CN213116456U

CN213116456U - Cover body of rotary engine

Info

Publication number: CN213116456U
Application number: CN202021910871.4U
Authority: CN
Inventors: 赵新年; 李军生; 计超
Original assignee: Shaanxi Xinnian Power Technology Co ltd
Current assignee: Shaanxi new year Power Technology Group Co.,Ltd.
Priority date: 2020-09-04
Filing date: 2020-09-04
Publication date: 2021-05-04
Anticipated expiration: 2030-09-04

Abstract

The utility model relates to a cover body of a rotary engine, which comprises an upper end cover, an outer inclined cover, a stator, an inner inclined cover and a lower end cover from top to bottom; the stator is internally provided with a three-petal-shaped cavity surrounded by three sections of circular arcs, and an 8-shaped rotor is arranged in the three-petal-shaped cavity; the rotor is connected with the cover body through a bearing; the stator is connected with the outer inclined cover and the inner inclined cover in an angle sealing mode respectively. The utility model provides a lubricated, sealed, refrigerated guarantee that rotor engine's lid provides for rotor engine rotor's operation. Thereby greatly prolonging the service life of the 8-shaped rotor engine and reducing the maintenance frequency of the engine; in addition, the cover body is simple in structure, easy and convenient to operate in operation and has a deep prospect in industrial application.

Description

Cover body of rotary engine

Technical Field

The utility model belongs to the technical field of rotary engine, concretely relates to rotary engine's lid.

Background

In recent years, rotary engines have gradually entered the market; especially a conventional delta rotor engine. Comparison of a rotary engine with a conventional reciprocating engine: both reciprocating engines and rotary engines rely on the expansion pressure generated by the combustion of an air-fuel mixture to obtain a rotational force. The mechanism of the two engines differs in the way expansion pressure is used. In a reciprocating engine, expansion pressure generated at the top surface of the piston pushes the piston downward, and mechanical force is transmitted to a connecting rod to rotate a crankshaft. The rotary engine, for which the expansion pressure acts on the side of the rotor. Thereby pushing one of the three faces of the triangular rotor towards the center of the eccentric shaft. This movement is performed under the force of two force components. One is a centripetal force directed toward the center of the output shaft and the other is a tangential force causing the output shaft to rotate.

Because the internal temperature of the rotary engine is extremely high during the high-speed operation process of the rotary engine, and the operation speed is very high, the requirement of the traditional rotary engine on most equipment including a rotor is very high; thereby causing the problems of high equipment cost, high maintenance frequency, high cost and the like of the whole engine.

SUMMERY OF THE UTILITY MODEL

Based on the background technology, the utility model provides a rotor engine cover, in particular to a 8-shaped rotor engine; the lubricating property of the rotor is effectively increased, the friction is reduced, and the sealing property is increased in the running process of the rotor engine; and provide reasonable cooling to the equipment operated; not only improves the operation efficiency of the equipment, but also greatly reduces the loss of the equipment such as a rotor and the like.

The cover body comprises an upper end cover, an outer inclined cover, a stator, an inner inclined cover and a lower end cover from top to bottom; the stator is internally provided with a three-petal-shaped cavity surrounded by three sections of circular arcs, and an 8-shaped rotor is arranged in the three-petal-shaped cavity; the rotor is connected with the cover body through a bearing;

the stator is connected with the outer inclined cover and the inner inclined cover in an angle sealing mode respectively.

The cover body provided by the utility model is mainly directed to the 8-shaped rotor engine; the stator of the rotor engine is internally provided with a three-petal cavity surrounded by three sections of circular arcs; the rotor is 8-shaped, is provided with an arc side wall, is positioned in the three-petal-shaped cavity in the stator, and the arc of the head part of the 8-shaped is matched with the arc of the three-petal-shaped cavity. The rotor engine has the advantages of high energy supply efficiency, fuel universality and the like; the utility model discloses based on this type's rotary engine, research and development corresponding lid makes its engine life longer, and fuel acting efficiency is higher.

The utility model provides an angle sealing mode adopts the mode of specific structure to connect in three lamella shape cavities.

Particularly, the herringbone groove is arranged at the included angle of the three sections of circular arcs which are intersected with each other; herringbone grooves with the same shape are arranged on the outer inclined cover and the inner inclined cover and correspond to the stator; and the stator is respectively fixedly sealed with the outer inclined cover and the inner inclined cover through a herringbone sealing sheet.

The three sections of circular arcs are respectively provided with three included angles, and each included angle is provided with a herringbone groove. The outer eccentric cover and the stator are connected, fixed and sealed through three herringbone sealing sheets, and the inner eccentric cover and the stator are connected, fixed and sealed through the other three herringbone sealing sheets; six sealing sheets are adopted for connection from top to bottom. The number of the herringbone grooves is matched with the shape of the rotor engine, and the connection sealing effect is more stable in the operation process.

