Hydraulic controlling actuator for actuating gas shuttle valve in combustion cylinder of internal-combustion engine, has three pressure chambers, where third pressure chamber is formed by fluid chamber

摘要

The hydraulic controlling actuator has three pressure chambers (25,26,27), where the third pressure chamber is formed by a fluid chamber. The third pressure chamber is permanently acted with fluid low pressure that is opposite to fluid high pressure. A permanent fluid inlet opening (40) lies at the fluid high pressure, and is attached in a cylinder wall of an operating cylinder (22). A fluid flow channel (41) is attached to a ring wall if a ring piston (24).