CN217481407U

CN217481407U - Timing cavity oil return structure of engine for motorcycle and engine for motorcycle

Info

Publication number: CN217481407U
Application number: CN202221457195.9U
Authority: CN
Inventors: 邹科; 王凯; 王义夫; 马京卫
Original assignee: Great Wall Motor Co Ltd
Current assignee: Great Wall Motor Co Ltd
Priority date: 2022-06-09
Filing date: 2022-06-09
Publication date: 2022-09-23
Anticipated expiration: 2032-06-09

Abstract

The utility model provides a timing chamber oil return structure of engine for motorcycle and engine for motorcycle, the utility model discloses a timing chamber oil return structure of engine for motorcycle locates the oil return opening on the cylinder body of engine including establishing the oil drain port in the timing cylinder body bottom of engine to and the oil return pipeline with oil drain port and oil return opening intercommunication. The oil outlet is communicated with the timing cylinder body, and the oil return port is communicated with the cylinder body; further, the height of the oil return port is lower than the height of the oil drain port in the height direction of the engine. The utility model discloses a positive time chamber oil return structure of engine for motorcycle sets up the oil drain port through the bottom at the cylinder body in right time, sets up the oil return opening on the cylinder body, utilizes oil return pipe intercommunication oil drain port and oil return opening, can make the interior machine oil that stores up in right time flow back to the cavity in the cylinder body fast to can improve the interior machine oil that stores up in right time too much, cause chain stirring machine oil, so that the too fast condition of machine oil intensification.

Description

Timing cavity oil return structure of engine for motorcycle and engine for motorcycle

Technical Field

The utility model relates to a motorcycle engine technical field, in particular to timing chamber oil return structure of engine for motorcycle. In addition, the utility model discloses still relate to an engine for motorcycle.

Background

The cylinder body of the motorcycle engine comprises a crank case and a piston cylinder, and the side part of the piston cylinder is provided with a timing cavity; the timing cylinder body is provided with a camshaft hole, and a timing system is arranged in the timing cavity through the camshaft hole.

Generally, an engine oil circulation oil passage is arranged in the cylinder body, engine oil enters the timing cavity from the top of the timing cavity, and the timing gear in the timing cavity is sprayed, lubricated and cooled.

The engine oil in the timing chamber is returned to the crankcase, typically through an oil passage in the cylinder block, to be circulated. When the existing motorcycle is used, a lot of engine oil can be stored at the bottom of the timing cavity, and the timing chain part in the timing cavity is soaked in the stored engine oil, so that the engine oil is stirred, the engine oil is rapidly heated, the temperature of the engine oil is increased, the integral temperature of the cylinder body is increased, and the mechanical loss is increased.

Especially, the horizontal opposed motorcycle engine is limited by arrangement, and the timing cavities in the left and right timing cylinders form relatively low points, so that engine oil is accumulated, the condition that the engine oil is stirred by a chain is serious, and the full performance of the engine performance is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a timing cavity oil return structure of an engine for a motorcycle, which is used for improving the condition that too much engine oil is stored in the timing cavity, which causes the chain to stir the engine oil, so as to heat the engine oil too fast.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a timing cavity oil return structure of an engine for a motorcycle comprises an oil discharge port arranged at the bottom of a timing cylinder body of the engine, an oil return port arranged on the cylinder body of the engine, and an oil return pipeline for communicating the oil discharge port with the oil return port; the oil outlet is communicated with the timing cylinder body, the oil return port is communicated with the cylinder body, and the height of the oil return port is lower than that of the oil outlet in the height direction of the engine.

Furthermore, the oil return port is located on the side wall of the cylinder body and is arranged close to the bottom of the cylinder body.

Further, the oil return pipeline comprises a communicating pipe; one end of the communicating pipe is provided with a first mounting disc which is communicated with the oil discharge port and fixed on the timing cylinder body; and a second mounting disc is arranged at the other end of the communicating pipe, communicated with the oil return port and fixed on the cylinder body.

Further, the first mounting plate is fixed on the timing cylinder body through bolts, and/or the second mounting plate is fixed on the cylinder body through bolts.

Further, a first insertion pipe is arranged on the first mounting plate and inserted into the oil discharge port; and/or a second inserting pipe is arranged on the second mounting disc and inserted into the oil return port.

Furthermore, the first inserting pipe and the second inserting pipe are respectively sleeved with a sealing ring.

Furthermore, the first mounting disc is a triangular flange, and the second mounting disc is a rhombic flange.

Furthermore, a part of pipe sections in the communicating pipe adopt corrugated pipes.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses a positive time chamber oil return structure of engine for motorcycle sets up the oil drain port through the bottom at the cylinder body in right time, sets up the oil return opening on the cylinder body, utilizes oil return pipe intercommunication oil drain port and oil return opening, can make the interior machine oil that stores up in right time flow back to the cavity in the cylinder body fast to can improve and store up machine oil too much because of the cavity in right time, the chain stirring machine oil that causes, so that the too fast condition of machine oil heaies up.

