Water-cooling motorcycle cylinder cover and cylinder
By designing the intermediate cavity and diversion slot of the water -cooled motorcycle cylinder head, the cooling fluid is used for heat exchange to solve the problem of excessive lubricating oil temperature, improves the service life of the engine, and realizes the cycle of lubricating oil.
Patent Information
- Application Number
- CN202421326565.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-12
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-06-12
AI Technical Summary
The existing water-cooled motorcycle technology considers less about the cooling of lubricant, resulting in the lubricant temperature often reaching 110 to 120℃, affecting the service life of the engine.
Design a water -cooled motorcycle cylinder head, including the body, the first episode of the oil plate, the second episode of the oil plate, and the heat dissipation tendon, forming an intermediate cavity and a derivative slot, using the cooling fluid for heat exchange to reduce the lubricating oil temperature.
By increasing the contact area and thermal exchange efficiency of lubricating oil and the cylinder head, the temperature of the lubricating oil is effectively reduced, the service life of the engine is improved, and the cycle of lubricating oil is achieved by reflecting the flow holes.
Smart Images
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Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water cooling of motorcycle engines, in particular to a water-cooled motorcycle cylinder cover and a cylinder. Background Art
[0002] The water-cooled internal combustion engine sets water channels in the cylinder block and cylinder head. The cooling water circulates into the radiator driven by the water pump. The hot water in the radiator exchanges heat with the cold air outside, taking away a large amount of heat generated by the combustion of the internal combustion engine mixture, thereby achieving the purpose of cooling the internal combustion engine. When designing the cooling system of the water-cooled internal combustion engine, the efficiency of the cooling water channel is mainly optimized, while the cooling of the lubricating oil, which also has a heat dissipation function, is less considered. In addition, the temperature of the lubricating oil usually reaches about 110 to 120°C. Lowering the temperature of the lubricating oil is also a technical problem that technical personnel in this field need to solve urgently.
[0003] Therefore, those skilled in the art are committed to developing a water-cooled motorcycle cylinder head and a cylinder that can cool the cylinder head of a water-cooled motorcycle. Utility Model Content
[0004] In view of the above-mentioned defects of the prior art, the utility model discloses a water-cooled motorcycle cylinder head, and the technical problem to be solved is to provide a water-cooled motorcycle cylinder head and a cylinder which can cool the cylinder head of the water-cooled motorcycle.
[0005] To achieve the above-mentioned purpose, the utility model provides a water-cooled motorcycle cylinder head, including a cover body, a first oil collecting plate and a second oil collecting plate are provided on the top of the cover body, an intermediate cavity is formed between the first oil collecting plate, the second oil collecting plate and the cover body, and the intermediate cavity is located above the water channel cavity; heat dissipation ribs are provided in the intermediate cavity, a guide groove is formed between the heat dissipation ribs and the first oil collecting plate, the second oil collecting plate and the cover body, and the guide groove is connected to a reflux hole provided on the cover body.
[0006] Preferably, the first oil collecting plate and the second oil collecting plate are respectively provided with a notch, the notch is arranged at the edge of the guide groove, and the notch is used for the lubricating oil to flow back to the crankcase.
[0007] Preferably, in order to allow the lubricating oil to fully contact and exchange heat with the cylinder head aluminum alloy substrate and allow the heat of the lubricating oil to be taken away by the coolant in the water channel below, the bottom of the notch is higher than the bottom of the guide groove to prevent the lubricating oil from flowing back quickly.
[0008] Preferably, the middle cavity is integrally formed with a first boss and a second boss that are arranged obliquely opposite to each other, and the first boss and the second boss are respectively integrally extended with a first heat dissipation rib and a second heat dissipation rib, and the first heat dissipation rib and the second heat dissipation rib are arranged obliquely opposite to each other. The first heat dissipation rib and the second heat dissipation rib are used to increase the contact area between the lubricating oil and the cylinder head.
[0009] Preferably, the first boss and the second boss are respectively provided with sand cleaning process holes for cleaning the casting sand in the waterway.
[0010] Preferably, the reflux hole is arranged on a side of the cover body close to the chain cavity.
