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. 04, 2015
Filed:
Sep. 08, 2011
Ruediger Block, Korntal-Muenchingen, DE;
Nils Steinbach, Bietigheim-Bissingen, DE;
Werner Hess, Stuttgart, DE;
Ianislav Krastev, Ludwigsburg, DE;
Helmut Schneider, Aichtal, DE;
Steffen Strauss, Rutesheim, DE;
Uwe Kulow, Ludwigsburg, DE;
Christof Ott, Asperg, DE;
Ruediger Block, Korntal-Muenchingen, DE;
Nils Steinbach, Bietigheim-Bissingen, DE;
Werner Hess, Stuttgart, DE;
Ianislav Krastev, Ludwigsburg, DE;
Helmut Schneider, Aichtal, DE;
Steffen Strauss, Rutesheim, DE;
Uwe Kulow, Ludwigsburg, DE;
Christof Ott, Asperg, DE;
ROBERT BOSCH GMBH, Stuttgart, DE;
Abstract
A device is described for controlling a hydraulic accumulator of a hydraulic system, for example a vehicle transmission, having a valve device which may connect and disconnect an accumulator-side port of the device to and from a system-side port, the valve device including at least one first check valve which is situated hydraulically between the accumulator-side port and the system-side port, and which is blocking in the direction of the system-side port, the valve device also including an electrically actuated control valve which is situated between a control port of the first check valve and the accumulator-side port in such a way that the control valve may hydraulically unblock the first check valve, using the pressure prevailing at the accumulator-side port.