CN217055375U

CN217055375U - Cylinder body structure of rotary engine and rotary engine

Info

Publication number: CN217055375U
Application number: CN202221047020.0U
Authority: CN
Inventors: 郑强; 赵荣
Original assignee: Shaanxi Xinyan Hydrogen Energy Technology Co ltd
Current assignee: Shaanxi Xinyan Hydrogen Energy Technology Co ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-07-26
Anticipated expiration: 2032-04-29

Abstract

The application provides a cylinder body structure of a rotary engine and the rotary engine; wherein, rotary engine's cylinder body structure includes: the cylinder body and the stator are arranged in the cylinder body, and the peripheral wall of the stator is fixedly connected with the side wall of the cylinder body; the stator is internally provided with at least three chambers which are connected in sequence and provided with arc-shaped side walls, and the joint of two adjacent chambers is provided with a sealing sheet mounting groove; the sealing sheet mounting groove is used for mounting a sealing sheet to be abutted against the side wall of the rotor engine and hermetically separating each chamber; the peripheral wall of the cylinder body is provided with a plurality of first through holes, and the first through holes are communicated with the sealing sheet mounting groove; at least one of the first through holes is used for providing a lubricating oil channel to convey lubricating oil between the sealing sheet and the side wall of the rotor. According to the cylinder body structure of rotary engine and rotary engine that this application provided, can be better protect the gasket, prolong the life of gasket.

Description

Cylinder body structure of rotary engine and rotary engine

Technical Field

The application belongs to the technical field of engines, and particularly relates to a cylinder body structure of a rotary engine and the rotary engine.

Background

An engine (also commonly referred to as an internal combustion engine) drives a device connected to an output shaft thereof mainly by burning fossil fuel as a power source. For example, many vehicles (cars, motorcycles, buses, airplanes, helicopters, etc.) that travel in daily life are driven by an engine. The engines are mainly classified into a piston engine, a turbine engine, a rotary engine, and the like. The rotor of the rotary engine rotates at a high speed in the engine cylinder body, and sealing sheets used for separating each combustion chamber of the rotary engine on the side wall of the rotor are easily damaged under the action of large centrifugal force and friction force.

In the correlation technique, adopt the mode of setting the gasket on the stator to seal each combustion chamber, can solve the easy problem of damaging of gasket to a certain extent.

However, in the related art, when the rotor rotates at a high speed, the sealing plates still receive a large friction force from the side wall of the rotor, which is not favorable for the long-time operation of the rotary engine.

SUMMERY OF THE UTILITY MODEL

The application provides a cylinder body structure and rotor engine of rotor engine can lubricate the lateral wall of gasket and rotor, has reduced the friction between gasket and the rotor lateral wall to can be better protect the gasket, prolong the life of gasket.

According to an embodiment of a first aspect of the present application, there is provided a block structure of a rotary engine, including: the cylinder body and the stator are arranged in the cylinder body, and the peripheral wall of the stator is fixedly connected with the side wall of the cylinder body; the stator is internally provided with at least three chambers which are connected in sequence and provided with arc-shaped side walls, and the joint of two adjacent chambers is provided with a sealing sheet mounting groove; the sealing sheet mounting groove is used for mounting a sealing sheet to be abutted against the side wall of the rotor engine and hermetically separating each chamber;

the peripheral wall of the cylinder body is provided with a plurality of first through holes, and the first through holes are communicated with the sealing sheet mounting groove; at least one of the first through holes is used for providing a lubricating oil channel to convey lubricating oil between the sealing sheet and the side wall of the rotor.

This application embodiment, through set up a plurality of first through-holes on the perisporium of cylinder body, first through-hole is linked together with the gasket mounting groove that is located the junction of two adjacent cavities, like this, can provide lubricating oil to the gasket through at least one first through-hole in a plurality of first through-holes to lubricate the lateral wall of gasket and rotor, reduce the friction of rotor to the gasket, thereby can be better protect the gasket, prolong the life of gasket.

In an alternative design, the sealing sheet installation groove penetrates through two surfaces of the stator, which are opposite to each other in the axial direction; and the sealing sheet mounting groove is communicated with an engine oil hole on an alloy inclined cover of the rotary engine.

Like this, the engine oil hole that covers on the alloy inclined to one side that can pass through rotary engine lubricates the gasket, reduces the friction between gasket and the rotor lateral wall, can effectively protect the gasket, prolongs the life people of gasket.

In an optional design mode, the plurality of first through holes are arranged at intervals along the axial direction of the cylinder body, a compression spring is arranged in at least one first through hole in the plurality of first through holes, and one end of the compression spring is used for abutting against one end face of the sealing sheet so as to abut against the sealing sheet against the side wall of the rotor.

Therefore, the end face of the sealing sheet can be tightly pressed on the side wall of the rotor through the compression spring, so that the tightness of the fit of the sealing sheet and the side wall of the rotor can be ensured; the sealing performance of each chamber of the rotor engine is improved.

In an alternative embodiment, the number of first through-holes is 6 to 8, wherein at least two first through-holes are used to provide the lubricant channel.

Therefore, lubricating oil can be provided for the sealing sheet through the plurality of pore channels, the sealing sheet can be lubricated through the plurality of first through holes, and the lubricating force on the sealing sheet can be improved; effectively protect the sealing piece, prolong the life of sealing piece.

In an optional design mode, a second through hole is further formed in the cylinder body and penetrates through two end faces of the cylinder body in the axial direction; the second through hole is used for being communicated with a cooling liquid circulating port on the outer inclined cover assembly of the rotor engine.

In this way, the second through hole penetrates through two end faces of the cylinder body along the axial direction, and is communicated with a cooling liquid circulating port on the rotor engine outer inclined cover assembly; therefore, the cooling liquid can flow through the second through hole, so that the engine cylinder body can be cooled, and the long-time running performance and stability of the rotary engine are ensured.

In an optional design mode, the second through holes are multiple, and the multiple second through holes are arranged at intervals around the circumferential direction of the cylinder body.

In this way, the entire block of the engine can be cooled, making the cooling more uniform.

In an optional design mode, a first annular groove is formed in the end face of the cylinder body, and the first annular groove is coaxial with the cylinder body; the first annular groove is positioned on the inner side of the second through hole along the radial direction of the cylinder body; the first annular groove is used for installing a first sealing ring.

Like this, after first sealing washer is installed in first annular groove, can seal between the second through-hole on the cylinder body and the stator and separate, can avoid the coolant liquid to the stator and the condition emergence of cavity internal leakage, promote power rotary engine operation's stability.

In an optional design mode, a second annular groove is further formed in the end face of the cylinder body and is coaxial with the cylinder body; the second annular groove is positioned on the inner side of the second through hole along the radial direction of the cylinder body; the second annular groove is used for installing a second sealing ring.

In this way, by installing the second seal ring in the second annular groove, the sealing performance of the cooling liquid circulation channel, namely the second through hole, can be improved; the normal circulation of the cooling liquid can be ensured, and the running stability of the rotary engine is improved.

In an alternative design, the side wall of the chamber has a recess, the bottom wall of which communicates with the outside of the cylinder body, the recess being used for inserting a spark plug.

Thus, the mixed gas in the cavity can be ignited through the concave part; in addition, the compression ratio of the rotary engine can be adjusted by adjusting the depth or diameter of the recess.

According to a second aspect of the embodiments of the present application, there is provided a rotary engine including the rotary engine block structure provided in any one of the alternative designs of the first aspect of the embodiments of the present application.

The construction and other objects and advantages of the present application will be apparent from the following detailed description of the preferred embodiments, read in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings without inventive labor.

FIG. 1 is a schematic structural diagram of a block structure of a rotary engine provided in an embodiment of the present application;

FIG. 2 is a top view of a block structure of a rotary engine provided in an embodiment of the present application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

fig. 4 is a front view of a rotary engine provided in an embodiment of the present application.

