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Engine cylinder cover shield and crankcase ventilation system

A technology of engine cylinder head and shield, which is applied in the direction of crankcase ventilation, engine components, machine/engine, etc., can solve the problem of unsatisfactory separation effect, solve the problem of hose water vapor freezing, reduce noise, improve oil and gas prediction The effect of the separation effect

Active Publication Date: 2014-10-15
ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, in the prior art, oil and gas pre-separation structures (such as throttle holes and baffles) have been installed inside the cylinder head shield to perform oil and gas pre-separation before the crankcase gas enters the oil and gas separator, but the separation effect is not ideal

Method used

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  • Engine cylinder cover shield and crankcase ventilation system
  • Engine cylinder cover shield and crankcase ventilation system
  • Engine cylinder cover shield and crankcase ventilation system

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Embodiment Construction

[0034] refer to figure 1 , The crankcase ventilation system in this embodiment mainly includes three parts: the oil-air separator 100 , the guard body 200 and the cover plate 300 . The shield body 200 and the cover plate 300 are snapped together to form the engine cylinder head shield, and the specific internal structure of the engine cylinder head shield will be described below. An oil-gas separator socket 210 is integrally formed on the shield body 200, and the oil-gas separator 100 is installed in the oil-gas separator socket 210, that is to say, the shell 110 of the oil-gas separator 100 is partially or completely located in the oil-gas separator socket. The inside of the seat 210, while the air outlet pipe 120 is exposed outside.

[0035] In the following description, the side facing the engine cylinder head and cylinder block is regarded as the inside, and the side facing away from the engine cylinder head and cylinder block is regarded as the outside.

[0036] refer t...

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PUM

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Abstract

The invention provides an engine cylinder cover shield which comprises a shield body and a cover plate. The cover plate is arranged in the shield body, the cover plate and the shield body are separated, an oil gas pre-separation space is formed between the cover plate and the shield body, a first gas inlet communicated with a crankcase is arranged in the oil gas pre-separation space, and stacked oil baffles are arranged in the oil gas pre-separation space. Each oil baffle comprises a first extending portion extending upwards and backwards from the starting end, a second extending portion extending upwards and towards the starting end from the tail end of the first extending portion and a third extending portion extending downwards and backwards from the tail end of the first extending portion. A crankcase ventilation system adopting the engine cylinder cover shield is further provided. The shield and the system have the advantages of being good in oil gas pre-separation effect and avoiding adverse effect of low temperature on gas flowing.

Description

technical field [0001] The invention relates to the field of automobile engines, in particular to an engine cylinder head shield and a crankcase ventilation system. Background technique [0002] Engines, especially diesel engines, have a certain gap between the piston and the cylinder, which is called the cylinder matching gap. This gap will cause the gas in the cylinder to leak into the crankcase continuously, and the pressure of the crankcase will gradually increase. The engine needs a crankshaft. The case ventilation system helps the crankcase to vent gases and reduce pressure while filtering oil droplets from the gas. At present, the crankcase ventilation system of the engine is mostly an external oil-air separator type. This type of oil-air separator is fixed on the manifold or cylinder head through a bracket, and the oil-air separator is connected to the cylinder head guard and oil pan through a hose. There are many hoses in this type of arrangement. In winter, the wa...

Claims

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Application Information

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IPC IPC(8): F01M13/04
Inventor 马勇钱多德孟祥山胡志胜陆荣荣陈怀望刘根初
Owner ANHUI JIANGHUAI AUTOMOBILE GRP CORP LTD
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