公开(公告)号：US20050115311A1

公开(公告)日：2005-06-02

申请号：US10504804

申请日：2003-02-14

申请人： Michael Kestly ,  Frank Popielas ,  Jeffery Foster ,  James Pietraski ,  Lawrence Peck ,  James Mikos

发明人： Michael Kestly ,  Frank Popielas ,  Jeffery Foster ,  James Pietraski ,  Lawrence Peck ,  James Mikos

IPC分类号： F02F11/00 ,  F16J15/06 ,  F16J15/08 ,  G01M15/00 ,  G01L3/26

CPC分类号： F02F11/002 ,  F16J15/064 ,  F16J15/0825

摘要： A multi-layer steel (MLS) cylinder head gasket containing fully integrated pressure sensors includes first and second metal layers with inner facing surfaces, and a spacer layer interposed between the facing surfaces. Outer (non-facing) surfaces of the first and second metal layers each include an elastomeric seal coating; the inner surfaces of the layers each include a friction reducing coating. Combustion apertures extend fully between the outer surfaces of the gasket, and are adapted to circumscribe cylinder bores of an engine. The spacer layer includes protective slots positioned adjacent each of the combustion apertures. Each slot wall contains a pressure sensor in form of a strain gauge to measure deflection of the wall resulting from pressure changes within engine combustion chambers. The measured deflections are correlated to actual pressures within the chambers. In the protective slots, the strain gauges are not exposed to combustion gases that could otherwise foul the sensors.

摘要翻译： 包含完全集成的压力传感器的多层钢（MLS）气缸盖垫片包括具有内表面的第一和第二金属层和插入在相对表面之间的间隔层。 第一和第二金属层的外（非面向）表面各自包括弹性体密封涂层; 这些层的内表面各自包括减摩涂层。 燃烧孔完全在垫圈的外表面之间延伸，并且适于围绕发动机的气缸孔。 间隔层包括邻近每个燃烧孔定位的保护槽。 每个槽壁包含压力传感器，其形式为应变仪，以测量由发动机燃烧室内的压力变化引起的壁的偏转。 测量的偏差与室内的实际压力相关。 在保护槽中，应变计不会暴露于否则会污染传感器的燃烧气体。