Pressure sensor for determination of pressure in the combustion

Details Pressure sensor for determination of pressure in the combustion Pressure sensor for determination of pressure in the combustion

1991-07-05

1993-04-06

Woodiel, Donald O.

Measuring and testing

Fluid pressure gauge

Diaphragm

73706, 73708, 73756, 338 4, 338 42, G01L 708, G01L 906

Patent

active

051993031

ABSTRACT:
A pressure sensor for determination of pressure in a combustion chamber of an internal combustion engine, particularly for motor vehicles has a housing, a membrane associated with the housing, a sensor element, a plunger supplying a pressure to be determined to the sensor element and located in the housing. The housing has at least one housing opening and a shaft and the membrane closing the opening of the housing and is connected with the shaft of the housing in the region of a side wall so that a bottom of the membrane is flexible and a pressure to be determined is transferable to the plunger, a counter bearing for the plunger. A support is provided for a hybrid and composed of ceramic material and located on the counter bearing for the plunger. The sensor element is a piezoresistive measuring element and located on the hybrid so as to produce an electrical signal corresponding to the pressure.

REFERENCES:
patent: 3204463 (1965-09-01), Taber
patent: 4567395 (1986-01-01), Pundarika
patent: 5095741 (1992-03-01), Bartig et al.

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