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:
Jun. 16, 2020
Filed:
Apr. 18, 2016
Robert Bosch Gmbh, Stuttgart, DE;
Guenter Escher, Oberstdorf, DE;
Gerhard Stransky, Immenstadt, DE;
Ben Ferguson, Rettenberg, DE;
Dietmar Kratzer, Tamm, DE;
Franz Mayer, Haldenwang, DE;
Michael Specker, Blaichach, DE;
Stefan Achilles, Immenstadt/Stein, DE;
Bernd Lutz, Kempten, DE;
Alice Schacherl, Burgberg, DE;
Anton Paweletz, Fellbach, DE;
Hermann Bamberger, Immenstadt, DE;
Roland Heller, Immenstadt, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A pump device, in particular for a brake system of a motor vehicle, includes two hydraulic chambers, a linear drive, and a pump piston. Each of the chambers has at least two fluid connections. The pump piston interacts with the chambers. The linear drive is embodied as a reluctance drive and includes a longitudinally movable armature, a housing-fastened stator that is configured to receive current, and at least one spring element. The at least one spring element is associated with the armature, and is configured to counteract a drive force of the reluctance drive. The armature is connected to the pump piston.