Patent ID: 7287497

Claim:
A valve actuation system for a poppet valve, which is selectively movable between a closed position and an open position, the valve actuation system comprising: a reservoir operable to contain a fluid; a first hydraulic device in selective fluid communication with said reservoir; a second hydraulic device operable to bias the poppet valve toward the open position from the closed position, said second hydraulic device being in selective fluid communication with said reservoir and said first hydraulic device; an accumulator in selective fluid communication with said first hydraulic device and said second hydraulic device; wherein said first hydraulic device is operable to communicate said fluid to said accumulator for at least a portion of the movement of the poppet valve from the closed position to the open position; and wherein said accumulator is operable to communicate said fluid to said second hydraulic device to bias the poppet valve toward the open position from the closed position.