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:
Aug. 02, 2022
Filed:
Nov. 18, 2021
Applicant:
Nidec Gpm Gmbh, Auengrund OT Merbelsrod, DE;
Inventor:
Franz Pawellek, Lautertal, DE;
Assignee:
NIDEC GPM GMBH, Auengrund OT, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P 5/12 (2006.01); F01P 7/14 (2006.01); F01P 5/10 (2006.01);
U.S. Cl.
CPC ...
F01P 5/12 (2013.01); F01P 7/14 (2013.01); F01P 2005/105 (2013.01); F01P 2007/146 (2013.01);
Abstract
A pump device for a cooling circuit of an internal combustion engine of a commercial or motor vehicle includes two electric pumps in parallel, each of which includes a switchable backflow valve in a suction line, so that the electric pumps can be operated selectively individually or in parallel.