Description of the reference numerals:

10-cylinder body; 20-a stator;

101-a first via; 102-a second via; 103-a first annular groove; 104-a second annular groove; 210-a chamber; 211-a sealing sheet mounting groove; 212-recess.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the embodiments of the present application, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description of the present application, it is to be understood that the terms "inner," "outer," "upper," "bottom," "front," "back," and the like, when used in the orientation or positional relationship indicated in FIG. 1, are used solely for the purpose of facilitating a description of the present application and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Fig. 1 is a schematic structural view of a block structure of a rotary engine provided in an embodiment of the present application, fig. 2 is a plan view of the block structure of the rotary engine provided in the embodiment of the present application, and fig. 3 is a sectional view taken along line a-a in fig. 2.

In view of the technical problems in the related art, referring to fig. 1 to 3, an embodiment of the present application provides a cylinder block structure of a rotary engine, including: the cylinder body 10 and the stator 20, the stator 20 is arranged in the cylinder body 10, the peripheral wall of the stator 20 is fixedly connected with the side wall of the cylinder body 10; the interior of the stator 20 has at least three chambers 210 connected in series and having curved side walls.

Specifically, in the embodiment of the present application, the cylinder body 10 may be made of aluminum alloy, stainless steel, or cast iron. The material of the stator 20 may be the same as or similar to the cylinder body 10. Wherein, the stator 20 may be an integral structure with the cylinder body 10; for example, the stator 20 is integrally molded when the cylinder body 10 is molded. In some possible examples, the stator 20 may also be connected with the cylinder body 10 by welding.

It is understood that at least three chambers 210 (3 chambers 210 are shown as an example in the figures in the description of the embodiments of the present application) in the stator 20 may be communicated with each other to form an integral accommodating space, and the rotor of the rotary engine may be disposed in the accommodating space; when the rotor rotates in the accommodating space, the three chambers 210 are respectively separated.

In other words, when the rotor rotates in the accommodating space, the side wall of the rotor contacts at least the joints between the three chambers 210, thereby separating the three chambers 210. In order to ensure the independence and the sealing performance of each chamber 210, in the embodiment of the present application, the connection part of two adjacent chambers 210 has a sealing sheet installation groove 211; the seal piece mounting groove 211 is used to mount a seal piece for abutment with a rotor side wall of the rotary engine, hermetically partitioning each chamber 210.

In addition, in the embodiment of the present application, a plurality of first through holes 101 are further provided in the peripheral wall of the cylinder body 10, and the first through holes 101 communicate with the sealing sheet mounting groove 211; at least one first through hole 101 of the plurality of first through holes 101 is used to provide a lubricant passage for delivering lubricant between the sealing plate (not shown in the figure) and the side wall of the rotor.

In the embodiment of the present application, the lubricating oil may be engine oil.

This application embodiment, through set up a plurality of first through-holes 101 on the perisporium of cylinder body 10, first through-hole 101 is linked together with the gasket mounting groove 211 that is located the junction of two adjacent cavities 210, like this, can provide lubricating oil to the gasket through at least one first through-hole 101 in a plurality of first through-holes 101, thereby lubricate the lateral wall with gasket and rotor, reduce the friction of rotor to the gasket, thereby can be better protect the gasket, prolong the life of gasket.

In an alternative design, referring to fig. 3, the sealing plate mounting slot 211 extends through both axially opposite surfaces of the stator 20; the sealing sheet mounting groove 211 is used for being communicated with an oil hole on an alloy deflector of the rotary engine.

In a specific arrangement, the sealing piece mounting groove 211 can be obtained by cutting the rotor or grooving with a milling cutter.

Like this, the oil hole that covers is inclined to one side to the gasket through rotary engine's alloy lubricates, reduces the friction between gasket and the rotor lateral wall, can effectively protect the gasket, prolongs the life people of gasket.

With continued reference to fig. 1-3, in an alternative example of the embodiment of the present application, the plurality of first through holes 101 are arranged at intervals along the axial direction of the cylinder body 10, and a compression spring (not shown) is disposed in at least one first through hole 101 of the plurality of first through holes 101, and one end of the compression spring is used for abutting against one end surface of the sealing sheet so as to abut against the side wall of the rotor.

