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. 13, 1999
Filed:
Dec. 18, 1996
Applicant:
Inventor:
Dirk Brenner, Stuttgart, DE;
Assignee:
J. Eberspacher GmbH & Co., Esslingen, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F24H / ;
U.S. Cl.
CPC ...
432222 ; 123435 ;
Abstract
A fuel-operated heater, especially an auxiliary heater for a motor vehicle, with a fuel feed pump and/or with a combustion air fan, is provided with a combustion control circuit. The control circuit acts to maintain a predetermined air-to-fuel ratio at a constant value in the combustion chamber of the heater ('lambda value') by energizing the controllable fuel feed pump and/or the controllable combustion air fan.