In addition, a first mounting disc and a second mounting disc are arranged at two ends of the communicating pipe, so that the communicating pipe can be conveniently and fixedly mounted on the timing cylinder body and the cylinder body; the first mounting disc and the second mounting disc are provided with penetrating holes, and the first mounting disc and the second mounting disc are fastened by adopting bolt threads, so that the connecting device has the characteristics of firm and reliable connecting performance and convenience in mounting and operating.

In addition, the corrugated pipe of a part of pipe sections is arranged on the communicating pipe, so that the communicating pipe can be conveniently bent and adjusted to adjust the relative position and posture of the first mounting plate and the second mounting plate, and the installation operation of the first mounting plate on the timing cylinder body and the installation operation of the second mounting plate on the cylinder body are facilitated.

Another object of the utility model is to provide an engine for motorcycle, be equipped with on the engine for motorcycle the timing chamber oil return structure of engine for motorcycle.

Furthermore, the engine for the motorcycle is a horizontally-opposed engine, the timing cylinder bodies are arranged on two opposite sides of the cylinder body, and the timing cavity oil return structures are arranged between the timing cylinder bodies on two sides and the cylinder body.

Compared with the prior art, the utility model discloses an engine for motorcycle has the technical advantage that the timing chamber oil return structure of above-mentioned engine for motorcycle possessed.

In addition, to the engine for the motorcycle of horizontal opposed formula, all set up between the timing cylinder body and the cylinder body of both sides the utility model discloses a timing chamber oil return structure of engine for motorcycle can make the quick backward flow of the machine oil that accumulates in the timing intracavity of both sides respectively to improve and store up the condition that the chain stirring machine oil that the machine oil too much caused and make machine oil heat up too fast because of the timing intracavity, help the steady operation of engine.

Drawings

The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:

fig. 1 is a schematic view of an overall structure of a timing cavity oil return structure of an engine for a motorcycle according to a first embodiment of the present invention, which is arranged on the engine;

fig. 2 is a schematic view of a disassembled structure of components related to an oil return structure of a timing cavity of an engine for a motorcycle according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of an oil return pipeline of the timing cavity oil return structure according to the first embodiment of the present invention;

fig. 4 is a front view of an engine for a motorcycle according to an embodiment of the present invention.

Description of reference numerals:

1. a cylinder body; 10. a piston cylinder; 11. an oil return port;

2. a timing cylinder; 20. a main body; 200. a timing chamber; 21. a cylinder cover; 22. an oil discharge port; 220. mounting holes;

3. an oil return conduit; 30. a communicating pipe; 300. a common pipe; 301. a bellows; 31a, a first mounting plate; 31b, a second mounting plate; 310. penetrating and installing holes; 311. a first cannula; 312. a second cannula; 32. a bolt; 33. a seal ring;

4. an exhaust pipe; 5. and an air inlet unit.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the description of the present invention, it should be noted that if terms indicating orientation or positional relationship such as "upper", "lower", "inner", "back", etc. appear, they are based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention; the appearances of the terms "first," "second," and the like, if any, are also intended to be descriptive only and not for purposes of indicating or implying relative importance.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise specifically limited. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The utility model relates to a timing chamber oil return structure of engine for motorcycle does benefit to and improves timing chamber 200 internal accumulation machine oil too much, causes chain stirring machine oil to make the condition that machine oil heaies up too fast, its one kind exemplary structure is shown in fig. 1 and fig. 2.

In general, the timing chamber oil return structure of the engine for the motorcycle includes an oil discharge port 22 provided at the bottom of a timing cylinder block 2 of the engine, an oil return port 11 provided on a cylinder block 1 of the engine, and an oil return pipe 3 communicating the oil discharge port 22 and the oil return port 11. The oil drain port 22 communicates with the timing cylinder 2, the oil return port 11 communicates with the cylinder 1, and the height of the oil return port 11 is lower than the height of the oil drain port 22 in the height direction of the engine.

Of course, the timing chamber oil return structure of the present embodiment can be provided in various engines, and the present embodiment is described by taking a horizontally opposed engine for a motorcycle as an example.

As shown in fig. 1 and 2, the cylinder block 1 is formed into a chamber including a crankcase at a lower portion and a piston cylinder 10 at a middle portion; an oil pan is positioned at the bottom of the chamber below the crankcase. The oil circulates in the engine and then returns to the oil pan. The timing cylinder 2 on both sides of the cylinder 1 comprises a main body 20 mounted on the cylinder 1 and a cylinder cover 21 covering the outside of the main body 20, the main body 20 and the cylinder cover 21 form a timing chamber 200, and timing chains are located in the timing chamber 200.

