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. 19, 2021
Filed:
Nov. 22, 2017
Applicant:
Webasto SE, Stockdorf, DE;
Inventors:
Assignee:
WEBASTO SE, Stockdorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60H 1/22 (2006.01); F23N 1/02 (2006.01);
U.S. Cl.
CPC ...
B60H 1/2212 (2013.01); F23N 1/02 (2013.01); B60H 2001/2228 (2013.01); B60H 2001/2284 (2013.01); F23N 2241/14 (2020.01);
Abstract
A method to operate a fuel-operated vehicle heater comprising the lowering of a combustion air ratio λ between supplied combustion air and supplied fuel to a combustion chamber of the fuel-operated vehicle heater from a starting value λ>1 to a range λ<λfor a time period Δt.