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:
Feb. 17, 2004
Filed:
Jun. 13, 2002
Applicant:
Inventors:
Donald J. McCarthy, Wethersfield, CT (US);
Samuel H. Pruden, East Hartford, CT (US);
Assignee:
Diesel Engine Retarders, Inc., Christiana, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D 1/304 ;
U.S. Cl.
CPC ...
F02D 1/304 ;
Abstract
A method and rocker arm assembly for actuating an engine valve are disclosed. The rocker arm may include an integrated hydraulic circuit used to control a lost motion piston. A reset piston may be included in the rocker arm to selectively reset the position of the lost motion piston. A control piston may also be included in the rocker arm to selectively lock the reset piston into a reset position. The rocker arm assembly may be used to achieve compression-release or bleeder braking, main intake, main exhaust, brake gas recirculation, and/or exhaust gas recirculation valve events.