The oil drain port 22 is provided at the bottom of the main body 20 at a higher position than the oil return port 11 provided in the cylinder block 1, and has a height difference, so that the oil in the timing chamber 200 is quickly returned to the oil pan in the chamber through the oil return pipe 3. The position of the oil return port 11 can be properly adjusted on the premise of ensuring that the oil discharge port 22 and the oil return port 11 have a height difference in the height direction of the engine, and preferably, the oil return port 11 of the present embodiment is located on the side wall of the cylinder block 1 and is arranged near the bottom of the cylinder block 1; the oil return port 11 is provided on the side wall of the cylinder block 1 near the bottom, so that a sufficient height difference is formed between the oil discharge port 22 and the oil return port 11, and the oil in the timing chamber 200 is returned, thereby returning the oil to the oil pan at the bottom of the chamber.

As shown in fig. 3, the specific structure of the oil return pipe 3 and the installation form thereof can be flexibly arranged, for example, the oil return pipe 3 can be made of copper pipe, aluminum pipe, etc. and welded on the cylinder 1 and the timing cylinder 2. In this embodiment, the oil return pipe 3 includes a communication pipe 30; one end of the communicating pipe 30 is provided with a first mounting plate 31a, and the first mounting plate 31a is communicated with the oil outlet 22 and fixed on the timing cylinder 2; the other end of the communication pipe 30 is provided with a second mounting plate 31b, and the second mounting plate 31b is communicated with the oil return port 11 and fixed to the cylinder 1. The first mounting plate 31a and the second mounting plate 31b are provided at both ends of the communication pipe 30, which facilitates the mounting and fixing of the communication pipe 30 on the timing cylinder 2 and the cylinder 1.

The first mounting disc 31a and the second mounting disc 31b can adopt common flange plates, and preferably, the first mounting disc 31a adopts a triangular flange, and the second mounting disc 31b adopts a rhombic flange, so that the mounting discs are small in overall size and convenient to mount and adapt; when the mounting end faces of the oil discharge port 22 and the oil return port 11 are provided, the mounting end faces occupy a small area on the outer walls of the timing cylinder 2 and the cylinder 1, facilitating the mounting arrangement of the first mounting plate 31a on the timing cylinder 2 and the second mounting plate 31b on the cylinder 1.

The first mounting plate 31a and the second mounting plate 31b are respectively provided with one to two mounting holes 220, and the first mounting plate 31a and the second mounting plate 31b can be respectively fixed on the timing cylinder 2 and the cylinder 1 through bolts 32 penetrating through the mounting holes 220. The first mounting plate 31a and the second mounting plate 31b are provided with the penetrating holes 310, and the first mounting plate 31a and the second mounting plate 31b are fastened by bolts 32 in a threaded manner.

Further, as also shown in fig. 3, a first insertion tube 311 is provided on the first mounting plate 31a, and when the communication pipe 30 is mounted, the first insertion tube 311 is inserted into the drain port 22; the second mounting plate 31b may also be configured in the same manner, and a second insertion tube 312 is disposed thereon, and when the communication pipe 30 is mounted, the second insertion tube 312 is inserted into the oil return opening 11. Set up first intubate 311 and second intubate 312 on first mounting disc 31a and second mounting disc 31b respectively to make first intubate 311 insert in oil drain port 22, second intubate 312 inserts in oil return port 11, not only be favorable to first mounting disc 31a at oil drain port 22, and second mounting disc 31b is at the installation location of oil return port 11, and be favorable to promoting the connection steadiness between first mounting disc 31a and oil drain port 22, and between second mounting disc 31b and oil return port 11.

Based on the above arrangement, the first insertion tube 311 and the second insertion tube 312 are both sleeved with the sealing ring 33. By sleeving the sealing rings 33 on the first insertion tube 311 and the second insertion tube 312, the sealing rings 33 can be clamped between the insertion tube and the inner wall of the oil discharge (return) port or between the mounting plate and the mounting end face of the oil discharge (return) port, so that the sealing performance between the two ends of the communication pipe 30 and the oil discharge (return) port can be guaranteed.

In order to facilitate the bending adjustment of the communication pipe 30, the communication pipe 30 of this embodiment includes different pipe sections, specifically including the common pipe 300 and the corrugated pipe 301, and the different pipe sections are connected to each other to form the whole communication pipe 30. A part of the pipe section in the communication pipe 30 adopts the corrugated pipe 301, so that the bending process of the pipe section where the corrugated pipe 301 is located is facilitated, the relative position and posture of the first mounting plate 31a and the second mounting plate 31b are adjusted, and the mounting operation of the first mounting plate 31a on the timing cylinder body 2 and the mounting operation of the second mounting plate 31b on the cylinder body 1 are facilitated.