[0011] Preferably, the reflux hole is communicated with the chain cavity, and the cooled lubricating oil flows back from the reflux hole to the chain cavity and enters the crankcase.
[0012] Preferably, a heat dissipation plate is provided on one side of the cover body close to the spark plug to enhance the heat dissipation of the entire cylinder head.
[0013] The utility model also provides a water-cooled motorcycle cylinder, comprising the water-cooled motorcycle cylinder cover as described above.
[0014] The beneficial effects of the utility model are:
[0015] This patent collects the lubricating oil in the middle cavity by setting the first oil collecting plate and the second oil collecting plate, and uses the coolant in the water channel cavity on the lower side of the middle cavity to cool it and then flow out. Specifically, by designing heat dissipation ribs and guide grooves at the top of the cylinder head, that is, below the camshaft, the lubricating oil of the crankcase enters the top of the cylinder head from the internal oil channel under the action of the oil pump and then sprays out to lubricate the camshaft, rocker arm, valve and other valve mechanism parts installed in the cylinder head. Then, the lubricating oil is collected at the top of the cylinder head under the action of gravity, and the contact area is increased by the guide groove and heat dissipation ribs, so that it can fully contact and heat exchange with the aluminum alloy matrix of the cylinder head. The heat is taken away by the coolant in the water channel below, which improves the heat exchange efficiency between the high-temperature lubricating oil and the coolant in the inner cavity water channel, thereby achieving the purpose of cooling the lubricating oil and increasing the service life of the engine. The reflux hole can make the lubricating oil after the heat exchange flow back to the crankcase from the reflux hole for the next cycle. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a specific implementation method of the cylinder head of the utility model;
[0017] Figure 2 yes Figure 1 A partial enlarged schematic diagram in the middle;
[0018] Figure 3 It is a schematic diagram of the internal structure of the cylinder head of the utility model.
[0019] In the above drawings: 11, first oil collecting plate; 111, notch; 12, second oil collecting plate; 21, intermediate cavity; 22, water channel cavity; 23, chain cavity; 3, guide groove; 4, reflux hole; 51, first boss; 511, first heat dissipation rib; 512, sand cleaning process hole; 52, second boss; 521, second heat dissipation rib; 6, heat dissipation plate. DETAILED DESCRIPTION
[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific manner, and therefore cannot be understood as a limitation on the present invention. The terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0021] like Figures 1 to 3 As shown, the utility model provides a water-cooled motorcycle cylinder head, including a cover body, a first oil collecting plate 11 and a second oil collecting plate 12 are provided on the top of the cover body, an intermediate cavity 21 is formed between the first oil collecting plate 11, the second oil collecting plate 12 and the cover body, and the intermediate cavity 21 is located above the water channel cavity 22. In detail, a heat dissipation rib is provided in the intermediate cavity 21, and a guide groove 3 is formed between the heat dissipation rib and the first oil collecting plate 11, the second oil collecting plate 12 and the cover body, and the guide groove 3 is connected with a reflux hole 4 provided on the cover body. The reflux hole 4 is provided on the side of the cover body close to the chain cavity 23, and the reflux hole 4 is connected with the chain cavity 23, and the cooled lubricating oil flows back from the reflux hole 4 to the chain cavity 23 and enters the crankcase. At the same time, a heat dissipation plate 6 is provided on the side of the cover body close to the spark plug, which is used to enhance the heat dissipation of the entire cylinder head. Of course, the volume of the heat dissipation plate 6 is larger than the volume of the heat dissipation rib.
[0022] In the above embodiments, the utility model collects the lubricating oil in the middle cavity 21 by setting the first oil collecting plate 11 and the second oil collecting plate 12, and uses the coolant in the water channel cavity 22 at the lower side of the middle cavity 21 to cool the lubricating oil and then flows out. Specifically, by designing the heat dissipation ribs and the guide grooves 3 at the top of the cylinder head, that is, below the camshaft, the lubricating oil of the crankcase enters the top of the cylinder head from the internal oil channel under the action of the oil pump and then sprays out to lubricate the camshaft, rocker arm, valve and other valve mechanism parts installed in the cylinder head. Then, the lubricating oil is collected at the top of the cylinder head under the action of gravity, and the contact area is increased by the guide grooves 3 and the heat dissipation ribs, and the aluminum alloy matrix of the cylinder head is fully contacted and heat exchanged. The heat is taken away by the coolant in the water channel below, which improves the heat exchange efficiency between the high-temperature lubricating oil and the coolant in the inner cavity water channel, thereby achieving the purpose of cooling the lubricating oil and improving the service life of the engine. The reflux hole 4 can make the lubricating oil after the heat exchange flow back to the crankcase from the reflux hole 4 for the next cycle.
