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:
Dec. 27, 1988
Filed:
Dec. 15, 1987
Raymond N Quenneville, Suffield, CT (US);
Vincent J Pitzi, South Windsor, CT (US);
The Jacobs Manufacturing Company, Bloomfield, CT (US);
Abstract
The invention is applicable to an internal combustion engine of the four-stroke cycle type equipped with a compression release engine retarder capable of producing one compression release event and one bleeder retarding event in each cylinder during every two revolutions of the engine crankshaft. This is accomplished by a novel articulated rocker arm assembly including a rocker member and a latch member in which the rocker member, engaged by the exhaust pushtube, is disengaged from the latch member, which acts against the crosshead, after a compression release event has occurred, but remains engaged if a compression release event does not occur. When the latch member is disengaged from the rocker member, the exhaust valves are held in a partially open position to produce a bleeder retarding event. A trigger valve acutated by the exhaust pushtube and rocker member vents the reatarder high pressure hydraulic system to initiate the bleeder retarding event.