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:
Mar. 23, 2010
Filed:
Nov. 30, 2004
Applicants:
Richard Vogt, Willstaett, DE;
Andreas Ewert, Lichtenau, DE;
Michael Strupp, Cheongwon-Gun, KR;
Inventors:
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 6/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a device () for the incremental control of at least one first direct-current motor () for the cooling fan of a motor vehicle. Said device comprises a first () and a second current-limiting component (), and a first (), a second () and a third switching element (). The inventive device is characterized in that the switching elements () connect the first () and the second current-limiting component () in such a manner that the cooling capacity of the cooling fan can be varied in at least four levels different from zero.