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:
Jan. 01, 2002
Filed:
Sep. 18, 2000
Richard J. Little, Jr., Montgomery, MA (US);
Diesel Engine Retarders, Christiana, DE (US);
Abstract
The present invention is directed to a control value which incorporates the functions of both a shuttle valve and a check valve into a single structure for use in a lost motion engine brake system. In response to a supply of hydraulic fluid from switched low pressure supply circuit , control valve body of control value may index within control valve bore , such that hydraulic fluid flows through upper annulus , first horizontal bore , first vertical bore , middle annulus and out through lashless fluid supply circuit and accumulator control circuit to acuate engine valve . In an embodiment for clipping/rest of the valve actuating piston , clipping/reset spool provided in rocker shaft . In response to rotational or linear motion, spool annuluses on clipping/reset spool move to open and close clipping reset/passageway and accumulator control circuit , thereby providing clipping of piston