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:
Apr. 26, 2011
Filed:
Dec. 17, 2008
Applicant:
Herbert Schumacher, Gerlingen, DE;
Inventor:
Herbert Schumacher, Gerlingen, DE;
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02G 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method for identifying the fuel quality and for operating an internal combustion engine, as well as an engine control unit, in which the temperature of at least one sheathed-element glow plug of the engine is controlled, an engine response after a temperature change is compared to an engine response before the temperature change, and from the result of this comparison, the fuel quality is derived.