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:
Sep. 02, 2003
Filed:
Sep. 07, 2001
GPM Gerate-und Pumpenbau GmbH, Merbelsrod, DE;
Abstract
An electrically powered coolant pump particularly suited for an internal combustion engine has a pump housing having an elongate shape which encloses a pump wheel on the inlet side and subsequently downstream therefrom encloses an electric motor. An annular flow passage for the coolant is formed between the pump housing and the outside of the electric motor. The electric motor is encapsulated against the coolant, and the structural component of electric motor and pump wheel is retained in the axial range of the electric motor with at least one web in the pump housing through which connections for driving the electric motor are routed. The electric motor is cooled by the coolant flowing by, and may therefore be operated at very high rotational speeds, so that a small structural size and a low weight may be realized. Widely varying installation locations for the coolant pump are therefore possible.