CN2665370Y - Small-sized petrol engine with engine oil cooled cylinder head - Google Patents
Small-sized petrol engine with engine oil cooled cylinder head Download PDFInfo
- Publication number
- CN2665370Y CN2665370Y CN 200320125903 CN200320125903U CN2665370Y CN 2665370 Y CN2665370 Y CN 2665370Y CN 200320125903 CN200320125903 CN 200320125903 CN 200320125903 U CN200320125903 U CN 200320125903U CN 2665370 Y CN2665370 Y CN 2665370Y
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- CN
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- Prior art keywords
- cylinder head
- engine
- oil
- cooled
- head cover
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a small-sized petrol engine with engine oil cooled a cylinder head, which has following technical proposal: a cylinder head is connected with a cylinder head cover, an oil channel and a blast chamber which supply the oil to the cylinder head cover are arranged in the cylinder head cover, and a valve lever bracket is arranged on the cylinder head cover. The small-sized petrol engine is characterized in that a nozzle opening is arranged on the inner side of the oil channel, and an oil storage wall is arranged on the blast chamber back side which is opposite to a spark plug. Two draining holes are arranged on the oil storage wall. The utility model can solve the problem of the exorbitant cylinder-head cover temperature when the air-cooled engine is at a slow speed and big load so as to realize the cooling effect which is approximate to that of the water-cooled engine to improve the engine horsepower, the moment of torque and the dependability effectively.
Description
Technical field
The utility model relates to a kind of mini four-stroke gasoline engine, in particular, relates to the cylinder head that a kind of motorcycle uses and adopts oil-cooled miniature gasoline engine.
Background technique
In internal-combustion engine, relatively harsher on the operating conditions of cylinder head, it will bear the effect of combusted gas generant High Temperature High Pressure.How having cooled off cylinder head, prevented that the cylinder head temperature is too high and the even generation of temperature distributing disproportionation thermal stress is excessive, is a very crucial problem.In motorcycle engine, the type of cooling of cylinder head mainly contains two kinds of air-cooled and water-cooleds.Wherein air-cooled cylinder head utilizes the multi-disc radiating fin that casts out on the cylinder head outwards to dispel the heat, and the water cooled cylinder lid then utilizes the recirculated cooling water that is positioned at cylinder head inside to take away unnecessary heat.From cooling effect, the cooling effect of water cooled cylinder lid is better, and is general, adopts the performance and the reliability of the motor of water cooled cylinder lid to be better than the motor that adopts air-cooled cylinder head.But, adopt the motor of water cooled cylinder lid to require the necessary cooling system that adopts more complicated, as: water pump, radiator, thermostat etc., simultaneously, price is also than blower cooled engine height.
The model utility content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, to provide a kind of cylinder head simple in structure, in light weight, that cooling effect is good to adopt oil-cooled miniature gasoline engine.
The utility model cylinder head adopts oil-cooled miniature gasoline engine, be achieved by following technical proposals, cylinder head is connected with valve mechanism cover, be provided with oil duct and firing chamber in the described cylinder head to the valve mechanism cover fuel feeding, described cylinder head is provided with valve lever bracket, it is characterized in that, the sidewall of described oil duct is provided with a nozzle opening, the relative side with spark plug in the back side, described firing chamber is provided with the oil storage wall, and described oil storage wall is provided with two draining holes.
Described oil storage wall thickness highly is 39～51mm greater than 5mm.Described valve lever bracket is bolted on the cylinder head by three, and middle bolt is arranged in cylinder near on the sidewall of spark plug one side.
The utility model patent is by increasing the fuel delivery of oil pump, makes a part of machine oil be sprayed onto the back side, firing chamber of cylinder head, thereby cooling air cylinder cap is better controlled its temperature.The utility model can solve air cooling engine when the big load of low speed, the problem that the cylinder head temperature is too high, and realization is similar to the cooling effect of water cooled engine, can effectively improve power, moment of torsion and the reliability of motor.Simultaneously do not need devices such as water tank, water pump again, have simple in structure, lightweight advantage.
