Patent · US Expired

Pressure sensor for detecting the pressure in the combustion chamber of internal combustion engines

US5249468A · kind A · utility

16Cited by

4References

15Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Walter Benedikt
Manfred Vogel · Ditzingen, DE
Werner Herden · Gerlingen, DE
Johann Konrad · Eichberg, DE
Wolfgang Schmidt
Josef Tosch
Matthias Kuesell · Kornwestheim, DE
Frank Stanglmeier · Heubach, DE

Key dates

Filing date	Mar 3, 1992
Grant date	Oct 5, 1993
Priority date	—
Expiry date	Mar 3, 2012

Classification

Technology area (CPC G)Physics
CPC primaryG01L23/18
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A pressure sensor for detecting pressure in a combustion chamber of internal combustion engines has a housing, a sensor element arranged in the housing and composed of a piezoresistive material, a diaphragm, and a punch arranged between the diaphragm and the sensor element and introducing a pressure to be determined onto the sensor element. The punch has an end facing the sensor element, at least the end of the punch is composed of relatively soft material.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.