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.:

US 9429051 B1

PDF
Full Text
Expired
Date of Patent:
Aug. 30, 2016

Filed:

Nov. 25, 2014
Applicant:

Pacbrake Company, Blaine, WA (US);

Inventors:

Vincent Meneely, Fort Langley, CA;

Robert Price, Manchester, CT (US);

Assignee:

Pacbrake Company, Blaine, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02D 13/04 (2006.01); F01L 13/06 (2006.01); F01L 1/18 (2006.01); F01L 1/26 (2006.01);
U.S. Cl.
CPC ...
F01L 13/06 (2013.01); F01L 1/18 (2013.01); F01L 1/181 (2013.01); F01L 1/26 (2013.01); F01L 13/065 (2013.01); F02D 13/04 (2013.01);
Abstract

A compression-release brake system comprises an exhaust rocker arm, an actuation piston slidable in a piston bore in the exhaust rocker arm so as to press an exhaust valve, a supply conduit formed within the exhaust rocker arm, and an exhaust valve reset device mounted to the exhaust rocker arm. The actuation piston defines an actuation piston cavity within the actuation piston bore between the piston bore and the actuation piston. The exhaust valve reset device includes a reset check valve disposed between the supply conduit and the actuation piston cavity to hydraulically lock the actuation piston cavity by closing the reset check valve when a pressure of the hydraulic fluid within the actuation piston cavity exceeds the pressure of the hydraulic fluid in the supply conduit. The reset check valve is biased closed by the pressure of the hydraulic fluid within the actuation piston cavity during the brake-on mode.


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