The first through hole 101 may be formed by cutting a side wall of the cylinder block body 10 along a radial direction of the cylinder block body 10 by using a machining tool such as a milling cutter. The aperture of each first through hole 101 may be the same or different.

In specific arrangement, the sealing piece mounting groove 211 can be opened first, and then the first through hole 101 is opened by positioning through the sealing piece mounting groove 211.

It can be understood that, in the embodiment of the present application, the end portion (the end portion facing the outside of the cylinder body 10) of the first through hole 101 where the compression spring is installed may be provided with a blocking piece, by which the end portion of the compression spring is abutted, thereby ensuring the compression state of the compression spring.

Therefore, the end face of the sealing sheet can be tightly pressed on the side wall of the rotor through the compression spring, so that the tightness of the sealing sheet and the side wall of the rotor can be ensured; sealing performance for each chamber 210 of the rotor engine is improved.

In some optional examples of the embodiments of the present application, the number of the first through holes 101 is 6 to 8, wherein at least two first through holes 101 are used for providing the lubricating oil passage.

Referring to fig. 1 and 3, in the drawings of the embodiment of the present application, the number of first through holes 101 is shown by 6 as an example. In some specific examples, the number of first vias 101 may be 6, 7, or 8.

In a specific arrangement, two through holes in the first through hole 101 may be used as lubricating oil passages, but in other possible examples, two through holes at two ends of the cylinder body 10 in the axial direction may also be used as lubricating oil passages. Of course, in other examples, any two or more first through holes 101 may be used as the lubricating oil passages.

Therefore, lubricating oil can be supplied to the sealing sheet through the plurality of hole channels, the sealing sheet can be lubricated through the plurality of first through holes 101, and the lubricating force on the sealing sheet can be improved; effectively protect the sealing piece, prolong the life of sealing piece.

Referring to fig. 1, 3 and 4, the cylinder body 10 is further provided with a second through hole 102, and the second through hole 102 penetrates through two end surfaces of the cylinder body 10 along the axial direction; the second through hole 102 is used for communicating with a cooling liquid circulation port on the outer biased cover assembly of the rotor engine.

In this way, the second through hole 102 penetrates through two end faces of the cylinder body 10 along the axial direction, and the second through hole 102 is communicated with a cooling liquid circulation port on the rotor engine outer biased cover assembly; in this way, the cooling liquid can flow through the second through hole 102, so that the engine block can be cooled, and the long-time running performance and stability of the rotary engine can be guaranteed.

With continued reference to fig. 4, the second through hole 102 is plural, and the plural second through holes 102 are arranged at intervals around the circumference of the cylinder body 10.

Referring to fig. 1, 3 and 4, in some alternative examples of the embodiment of the present application, the end face of the cylinder body 10 is provided with a first annular groove 103, the first annular groove 103 being coaxial with the cylinder body 10; the first annular groove 103 is located on the inner side of the second through hole 102 in the radial direction of the cylinder body; the first annular groove 103 is used for mounting a first seal ring.

Specifically, the first sealing ring may be embedded in the first annular groove 103, or may be connected in the first annular groove 103 in an adhesive manner. In addition, the end face of the first sealing ring protrudes out of the end face of the cylinder body 10, and the end face of the first sealing ring is abutted against the surface of the alloy inclined cover.

Thus, after the first sealing ring is installed in the first annular groove 103, the second through hole 102 of the cylinder body 10 and the stator 20 can be sealed and separated, the leakage of the cooling liquid into the stator 20 and the cavity 210 can be avoided, and the stability of the operation of the power rotary engine can be improved.

In an alternative design, referring to fig. 3 and 4, the end surface of the cylinder body 10 is further provided with a second annular groove 104, and the second annular groove 104 is coaxial with the cylinder body 10; the second annular groove 104 is located on the inner side of the second through hole 102 in the radial direction of the cylinder body; the second annular groove 104 is used to mount a second seal ring.