Wherein, the three sections of circular arcs are of symmetrical structures. Therefore, the three herringbone grooves are also of a symmetrical structure; further ensuring the stability of operation.

The utility model discloses a further improve the sealed effect and the lubricated effect of rotor and lid isotructure, under the mode that provides above-mentioned angle seal, further optimize the structure of its lid.

And the sharp corner of the front end of the herringbone groove on the stator is superposed with the included angle point of the three arcs. The structure is mainly arranged to provide a prerequisite for the arrangement of the subsequent lubricating oil hole and the oil hole.

Wherein, the lubricating oil hole with the machine oil hole is the utility model discloses a differential expression can be collectively called the machine oil hole in practical application. The two holes function similarly, primarily to facilitate the addition of oil. In practical application, an operator can add engine oil according to the operation condition of the engine, so that the lubricating effect can be achieved, and a certain cooling effect can be achieved on equipment in use.

Preferably, a lubricating oil hole is formed in the front end of the herringbone groove in the outer inclined cover;

preferably, the front end of the herringbone groove on the inner inclined cover is provided with a lubricating oil hole.

Preferably, an engine oil hole is formed in the middle of the herringbone groove in the outer inclined cover

Preferably, an engine oil hole is formed in the middle of the herringbone groove in the inner deflector cover.

Because the front end sharp corner of the herringbone groove on the stator is superposed with the included angle point of the three arcs; therefore, the engine oil added through the lubricating oil hole at the front end of the herringbone groove can flow into the space between the rotor and the inclined cover; a very ideal side sealing effect can be achieved. Engine oil is added through an engine oil hole at the front end of the herringbone groove; the surfaces of the upper and lower sealing sheets and the rotor can obtain excellent lubricating effect and sealing effect.

In practical situations, the outer inclined cover and the inner inclined cover have certain symmetrical effect; "outer" and "inner" are relative positions; and are not absolutely visually "outer", "inner", "upper", "lower".

Particularly, the stator provided by the utility model is of a three-petal symmetrical structure, so that the number of the herringbone grooves on each inclined cover is three, and the number of the lubricating oil holes and the number of the engine oil holes are three respectively; the engine oil is added more uniformly, and the usage amount of the engine oil is more reasonable.

The utility model discloses further propose, in order to improve its angle seal effect, optimize shape and size of herringbone groove; because the herringbone groove is completely matched with the herringbone sealing piece, the herringbone sealing piece is used for limiting in the following.

Preferably, the thickness of the herringbone sealing piece is 1.5-2 mm, and more preferably 1.5-1.88 mm.

Preferably, the height of the herringbone sealing piece is 6-8 mm, and more preferably 6-6.88 mm.

Wherein the diameter of the cover body is 450-650 mm; this dimension is the size of a conventional universal cover.

The utility model further provides that the herringbone sealing sheet is inserted into the stator, and a ceramic layer is arranged on the surface which is in contact with the rotor;

preferably, the contact surface of the rotor and the herringbone sealing sheet is provided with a ceramic layer.

The ceramic layer can further increase the lubricating effect and reduce friction, thereby prolonging the service life of the equipment to a greater extent.

The cover body provided by the utility model also comprises other settings of the rotor engine cover body; for example, the upper end cover is provided with an air inlet and a coolant inlet; an exhaust port is arranged on the lower end cover.

The utility model provides a lubricated, sealed, refrigerated guarantee that rotor engine's lid provides for rotor engine rotor's operation. Thereby greatly prolonging the service life of the 8-shaped rotor engine and reducing the maintenance frequency of the engine; in addition, the cover body is simple in structure, easy and convenient to operate in operation and has a deep prospect in industrial application.

Drawings

Fig. 1 is a schematic structural view of a cover body of a rotary engine according to the present invention;

fig. 2 is a schematic structural view of the outer inclined cover of the present invention;

fig. 3 is a schematic structural diagram of the stator of the present invention;

fig. 4 is a schematic structural view of the upper end cover of the present invention;

FIG. 5 is a schematic structural view of the herringbone groove of the present invention;

in the figure: 1. a herringbone groove; 2. a lubricating oil hole; 3. an engine oil hole; 4. a three-lobed cavity; 5. an air inlet; 6. a coolant inlet; 7. a bearing; 8. an upper end cover; 9. an outer deflector cover; 10. a stator; 11. an inner biased cover; 12. a lower end cover; 13. and (7) an exhaust port.

Detailed Description

The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, and the connection may be an electrical connection, a communication connection or a mechanical connection; the terminology used is for the purpose of describing the invention only and is not intended to be limiting, nor is it intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation; and therefore should not be construed as limiting the scope of the invention.

