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:
Sep. 01, 2009
Filed:
Nov. 28, 2005
Christoph Kern, Aspach, DE;
Steffen Schott, Schwieberdingen, DE;
Markus Ledermann, Asperg, DE;
Pavlo Saltikov, Waiblingen, DE;
Christoph Kern, Aspach, DE;
Steffen Schott, Schwieberdingen, DE;
Markus Ledermann, Asperg, DE;
Pavlo Saltikov, Waiblingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A pencil-type glow plug for a self-igniting internal combustion engine is described. The pencil-type glow plug includes a plug body in which a combustion chamber pressure sensor is integrated, and a bar-shaped heating element that protrudes out from the plug body at one end, into the combustion chamber of the internal combustion engine. A force-measuring element of the combustion chamber pressure sensor is accommodated behind the heating element, which moves axially under the influence of force. The force-measuring element is sealed against combustion chamber gases by a steel diaphragm made of a stainless precipitation-hardened maraging steel.