CN203892036U - Cooling oil flow guide structure of gasoline engine cylinder head - Google Patents
Cooling oil flow guide structure of gasoline engine cylinder head Download PDFInfo
- Publication number
- CN203892036U CN203892036U CN201420321954.8U CN201420321954U CN203892036U CN 203892036 U CN203892036 U CN 203892036U CN 201420321954 U CN201420321954 U CN 201420321954U CN 203892036 U CN203892036 U CN 203892036U
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- Prior art keywords
- cylinder head
- exhaust valve
- flow guide
- cooling oil
- guide plate
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- Lubrication Of Internal Combustion Engines (AREA)
Abstract
The utility model discloses a cooling oil flow guide structure of a gasoline engine cylinder head. The cooling oil flow guide structure comprises a cylinder head body, an exhaust valve, an air inlet valve and a cooling oil hole are formed in the cylinder head body, the cooling oil hole is close to the air inlet valve, a flow guide plate is arranged on the cooling oil hole of the cylinder head body, the flow guide plate forms a flow guide channel extending in the direction of the exhaust valve, or a flow guide channel extending in the direction the exhaust valve is formed between the flow guide plate and the inner wall of the cylinder head, the flow guide channel is communicated with the cooling oil hole, and part of engine oil flowing out of the cooling oil hole flows to the exhaust valve through the flow guide channel. The flow guide plate is added to the cooling oil hole of the cylinder head body, the engine oil flowing out of the cooling oil hole is guided to the exhaust valve through the flow guide plate, the temperature of the exhaust valve is effectively reduced, and therefore carbon deposition generated by the exhaust valve is reduced, and the reliability of the exhaust valve is improved.
Description
Technical field
The utility model belongs to technology of gasoline engine field, particularly relates to a kind of cold oil flow guide structure of petrol engine cylinder head.
Background technique
Petrol engine is a kind of dynamic power machine using gasoline for the fuel, it is mainly by cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition system etc. partly form, wherein, the cylinder head of petrol engine is provided with gas-entered passageway and exhaust passage, dispose accordingly intake valve and exhaust valve, firing chamber face and the cylinder of cylinder head inner side form firing chamber jointly, during work, intake valve on cylinder head is opened, fuel enters firing chamber, with air mixed combustion, the heat that burning produces makes volume expansion, thereby the piston movement in promotion cylinder, thereby piston drives crank rotation output mechanical energy by connecting rod.
The intake valve of petrol engine cylinder head and the temperature of exhaust valve are higher, therefore need to it, carry out cooling with cooling machine oil.Conventionally, the intake valve place of petrol engine cylinder head has oil channel hole, cooling machine oil after atomization flows to intake valve and the exhaust valve of cylinder head by this oil channel hole, but due to the position of oil channel hole near intake valve, therefore only have small part cooling machine oil can flow to exhaust valve (especially when petrol engine just starts or initial start stage, cooling machine oil underpressure, the cooling machine oil flowing out from oil channel hole seldom), so just cause the Cooling and Lubricator weak effect to exhaust valve, the temperature of exhaust valve is higher, and the higher meeting of temperature changes cooling machine oil, thereby formation carbon distribution, the carbon distribution forming can cause exhaust valve to be stuck, thereby affected the reliability of exhaust valve.
Model utility content
For the deficiencies in the prior art, the purpose of this utility model is to solve temperature because of exhaust valve compared with the high problems such as exhaust valve is easily stuck, poor reliability that cause, a kind of cold oil flow guide structure of petrol engine cylinder head is provided, this flow guide structure can be by the cooling machine oil water conservancy diversion of intake valve to exhaust valve, effectively reduce the temperature of exhaust valve, thereby reduce the carbon distribution that exhaust valve produces, improve the reliability of exhaust valve.
In order to solve the problems of the technologies described above, the utility model has adopted following technological scheme:
A kind of cold oil flow guide structure of petrol engine cylinder head, comprise cylinder head body, on described cylinder head body, be provided with exhaust valve, intake valve and cooling oilhole, described cooling oilhole is near intake valve, cooling oilhole place at cylinder head body is provided with guide plate, described guide plate self forms a guide channel extending towards exhaust valve direction, or between guide plate and cylinder head inwall, form a guide channel extending towards exhaust valve direction, guide channel is communicated with cooling oilhole, and the part machine oil flowing out from cooling oilhole flows to exhaust valve by guide channel.
Further, the top of described guide plate has the cover plate for the top of guide channel is covered.
Further, the bottom of described guide plate has base plate, and this base plate passes through the spring compression of intake valve in cylinder head body.
The beneficial effects of the utility model are:
1, the utility model has increased guide plate at the cooling oilhole place of cylinder head body, guide plate self forms a guide channel extending towards exhaust valve direction, or between guide plate and cylinder head inwall, form a guide channel extending towards exhaust valve direction, guide channel is communicated with cooling oilhole, and the part machine oil flowing out from cooling oilhole flows to exhaust valve by guide channel.Adopt this kind of design effectively to reduce the temperature of exhaust valve by cooling machine oil water conservancy diversion to exhaust valve, thereby reduce the carbon distribution that exhaust valve produces, improve the reliability of exhaust valve.
