CN202417730U - Gasoline engine cylinder head - Google Patents
Gasoline engine cylinder head Download PDFInfo
- Publication number
- CN202417730U CN202417730U CN 201120566626 CN201120566626U CN202417730U CN 202417730 U CN202417730 U CN 202417730U CN 201120566626 CN201120566626 CN 201120566626 CN 201120566626 U CN201120566626 U CN 201120566626U CN 202417730 U CN202417730 U CN 202417730U
- Authority
- CN
- China
- Prior art keywords
- cylinder head
- gas
- exhaust
- exhaust passage
- entered passageway
- Prior art date
- 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 gasoline engine cylinder head, which comprises a cylinder head body. A combustion chamber face used for forming a combustion chamber with an air cylinder piston together is formed on the inner side the cylinder body, an air inlet channel and an air outlet channel communicated with the combustion chamber are arranged on the cylinder head body, and corners of the air inlet channel and the air outlet channel along an air flow direction have smooth transitional structures. By the smooth transitional structures of the air inlet channel and the air outlet channel at the corners along the air flow direction, air inflow resistance and air exhaust resistance are reduced to enable both the flow coefficient and the rolling flow strength to reach high levels, fuel consumption rate is reduced effectively, combustion is facilitated, discharging is reduced, and gasoline engine power is improved.
Description
Technical field
The utility model relates to a kind of power engine parts, particularly a kind of petrol engine cylinder head.
Background technique
Petrol engine is a kind of dynamic power machine that uses gasoline for the fuel.Partly form by cylinder, connecting rod, gas distribution system, oil supply system, lubrication system and ignition system etc.; Cylinder head is provided with gas-entered passageway and exhaust passage, and forms the firing chamber jointly with cylinder piston, thereby, belong to the parts of petrol engine outbalance.Gasoline act as a fuel with AIR MIXTURES in the firing chamber internal combustion, mix the back and get into combustion chambers burn through gas-entered passageway, discharge through the exhaust passage burning back, forms a work cycle.
This shows that gas-entered passageway and exhaust passage are the necessary conditions of the normal operation of petrol engine.In the existing technology; Gas-entered passageway on the petrol engine cylinder head and exhaust passage are for easily manufactured; Form comparatively anxious corner, make air inlet and exhaust form bigger resistance, this drag effects is to the flow coefficient of air flue and roll intensity of flow; And then influence the burning of motor, indexs such as petrolic power, moment of torsion, discharging are had bigger influence.And generally the resistance that produces owing to air flue can not well be solved in the existing technology, also just can not make flow coefficient and roll intensity of flow all to reach a level preferably, thereby influence petrolic efficient and discharging.
Therefore, need improve the gas-entered passageway and the exhaust passage of petrol engine cylinder head, reduce air inlet and exhaust resistance, make flow coefficient and roll intensity of flow all to reach a level preferably, be beneficial to the operational efficiency that improves petrol engine, fuel saving reduces discharging.
The model utility content
In view of this, the utility model provides a kind of petrol engine cylinder head, reduces air inlet and exhaust resistance, makes flow coefficient and roll intensity of flow all to reach a level preferably, is beneficial to the operational efficiency that improves petrol engine, and fuel saving reduces discharging.
The petrol engine cylinder head of the utility model; Comprise the cylinder head body; Cylinder head body inboard is formed for constituting jointly with cylinder piston the firing chamber face of firing chamber; Gas-entered passageway and the exhaust passage be communicated with the firing chamber are set on the said cylinder head body, and gas-entered passageway and exhaust passage are along the corner of airflow direction and seamlessly transit structure.
Further, said gas-entered passageway and exhaust passage are outward-dipping with respect to the cylinder head center line;
Further, said gas-entered passageway and exhaust passage are laterally along the corner of airflow direction that the orthodrome of protrusion seamlessly transits structure;
Further, the corresponding intake valve that is provided with gas-entered passageway on the said cylinder head body, the corresponding exhaust valve that is provided with the exhaust passage, said intake valve top is to the gas-entered passageway tilt, and the exhaust valve top is to the exhaust passage tilt;
Further, the cylinder head body is installed on 1.4L and following discharge capacity petrol engine, and the air inlet of combustion chamber that said intake valve is positioned at gas-entered passageway is provided with inlet valve seat ring, and it is 23.5mm that gas-entered passageway engages the diameter that is communicated with the place with inlet valve seat ring; The exhaust outlet of combustion chamber that exhaust valve is positioned at the exhaust passage is provided with exhaust valve seat insert, and it is 19mm that the exhaust passage engages the diameter that is communicated with the place with exhaust valve seat insert, and the diameter of exhaust passage and gas exhaust manifold connection is 19mm.
The beneficial effect of the utility model: the petrol engine cylinder head of the utility model; Gas-entered passageway and exhaust channel structure that employing seamlessly transits along the corner of airflow direction; Reduce air inlet and exhaust resistance, make flow coefficient and roll intensity of flow all to reach a level preferably, effectively reduce fuel consumption rate; Be beneficial to burning and reduce discharging, increase petrol engine power.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Fig. 1 is the structural representation of the utility model.
Embodiment
Fig. 1 is the structural representation of the utility model; As shown in the figure: the petrol engine cylinder head of present embodiment, comprise cylinder head body 1, cylinder head body 1 inboard is formed for constituting jointly with cylinder piston the firing chamber face of firing chamber 7; Belong to prior art constructions, repeat no more at this; Gas-entered passageway 2 and the exhaust passage 5 that is communicated with firing chamber 7 is set on the said cylinder head body 1; Gas-entered passageway 2 is used to be communicated between firing chamber 7 and the intake manifold; Exhaust passage 5 is used to be communicated between gas exhaust manifold and the firing chamber 7, belongs to prior art constructions, repeats no more at this; Said gas-entered passageway 2 and exhaust passage 5 are along the corner of airflow direction and seamlessly transit structure.
