Water-cooling motorcycle engine cylinder head

Abstract

The utility model relates to the technical field of motorcycle engines, and discloses a water-cooling motorcycle engine cylinder head which comprises a cylinder head body, an air inlet, an air outlet, a cooling water inlet and a cooling water outlet, and the cooling water outlet is located above the air outlet. The cooling water outlet is communicated with a water outlet pipeline, and the water outlet pipeline surrounds the exhaust port. The engine cylinder head is good in cooling effect and compact in structure.

Description

TECHNICAL FIELD

[0001] The utility model relates to water -cooled motorcycle engine cylinder head technical field, concretely relates to a water -cooled motorcycle engine cylinder head. BACKGROUND

[0002] At present, the market demand for the cooling effect of motorcycle is more and more big, and then puts forward more strict requirement to the design of engine. For double cam motorcycle engine, cylinder head is the key of design, it bears most parts of valve train mechanism, and also needs to ensure the function of exhaust.

[0003] Chinese patent document CN220134071U discloses a double cam motorcycle engine cylinder head, including cylinder head body, camshaft support, exhaust port and intake port, the camshaft support is located in the upper end surface of the cylinder head body, the camshaft support is equipped with exhaust camshaft hole and intake camshaft hole, the exhaust port and intake port are located at the left and right sides of the cylinder head body respectively, the upper end surface of the cylinder head body is inclined to the lower end surface, the exhaust camshaft hole and intake camshaft hole are located at different heights, the intake port is in the structure of flat mouth, the cooling water outlet is arranged above the exhaust port, and the lower end surface of the cylinder head body is provided with a cooling water inlet.

[0004] The prior art has the following disadvantages: the cooling effect of the cooling water in the engine cylinder head is not good, the overheating of the cylinder head causes the lubricating oil flowing to the valve train mechanism to fail, resulting in damage and damage of the engine. UTILITY MODEL CONTENTS

[0005] The utility model discloses a water -cooled motorcycle engine cylinder head to solve the problem of the cooling effect of engine cylinder head, including cylinder head body, intake port, exhaust port, cooling water inlet and cooling water outlet, the cooling water outlet is located above the exhaust port, and its characterized in that, the cooling water outlet is connected with the outlet pipe line, and the outlet pipe line surrounds the exhaust port.

[0006] Preferably, the outlet pipe line is connected with the annular pipe line at the bottom of the cylinder head body, and the annular pipe line is connected with the cooling water inlet.

[0007] In order to facilitate heat dissipation, the bottom of the cylinder head body is a combustion chamber, and the annular pipe line surrounds the combustion chamber.

[0008] Preferably, the cooling water outlet is arranged obliquely above the exhaust port.

[0009] In order to facilitate the measurement of water temperature, the temperature sensing hole for installing temperature measuring equipment is arranged on the cylinder head body.

[0010] In order to facilitate accurate measurement of water temperature, the temperature sensing hole is connected with the annular pipe line.

[0011] Preferably, a plurality of the cooling water inlets are arranged around the combustion chamber, and the cooling water inlets are connected to the annular pipeline simultaneously.

[0012] Preferably, the plurality of the cooling water inlets are evenly arranged around the combustion chamber.

[0013] The utility model has the advantages of:

[0014] 1. The annular cooling water outlet is arranged around the exhaust port, which can improve the cooling efficiency of the cooling water, avoid the problem of oil failure caused by excessive temperature in the engine, and does not increase the volume of the cylinder head, so that the cooling system structure of the double-cylinder water-cooled engine is relatively compact, can withstand greater strengthening, provides greater flexibility for motorcycle design, and the cooling water temperature sensing hole is arranged in a region with uniform temperature of the cylinder head body, so that the inaccuracy of the detected data caused by poor arrangement of the cooling water sensing hole position is reduced.

[0015] 2. Improve engine performance and service life: prevent engine overheating, so as to keep the engine in the best working condition, and good cooling effect helps to reduce the heat exhaustion phenomenon and prolong the service life of the engine. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic view of the utility model water-cooled motorcycle engine cylinder head embodiment;

[0017] Figure 2 It is a bottom view; Figure 1

[0018] Figure 3 It is a flow path schematic view of cooling water;

[0019] Figure 4 It is a top view. Figure 3 DETAILED DESCRIPTION

[0020] The following will be further described in detail through specific embodiments:

[0021] The reference signs in the drawings of the specification include: cylinder head body 1, air inlet 2, exhaust port 3, cooling water inlet 4, cooling water outlet 5, combustion chamber 6, water outlet pipeline 7, annular pipeline 8, temperature sensing hole 9.

