CN217462368U

CN217462368U - Cylinder head of motorcycle engine

Info

Publication number: CN217462368U
Application number: CN202221840851.3U
Authority: CN
Inventors: 李飞龙; 李小波
Original assignee: Chongqing Zongshen Engine Manufacturing Co Ltd
Current assignee: Chongqing Zongshen Engine Manufacturing Co Ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-09-20
Anticipated expiration: 2032-07-18

Abstract

The utility model discloses a motorcycle engine cylinder head, including the cylinder head body, be provided with intake duct, exhaust passage on the cylinder head body and be used for being connected the complex with the engine cylinder body and be connected the face, one side of the open end of intake duct is sunken to be set up towards the inside of cylinder head body, makes to be located the intake duct installation cavity of formation on the extending direction of the open end of intake duct on the cylinder head body. The scheme solves the problem that the cylinder head is customized and developed according to the motorcycle frame in the prior art, so that the universality of the cylinder head is very low and the cylinder head is difficult to popularize in other motorcycle types.

Description

Cylinder head of motorcycle engine

Technical Field

The utility model relates to a motorcycle engine specifically is a motorcycle engine cylinder head.

Background

The cylinder head of the motorcycle engine is a structural member which seals a cylinder of the engine and forms a space required by fuel combustion, and is provided with an air inlet channel, an air exhaust channel, an air inlet and exhaust valve seat hole, a spark plug mounting hole, a lubricating oil channel, a connecting surface which is connected and matched with an engine cylinder body and the like. The air inlet opening and the air outlet opening on the cylinder head are generally positioned at the edge of the projection outline of the cylinder head along the direction vertical to the connecting surface, and the end surface of the opening is basically parallel to a reference plane of the cylinder head where the opening is positioned. The surface of the cylinder head is not a flat surface generally due to the arrangement of a radiating fin and the like, but the surface of the cylinder head can be regarded as formed by removing partial materials on the basis of a certain plane beyond the interior of the cylinder head, and then the certain plane serving as the basis is a reference plane of the surface of the cylinder head.

The cylinder head is generally designed according to the frame of the motorcycle to be used in particular, to adapt to the installation space on the frame, in particular to the installation space of the intake pipe connected to the intake duct on the frame. Therefore, the cylinder head of the motorcycle engine can only be suitable for one type of motorcycle, the production of the cylinder head is restricted by the motorcycle type, and the cylinder head can only be produced in a customized mode according to the motorcycle type, so that the universality of the cylinder head is very low, and the cylinder head is difficult to popularize in other motorcycle types.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a motorcycle engine cylinder head to solve prior art cylinder head and need follow motorcycle frame customization development, lead to the commonality of cylinder head very low, and be difficult to popularize the problem of other motorcycle types.

In order to achieve the above object, the utility model discloses a basic scheme provides a motorcycle engine cylinder head, including the cylinder head body, be provided with intake duct, exhaust passage on the cylinder head body and be used for being connected the complex with the engine cylinder body and be connected the face, one side of the open end of intake duct forms the admission line installation cavity towards the sunken setting in inside of cylinder head body on the extending direction of the open end that makes to lie in the intake duct on the cylinder head body.

The beneficial effect of this basic scheme lies in: by adopting the arrangement, the open end of the air inlet channel of the cylinder head body has more spaces for adapting to air inlet pipelines of different types, thereby reducing the requirement of the open end of the air inlet channel on the frame of the motorcycle, further enabling the cylinder head to adapt to the frames of motorcycles of various different types, avoiding the customized production of the cylinder head, being beneficial to improving the universality of the cylinder head, and facilitating the popularization of the cylinder head to other motorcycle types.

Furthermore, one side of the open end of the air inlet channel, which is far away from the plane where the connecting surface is located, is recessed towards the inside of the cylinder head body. By adopting the arrangement, after the air inlet pipeline is connected with the opening of the air inlet channel, air inlet is smoother, and the adaptability of the cylinder head to the motorcycle frame is further improved, so that the universality of the cylinder head is enhanced.

Furthermore, all cross sections in the air inlet channel are arranged in a smooth transition mode. By adopting the arrangement, the flow resistance of the air flow in the air inlet channel is favorably reduced, so that the air inlet efficiency is improved, and the power of the engine is further improved.