In the present embodiment, said gas-entered passageway 2 is outward-dipping with respect to the cylinder head center line with exhaust passage 5; Leaning structure helps the layout of gas-entered passageway 2 and exhaust passage 5 and intake valve and exhaust valve, thereby adapts to air inlet and discharge directions, is easy to form preferably flow coefficient and rolls intensity of flow.
In the present embodiment, said gas-entered passageway 2 and exhaust passage 5 are laterally along the corner of airflow direction that the orthodrome of protrusion seamlessly transits structure; Protrusion refers to the direction protrusion to firing chamber opposite (outwards) laterally, and orthodrome seamlessly transits and refers to radius and the arc length that in corner scope of living in, as far as possible increases circular arc, is beneficial to farthest to reduce air inlet and exhaust resistance.
In the present embodiment, the corresponding intake valve 3 that is provided with gas-entered passageway on the said cylinder head body 1, with the exhaust passage 5 corresponding exhaust valves 4 that are provided with, said intake valve 3 tops are to the gas-entered passageway tilt, and exhaust valve 4 tops are to the exhaust passage tilt; Reduce the angle between inlet and outlet door and the inlet and outlet air flue, be convenient in the firing chamber air inlet of 7 inner tissues and roll stream and intake swirl, improve intake efficiency, increase flow perturbation in the cylinder, accelerate burning, improve petrol engine power; Reduce the resistance of intake and exhaust, make intake and exhaust more smooth and easy, be beneficial to and improve petrol engine power, reduce fuel consume, reduce exhaust emissions.
In the present embodiment, the cylinder head body is installed on 1.4L and following discharge capacity petrol engine, and the air inlet of combustion chamber that said intake valve 3 is positioned at gas-entered passageway 2 is provided with inlet valve seat ring 8, and it is 23.5mm that gas-entered passageway 2 engages the diameter a that is communicated with the place with inlet valve seat ring 8; The exhaust outlet of combustion chamber that exhaust valve 4 is positioned at exhaust passage 5 is provided with exhaust valve seat insert 6, and it is 19mm that exhaust passage 5 engages the diameter b that is communicated with the place with exhaust valve seat insert 6, and exhaust passage 52 is 19mm with the diameter c of gas exhaust manifold connection; The above-mentioned parameter of present embodiment combines with air passage structure, best realization the reducing and optimize flow coefficient and roll intensity of flow of resistance, be beneficial to further raising petrol engine power, reduce fuel consume, the reduction exhaust emissions.
Explanation is at last; Above embodiment is only unrestricted in order to the technological scheme of explanation the utility model; Although with reference to preferred embodiment the utility model is specified, those of ordinary skill in the art should be appreciated that and can make amendment or be equal to replacement the technological scheme of the utility model; And not breaking away from the aim and the scope of the utility model technological scheme, it all should be encompassed in the middle of the claim scope of the utility model.
Claims (5)
1. petrol engine cylinder head; Comprise the cylinder head body; Cylinder head body inboard is formed for constituting jointly with cylinder piston the firing chamber face of firing chamber; Gas-entered passageway and the exhaust passage be communicated with the firing chamber are set on the said cylinder head body, it is characterized in that: gas-entered passageway and exhaust passage are along the corner of airflow direction and seamlessly transit structure.
2. petrol engine cylinder head according to claim 1 is characterized in that: said gas-entered passageway and exhaust passage are outward-dipping with respect to the cylinder head center line.
3. petrol engine cylinder head according to claim 2 is characterized in that: said gas-entered passageway and exhaust passage are laterally along the corner of airflow direction that the orthodrome of protrusion seamlessly transits structure.
4. according to the described petrol engine cylinder head of the arbitrary claim of claim 1 to 3; It is characterized in that: the corresponding intake valve that is provided with gas-entered passageway on the said cylinder head body; The corresponding exhaust valve that is provided with the exhaust passage; Said intake valve top is to the gas-entered passageway tilt, and the exhaust valve top is to the exhaust passage tilt.
5. petrol engine cylinder head according to claim 4; It is characterized in that: the cylinder head body is installed on 1.4L and following discharge capacity petrol engine; The air inlet of combustion chamber that said intake valve is positioned at gas-entered passageway is provided with inlet valve seat ring, and it is 23.5mm that gas-entered passageway engages the diameter that is communicated with the place with inlet valve seat ring; The exhaust outlet of combustion chamber that exhaust valve is positioned at the exhaust passage is provided with exhaust valve seat insert, and it is 19mm that the exhaust passage engages the diameter that is communicated with the place with exhaust valve seat insert, and the diameter of exhaust passage and gas exhaust manifold connection is 19mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120566626 CN202417730U (en) | 2011-12-30 | 2011-12-30 | Gasoline engine cylinder head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120566626 CN202417730U (en) | 2011-12-30 | 2011-12-30 | Gasoline engine cylinder head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202417730U true CN202417730U (en) | 2012-09-05 |
Family
ID=46742501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120566626 Expired - Fee Related CN202417730U (en) | 2011-12-30 | 2011-12-30 | Gasoline engine cylinder head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202417730U (en) |
-
2011
- 2011-12-30 CN CN 201120566626 patent/CN202417730U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20161230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |