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. 23, 2002
Filed:
Oct. 02, 2000
Applicant:
Inventor:
Matthias Wiese, Regensburg, DE;
Assignee:
Siemens Aktiengesellschaft, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02M 3/704 ;
U.S. Cl.
CPC ...
F02M 3/704 ;
Abstract
The fill level of an activated-carbon canister is calculated during the regeneration process in a lean burn combustion engine. While the engine is in idle operation, the fuel mass reduction that is adjusted by a momentum-based idle controller is used as a measure of the hydrocarbon mass flow that is delivered in the regeneration process, when the activating-carbon filter is flushed back into the engine via its intake tract.