Compound gasket for engine

An engine and gasket technology, applied in the direction of engine components, engine sealing, mechanical equipment, etc., can solve the problems of gaskets, fasteners and contact surfaces wear, poor sealing, etc., to achieve enhanced strength and corrosion resistance, The effect of prolonging the service life and good sealing effect

Inactive Publication Date: 2016-03-16
CHENGDU 90 DEGREE IND PROD DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a combined gasket for engines in view of the above existing problems, which mainly solves the problem of poor sealing performance when two planes are connected, and at the same time solves the problem of serious wear of sealing gaskets, fasteners and contact surfaces , through the special metal gasket, the elasticity, toughness, strength and corrosion resistance of the metal gasket are enhanced, and the service life of the metal gasket is extended

Method used

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  • Compound gasket for engine
  • Compound gasket for engine
  • Compound gasket for engine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as figure 1 with figure 2 As shown, a combined gasket for an engine includes a metal gasket body 5, the metal gasket body 5 is provided with a plurality of cylinder holes 1 and mounting holes 6, the cylinder hole 1 is inlaid with a sealing ring, so The sealing ring includes a rubber sleeve 2, a first elastic layer 3, a second elastic layer 7 and a stretchable layer 4. The sealing ring and the inner wall of the cylinder hole 1 are connected by a first elastic layer 3, and the other side of the first elastic layer 3 The elastic layer 4 is bonded, the other side of the elastic layer 4 is bonded to the second elastic layer 7, and the other side of the second elastic layer 7 is bonded to the rubber sleeve 2, and the rubber sleeve 2 is exposed The upper and lower ends of the metal gasket body 5 are turned outwards to form a skirt. The outer surface of the rubber sleeve 2 is coated with a polytetrafluoroethylene layer. The telescopic layer 4 is provided with a number of fl...

Embodiment 2

[0037] This embodiment is the same as the first embodiment. The difference is that the components of the elastic stainless steel are calculated by weight percentage (the following% are all expressed by weight percentage): 0.17% for carbon, 7% for nickel, and 9% for chromium. , Manganese is 11%, niobium is 0.58%%, vanadium is 0.32%, molybdenum is 1.8%, titanium is 4%, rare earth is 0.53%, the total amount of phosphorus and sulfur does not exceed 0.035%, and the balance is iron and its indispensable To avoid impurities, the preparation process of the elastic stainless steel includes the following steps:

[0038] Step 1. Use an intermediate frequency induction electric furnace for smelting. The order of adding the metal charge is pig iron, scrap steel, ferromolybdenum, ferronickel, ferromanganese, and ferrochrome. When the smelting temperature reaches 1610°C, deoxidize, and then add deoxidizer for secondary deoxidation. After that, ferromolybdenum, ferro-vanadium, ferro-titanium and...

Embodiment 3

[0044] This embodiment is the same as the first and second embodiments. The difference is that the components of the elastic stainless steel are calculated as percentages by weight (the following percentages are all expressed as percentages by weight): 0.14% carbon, 5% nickel, Chromium is 10%, manganese is 9.5%, niobium is 0.65%, vanadium is 0.27%, molybdenum is 1.5%, titanium is 3.7%, rare earth is 0.46%, the total amount of phosphorus and sulfur does not exceed 0.035%, and the balance is iron And the inevitable impurities, the preparation process of the elastic stainless steel includes the following steps:

[0045] Step 1. Use an intermediate frequency induction electric furnace for smelting. The order of adding the metal charge is pig iron, scrap steel, ferromolybdenum, ferronickel, ferromanganese, and ferrochrome. When the smelting temperature reaches 1610°C, deoxidize, and then add deoxidizer for secondary deoxidation. After that, ferromolybdenum, ferro-vanadium, ferro-titan...

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Abstract

The invention discloses a compound gasket for an engine, comprising a metal gasket body, wherein a plurality of cylinder holes and mounting holes are formed in the metal gasket body, sealing rings are inlaid in the cylinder holes; the sealing ring comprises a rubber sleeve, a first elastic layer, a second elastic layer and a flexible layer; the sealing rings are connected with the inner walls of the metal gasket body by the first elastic layers, the rubber sleeve is exposed from the upper end and the lower end of the metal gasket body and is folded outwards to form sideways, a plurality of flanges are formed on the flexible layer; and the flanges are arranged on the metal gasket body in parallel at equal intervals, a clearance between the flanges forms a groove, and the flanges and the grooves are combined to form a waveform or a teeth shape. The compound gasket for an engine main solves the problem of poor airtightness in connection of two planes, and also solves the problems of serious abrasion of a sealing gasket, a fastener and a contact surface; and due to the specially-made metal gasket, capabilities of elasticity, toughness, strength and corrosion resistance of the metal gasket are enhanced, and the service life of the metal gasket is prolonged.

Description

technical field [0001] The invention relates to the field of sealing gaskets, in particular to a combined gasket for an engine. Background technique [0002] Metal gaskets for engines are often used as a material to strengthen the seal between two planes, and as a sealing element to prevent leakage of the lubricating oil tank, it is set between the static sealing surfaces. At present, most of the metal gaskets are simple rings. After contacting with the parts to be sealed, they cannot form a sealing band and are prone to leakage, which needs to be further improved. The occasions where gaskets are used often have a more complicated working environment. For example, on the engine flange, the vibration caused by mechanical work will drive the fasteners on the flange to vibrate, causing the gasket below the fasteners to vibrate against the flange. The inner wall and the surface of the fastener cause shear stress and tend to slide, resulting in severe wear of the contact parts. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/18B23P15/00C22C38/58
Inventor 李娟
Owner CHENGDU 90 DEGREE IND PROD DESIGN CO LTD
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