Highly-integrated engine cam bearing cover

Abstract

The invention relates to a highly-integrated engine cam bearing cover. The highly-integrated engine cam bearing cover comprises a bearing cover body, the highly-integrated engine cam bearing cover further integrates a VVT main oil way filter screen and fixed bolt hole, a gas inlet OCV mounting hole, a gas exhaust OCV mounting hole and a VVT oil passage structure in an engine VVT system. The highly-integrated engine cam bearing cover has the advantages that an OCV is vertically arranged on the cam bearing cover, so that the phenomena that due to arrangement of the VVT system, the front end of acylinder cover is thickened, then casting defects are likely to be formed, the weight of an engine is increased, and then the economical efficiency of the engine is reduced are avoided, meanwhile, due to the fact that the OCV is arranged on the cam bearing cover, the OCV is closer to the VVT, then the oil passage distance is reduced, the engine oil pressure loss is avoided, the response speed ofVVT is increased, and the power performance of the engine is improved.

Description

technical field [0001] The invention relates to a bearing cover in the field of engines, in particular to a highly integrated engine cam bearing cover. Background technique [0002] At present, in the mechanical industries such as automobile manufacturing and internal combustion engines, variable valve timing technology (VVT, Variable Valve Timing) has almost become the standard configuration of today's engines. The engine variable valve technology can increase the intake impulse and increase the impulse coefficient, thereby improving Engine torque and power. As the control mechanism of VVT, there are two main installation methods of OCV valve. [0003] The first is to arrange the OCV valve at the front end of the engine cylinder head. If the OCV valve is installed on the cylinder head, the thickness of the front end of the cylinder head is increased, casting defects are easily formed, the weight of the engine is increased, and the engine economy is reduced; more important...

AI Technical Summary

Problems solved by technology

Increased weight compromises engine economy

[0005] At the same time, due to the relatively backward domestic production technology, the cleanliness of parts cannot be well controlled, and a large number of small impurities will enter the engine oil after the engine is running and running in, and these small impurities can easily cause the OCV valve to get stuck or stuck. , the valve phase cannot be well controlled; at the same time, the oil dirt entering the VVT ​​system will not be conducive to the normal reset of the VVT ​​rotor, resulting in the failure of the VVT ​​system

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