The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 07, 2011
Filed:
Oct. 16, 2007
Christoph Kern, Aspach, DE;
Ewgenij Landes, Remseck, DE;
Reiko Zach, Remseck, DE;
Michael Schuettoff, Deckenpfronn, DE;
Michael Kleindl, Schwieberdingen, DE;
Christian Doering, Stuttgart, DE;
Steffen Schott, Schwieberdingen, DE;
Pavlo Saltikov, Waiblingen, DE;
Christoph Kern, Aspach, DE;
Ewgenij Landes, Remseck, DE;
Reiko Zach, Remseck, DE;
Michael Schuettoff, Deckenpfronn, DE;
Michael Kleindl, Schwieberdingen, DE;
Christian Doering, Stuttgart, DE;
Steffen Schott, Schwieberdingen, DE;
Pavlo Saltikov, Waiblingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
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.