| 摘要 |
A process and apparatus are provided to maximize the retarding horsepower of a compression release engine retarder driven from the intake or exhaust valve pushtubes or the fuel injector pushtubes throughout the operating speed range of the engine without exceeding the maximum allowable loading of the pushtubes. The apparatus includes a timing advance mechanism incorporated into each slave piston comprising a biasing means responsive to the hydraulic pressure above the slave piston which determines the position of a moveable stop means whereby the timing advance of the slave piston is continuously varied in response to the hydraulic pressure above the slave piston. The process includes the steps of reducing the flow of fuel to the cylinder, increasing the hydraulic pressure above the slave piston, compressing a biasing means in response to the hydraulic pressure above the slave piston, and moving a stop means relative to the slave piston in response to the compression of the biasing means thereby continuously varying the timing advance of the slave piston.
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