[0023] like Figure 2 As shown, the first oil collecting plate 11 and the second oil collecting plate 12 are respectively provided with a notch 111, which is arranged at the edge of the guide groove 3. The notch 111 is used for the lubricating oil to flow back to the crankcase, and the flow path of the lubricating oil is: guide groove 3 → notch 111 → reflux hole 4. In order to allow the lubricating oil to fully contact and heat exchange with the aluminum alloy matrix of the cylinder head, so that the heat of the lubricating oil is taken away by the coolant in the water channel below, the bottom of the notch 111 is higher than the bottom of the guide groove 3 to prevent the lubricating oil from flowing back quickly. In more detail, the first boss 51 and the second boss 52 arranged obliquely opposite to each other are integrally formed in the middle cavity 21, and the first boss 51 and the second boss 52 are respectively integrally extended with the first heat dissipation rib 511 and the second heat dissipation rib 521, and the first heat dissipation rib 511 and the second heat dissipation rib 521 are arranged obliquely opposite to each other. The first heat dissipation rib 511 and the second heat dissipation rib 521 are used to increase the contact area between the lubricating oil and the cylinder head. The first boss 51 and the second boss 52 are respectively provided with sand cleaning holes 512 for cleaning the foundry sand in the water channel.
[0024] The utility model also provides a water-cooled motorcycle cylinder, comprising the above water-cooled motorcycle cylinder cover.
[0025] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A water-cooled motorcycle cylinder head, characterized in that: The invention comprises a cover body, wherein a first oil collecting plate (11) and a second oil collecting plate (12) are provided on the top of the cover body, an intermediate cavity (21) is formed between the first oil collecting plate (11), the second oil collecting plate (12) and the cover body, and the intermediate cavity (21) is located above the water channel cavity (22); a heat dissipation rib is provided in the intermediate cavity (21), a guide groove (3) is formed between the heat dissipation rib and the first oil collecting plate (11), the second oil collecting plate (12) and the cover body, and the guide groove (3) is connected to a reflux hole (4) provided on the cover body.
2. The water-cooled motorcycle cylinder head according to claim 1, characterized in that: The first oil collecting plate (11) and the second oil collecting plate (12) are each provided with a notch (111), and the notch (111) is provided at the edge of the guide groove (3).
3. The water-cooled motorcycle cylinder head according to claim 2, characterized in that: The bottom of the notch (111) is higher than the bottom of the guide groove (3).
4. The water-cooled motorcycle cylinder head according to claim 1, characterized in that: A first boss (51) and a second boss (52) arranged obliquely opposite to each other are integrally formed in the intermediate cavity (21); a first heat dissipation rib (511) and a second heat dissipation rib (521) are integrally extended from the first boss (51) and the second boss (52) respectively; the first heat dissipation rib (511) and the second heat dissipation rib (521) are arranged obliquely opposite to each other.
5. The water-cooled motorcycle cylinder head according to claim 4, characterized in that: The first boss (51) and the second boss (52) are respectively provided with sand cleaning process holes (512).
6. The water-cooled motorcycle cylinder head according to claim 1, characterized in that: The reflux hole (4) is arranged on a side of the cover body close to the chain cavity (23).
7. The water-cooled motorcycle cylinder head according to claim 6, characterized in that: The reflux hole (4) is in communication with the chain cavity (23).
8. The water-cooled motorcycle cylinder head according to claim 7, characterized in that: A heat dissipation plate (6) is provided on one side of the cover body close to the spark plug.
9. A water-cooled motorcycle cylinder, characterized in that: It comprises a water-cooled motorcycle cylinder head as claimed in any one of claims 1 to 8.