover assembly (3) are fixedly connected to form an engine body, the rotor assembly (5) comprises an 8-shaped rotor (501), end face sealing pieces (7) are respectively arranged at two end faces of the 8-shaped rotor (501) and are respectively arranged in the three semicircular cavities (108), the main shaft assembly (108), the front center hole (209) penetrates through the front center hole (209) of the front end cover assembly (2) and the front end cover assembly (3), and the two ends of the main shaft assembly (4) are limited.

2. A novel rotary engine structure according to claim 1, characterized in that: the cylinder body assembly (1) comprises a lubricating oil duct (101), an oil sprayer mounting hole (102), a combustion chamber (103), a cooling water cavity (104), a positioning pin hole (105), a triangular cylinder body (106), a radial seal mounting groove (107) and bolt holes (109), three semicircular cavities (108) are formed in the center of the triangular cylinder body (106), the combustion chamber (103) is formed in the three tops of the three semicircular cavities (108), the oil sprayer mounting hole (102) is formed in one side, close to a front end cover assembly (2), of the combustion chamber (103), radial seal mounting grooves (107) are formed in the three semicircular joints of the three semicircular cavities (108), the radial seal (6) is mounted in the radial seal mounting grooves (107), the lubricating oil duct (101) is formed in the three outer walls of the triangular cylinder body (106), the lubricating oil duct (101) is communicated with the radial seal mounting grooves (107), the cooling water cavity (104) is uniformly distributed on the triangular cylinder body (106) around the three semicircular cavities (108), and the edges of the triangular cylinder body (106) are uniformly distributed with the positioning pin holes (105) and the bolt holes (109).

3. A novel rotary engine structure according to claim 2, characterized in that: the front end cover assembly (2) comprises an exhaust hole (201), a front lubricating oil outer hole (202), an oil sprayer mounting seat (203), a front cooling water cavity (204), a front lubricating oil inner hole (205), a gear bolt hole (206), a front positioning pin hole (207), a front bolt hole (208), a front center hole (209) and a front end cover body (210), wherein the center of the front end cover body (210) is provided with the center hole (209), the inner side of the center hole (209) is circumferentially distributed with the gear bolt hole (206), three exhaust holes (201) are uniformly distributed on the front end cover body (210) around the front center hole (209), when the '8' -shaped rotor (501) rotates to the phase position of the exhaust hole (201), the air outlet of the '8' -shaped rotor (501) is communicated with the exhaust hole (201), three oil sprayer mounting seats (203) are uniformly distributed at the edge of the front end cover body (210), the three oil sprayer mounting seats (203) are corresponding to the positions of the three oil sprayer mounting holes (102), the outer end surface of the front end cover body (210) is distributed with the front lubricating oil outer hole (202), the inner end surface of the front end cover body (210) is distributed with the inner hole (205), the positions of the front lubricating oil inner hole (205) are corresponding to the positions of the front end surface (7), the front end cover body (210) is characterized in that a front cooling water cavity (204) is further distributed on the inner end face of the front end cover body (210), the front cooling water cavity (204) corresponds to the cooling water cavity (104), front positioning pin holes (207) and front bolt holes (208) are uniformly distributed on the edge of the front end cover body (210), the front positioning pin holes (207) correspond to the positioning pin holes (105), and the front bolt holes (208) correspond to the bolt holes (109).

4. A novel rotary engine structure according to claim 3, characterized in that: the rear end cover assembly (3) comprises an air inlet hole (301), a rear cooling water cavity (302), a rear lubricating oil inner hole (303), a retainer ring groove (304), a bearing hole (305), a rear lubricating oil outer hole (306), a rear bolt hole (307), a rear positioning pin hole (308), a rear central hole (309) and a rear end cover body (310), wherein the rear central hole (309) is formed in the center of the rear end cover body (310), the retainer ring groove (304) and the bearing hole (305) are formed in the inner ring of the rear central hole (309), three air inlet holes (301) are uniformly distributed on the rear end cover body (310) around the rear central hole (309), and when the 8-shaped rotor (501) rotates to the phase position of the air inlet hole (301), the air inlet of the 8-shaped rotor (501) is communicated with the air inlet hole (301); the inner end face of the rear end cover body (310) is distributed with a rear cooling water cavity (302), the rear cooling water cavity (302) corresponds to the position of the cooling water cavity (104), the inner end face of the rear end cover body (310) is further distributed with a rear lubricating oil inner hole (303), the outer end face of the rear end cover body (310) is uniformly distributed with a rear lubricating oil outer hole (306), the rear lubricating oil outer hole (306) is communicated with the rear lubricating oil inner hole (303), the edge of the rear end cover body (310) is uniformly distributed with a rear bolt hole (307) and a rear positioning pin hole (308), the rear bolt hole (307) corresponds to the position of the bolt hole (109), and the rear positioning pin hole (308) corresponds to the position of the positioning pin hole (105).

