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:
Jan. 14, 2014
Filed:
Dec. 10, 2007
Applicants:
Stefan Koch, Kappelrodeck, DE;
Patric Kahles, Buehl, DE;
Volker Lurk, Offenburg, DE;
Inventors:
Assignee:
Robert Bosch GmbH, Stuttgart, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 23/04 (2006.01); F04B 41/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fan system includes: two circuit breakers, a control module for controlling two circuit breakers, two electric motors to which their operating voltage Uis supplied via the circuit breakers, and at least one temperature sensor on a board on which the circuit breakers are located. The control module evaluates a signal Tfrom the temperature sensor, and sets the pulse duty factors TV, TVof pulsed control voltages at the circuit breakers, while taking into account this signal as well as a requested fan power, in such a way that no power loss Pexceeding a specified value occurs at any circuit breaker.