초록 ▼

In accordance with the teachings of the present invention, a hydraulic actuator is described which is operable to generate forces. The hydraulic actuator includes a pressure cylinder as well as a piston disposed within a pressure cylinder and being operable to divide the pressure cylinder into first

In accordance with the teachings of the present invention, a hydraulic actuator is described which is operable to generate forces. The hydraulic actuator includes a pressure cylinder as well as a piston disposed within a pressure cylinder and being operable to divide the pressure cylinder into first and second portions. The hydraulic actuator also includes a piston rod mechanically communicating with the piston and being operable to impart movement to the piston. Finally, the hydraulic actuator includes variable restriction valves for controlling the pressure on both sides of the piston substantially independent of the velocity of the piston within the pressure cylinder.

대표청구항 ▼

A hydraulic actuator being operable to generate damping forces, said hydraulic actuator being in fluid communication with a source of fluid, comprising: a pressure cylinder; a piston disposed in said pressure cylinder being operable to divide said pressure cylinder into first and second portions, sa

A hydraulic actuator being operable to generate damping forces, said hydraulic actuator being in fluid communication with a source of fluid, comprising: a pressure cylinder; a piston disposed in said pressure cylinder being operable to divide said pressure cylinder into first and second portions, said piston having first and second sides; a piston rod mechanically communicating with said piston, said piston rod being operable to impart movement to said piston; and means for controlling the pressure on each side of said piston substantially independent from the velocity of said piston within said pressure cylinder by controlling the flow of damping fluid between said source and said hydraulic actuator, said means for controlling the pressure on each side of said piston being operable to control the position of said piston in said pressure cylinder.