5. The novel rotary engine structure according to claim 4, wherein: the main shaft assembly (4) comprises a front counterweight (401), a compression nut (402), a first flat key (404), a front half shaft (405), a rear half shaft (406), a flywheel (408), a second flat key (409) and a nut (410), wherein the front counterweight (401) is sleeved on the front side of the front half shaft (405), the compression nut (402) is sleeved on the front half shaft (405) on the front side of the front counterweight (401) to compress the front counterweight (401), the rear side of the front half shaft (405) is connected with the front side of the rear half shaft (406) through the first flat key (404) in a key manner, the flywheel (408) is sleeved on the rear side of the rear half shaft (406) in a key manner, and the flywheel (408) is connected with the rear half shaft (406) through the second flat key (409), and the nut (410) is mounted on the rear half shaft (406) on the rear side of the flywheel (408); the axial direction of the front half shaft (405) and the axial direction of the rear half shaft (406) are also fixed through shaft shoulder screws (403), an axial oil duct (407) and a radial oil duct (411) are formed in the rear half shaft (406), and the axial oil duct (407) is communicated with the radial oil duct (411).

6. The novel rotary engine structure of claim 5, wherein: still include other annex (8), other annex include retaining ring (801), ball bearing (802), spark plug (803), sprayer (804), internal gear (805), exhaust manifold (806), needle bearing (807), fixing bolt (808), locating pin (809), oil blanket (810), external gear (811), first intake manifold (812) and second intake manifold (813), retaining ring (801) suit is in the middle back side in rear half axle (406) and install in retaining ring recess (304), ball bearing (802) suit is on rear half axle (406) on the right side of retaining ring (801) and install in bearing hole (305), oil blanket (810) suit is on rear half axle (406) on the right side of ball bearing (802), spark plug (803) are three, and three spark plug (803) are installed in three sides of triangle-shaped cylinder body (106) respectively, and inside spark plug (805) head penetrates combustion chamber (103), sprayer (804) are installed in sprayer mount pad (203) department, and sprayer (804) head pass through sprayer (103) and penetrate into combustion chamber (102) and be fixed in end cover (210) through bolt hole (102), the external gear (811) is sleeved on the front side of the rear half shaft (406), the external gear (811) is fixed on the 8-shaped rotor (501) through a spring pin, and the internal gear (805) is meshed with the external gear (811); the exhaust manifold (806) is three, and three exhaust manifold (806) are installed in exhaust hole (201) department respectively, needle bearing (807) suit is between "8" style of calligraphy rotor (501) and rear axle (406), and radial oil duct (411) are corresponding with needle bearing (807) position, fixing bolt (808) pass preceding bolt hole (208), bolt hole (109) and rear bolt hole (307) in proper order and are connected front end cover assembly (2), cylinder body assembly (1) and rear end cover assembly (3) bolt, locating pin (809) pass preceding locating pin hole (207), locating pin hole (105) and rear locating pin hole (308) in proper order and are fixed a position front end cover assembly (2), cylinder body assembly (1) and rear end cover assembly (3), first intake manifold (812) connect second intake manifold (813), and the other end of second intake manifold (813) connect inlet port (301).

7. The novel rotary engine structure of claim 6, wherein: radial seal (6) are three sets of, and radial seal (6) include radial spring (601) and radial sealing strip (602), and radial spring (601) and radial sealing strip (602) are installed in radial seal mounting groove (107), and radial sealing strip (602) are spacing radial spring (601) in radial seal mounting groove (107), terminal surface seal (7) are two sets of, and terminal surface seal (7) include terminal surface spring (701) and terminal surface sealing strip (702), and "8" style of calligraphy rotor (501) both ends face is provided with terminal surface seal mounting groove (502) respectively, and terminal surface spring (701) and terminal surface sealing strip (702) are installed in terminal surface seal mounting groove (502), and terminal surface sealing strip (702) are spacing terminal surface spring (701) in terminal surface seal mounting groove (502).

