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:
Oct. 29, 1985
Filed:
Apr. 10, 1984
Klaus Dobler, Gerlingen, DE;
Rudolf Heinz, Gerlingen, DE;
Ulrich Schoor, Stuttgart, DE;
Thomas Frey, Rutesheim, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A conductor (5) which varies its resistance value under the influence of pressure is introduced into the combustion chamber of the engine. In one embodiment the conductor is a wire (5), a coil, a meander pattern or the like; preferably, one part (5a) of the wire arrangement is shielded from the pressure. The shielded (5a) and the unshielded (5b) parts of the wire arrangement then form the branches of a bridge circuit. The sensor is preferably disposed in the breathing room (11) of a spark plug or for a Diesel engine, combined with an electric conductor (21, 44) serving to provide pre-glowing in a glow plug. Combustion pressures are thus sensed for controlling and/or regulating injection systems and/or ignition systems without requiring additional bores.