2, the utility model does not need to change the original structure of cylinder head, only need in cylinder head, increase a guide plate, and it is simple in structure, is easy to apply.
accompanying drawing explanation
Fig. 1 is the plan view of the utility model petrol engine cylinder head;
Fig. 2 is the C-C sectional drawing of Fig. 1;
Fig. 3 is the plan view of the utility model petrol engine cylinder head;
Fig. 4 is the A-A sectional drawing of Fig. 3;
Fig. 5 is the stereogram of the utility model guide plate;
Fig. 6 is the stereogram of the utility model intake valve and exhaust valve.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
Referring to Fig. 1 to Fig. 6, cylinder head is the vitals of petrol engine, on cylinder head, be provided with gas-entered passageway 11 and exhaust passage 12, accordingly, interior intake valve and the exhaust valve of disposing respectively in gas-entered passageway 11 and exhaust passage 12, firing chamber face and the cylinder of cylinder head bottom form firing chamber jointly, the top of firing chamber has the suction port being communicated with gas-entered passageway 11 and the relief opening being communicated with exhaust passage 12, conventionally, intake valve and exhaust valve are all by air valve shaft, spring 3 and rubber stopper form, rubber stopper is arranged on the lower end of air valve shaft, for blocking suction port or the relief opening of top of combustion chamber.During work, push rod promotes an end motion of rocking arm, thereby the other end of rocking arm swings drive thereupon, air valve shaft moves downward, now spring 3 compressions, and rubber stopper is thrown off opens intake valve or exhaust valve; When needs are closed intake valve or exhaust valve, spring 3 resets, and air valve shaft moves upward under the effect of the rebounding force of spring 3, and now rubber stopper is blocked suction port or relief opening.
The cold oil flow guide structure of petrol engine cylinder head of the present utility model, comprise cylinder head body 1, on cylinder head body 1, be provided with gas-entered passageway 11, exhaust passage 12 and cooling oilhole 13, interior intake valve and the exhaust valve of disposing respectively in gas-entered passageway 11 and exhaust passage 12, cooling oilhole 13 is near intake valve.Cooling oilhole 13 places at cylinder head body 1 are provided with guide plate 2, guide plate 2 self forms a guide channel extending towards exhaust valve direction, or between guide plate 2 and cylinder head inwall, form a guide channel extending towards exhaust valve direction, guide channel is communicated with cooling oilhole 13, and the part machine oil flowing out from cooling oilhole 13 flows to exhaust valve by guide channel.Adopt this kind of design effectively to reduce the temperature of exhaust valve by cooling machine oil water conservancy diversion to exhaust valve, thereby reduce the carbon distribution that exhaust valve produces, improve the reliability of exhaust valve.
As preferably, the top of guide plate 2 has the cover plate 2a for the top of guide channel is covered, cover plate 2a spreads from the top of guide channel for preventing the cooling machine oil after atomization, is more conducive to cooling machine oil and flows to exhaust valve, has improved the water conservancy diversion effect of guide plate 2.
As preferably, the bottom of guide plate 2 has ring base plate 2b, base plate 2b is sleeved on the air valve shaft of intake valve, and be pressed in cylinder head 1 by the spring 3 of intake valve, be that guide plate 2 is directly pressed in cylinder head 1 by the spring 3 of intake valve, do not need to design other mounting structure, easy for installation.
Finally it should be noted that, above embodiment is only in order to the technical solution of the utility model to be described but not restriction technologies scheme, although claimant has been described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, those are modified to the technical solution of the utility model or are equal to replacement, and do not depart from aim and the scope of the technical program, all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. the cold oil flow guide structure of a petrol engine cylinder head, comprise cylinder head body, on described cylinder head body, be provided with exhaust valve, intake valve and cooling oilhole, described cooling oilhole is near intake valve, it is characterized in that, cooling oilhole place at cylinder head body is provided with guide plate, described guide plate self forms a guide channel extending towards exhaust valve direction, or between guide plate and cylinder head inwall, form a guide channel extending towards exhaust valve direction, guide channel is communicated with cooling oilhole, the part machine oil flowing out from cooling oilhole flows to exhaust valve by guide channel.
2. the cold oil flow guide structure of petrol engine cylinder head according to claim 1, is characterized in that, the top of described guide plate has the cover plate for the top of guide channel is covered.
3. the cold oil flow guide structure of petrol engine cylinder head according to claim 1, is characterized in that, the bottom of described guide plate has base plate, and this base plate passes through the spring compression of intake valve in cylinder head body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321954.8U CN203892036U (en) | 2014-06-17 | 2014-06-17 | Cooling oil flow guide structure of gasoline engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420321954.8U CN203892036U (en) | 2014-06-17 | 2014-06-17 | Cooling oil flow guide structure of gasoline engine cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203892036U true CN203892036U (en) | 2014-10-22 |
Family
ID=51718450
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420321954.8U Active CN203892036U (en) | 2014-06-17 | 2014-06-17 | Cooling oil flow guide structure of gasoline engine cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203892036U (en) |
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2014
- 2014-06-17 CN CN201420321954.8U patent/CN203892036U/en active Active
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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: CHONGQING WEIMA AGRICULTURAL MACHINERY CO., LTD. Free format text: FORMER OWNER: CHONGQING WEIMA POWER MACHINE CO., LTD. Effective date: 20150713 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150713 Address after: 402283 Chongqing city Jiangjin Luohuang Industrial Park B District Patentee after: Chongqing Weima Agricultural Machinery Co., Ltd. Address before: 402283 Chongqing city Jiangjin Luohuang Industrial Park B District Yuyang Road No. 3 Patentee before: CHONGQING WEIMA POWER MACHINE CO., LTD. |
|
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 402283 Chongqing city Jiangjin Luohuang Industrial Park B District Patentee after: WEIMA AGRICULTURAL MACHINERY CO., LTD. Address before: 402283 Chongqing city Jiangjin Luohuang Industrial Park B District Patentee before: Chongqing Weima Agricultural Machinery Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 402283 Chongqing city Jiangjin Luohuang Industrial Park B District Patentee after: Weima agricultural Limited by Share Ltd Address before: 402283 Chongqing city Jiangjin Luohuang Industrial Park B District Patentee before: WEIMA AGRICULTURAL MACHINERY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |