Patent ID: 7313949

Claim:
A combustion chamber pressure sensor for measuring pressure within a combustion chamber that is enclosed in an engine block of an internal combustion engine, comprising a housing that is attached in said engine block with a front end of said housing being open to an interior of said combustion chamber, a pressure sensing element that is retained within said housing, a pressure transmitting member that is a solid body retained within said housing with a front end of said pressure transmitting member being located in said front end of said housing and exposed to said interior of said combustion chamber and with a rear end of said pressure transmitting member being in contact with said pressure sensing element; wherein said combustion chamber pressure sensor comprises a damping body disposed separately from and spaced from said pressure transmitting member and from said pressure sensing element and in contact with a circumferential surface of said housing, said circumferential surface extending an axial direction of said housing, in parallel to an axis of said housing, for attenuating vibration that is transmitted to said housing from said engine block.