Patent · US Expired

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

US5503023A · kind A · utility

13Cited by

7References

13Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Walter Benedikt
Manfred Vogel · Ditzingen, DE
Werner Herden · Gerlingen, DE
Wolfgang Schmidt
Matthias Kuesell · Kornwestheim, DE
Frank Stanglmeier · Heubach, DE

Key dates

Filing date	Mar 3, 1992
Grant date	Apr 2, 1996
Priority date	—
Expiry date	Mar 3, 2012

Classification

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

Abstract

In a pressure sensor, the force is introduced onto a piezoresistive measuring element via a diaphragm and a punch. Since no exact mechanical adjustment between the diaphragm and the measuring element is necessary, various relatively inexpensive forms of diaphragm with different measuring sensitivity can be used. The punch and the piezoresistive measuring element can be pushed through an opening in the housing and pressed onto the diaphragm so as to provide an interlocking frictional connection between the punch and the measuring element.

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