Air cylinder cover of miniature type engine precast with cooling water jacket
A technology for engine cylinders and cooling water jackets, applied in the direction of engine components, machines/engines, cylinder heads, etc., can solve the problems of cooling water flow, small space, and poor cooling effect of air passages, so as to prevent dead water areas and improve power sexual effect
Inactive Publication Date: 2010-04-28
CHONGQING CHANGAN AUTOMOBILE CO LTD
View PDF0 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] As the engine is subject to space constraints and lightweight requirements, the overall layout space is very compact, and the space left between the air passage and the cylinder block is very small, and the cooling water passage cannot be reduced while ensuring a good cooling effect. The strength of the cylinder head, if it is designed according to the traditional structure, there is no pre-cast water channel between the two exhaust channels of the cylinder head, the cooling effect around the air channel will be poor, or there is a water channel between the two exhaust channels but it is not compatible with The cooling water channel of the cylinder body is not connected, and this part is easy to form a dead zone for cooling water flow, and the cooling effect around the air channel is not good.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] see figure 1 with figure 2 , 3 , between the two exhaust passages 3 and 4 of the cylinder head, and above the combustion chamber 5, the cooling water jacket 1 is pre-cast (7 is the spark plug hole). In order to ensure that the surrounding wall thickness is consistent, the exhaust passage and cooling water The wall thickness between sets 1 is uniform, which can occupy the space of the airway and make the inside of the airway convex. However, the airway 3D modeling design can be revised through the airway steady-state test, and the impact on the airflow caused by the convexity can be reduced to a minimum. The lowest, almost negligible, so the pre-cast water jacket is irregular in shape. The cooling water flows through here to quickly take away the excess heat transferred by the high-temperature exhaust gas, in order to prevent this part from becoming a dead zone for cooling water flow.
[0015] see figure 2 with Figure 4 , inside the cooling water jacket 1, there ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| Diameter | aaaaa | aaaaa |
Login to View More
Abstract
The invention provides an air cylinder cover of a miniature type engine precast with a cooling water jacket, which is provided with an air cylinder cover body, wherein a cooling water jacket is precast between two exhaust ducts of the air cylinder cover body and positioned at a position above a combustion chamber, and a water jacket hole which is communicated with a cooling water channel of a cylinder body is machined inside the cooling water jacket. The water jacket hole is arranged between two exhaust doors of each cylinder of an engine on the air cylinder cover body, is arranged at the upper right part of a combustion chamber and is close to the exhaust ducts, and an included angle C1 is formed between the axis of the hole center of the water jacket hole and the bottom plane of the air cylinder cover and the included angle is 30-50 degrees. By arranging the cooling water jacket between the two exhaust ducts of the air cylinder cover additionally, the invention can quickly take away superfluous heat transmitted by high-temperature waste gas and improve the power property, the durability and the combustion property of the engine. In order to prevent the local position from becoming the flowing dead area of cooling water, the cooling water between the cylinder body and the cylinder cover is also further communicated by machining holes to take away the heat, thus preventing the occurrence of a dead water area.
Description
technical field [0001] The invention belongs to the technical field of engines, and in particular relates to an engine cylinder head coolant channel structure with small displacement and high power-up. Background technique [0002] As the engine is subject to space constraints and lightweight requirements, the overall layout space is very compact, and the space left between the air passage and the cylinder block is very small, and the cooling water passage cannot be reduced while ensuring a good cooling effect. The strength of the cylinder head, if it is designed according to the traditional structure, there is no pre-cast water channel between the two exhaust channels of the cylinder head, the cooling effect around the air channel will be poor, or there is a water channel between the two exhaust channels but it is not compatible with The cooling water channel of the cylinder body is not connected, and this part is easy to form a dead zone for cooling water flow, and the coo...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): F02F1/16
Inventor 成卫国李想苏继才
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD