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:
Jul. 16, 2013
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 AG & Co. KG, Herzogenaurach, DE;
Abstract
A switchable device for supplying at least one consumer of an internal combustion engine with pressure, comprising: a cavity formed inside a camshaft; a first displacement element arranged in the cavity having a first pressure surface which at least partially delimits a first accumulator chamber together with the wall of the cavity; a first energy accumulator which interacts with the first displacement element; a locking mechanism by which the first displacement element can be locked in the second end position; a switching mechanism which can be actuated by an actuator, having a switch element that can be brought into at least two switching positions; a second displacement element arranged in the cavity having a second pressure surface which at least partially delimits a second accumulator chamber together with the wall of the cavity; a second energy accumulator which interacts with the second displacement element; the first accumulator chamber and the second accumulator chamber communicating with each other and being connectible to a pressure source in a fluid-conducting manner.