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:
Oct. 30, 2012
Filed:
May. 27, 2009
Eugen Schmidt, Merbelsrod/Thueringen, DE;
Franz Pawellek, Lautertal, DE;
Eberhard Geissel, Kuenzell, DE;
Dirk Hagen, Eisfeld, DE;
Michael Rexhaeuser, Masserberg/Fehrenbach, DE;
Eugen Schmidt, Merbelsrod/Thueringen, DE;
Franz Pawellek, Lautertal, DE;
Eberhard Geissel, Kuenzell, DE;
Dirk Hagen, Eisfeld, DE;
Michael Rexhaeuser, Masserberg/Fehrenbach, DE;
Geraete- und Pumpenbau GmbH Dr. Eugen Schmidt, Merbelsrod / Thueringen, DE;
Abstract
A controllable coolant pump for internal combustion engines is driven by a belt pulley. The controllable coolant pump has a hydraulically actuated gate valve connected to a ring piston. An axial piston pump is disposed in the pump housing and is driven and 'operated' by means of a swashplate having a suction groove and disposed on the back side of the flywheel. The 'pumped volume flow' of the pump is controlled in a defined manner by means of a solenoid valve such that precise displacement of the hydraulically actuated gate valve is ensured.