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:
Dec. 11, 2018
Filed:
Jul. 22, 2015
Robert Bosch Gmbh, Stuttgart, DE;
Evgenij Skrynski, Stuttgart, DE;
Marian Kacmar, Ostfildern, DE;
Martin Kling, late of, Penzberg, DE;
Oliver Laforsch, Stuttgart, DE;
Sando Kunath, Stuttgart, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
Pump units include a rotatably arranged rotor () that is driven by a drive shaft (), wherein the drive shaft () has a first bearing section () facing towards the rotor (), and a second bearing section () facing away from the rotor (). The first bearing section () is a first sliding bearing (), and the second bearing section () is a second sliding bearing (). The load-bearing capacity of the first sliding bearing () is limited by a predetermined working pressure in the pump unit. In the pump unit according to the invention, the load-bearing capacity of the sliding bearing () facing towards the rotor () is increased. According to the invention, the diameter of the first bearing section () of the drive shaft () and the first sliding bearing () is larger than the diameter of the second bearing section () and the second sliding bearing ().