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. 17, 2014
Filed:
Nov. 17, 2010
Mathias Boegershausen, Puschendorf, DE;
Michael Busse, Herzogenaurach, DE;
Eduard Golovatai-schmidt, Hemhofen, DE;
Andreas Strauss, Forchheim, DE;
Mathias Boegershausen, Puschendorf, DE;
Michael Busse, Herzogenaurach, DE;
Eduard Golovatai-Schmidt, Hemhofen, DE;
Andreas Strauss, Forchheim, DE;
Schaeffler Technologies GmbH & Co. KG, Herzogenaurach, DE;
Abstract
A switchable device for supplying at least one consumer of an internal combustion engine with pressure. The device includes the following: a cavity formed inside a camshaft; a displacement element arranged in the cavity, which element can be displaced between a first end position and a second end position, the displacement element having a pressure surface which at least partially delimits a fluid connectible accumulator chamber together with the wall of the cavity, the accumulator chamber being connectible to a pressure source in a fluid-conducting manner; an energy accumulator interacts with the displacement element, the displacement element being displaceable against the force of the energy accumulator from the first end position into the second end position under the effect of pressure applied to the accumulator chamber; a locking mechanism by which the displacement element can be locked in the second end position; a switching mechanism which can be actuated by an actuator, has a switch element that can be brought into at least two switching positions and interacts with the locking mechanism in such a manner that the locked state of the displacement element is maintained in a first switching position and is released in a second switching position.