Stroke limiter for hydraulic actuator pistons in compression rel

Details Stroke limiter for hydraulic actuator pistons in compression rel Stroke limiter for hydraulic actuator pistons in compression rel

1995-01-25

1996-04-30

Ryznic, John E.

Motors: expansible chamber type

Working member position responsive motive fluid control

Venting expanding chamber

123 9012, 123321, F15B 1522, F02D 1304

Patent

active

055114601

ABSTRACT:
A clip valve for limiting the stroke of an exhaust-valve-operating hydraulic actuator piston in a compression release engine brake has a plunger which follows the actuator piston down until the motion of the plunger is stopped by a retaining ring in a bore in which the plunger reciprocates. When the plunger is thus stopped, an aperture in the slave piston is uncovered, thereby allowing pressurized hydraulic fluid to escape from the actuator piston cylinder and preventing further downward motion of the actuator piston. The clip valve apparatus is constructed to facilitate assembly of the plunger and retaining ring in the bore, as well as to provide secure and fail-safe retention of those components in the bore. The parts of the clip valve are simplified and preferably also reduced in number as compared to the prior art.

REFERENCES:
patent: 3220392 (1965-11-01), Cummins
patent: 3236157 (1966-02-01), Lovell et al.
patent: 3405699 (1968-10-01), Laas
patent: 4399787 (1983-08-01), Cavanagh
patent: 4423712 (1984-01-01), Mayne et al.
patent: 4742806 (1988-05-01), Tart, Jr. et al.
patent: 4898128 (1990-02-01), Meneely
patent: 5146890 (1992-09-01), Gobert et al.
patent: 5161501 (1992-11-01), Hu
patent: 5201290 (1993-04-01), Hu

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