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Metal gasket

一种密封垫、金属制的技术，应用在发动机的密封、机械设备、发动机元件等方向，能够解决密封性能降低、密封线损伤、无法得到密封性能等问题，达到提高密封性能、密封表面压力增高的效果

Inactive Publication Date: 2010-06-16
ISHIKAWA GASKET CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, when arranging the grommet, the grommet is arranged on the periphery of the cylinder bore hole (hole for cylinder bore) in a state where the metal structural plate is sandwiched, so that the grommet member is directly connected to the cylinder head and the cylinder block. Contact forms the seal line on the innermost peripheral side. Therefore, there is a problem that in the recent low-rigidity and easily damaged aluminum alloy engine parts, damage will occur at the part of the seal line. The sealing performance is reduced, and proper sealing performance cannot be obtained
In addition, also in the folded structure, the folded portion is in direct contact with the cylinder head and cylinder block to form a seal line on the innermost peripheral side, so there is the same problem

Method used

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Embodiment Construction

[0027] Hereinafter, embodiments of the metal gasket according to the present invention will be described by taking a cylinder head gasket as an example with reference to the drawings. in addition, figure 1 as well as figure 2 It is a schematic explanatory diagram, and in order to make the structure easier to understand, dimensions such as the thickness of the plate, the size of the hole to be sealed, the size of the folded part, and the size of the bead are different from the actual ones and are shown exaggeratedly.

[0028] The metal gasket according to the embodiment of the present invention is a cylinder head gasket sandwiched between engine components such as the cylinder head and the cylinder block of the engine, and is used for the high-temperature and high-pressure combustion gas and cooling water passages of the cylinder bore. , Cooling oil passages and other fluids such as cooling water and cooling oil are sealed.

[0029] The cylinder head gasket has a plurality o...

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PUM

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Abstract

The present invention provides a metal sealing gasket which can use the pressure of the fluid that is taken as the sealing object and increase the sealing property at the hole circumference of the sealing object such as the cylinder barrel of the engine. The metal sealing gasket (1) comprises more than two metal structure plates (10 and 20) which are retained between the two components for sealing, the part of the metal sealing gasket (1) facing the sealing object hole (2) is arranged with an U-shaped ring (30) projecting to the outer circumference side between the two metal structure plates (10 and 20). Furthermore, the inner side of the U-shaped ring (30) is arranged with a sealing ring.

Description

technical field [0001] The present invention relates to a metal gasket sandwiched between two parts such as a cylinder head and a cylinder block of an engine for sealing. A metal gasket that exhibits excellent sealing performance. Background technique [0002] The cylinder head gasket (cylinder head gasket) is clamped between the cylinder head and the cylinder block of the motor vehicle engine, and is fastened by cylinder head screws, and has the function of sealing combustion gas, oil, cooling water and other fluids role. [0003] In this cylinder head metal gasket, in order to prevent corrosive combustion gas at high temperature from entering between the metal structural plates of the gasket, a U-shaped ring guard is arranged so as to protrude toward the side of the cylinder bore hole. A grommet, a folded portion formed by folding a metal structural plate (for example, refer to Patent Document 1). [0004] However, when arranging the grommet, the grommet is arranged on ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/08
CPCF16J15/0825F16J2015/0862F16J15/06
Inventor 木下裕一
Owner ISHIKAWA GASKET CO LTD
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