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:
Oct. 23, 2007
Filed:
Jan. 25, 2007
Richard Best, Garden City, MI (US);
Florin Bugescu, Canton, MI (US);
Debora Manther, Royal Oak, MI (US);
Richard Best, Garden City, MI (US);
Florin Bugescu, Canton, MI (US);
Debora Manther, Royal Oak, MI (US);
Schaeffler KG, Herzogenaurach, DE;
Abstract
A device () for the hydraulic lash adjustment for several identically acting gas-exchange valves per cylinder of a valve train of an internal combustion engine is provided, the device ()including a common housing () with directly adjacent pressure pistons () provided corresponding to the number of identically acting gas-exchange valves. Each pressure piston () moves relative to the housing in an axial direction in a separate guide () in the housing (), and also has a support () for an at least indirect contact with the corresponding gas-exchange valve on a distal end () away from the housing, and a non-return valve () in the region of a housing bottom () wherein a separate high-pressure chamber () is associated with each pressure piston () in which the non-return valve () opens. The high-pressure chamber () extends axially between the bottom () of the pressure piston () and a base () of the housing (), and the pressure pistons () arranged in the common housing () have a common reservoir.