CN201180588Y

CN201180588Y - Motorcycle engine

Info

Publication number: CN201180588Y
Application number: CNU2008200978584U
Authority: CN
Inventors: 胡大杰
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-21
Filing date: 2008-03-21
Publication date: 2009-01-14
Anticipated expiration: 2018-03-21

Abstract

A motorcycle engine comprises a cylinder head and a cylinder body, and is characterized in that a cooling cavity is arranged at the radial periphery of a combustion chamber on the engine, and can be formed by clasping a groove formed on the lower end surface of the cylinder head with a corresponding groove formed on the upper end surface of the cylinder body. The motorcycle engine has the advantages of simple structure and low failure rate; and the components of the engine close to the combustion chamber can be better cooled. Therefore, a cooling dead angle is avoided; a valve seat ring, a valve guide pipe, an inlet valve, an exhaust valve and other components are effectively prevented from being ablated and deformed; the reliability of the engine operation is further enhanced, and the service life is prolonged.

Description

Motorcycle engine

Technical field

The utility model relates to technical field of engines, particularly a kind of motorcycle engine.

Background technique

Be to guarantee the normal operation of motor, must adopt the effective type of cooling to reduce heat load on each parts of motor.At present, the common motorcycle engine type of cooling is air-cooled and the water-cooled dual mode.Wherein, air-cooled is on engine cylinder head and/or cylinder block radiating fin to be set, and by natural wind or pressure wind motor is cooled off, and also has air-cooled passage is set in cylinder head and/or cylinder block, behind the introducing wind motor is cooled off; Water-cooled is in engine cylinder head and/or cylinder block cooling water chamber to be set, and utilizes cooling water that motor is cooled off.By contrast, the cooling effect of water-cooling pattern is more better.Simultaneously, the motor that wind, water-cooled one are also arranged, its cooling effect be than single water-cooled or air-cooled better again, but adopt the motor of above-mentioned three kinds of types of cooling, all there is a cooling dead angle, promptly good inadequately near the cooling effect the engine chamber radial outer periphery.This be because, cooling water chamber on the existing motor and/or cooling air cavity are adding man-hour, all be away from the lower end surface of cylinder head or the upper-end surface of cylinder block relatively, and engine chamber exactly is in the position that the cylinder head lower end surface combines with the cylinder block lower end surface, motor is near the position extreme temperatures of firing chamber, if do not cool off timely and effectively, will cause the ablation distortion of parts such as air valve seat ring, valve guide bushing and inlet and outlet door, not only can have a strong impact on the proper functioning of motor, and the rate of fault height, working life is short.

Summary of the invention

The purpose of this utility model is to provide a kind of simple in structure, motorcycle engine that rate of fault is low, it can well cool off near near the parts the firing chamber motor, avoid occurring the cooling dead angle, further improve the motor reliability of operation, prolong working life.

The purpose of this utility model is to realize that by such technological scheme it comprises cylinder head and cylinder block, it is characterized in that: the junction plane place of cylinder head and cylinder block is provided with ringwise cooling chamber.

In the utility model, cooling chamber is positioned at the radial outer periphery place of engine chamber, and near the parts the high thermal region of motor are wrapped in wherein.After injecting cooling water in the cooling chamber or introducing flow air, can effectively cool off the high hot spot on cylinder head or the cylinder block, cooling fast fully, and eliminated the cooling dead angle, prevented the ablation distortion of parts such as air valve seat ring, valve guide bushing and inlet and outlet door on the cylinder head and cylinder block upper end portion, improved the motor reliability of operation, rate of fault is low, obtains working life prolonging.

As a kind of optimal way, can a groove all be set in the lower end surface of cylinder head and the upper-end surface of cylinder block, two grooves snap together, and surround described cooling chamber, and the cooling chamber that this mode forms is very easy on technology.

Owing to adopted technique scheme, the utlity model has advantage simple in structure, that rate of fault is low, it can well cool off near near the parts the firing chamber motor, avoid occurring the cooling dead angle, effectively prevent the ablation distortion of parts such as air valve seat ring, valve guide bushing and inlet and outlet door, thereby further improve the motor reliability of operation, prolong working life.

Description of drawings

Description of drawings of the present utility model is as follows:

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the sectional view of first kind of embodiment A-A of cylinder head among Fig. 1;

Fig. 3 is the sectional view of first kind of Embodiment B-B of cylinder head among Fig. 1;

Fig. 4 is second kind of embodiment's of cylinder head a worm's eye view;

Fig. 5 is second kind of embodiment's of cylinder block a plan view;

Fig. 6 is the third embodiment's of cylinder head a worm's eye view;

Fig. 7 is the third embodiment's of cylinder block a plan view;

Fig. 8 is the sectional view of the 4th kind of embodiment of cylinder head along A-A place among Fig. 1;

Fig. 9 is the sectional view of the 4th kind of embodiment of cylinder block along B-B place among Fig. 1;

Among the figure: 1. cylinder head; 2. cylinder block; 1a, 2a. groove; 3. cooling chamber; 4. opening; 5. pipe joint.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

Shown in Fig. 1,2 and 3, motorcycle engine of the present utility model comprises cylinder head 1 and cylinder block 2, it is characterized in that: cylinder head 1 is provided with ringwise cooling chamber 3 with the junction plane place of cylinder block 2.

In the utility model, cooling chamber 3 is positioned at the radial outer periphery place of engine chamber, and near the parts the high thermal region of motor are wrapped in wherein.After injecting cooling water in the cooling chamber 3 or introducing flow air, can effectively cool off the high hot spot on cylinder head 1 or the cylinder block 2, cooling fast fully, eliminated the cooling dead angle, prevented the ablation distortion of parts such as air valve seat ring, valve guide bushing and inlet and outlet door on the cylinder head 1 and cylinder block 2 upper end portions, improved the motor reliability of operation, rate of fault is low, obtains working life prolonging.If adopt air cooling, then the source of wind can be the wind that vehicle produces when advancing, or utilizes blast device, initiatively sends into as fan; If adopt water cooling, the water in the cooling chamber 3 can be sent into cooling water tank by water pump and cool off, or cools off automatically by the boiling type water tank.

The structural type of cooling chamber 3 can have multiple, below enumerates three kinds of modes:

Embodiment 1 is shown in Fig. 3 and 4, and the lower end surface of cylinder head 1 is provided with circular groove 1a, and this circular groove 1a surrounds described cooling chamber 3 with the upper-end surface of cylinder block 2.

Embodiment 2 as illustrated in Figures 5 and 6,2 upper-end surface of cylinder block is provided with circular groove 2a, this circular groove 2a surrounds described cooling chamber 3 with the lower end surface of cylinder block 1.

Embodiment 3 all is provided with circular groove on the upper-end surface of the lower end surface of cylinder head 1 and cylinder block 2, two circular grooves snap together each other and surround described cooling chamber 3.

According to actual needs, cooling chamber 3 can also be designed to " C " shape, perhaps other any feasible shape that can effectively cool off the connection part of cylinder head and cylinder block shown in Fig. 8 and 9 except that being designed to annular.

Claims

1. a motorcycle engine comprises cylinder head (1) and cylinder block (2), it is characterized in that: cylinder head (1) is provided with ringwise cooling chamber (3) with the junction plane place of cylinder block (2).

2. motorcycle engine as claimed in claim 1 is characterized in that: the lower end surface of cylinder head (1) is provided with circular groove (1a), and this circular groove (1a) surrounds described cooling chamber (3) with the upper-end surface of cylinder block (2).

3. motorcycle engine as claimed in claim 1 is characterized in that: the upper-end surface of (2) of cylinder block is provided with circular groove (2a), and this circular groove (2a) surrounds described cooling chamber (3) with the lower end surface of cylinder block (1).

4. motorcycle engine as claimed in claim 1, it is characterized in that: the lower end surface of cylinder head (1) is provided with circular groove (1a), cylinder block (2) upper-end surface is provided with the corresponding circular groove of circular groove (1a) (2a) with cylinder head (1) upper-end surface, and two circular grooves (1a, 2a) snap together and surround described cooling chamber (3).