Internal Combustion Engine Independent Valve Actuator

摘要

A device and method for double actuating, by pressure differential, a valve of a combustion chamber of an internal combustion engine, wherein the double actuating device comprises an actuator piston displaceably arranged in an actuator cylinder between two chambers of inversely varying volume, mechanically attached to the stem of said valve. The valves are double actuated independently of engine operation, the method allowing for variation in timing, duration, and lift under an electronically controlled fluid circuit, using alterable constants to allow for modifiable operating modes, also allowing reprogramming of said electronics to provide for in-place upgrades.

主权项

1. A device for controlling the movement of an intake or exhaust valve of an internal combustion engine combustion chamber, the control device comprising: a double acting actuator piston, displaceably arranged within a cylinder closed at each end so as to form two chambers of inversely variable volume, mechanically affixed to the valve stem so as to influence the position and movement of the valve via chamber-pressure differential directly or through a lever arm, and a fluid circuit for controlling the inlet and outlet of pressurized fluid to both the upper and lower chambers formed by the actuator piston and cylinder, the upper chamber being located relatively farther away from the engine's combustion chamber.