The following embodiments are directed to an 8-shaped rotor engine, wherein a stator of the 8-shaped rotor engine is internally provided with a three-petal-shaped cavity formed by three circular arcs; the rotor is 8-shaped, is provided with an arc side wall, is positioned in the three-petal-shaped cavity in the stator, and the arc of the head part of the 8-shaped is matched with the arc of the three-petal-shaped cavity.

Examples

The present embodiment provides a cover body of a rotary engine, referring to fig. 1, the cover body includes an upper end cover 8, an outer inclined cover 9, a stator 10, an inner inclined cover 11, and a lower end cover 8 from top to bottom;

as shown in a structural schematic diagram of the stator in fig. 3, a three-petal cavity 4 surrounded by three arcs is arranged inside the stator, and the stator has a symmetrical structure; an 8-shaped rotor is arranged in the three-petal-shaped cavity; the rotor is connected with the cover body through a bearing 7;

Referring to fig. 2 and 3, a herringbone groove 1 is arranged at the included angle of the three arcs of the stator, which are intersected with each other; herringbone grooves 1 with the same shape are arranged on the outer inclined cover and the inner inclined cover and correspond to the stator; and the stator is respectively fixedly sealed with the outer inclined cover and the inner inclined cover through a herringbone sealing sheet. The structural schematic diagram of the herringbone sealing piece is shown in figure 5.

In the embodiment, the diameters of the structures of the cover body parts are approximately the same; the diameter is 512mm, four ears are not added on the upper end cover and the lower end cover, and the addition of the ears is 600 mm; based on the diameters of the stator and the bias cover, the thickness of the herringbone-shaped groove is 1.5-1.88 mm, and the height of the herringbone-shaped groove is 6-6.88 mm.

Furthermore, the sharp corner of the front end of the herringbone groove on the stator coincides with the included angle point of the three arcs.

Lubricating oil holes 2 are formed in the front ends of the herringbone grooves in the outer inclined cover and the inner inclined cover; an engine oil hole 3 is arranged in the middle of the herringbone groove on the inner inclined cover of the outer inclined cover. The sharp corner of the front end of the herringbone groove 1 on the stator is superposed with the included angle point of the three arcs; the engine oil fed through the lubricating oil hole 2 can flow into the space between the rotor and the eccentric cover, so that a very ideal side sealing effect is achieved. Engine oil is added through the engine oil hole 3; the surfaces of the upper and lower sealing sheets and the rotor can obtain excellent lubricating effect and sealing effect.

further, a ceramic layer is arranged on the contact surface of the rotor and the herringbone sealing sheet.

Further, referring to fig. 4, the upper end cover 8 is provided with an air inlet 5 and a coolant inlet 6; the lower end cover 12 is provided with an exhaust port 13.

The cover body of the embodiment provides a good lubrication passage, good connection and sealing; and a certain degree of cooling effect can be achieved. Greatly improving the service life and maintenance cost of the rotary engine.

Although the invention has been described in detail in the foregoing by way of general description, specific embodiments and experiments, it will be apparent to those skilled in the art that certain modifications and improvements may be made thereto based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. The cover body of the rotor engine is characterized by comprising an upper end cover, an outer inclined cover, a stator, an inner inclined cover and a lower end cover from top to bottom; the stator is internally provided with a three-petal-shaped cavity surrounded by three sections of circular arcs, and an 8-shaped rotor is arranged in the three-petal-shaped cavity; the rotor is connected with the cover body through a bearing;

2. The cover body according to claim 1, wherein a herringbone groove is arranged at the included angle of the three arcs which are intersected with each other; herringbone grooves with the same shape are arranged on the outer inclined cover and the inner inclined cover and correspond to the stator; and the stator is respectively fixedly sealed with the outer inclined cover and the inner inclined cover through a herringbone sealing sheet.

3. The cover according to claim 1 or 2, wherein the three arcs are symmetrical.

4. A cover according to claim 3 wherein the point of the apex of the leading end of the chevron-shaped slot in the stator coincides with the point of the included angle of the three arcs.

5. A cover body as set forth in claim 4, wherein a lubrication hole is provided at a front end of the chevron-shaped groove of said outer deflector cover or said inner deflector cover.

6. The cover according to claim 2, wherein an oil hole is provided at a middle position of the chevron-shaped groove of the outer deflector cover or the inner deflector cover.

7. A cover body according to claim 5, wherein an oil hole is provided in a central position of the chevron-shaped groove in the outer deflector cover or the inner deflector cover.

8. The cover according to claim 6, wherein the chevron-shaped sealing piece has a thickness of 1.5 to 2 mm.

9. The cover according to claim 8, wherein the chevron-shaped sealing piece has a height of 6 to 8 mm.

10. A cover according to claim 2, wherein said chevron-shaped sealing piece is inserted into said stator and a ceramic layer is provided on a surface thereof which is in contact with said rotor.

11. The cover according to claim 1 or 2, wherein the upper end cover is provided with an air inlet and a coolant inlet; an exhaust port is arranged on the lower end cover.