Pressure-measuring device

Details Pressure-measuring device Pressure-measuring device

2011-06-07

2011-06-07

Allen, Andre J (Department: 2855)

Measuring and testing

Fluid pressure gauge

Diaphragm

C073S035120

Reexamination Certificate

active

07954382

ABSTRACT:
A pressure-measuring device is situated in a chamber of an internal combustion engine. The pressure-measuring device has a housing, a force-transmitting element that protrudes partly from the housing at a chamber-side opening of the housing, and a pressure sensor that is situated in an interior space of the housing. The pressure sensor stands in effective connection to the force-transmitting element. In addition, a diaphragm is provided that seals the interior space of the housing, in which the pressure sensor is situated, against the chamber-side opening. The diaphragm, which is preferably fashioned as a metal diaphragm, has a force-transmitting segment that is oriented in an axial direction of the force-transmitting element. Moreover, the pressure sensor stands in effective connection with the force-transmitting element via the force-transmitting segment of the diaphragm. In this way, there takes place at least a partial compensation of thermally caused changes in length of the diaphragm, caused for example by hot combustion gases, and resulting in periodic impairments of the pressure measurement made by the pressure sensor.

REFERENCES:
patent: 3673443 (1972-06-01), Siegel
patent: 3857287 (1974-12-01), Sonderegger et al.
patent: 2005/0252297 (2005-11-01), Heinzelmann et al.
patent: 2006/0053875 (2006-03-01), Haussner et al.
patent: 2007/0245805 (2007-10-01), Schricker et al.
patent: 2007/0245806 (2007-10-01), Hirose et al.
patent: 2008/0223139 (2008-09-01), Hirose et al.
patent: 2009/0242540 (2009-10-01), Itoh et al.
patent: 2009/0314061 (2009-12-01), Kern et al.
patent: 2009/0320576 (2009-12-01), Borgers et al.
patent: 2010/0147822 (2010-06-01), Burrows et al.
patent: 537013 (1973-05-01), None
patent: WO 2006/072514 (2006-07-01), None
patent: WO 2006/108939 (2006-10-01), None
International Search Report, PCT International Patent Application No. PCT/EP2007/061021, dated Mar. 5, 2008.

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