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MLS gasket with bore edge stopper bead

机译:带孔边缘塞珠的MLS垫片

摘要

A gasket includes an intermediate layer having resilient sealing beads flanked by stopper beads. The three-layer gasket, particularly designed for heavy duty racing engines, provides a relatively robust cross-section in web-areas between cylinder bore apertures. A thin bottom layer includes wrap-around flanged portions extending about cylinder bore edges of the intermediate layer to partially overlap cylinder bore aperture areas of that layer. The flanged portions may include a plurality of waves to increase forces to generate the seal. A thin top layer overlies the intermediate layer, as well as the overlapping portions of the bottom layer. In one described embodiment, the overlapping portions are limited to cylinder bore edges between cylinder bores. As a between-engine-overhaul indication of engine health, the top gasket layer is adapted via plastic deformation to form a permanent indentation in an aluminum cylinder head to signal excessive engine operation.
机译:垫圈包括中间层,该中间层具有侧接有塞子珠的弹性密封珠。特别为重型赛车发动机设计的三层垫片在汽缸孔之间的腹板区域提供了相对坚固的横截面。薄的底层包括围绕中间层的汽缸孔边缘延伸的环绕凸缘部分,以部分重叠该层的汽缸孔区域。凸缘部分可包括多个波,以增加力以产生密封。薄的顶层覆盖中间层以及底层的重叠部分。在一个描述的实施例中,重叠部分限于汽缸孔之间的汽缸孔边缘。作为发动机大修之间发动机健康状况的指示,顶部垫片层通过塑性变形进行调整,以在铝制气缸盖中形成永久性凹痕,以表明发动机过度运转。

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