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。

公开(公告)号：US20050126262A1

公开(公告)日：2005-06-16

申请号：US10504372

申请日：2003-02-14

申请人： Frank Popielas ,  Howard Robins ,  Jeffery Foster ,  James Pietraski ,  Lawrence Peck ,  James Mikos

发明人： Frank Popielas ,  Howard Robins ,  Jeffery Foster ,  James Pietraski ,  Lawrence Peck ,  James Mikos

IPC分类号： G01L23/16 ,  B21D53/84 ,  F02D35/00 ,  F02D35/02 ,  F02M20060101 ,  F02M1/00 ,  G01L23/22

CPC分类号： G01L1/242 ,  F02D35/023 ,  G01L23/06 ,  Y10T29/49986

摘要： Sensor apparatus for a multiple layer steel (MLS) cylinder head gasket measures combustion pressures for detecting engine conditions. A membrane is positioned at one end of an elongated metal tube, and the membrane end of the tube engages a cylinder bore boundary. A fiber optical sensor apparatus is fixed within the tube, and communicates with cyclic combustion events via the membrane. In one disclosed embodiment, optical wires from sensor apparatus situated at each engine bore are bundled into a common groove machined into an extended spacer layer radially outwardly of the conventional boundary of the gasket. The tube protects the sensor apparatus from damage of sealing stress on the gasket, and particularly at the bore perimeter. Each tube lies in a separate groove in the spacer layer that terminates at the bore boundary. A converter changes optical signals received from the apparatus into electrical signals for transmittal to a controller.

摘要翻译： 用于多层钢（MLS）气缸盖垫片的传感器装置测量用于检测发动机状况的燃烧压力。 膜位于细长金属管的一端，并且管的膜端接合缸孔边界。 纤维光学传感器装置固定在管内，通过膜与循环燃烧事件相通。 在一个公开的实施例中，位于每个发动机孔处的来自传感器装置的光导线被捆扎成公共凹槽，其被加工成径向向外的垫圈常规边界的延伸间隔层。 该管保护传感器装置不会损坏垫圈上的密封应力，特别是在孔周边。 每个管位于间隔层中的在孔边界处终止的单独凹槽。 A转换器将从装置接收的光信号改变为用于发送到控制器的电信号。