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:
Nov. 21, 1989
Filed:
Jan. 13, 1989
Markus Dietrich, Fellbach-Oeffigen, DE;
Frank Berger, Leutenbach, DE;
Mercedes-Benz AG, Stuttgart, DE;
Abstract
A hydraulic play compensating element adapted to be positioned in the valve train of an internal-combustion engine is described which comprises a cylinder part closes at one end and a piston part slidable longitudinally in the latter. The piston part contains a supply chamber which is pressurized by lubricating oil from the lubricating oil circuit and which is separated from a pressure chamber by a connecting duct controlled by a valve. In order to switch off the play compensating function of the play compensating element during engine braking service, a shut-off valve is provided in the supply chamber for closing or opening the connecting duct as a function of the lubricating oil pressure in the supply chamber.