| 摘要 |
<p>A clip valve for limiting the stroke of an exhaust-valve operating hydraulic actuator piston (20) in a compression release engine brake has a plunger (60) which follows the actuator piston down until the motion of the plunger is stopped by a retaining ring (80) in a bore (72) in which the plunger reciprocates. When the plunger is thus stopped, an aperture (24) in the slave piston (20) is uncovered, thereby allowing pressurized hydraulic fluid to escape from the actuator piston cylinder (40) 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.</p> |
