Metal liner

A metal gasket and substrate technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of not being able to guarantee the sealing characteristics for a long time, the life of the metal gasket is reduced, the surface pressure is unbalanced, etc., to ensure the sealing performance, improved fuel consumption, the effect of uniform surface pressure

Inactive Publication Date: 2004-08-25
JAPAN METAL GASKET CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When this happens, the roundness of the cylinder bore hole decreases because the surface pressure of the peripheral portion of the cylinder bore hole is unbalanced, and in addition, the deformation of the cylinder increases because of the difference in heat conduction from the cylinder block to the cylinder head at different parts during engine operation. up
In addition, when the above-mentioned gap occurs, since the joint surface side of the metal packing is directly exposed to the combustion gas, some problems are caused: the life of the metal packing is reduced, and the sealing property cannot be ensured for a long time
When the engine works in this state, it increases fuel consumption, reduces power, and causes exhaust pollution, etc.

Method used

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Embodiment Construction

[0081] Figure 1-4 One embodiment of the invention is shown. The metal backing 10 includes a base plate 11 made of metal such as stainless steel, and a set of holes are formed in the base plate 11 . The base plate 11 includes the inner surface of each hole, and two joint surfaces surrounding each hole, which are covered with metal plating, resin coating, or a mixed coating of metal and resin. In addition, depending on the cylinder block and cylinder head constituting the engine To deal with the roughness of the joint surface, a surface treatment material 12 is baked on the surface of the substrate 11, such as fluorinated rubber, nitrile rubber (NBR), molybdenum disulfide and the like. exist Figure 4 In , the surface treatment material 12 is shown slightly exaggerated, but not shown in other figures.

[0082]One group of holes includes a group of cylinder bore holes 13 corresponding to the cylinder bore (combustion chamber) of the cylinder block, bolt holes 14 corresponding...

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Abstract

A metal liner disposed between the combine faces of a cylinder and a cylinder head for sealing the combine faces, includes: a single base plate made of metal formed with at least one combustion chamber hole; a folded portion on the base plate formed by folding the edge of the combustion chamber hole back on the base plate; a soft member fixed on the inner side of the folded portion; a chimb made of rubber material formed on at least one combine surface of the base plate and the height of the chimb is larger than the height of the folded portion; an another folded portion formed in the combine area of the base plate, and is different from the folded portion; a rift filling plate fixed in the said another folded portion.

Description

[0001] This application is a divisional application of No.95119740.1 (application date: 1995.11.20, invention name: metal backing). technical field [0002] The present invention relates to a metal gasket provided between a cylinder block and a cylinder head joint surface of an internal combustion engine capable of preventing leakage of fluids such as combustion gas, cooling water, lubricating oil and the like. Background technique [0003] Generally, various gaskets are provided between a cylinder block and a cylinder head joint surface constituting an automobile engine such as an internal combustion engine to prevent leakage of fluids such as combustion gas, cooling water, lubricating oil, etc. Tighten the cylinder block and cylinder head to achieve sealing effect. In the prior art, there are so-called soft pads, which are made of asbestos materials, chemical fiber materials, carbon sheet materials and the like. However, the soft pad has an unavoidable disadvantage that t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/08F16J15/12
CPCF16J15/0818F16J15/123F16J2015/0862F16J2015/0856F16J2015/0837F16J2015/0843F16J15/06
Inventor 植田耕作
Owner JAPAN METAL GASKET CO LTD
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