In summary, in the timing cavity oil return structure of the engine for the motorcycle of the present embodiment, the oil discharge port 22 is formed at the bottom of the timing cylinder body 2, the oil return port 11 is formed in the cylinder body 1, and the oil discharge port 22 and the oil return port 11 are communicated by the oil return pipeline 3, so that the engine oil stored in the timing cavity 200 can quickly flow back to the cavity in the cylinder body 1, and the situation that the engine oil is excessively accumulated in the timing cavity 200, which causes chain stirring engine oil, and the engine oil is excessively heated can be improved.

Example two

The utility model relates to an engine for motorcycle is equipped with the right time chamber oil return structure of the engine for motorcycle that embodiment one provided on this engine for motorcycle.

In this case, as a preferred embodiment, an exemplary configuration of the motorcycle engine of the present embodiment is shown in fig. 4, and the motorcycle engine is a horizontally opposed engine, an intake unit 5 is provided above the engine, and exhaust pipes 4 are provided on both sides of the rear portion of the engine. Timing cylinder bodies 2 are arranged on two opposite sides of the cylinder body 1, and the timing cavity oil return structures are arranged between the timing cylinder bodies 2 and the cylinder body 1 on the two sides.

In the present embodiment, for a horizontally opposed engine for a motorcycle, the timing cavity oil return structure of the engine for a motorcycle in the first embodiment is provided between the timing cylinder block 2 and the cylinder block 1 on both sides, so that engine oil stored in the timing cavities 200 on both sides can be respectively caused to quickly return, and a situation that the engine oil is stirred by a chain to increase the temperature of the engine oil too fast due to excessive engine oil stored in the timing cavities 200 is improved, which is helpful for stable operation of the engine.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a timing chamber oil return structure of engine for motorcycle which characterized in that:

the timing oil return device comprises an oil discharge port (22) arranged at the bottom of a timing cylinder body (2) of the engine, an oil return port (11) arranged on a cylinder body (1) of the engine, and an oil return pipeline (3) for communicating the oil discharge port (22) with the oil return port (11);

the oil drain port (22) is communicated with the timing cylinder body (2), the oil return port (11) is communicated with the cylinder body (1), and the height of the oil return port (11) is lower than that of the oil drain port (22) in the height direction of the engine.

2. The timing chamber oil return structure of an engine for a motorcycle according to claim 1, characterized in that:

the oil return port (11) is positioned on the side wall of the cylinder body (1) and is arranged close to the bottom of the cylinder body (1).

3. The timing chamber oil return structure of an engine for a motorcycle according to claim 1, characterized in that:

the oil return pipeline (3) comprises a communicating pipe (30);

one end of the communicating pipe (30) is provided with a first mounting disc (31a), and the first mounting disc (31a) is communicated with the oil discharge port (22) and fixed on the timing cylinder body (2);

the other end of the communicating pipe (30) is provided with a second mounting disc (31b), and the second mounting disc (31b) is communicated with the oil return port (11) and fixed on the cylinder body (1).

4. The timing chamber oil return structure of an engine for a motorcycle according to claim 3, characterized in that:

the first mounting plate (31a) is fixed to the timing cylinder (2) by means of bolts (32), and/or the second mounting plate (31b) is fixed to the cylinder (1) by means of bolts (32).

5. The timing chamber oil return structure of an engine for a motorcycle according to claim 3, characterized in that:

a first insertion pipe (311) is arranged on the first mounting plate (31a), and the first insertion pipe (311) is inserted into the oil drain port (22); and/or the presence of a gas in the gas,

a second insertion pipe (312) is arranged on the second mounting plate (31b), and the second insertion pipe (312) is inserted into the oil return opening (11).

6. The timing chamber oil return structure of an engine for a motorcycle according to claim 5, characterized in that:

the first inserting pipe (311) and the second inserting pipe (312) are sleeved with a sealing ring (33).

7. The timing chamber oil return structure of an engine for a motorcycle according to claim 3, characterized in that:

the first mounting disc (31a) adopts a triangular flange, and the second mounting disc (31b) adopts a rhombic flange.

8. The timing chamber oil return structure of an engine for a motorcycle according to any one of claims 3 to 7, characterized in that:

and a part of pipe sections in the communication pipe (30) adopt corrugated pipes (301).

9. An engine for a motorcycle, characterized in that:

the engine for the motorcycle is provided with a timing cavity oil return structure of the engine for the motorcycle as claimed in any one of claims 1 to 8.

10. An engine for a motorcycle according to claim 9, characterized in that:

the motorcycle engine is a horizontally-opposed engine, the timing cylinder body (2) is arranged on two opposite sides of the cylinder body (1), and the timing cavity oil return structure is arranged between the timing cylinder body (2) and the cylinder body (1) on two sides.