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:
Mar. 21, 2000
Filed:
Sep. 29, 1998
Applicant:
Inventors:
Zdenek Meistrick, Bloomfield, CT (US);
Vincent Pitzi, South Windsor, CT (US);
Assignee:
Diesel Engine Retardes, Inc., Wilmington, DE (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F02D / ; F01L / ;
U.S. Cl.
CPC ...
123321 ; 123 9012 ;
Abstract
The present invention relates to a co-axial master piston for use in providing hydraulic fluid to effectuate a compression release braking function and hydraulic fluid to effectuate an exhaust gas recirculation function. In particular, the coaxial master piston includes an inner master piston driven by an exhaust cam to provide the hydraulic force to cause the compression release braking function. An outer piston, driven by the same exhaust cam, provides the hydraulic force to cause the EGR function during positive power operation of the engine and during compression release braking when required.