Description of drawings
Fig. 1 is the utility model structural representation,
Fig. 2 is the B-B sectional view of the utility model structural representation,
Fig. 3 is the C-C sectional view of the utility model structural representation,
Fig. 4 is the D-D sectional view of the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Cylinder head 1 is connected with valve mechanism cover 2, be provided with oil duct 3 and firing chamber 4 in the described cylinder head 1 to valve mechanism cover 2 fuel feeding, described cylinder head is provided with valve lever bracket 5, it is characterized in that, the sidewall of described oil duct 3 is provided with a nozzle opening 6, the back side 7, described firing chamber is provided with oil storage wall 9 with spark-plug hole 8 relative sides, and described oil storage wall is provided with two draining holes 10,11.
Present embodiment adopts in cylinder head on the sidewall of the oil duct of valve mechanism cover fuel feeding and is processed with a nozzle opening 6, and machine oil sprays to the back side 7 of firing chamber by this nozzle opening 6.There is thickness at the back side, firing chamber 7 greater than 5mm with spark-plug hole 8 relative sides, highly is the oil storage wall 9 of 51mm, is processed with draining hole 10,11 on oil storage wall 9.Valve lever bracket 5 is bolted on the cylinder head by three, and wherein, middle bolt 13 is arranged in cylinder near on the sidewall of spark-plug hole 8 one sides.
In engine working process, machine oil in the oil duct 3 sprays to the back side 7 of firing chamber through nozzle opening 6 under the effect of pressure, the machine oil of ejection is with after outer wall of combustion chamber contacts, through walking by two draining orifice flows on the oil storage wall 9, thereby take away by the unnecessary heat that transmits in the firing chamber, improve the thermal stress situation of cylinder head.
Claims (3)
1. a cylinder head adopts oil-cooled miniature gasoline engine, cylinder head is connected with valve mechanism cover, be provided with oil duct and firing chamber in the described cylinder head to the valve mechanism cover fuel feeding, described cylinder head is provided with valve lever bracket, it is characterized in that, the sidewall of described oil duct is provided with a nozzle opening, and the relative side with spark plug in the back side, described firing chamber is provided with the oil storage wall, and described oil storage wall is provided with two draining holes.
2. cylinder head according to claim 1 adopts oil-cooled miniature gasoline engine, it is characterized in that, described oil storage wall thickness highly is 39～51mm greater than 5mm.
3. cylinder head according to claim 1 adopts oil-cooled miniature gasoline engine, it is characterized in that, described valve lever bracket is bolted on the cylinder head by three, and middle bolt is arranged in cylinder near on the sidewall of spark plug one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125903 CN2665370Y (en) | 2003-12-18 | 2003-12-18 | Small-sized petrol engine with engine oil cooled cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320125903 CN2665370Y (en) | 2003-12-18 | 2003-12-18 | Small-sized petrol engine with engine oil cooled cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2665370Y true CN2665370Y (en) | 2004-12-22 |
Family
ID=34349325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320125903 Expired - Fee Related CN2665370Y (en) | 2003-12-18 | 2003-12-18 | Small-sized petrol engine with engine oil cooled cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2665370Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996947A (en) * | 2018-10-29 | 2019-07-09 | 株式会社小松制作所 | Cylinder head |
-
2003
- 2003-12-18 CN CN 200320125903 patent/CN2665370Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996947A (en) * | 2018-10-29 | 2019-07-09 | 株式会社小松制作所 | Cylinder head |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINGYUE GROUP CO.,LTD. Free format text: FORMER OWNER: TIANJIN ZHAOXIA MOTORCYCLE TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20041210 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20041210 Address after: GUSHAN Industrial District of Yongkang City, Zhejiang province 310000 Patentee after: Xingyue Group Co., Ltd. Address before: 300072 Tianjin City, Nankai District Wei Jin Road No. 92 Patentee before: Zhaoxia Motorcycle Technology Development Co., Ltd., Tianjin |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041222 Termination date: 20101218 |