A cylinder head water jacket structure and engine cooling system that can improve engine cold start performance

A cylinder head and engine technology, which is applied in the directions of engine lubrication, engine components, machines/engines, etc., can solve the problems of not clearly disclosing the specific position of the throttle orifice structure, reducing the warm-up efficiency, and increasing the warm-up time. Achieve the effect of improving cold start performance, increasing warm-up speed and simple structure
CN109630304BActive Publication Date: 2020-04-03DONGFENG MOTOR CORP HUBEI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGFENG MOTOR CORP HUBEI
Publication Date
2020-04-03

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Abstract

The invention discloses an air cylinder cover water sleeve structure capable of improving cold-starting performance of an engine, and an engine cooling system. The air cylinder cover water sleeve structure comprises an air cylinder cover water sleeve body, an air cylinder cover water sleeve water-outlet chamber, an engine oil cooler water-outlet hole and an engine body water outlet are formed in the air cylinder cover water sleeve body, the engine oil cooler water-outlet hole and the engine body water outlet communicate with the air cylinder cover water sleeve water-outlet chamber, a buffer chamber is formed between the air cylinder cover water sleeve water-outlet chamber and the engine oil cooler water-outlet hole, one end of the buffer chamber communicates with the air cylinder cover water sleeve water-outlet chamber, and the other end of the buffer chamber communicates with the engine oil cooler water-outlet hole. The air cylinder cover water sleeve structure is simple in structure,and the two-way flow of cooling liquid heated by a small circulation pipeline can be reasonably distributed, so that the more cooling liquid used for heating an engine body can flow into the engine body.
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Description

technical field

[0001] The invention relates to a cylinder head water jacket structure, which belongs to the technical field of machining equipment, in particular to a cylinder head water jacket structure capable of improving engine cold start performance and an engine cooling system containing the structure. Background technique

[0002] When a gasoline engine starts cold, the temperature in the cylinder and engine oil is low, and the fuel atomization effect is poor. In order to ensure the power, the mixture needs to be enriched. At this time, the combustion of the mixture is not sufficient, which will lead to an increase in fuel consumption and HC and CO emissions. increase, worsening the fuel economy and emission performance of the engine; in addition, when the oil is in a state of solidification or precipitation due to low temperature during cold start, the lubricating performance decreases, which will lead to increased wear of the moving parts of the engine and affect th...

Claims

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