[0022] Embodiment 1

[0023] As Figures 1-4 ​​As shown, a water-cooled motorcycle engine cylinder head, including cylinder head body 1, air inlet 2, exhaust port 3, cooling water inlet 4 and cooling water outlet 5, the bottom of the cylinder head body 1 is the combustion chamber 6, the cooling water outlet 5 and the cooling water inlet 4 are oppositely arranged on both sides of the cylinder head body 1, the cooling water outlet 5 is located above the exhaust port 3, the cooling water outlet 5 is connected with the outlet pipe 7, and the outlet pipe 7 is arranged around the exhaust port 3.

[0024] The outlet pipe 7 is connected with the annular pipe 8 at the bottom of the cylinder head body 1, the annular pipe 8 is arranged around the combustion chamber 6, and the annular pipe 8 is connected with the cooling water inlet 4 with the opening downward.

[0025] The opening of the cooling water outlet 5 is obliquely arranged above the exhaust port 3.

[0026] The temperature sensing hole 9 for installing temperature measuring equipment is arranged on the cylinder head body 1.

[0027] The temperature sensing hole 9 is connected with the annular pipe 8, the annular pipe 8 is a region with uniform temperature, and the data detected by the sensor of the temperature measuring equipment is more accurate.

[0028] Eight cooling water inlets 4 are arranged around the combustion chamber 6, and the cooling water inlets 4 are connected with the annular pipe 8 at the same time.

[0029] Eight cooling water inlets 4 are uniformly arranged around the combustion chamber 6.

[0030] The annular cooling water outlet 5 is arranged around the exhaust port 3, which can improve the cooling efficiency of the cooling water, avoid the problem of oil failure caused by the high temperature inside the engine, and does not increase the volume of the cylinder head, the cooling system structure of the water-cooled engine is relatively compact, can withstand a greater degree of strengthening, and provides greater flexibility for motorcycle design.

[0031] The above-mentioned is only the embodiment of the present application, and the common knowledge of the specific structure and characteristics in the scheme is not described in detail, the ordinary skilled person in the art knows all the ordinary technical knowledge in the technical field of the present application before the application date or the priority date, can know all the prior art in the field, and has the ability to apply the conventional experimental means before the date, the ordinary skilled person in the art can improve and implement the present scheme under the enlightenment given in the present application, and some typical known structures or known methods should not become an obstacle for the ordinary skilled person in the art to implement the present application. It should be pointed out that for the skilled person in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, which will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A water-cooled motorcycle engine cylinder head comprising a cylinder head body, an air intake port, an exhaust port, a cooling water inlet port, and a cooling water outlet port, the cooling water outlet port being located above the exhaust port, characterized by, The cooling water outlet is communicated with an outlet pipeline, and the outlet pipeline is arranged around the exhaust port.

2. A water-cooled motorcycle engine cylinder head according to claim 1, characterised in that: The outlet pipeline is communicated with an annular pipeline at the bottom of the cylinder head body, and the annular pipeline is communicated with the cooling water inlet.

3. A water-cooled motorcycle engine cylinder head according to claim 2, characterised in that: The bottom of the cylinder head body is a combustion chamber, and the annular pipeline is arranged around the combustion chamber.

4. A water-cooled motorcycle engine cylinder head according to claim 3, characterised in that: The cooling water outlet is obliquely arranged above the exhaust port.

5. A water-cooled motorcycle engine cylinder head according to claim 4, characterised in that: A temperature sensing hole for installing a temperature measuring device is arranged on the cylinder head body.

6. A water-cooled motorcycle engine cylinder head according to claim 5, characterised in that: The temperature sensing hole is communicated with the annular pipeline.

7. A water-cooled motorcycle engine cylinder head according to claim 6, characterised in that: The bottom of the cylinder head body is a combustion chamber, and a plurality of cooling water inlets are arranged around the combustion chamber, and the cooling water inlets are simultaneously communicated with the annular pipeline.

8. A water-cooled motorcycle engine cylinder head according to claim 7, characterised in that: The plurality of cooling water inlets are uniformly arranged around the combustion chamber.

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