发明名称 Metal laminate gasket with stepped sealing portion
摘要 A metal laminate gasket of the invention is formed of first, second and third metal plates. The first metal plate includes a curved portion to define a first hole corresponding to a hole of an engine to be sealed, and a flange extending from the curved portion. The second metal plate is located above a first base portion of the first metal plate, and has a second hole with a diameter greater than a size of the flange. The third metal plate is situated above the second metal plate, and includes an inner portion situated around a third hole under the flange. A stepped portion is formed between the inner portion and a third base portion by bending the third metal plate to have a thickness greater than that of the third metal plate. When the gasket is compressed, the stepped portion is disposed between an outer edge of the flange and an edge of the second hole and provides a surface pressure thereat. The stepped portion securely seals around the hole of the engine outside a main sealing device.
申请公布号 US5899462(A) 申请公布日期 1999.05.04
申请号 US19970893525 申请日期 1997.07.11
申请人 ISHIKAWA GASKET CO., LTD. 发明人 UDAGAWA, TSUNEKAZU
分类号 F02F11/00;F16J15/08;(IPC1-7):F02F11/00 主分类号 F02F11/00
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