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Gasket used on engine

A technology for engines and gaskets, which is applied in the direction of engine components, machines/engines, mechanical equipment, etc., and can solve problems such as short service life, easy damage, and high production costs

Inactive Publication Date: 2016-02-03
朱寒露
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  • Summary
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  • Description
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  • Application Information

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Problems solved by technology

[0002] There are mainly two types of valve seat rings used on engines. One is made of a single high-chromium cast iron. Its defect is that its service life is short, and the top of the ring body is easily damaged by friction with the parts on the engine for a long time.
The other is made of iron-chromium-nickel-molybdenum alloy material, and its defect is that the production cost is high

Method used

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  • Gasket used on engine

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Embodiment Construction

[0011] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0012] A gasket used on the engine, which is composed of an upper layer 1 and a lower layer 2 fixedly connected. The upper layer 1 is an iron-chromium-nickel-molybdenum alloy layer. The upper layer 1 is connected and rubbed with parts on the engine for a long time, and the service life of the iron-chromium-nickel-molybdenum alloy layer is used. long. The lower layer 2 is a high chromium cast iron layer, and the lower layer 2 does not connect and rub against parts on the engine, and the use of the high chromium cast iron layer reduces the production cost. The above-mentioned high-chromium cast iron layer is formed by pressing metal powder, and the production cost is lower than that of forging.

[0013] The above disclosure is only a preferred embodiment of t...

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Abstract

The invention relates to a gasket used on an engine. The gasket is characterized in that the gasket is composed of an upper layer and a lower layer which are fixedly connected, the upper layer is an iron-chromium-nickel-molybdenum alloy layer, and the lower layer is a high-chromium cast iron layer. The air valve seat gasket used on the engine has the advantages of being novel in structure, long in service life and low in production cost.

Description

technical field [0001] The invention relates to the field of automobile engines, in particular to a gasket used on the engine. Background technique [0002] There are mainly two types of valve seat rings used on engines. One is made of a single high-chromium cast iron. Its defect is that its service life is short, and the top of the ring body is easily damaged by friction with the parts on the engine for a long time. . The other is made of iron-chromium-nickel-molybdenum alloy material, and its defect is that the production cost is high. Contents of the invention [0003] The purpose of the present invention is to overcome the existing deficiencies of the valve seat for the engine, and provide a valve seat for the engine with novel structure, low production cost and long service life. [0004] Technical scheme of the present invention is: [0005] A washer used on an engine is composed of an upper layer and a lower layer fixedly connected, the upper layer is an iron-chr...

Claims

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Application Information

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IPC IPC(8): F01L3/02
Inventor 朱寒露
Owner 朱寒露
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