Cylinder head cover sealing ring of automobile engine

Abstract

The invention discloses a cylinder head cover sealing ring of an automobile engine, and is applied to the technical field of automobile gasoline engines. A cylinder head and bearing caps are connectedtogether through bearing cap bolts; the cylinder head cover sealing ring is embedded into a cylinder head cover, and the cylinder head cover sealing ring and the cylinder head cover are together arranged on the cylinder head through cylinder head cover bolts; the upper surface of the cylinder head is a plane sealing face D; the upper surface of each bearing cap is an arc surfacesealing face E; the intersecting position of the plane sealing face D of the cylinder head and the arc surface sealing face E of each bearing cap are sealing contact face inflection points F; the cross section of the sealing ring is of a rhombic structure; the middle part of the cross section is large, and the two ends of the cross section are small; after the sealing ring is compressed, a middle waist part deformsto make supporting more stable, and the sealing ring is not easy to incline; it is guaranteed that rubber cannot be easily extruded to overflow when the sealing ring is pressed tightly; the variationof the height is conducive to filling gaps between the parts, and the sealing effect is good. The cylinder head cover sealing ring disclosed by the invention is simple in structure, has a reasonabletechnology, meets the requirement of normal use and is capable of effectively avoiding the leakage risk of the cylinder head cover.

Description

technical field [0001] The invention relates to an automobile engine cylinder head cover sealing ring in the technical field of automobile gasoline engines. Background technique [0002] In recent years, with the development of automobile technology, the engine performance is getting higher and higher, which puts forward higher requirements for engine components. A cylinder head cover sealing ring is provided at the junction of the engine cylinder head cover and the cylinder block to seal the crankcase. Emission regulations require that the engine crankcase cannot directly leak into the atmosphere, so the sealing effect of the sealing ring is very important, and it is necessary to ensure the reliability and stability of the sealing performance. During the manufacturing process of the engine on the production line, there is a process of testing the sealing ring of the cylinder head cover. If leakage is detected before leaving the factory, the faulty engine parts will be disa...

AI Technical Summary

Problems solved by technology

At present, the existing sealing rings are all designed with equal cross-sectional heights, and there is a certain risk of leakage for irregular gaps between parts

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