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. 03, 2012
Filed:
Aug. 12, 2009
Walter Schiffhauer, Leutenbach, DE;
Lanfranco Pol, Quistello Mn, IT;
Walter Schiffhauer, Leutenbach, DE;
Lanfranco Pol, Quistello Mn, IT;
Alfred Kaercher GmbH & Co., KG, Winnenden, DE;
Abstract
The invention relates to a motor-pump unit having an electric motor and a pump, the pump having a suction inlet and a pressure outlet, and the electric motor comprising a motor housing which is enclosed by a cooling housing, whereby a cavity is formed, it being possible for cooling liquid to be fed to the cavity via a cooling-housing inflow and to be conducted away therefrom via a cooling-housing outflow, and the cooling-housing outflow being in flow connection with the suction inlet. In order to develop the motor-pump unit such that, if required, a flow connection can easily be made from the cooling-housing inflow to the suction inlet via the cavity and the cooling-housing outflow, it is proposed that the motor-pump unit has a connecting device which is disposed laterally alongside the pump and has a first connection, which is connected in a releasable manner to the cooling-housing inflow via a first flow channel, and a second connection, which is connected in a releasable manner to the cooling-housing outflow via a second flow channel and is connected to the suction inlet.