Furthermore, a combustion chamber communicated with the air inlet channel and the exhaust channel is arranged on one side, close to the interior of the cylinder head body, of the connection surface on the cylinder head body, the combustion chamber and the connection surface are in circular arc transition, and two air inlet valve seat holes and two air outlet valve seat holes are respectively arranged on one side, far away from the connection surface, of the combustion chamber. By adopting the arrangement, compared with the prior art, the combustion chamber has the advantages of more compact shape and smaller surface area, and is beneficial to improving the heat efficiency of the cylinder head, thereby increasing the power of the engine.

Drawings

FIG. 1 is a schematic view of an embodiment of a cylinder head of a motorcycle engine according to the present invention;

fig. 2 is a bottom view of fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: the combustion chamber comprises an air inlet channel 1, an opening end 11, a combustion chamber 2, an air exhaust channel 3, an air inlet pipeline installation cavity 4, an exhaust valve seat hole 5, an air inlet valve seat hole 6 and a connecting surface 7.

The embodiment is basically as shown in the attached figures 1 and 2: a cylinder head of a motorcycle engine comprises a cylinder head body, wherein an air inlet channel 1, an air exhaust channel 3 and a connecting surface 7 used for being connected and matched with an engine cylinder body are arranged on the cylinder head body. One side of the open end 11 of intake duct 1 is sunken to be set up towards the inside of cylinder head body, make and form intake duct installation cavity 4 on the extending direction that is located the open end 11 of intake duct 1 on the cylinder head body, the open end 11 of preferred intake duct 1 in this embodiment is kept away from the inside sunken setting of connecting the planar one side of face 7 place towards the cylinder head body, thereby make the intake duct installation cavity 4 of adjacent lateral part formation right angle shape on the terminal surface of the open end 11 of intake duct 1 and the cylinder head body, thereby make the length of intake duct 1 shorten and the crookedness reduces, be favorable to making the gas flow of intake duct 1 more smooth and easy. And each section in the air inlet channel 1 is arranged in a smooth transition mode, so that the resistance of the air inlet channel 1 to the flow of the air is further reduced.

One side of the cylinder head body, which is located in the cylinder head body and is close to the interior of the cylinder head body, of the connecting surface 7 is provided with a combustion chamber 2 communicated with the air inlet channel 1 and the exhaust channel 3, the combustion chamber 2 and the connecting surface 7 are in circular arc transition, and the intersection line of the combustion chamber 2 and the connecting surface 7 is a rectangle with a corner being an arc line. Two inlet valve seat holes 6 and two exhaust valve seat holes 5 are respectively arranged on one side of the combustion chamber 2 far away from the connecting surface 7, and the inlet valve seat holes 6 and the exhaust valve seat holes 5 are obliquely arranged relative to the connecting surface 7, so that the combustion chamber 2 forms a space with an approximately triangular section.

The specific implementation process is as follows: the cylinder head is connected to an engine of a motorcycle, the engine is installed on a frame of the motorcycle, and an open end 11 of an air inlet channel 1 of the cylinder head body can form a vacancy with a large space between the cylinder head body and the frame of the motorcycle due to the existence of an air inlet pipeline installation cavity 4, so that the cylinder head can be installed and connected with air inlet pipelines on various types of motorcycle frames, the universality of the cylinder head is improved, and the cylinder head can adapt to different types of motorcycle frames.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent.

Claims

1. The utility model provides a motorcycle engine cylinder head, includes the cylinder head body, be provided with intake duct, exhaust passage on the cylinder head body and be used for being connected the complex with the engine cylinder body and be connected face, its characterized in that: one side of the opening end of the air inlet channel is arranged towards the inner part of the cylinder head body in a concave mode, and an air inlet pipeline installation cavity is formed in the cylinder head body in the extending direction of the opening end of the air inlet channel.

2. A motorcycle engine cylinder head according to claim 1, characterized in that: the open end of the air inlet channel is far away from one side of the plane where the connecting surface is located and is arranged towards the interior of the cylinder head body in a concave mode.

3. A motorcycle engine cylinder head according to claim 1 or 2, characterized in that: and all the sections in the air inlet channel are arranged in a smooth transition mode.

4. A motorcycle engine cylinder head according to claim 3, characterized in that: the cylinder head comprises a cylinder head body and is characterized in that a combustion chamber communicated with an air inlet channel and an air exhaust channel is arranged on one side, close to the interior of the cylinder head body, of a connecting surface on the cylinder head body, the combustion chamber and the connecting surface are in circular arc transition, and two air inlet valve seat holes and two air exhaust valve seat holes are formed in one side, far away from the connecting surface, of the combustion chamber respectively.