8. The novel rotary engine structure of claim 7, wherein: triangle-shaped cylinder body (106), front end housing body (210) and rear end housing body (310) are the class triangle-shaped structure, and class triangle-shaped structure is formed by three long limit and three minor face interval connection, and preceding locating pin hole (207) or locating pin hole (105) or back locating pin hole (308) have been seted up at three long limit centers, and preceding bolt hole (208) or bolt hole (109) or back bolt hole (307) have been seted up in adjacent both sides department of meeting, lubrication oil duct (101) have been seted up respectively on three long limit of triangle-shaped cylinder body (106), have seted up the spark plug mounting hole respectively on three minor faces of triangle-shaped cylinder body (106) for install spark plug (803).

9. The novel rotary engine structure of claim 8, wherein: the three semicircular cavities (108) are formed by connecting three semicircular cavities, combustion chambers (103) are respectively formed at the tops of the three semicircular cavities, and radial sealing pieces (6) are respectively arranged at the connecting positions of the three semicircular cavities.

10. The working method of the novel rotor engine structure is characterized by comprising the following steps of:

step 1: assembling the novel rotor engine structure of claim 9, wherein combustion chambers (103) are respectively arranged at three tops of three semicircular cavities (108), each combustion chamber (103) is respectively provided with a spark plug (803) and an oil injector (804), the spark plugs (803) of the three combustion chambers (103) are ignited at intervals, the oil injectors (804) spray oil at the same time of ignition, the three semicircular cavities (108) are divided into three working chambers by an 8-shaped rotor (501), and when the combustion chamber (103) in one working chamber ignites, one of the other two working chambers is used for air intake and the other two working chambers is used for air exhaust;

step 2: when the first air inlet header pipe (812) is used for air inlet, air enters an air inlet of the 8-shaped rotor (501) through the air inlet hole (301), the first working chamber space is compressed at the moment along with the slow anticlockwise rotation of the 8-shaped rotor (501), when the first working chamber space is compressed to the minimum, the first combustion chamber (103) abutted against one end of the 8-shaped rotor (501) is ignited, the air rapidly expands, the 8-shaped rotor (501) is pushed to rotate rapidly, the air outlet of the 8-shaped rotor (501) is communicated with the air outlet hole (201), and the air is discharged;

Step 3: then the air inlet of the rotating 8-shaped rotor (501) is communicated with the air inlet hole (301) to perform air inlet, the 8-shaped rotor (501) compresses the space of the second working chamber, when the space of the second working chamber is compressed to the minimum, the second combustion chamber (103) which is propped against one end of the 8-shaped rotor (501) ignites, the air rapidly expands to push the 8-shaped rotor (501) to rapidly rotate, so that the air outlet of the 8-shaped rotor (501) is communicated with the air outlet hole (201), and the air is discharged;

step 4: then the air inlet of the rotating 8-shaped rotor (501) is communicated with the air inlet hole (301) to perform air inlet, the 8-shaped rotor (501) compresses the space of the third working chamber, when the space of the third working chamber is compressed to the minimum, the third combustion chamber (103) which is propped against one end of the 8-shaped rotor (501) ignites, the air rapidly expands, the 8-shaped rotor (501) is pushed to rapidly rotate, the air outlet of the 8-shaped rotor (501) is communicated with the air outlet hole (201), and the air is discharged;

step 5: along with the rapid rotation of the 8-shaped rotor (501), the main shaft assembly (4) is driven to rotate rapidly, as the internal gear (805) is fixed on the inner end face of the front end cover body (210) through the matching of the bolts and the gear bolt holes (206), the external gear (811) is sleeved on the front side of the rear half shaft (406), the external gear (811) is fixed on the 8-shaped rotor (501) through a spring pin, and the internal gear (805) is meshed with the external gear (811), the 8-shaped rotor (501) rotates anticlockwise for 1 circle, and the main shaft assembly (4) rotates clockwise for 2 circles.

Images