发明名称 |
Cylinder pressure sensor for an internal combustion engine. |
摘要 |
<p>A pressure sensor for providing an electrical signal corresponding to pressure in a cylinder of an automotive engine has a rigid load-spreading element rigidly secured to a first surface of a ceramic piezoelectric body by a rigid bonding material precisely conformed to the first surface to be in substantially uniform load-transferring relation to all parts of the first body surface, has a rigid support member rigidly secured to a parallel, opposite surface of the ceramic piezoelectric body by a rigid bonding material precisely conformed to the opposite surface to be in substantially uniform load-transferring relation to all parts of the opposite body surface to form a piezoelectric unit, and has a peripheral part of the rigid support member precisely mounted with an interference fit in a bore in a metal component of a mounting structure so that the body of piezoelectric material and the load-spreading element extend in cantilever relation at a precisely determined location to be engaged by force applied through a diaphragm in response to an applied pressure to provide an electrical signal precisely corresponding to the pressure.</p> |
申请公布号 |
EP0317163(A2) |
申请公布日期 |
1989.05.24 |
申请号 |
EP19880310524 |
申请日期 |
1988.11.09 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
LUKASIEWICZ , STANLEY J.;COOPER, LAWRENCE E.;ANASTASIA, CHARLES M.;PESTANA, GREGG W. |
分类号 |
G01L9/00;G01L23/10 |
主分类号 |
G01L9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|