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. 14, 2018
Filed:
Jun. 04, 2013
Alfred Kärcher Gmbh & Co. KG, Winnenden, DE;
Sven Dirnberger, Steinheim, DE;
Timo Spengler, Weil der Stadt, DE;
Rudi Bareiter, Burgstetten, DE;
Markus Fischer, Winnenden, DE;
Juergen Kloepfer, Burgstetten, DE;
Alexander Rubbe, Winnenden, DE;
Alfred Kärcher GmbH & Co. KG, Winnenden, DE;
Abstract
A motor pump unit for a high-pressure cleaning appliance is provided, in which the cleaning liquid conveyed by the pump assembly is used for cooling the motor, comprising a motor housing which surrounds the motor, and a cooling channel which surrounds the motor and through which the cleaning liquid can flow for heat dissipation. To provide a motor pump unit having a level of electrical safety which is higher than that of a conventional motor pump unit, the cooling channel surround the motor housing, and the motor pump unit comprise at least one thermally conductive spacer element by way of which the cooling channel is spaced from the motor housing. A high-pressure cleaning appliance is also provided.