In this way, by installing the second seal ring in the second annular groove, the sealing performance with respect to the coolant circulation passage, that is, the second through hole 102 can be improved; the normal circulation of the cooling liquid can be ensured, and the running stability of the rotary engine is improved.

Referring to fig. 1 and 3, in some alternative examples of the embodiment of the present application, the side wall of the chamber 210 has a recess 212, a bottom wall of the recess 212 communicates with the outside of the block body 10, and the recess 212 is used for inserting a spark plug.

Thus, the mixed gas in the chamber 210 may be ignited by the recess 212; in addition, the compression ratio of the rotary engine can be adjusted by adjusting the depth or diameter of the recess 212.

The embodiment of the application further provides a rotary engine which comprises the cylinder body structure of the rotary engine provided by any optional implementation mode of the previous embodiment of the application.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A cylinder block structure of a rotary engine, characterized by comprising: the cylinder body comprises a cylinder body (10) and a stator (20), wherein the stator (20) is arranged in the cylinder body (10), and the peripheral wall of the stator (20) is fixedly connected with the side wall of the cylinder body (10); the interior of the stator (20) is provided with at least three chambers (210) which are connected in sequence and provided with arc-shaped side walls, and the joint of two adjacent chambers (210) is provided with a sealing sheet mounting groove (211); the sealing sheet mounting groove (211) is used for mounting a sealing sheet to abut against the side wall of a rotor engine and hermetically separates each chamber (210);

the peripheral wall of the cylinder body (10) is provided with a plurality of first through holes (101), and the first through holes (101) are communicated with the sealing sheet mounting groove (211); at least one first through hole (101) of the plurality of first through holes (101) is used for providing a lubricating oil channel for conveying lubricating oil between the sealing sheet and the side wall of the rotor.

2. The block structure of the rotary engine according to claim 1, wherein the seal piece mounting groove (211) penetrates through both surfaces of the stator (20) which are axially opposed; and the sealing sheet mounting groove (211) is communicated with an engine oil hole on an alloy inclined cover of the rotary engine.

3. The block structure of the rotary engine according to claim 2, wherein the plurality of first through holes (101) are arranged at intervals along the axial direction of the block body (10), and a compression spring is arranged in at least one first through hole (101) of the plurality of first through holes (101), and one end of the compression spring is used for abutting against one end surface of the sealing sheet so as to abut against the side wall of the rotor.

4. A block structure of a rotary engine according to any one of claims 1 to 3, wherein the number of the first through holes (101) is 6 to 8, and wherein at least two of the first through holes (101) are provided for the lubricating oil passage.

5. The block structure of the rotary engine according to claim 4, wherein the block body (10) is further provided with a second through hole (102), and the second through hole (102) penetrates through two end faces of the block body (10) in the axial direction; the second through hole (102) is used for being communicated with a cooling liquid circulating port on the rotor engine outer deflector cover assembly.

6. The block structure of a rotary engine according to claim 5, wherein the second through-holes (102) are plural, and the plural second through-holes (102) are arranged at intervals around the circumferential direction of the block body (10).

7. The rotary engine block structure according to claim 6, wherein the end face of the block body (10) is provided with a first annular groove (103), the first annular groove (103) being coaxial with the block body (10); the first annular groove (103) is positioned on the inner side of the second through hole (102) along the radial direction of the cylinder body (10); the first annular groove (103) is used for installing a first sealing ring.

8. The rotary engine block structure according to claim 7, wherein the end face of the block body (10) is further provided with a second annular groove (104), the second annular groove (104) being coaxial with the block body (10); the second annular groove (104) is located on the inner side of the second through hole (102) in the radial direction of the cylinder body (10); the second annular groove (104) is used for installing a second sealing ring.

9. The block structure of a rotary engine according to claim 1, wherein a side wall of the chamber (210) has a recess (212), a bottom wall of the recess (212) communicating with an outside of the block body (10), the recess (212) being for interposing a spark plug.

10. A rotary engine characterized by comprising a block structure of the rotary engine according to any one of claims 1 to 9.