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:
Apr. 02, 2013
Filed:
May. 06, 2011
Oliver Schnell, Veitsbronn, DE;
Oliver Schnell, Veitsbronn, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A rocker arm for a tappet pushrod valve train, which has a contact surface for a gas exchange valve on an underside at one end and a first bore in which a hydraulic lash adjusting element is arranged at another end. A second bore extends transverse through the rocker arm, between the ends. From the second bore, a passage leads to the first bore. A venting passage extends from a bottom of the bore at the another end and has an outlet aligned with the primary passage. A secondary passage branches from the venting passage and has an opening that extends to an upper side of the rocker arm and is situated in a longitudinal channel. The channel extends along the upper side and into a region on the one end. From the region, the hydraulic medium can be routed through an end passage to the contact surface.