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. 11, 2019
Filed:
Jan. 26, 2015
Schaeffler Technologies Ag & Co. KG, Herzogenaurach, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A camshaft adjuster for an internal combustion engine, having a stator, a rotor mounted rotatably in the interior of the stator, and a locking cover connected to the stator. A hydraulically actuatable locking element is received in the rotor and engages into the locking cover in at least one blocking position, so as to block a rotation of the rotor relative to the stator, and is arranged in at least one unlocking position so that the rotor can be rotated relative to the stator. A blocking pin acts in at least one hydraulic channel connected hydraulically to the locking element so that the hydraulic channel is connected to a recovery tank or is disconnected from the recovery tank depending on the position of the blocking pin, wherein the hydraulic channel has a first channel section in the locking cover, and the first channel section and the blocking pin are arranged so that the blocking pin seals the hydraulic channel from the recovery tank in at least one first end position, in a first pressure range which prevails in the hydraulic channel by way of contact with the locking cover.