Motors: expansible chamber type inventions 02/06

20060037465 - Hydraulic machine: The invention concerns a hydraulic machine, in particular a hydraulic motor, comprising: a body (1), a piston (9) adapted to slide in reciprocating motion in a cylindrical housing (7) of the body, a chamber (C1, C2) being formed on either side of the piston, hydraulic switching means for feeding and...

20060037466 - Method and apparatus for controlling air cylinder: This invention improves response by preventing a steady-state difference and a disturbance from occurrence even when the volume of a pressure chamber of an air cylinder varies dramatically. In a method for controlling an air cylinder such that air is supplied to and exhausted from pressure chambers of the air...

20060037467 - Servo-pneumatic actuator: A positioning system includes an actuator, valve (preferably pneumatic), position sensor and an electronic valve controller, integrated in a single unit. Continuously variable setpoints are possible within the range of operation. A preferred control circuit includes a signal converter, a ramp generator to smooth the shape of the command or...

20060037468 - Pneumatic servo unit, method for making same and device: A pneumatic servomotor for an assisted braking including an emergency-braking assistance device to increase the assistance ratio when an input force is applied to the control rod that is higher than a predetermined value through an extrusion of the reaction disk. The device (D) has a plastically-deformable first member (68)...

20060037469 - Vacuum booster: A vacuum booster which moderates a retraction speed of a valve seat member to restrain a contact noise between a key member retracting in a unitary manner with the valve seat member and a flange surface of a plunger. The vacuum booster includes a noise restriction device....

20060037470 - Fluid circurt and industrial truck having a fluid circuit: The invention relates to a fluid circuit, in particular a hydraulic circuit for a load displacement device of an industrial truck, having a fluid supply line (118a, 118b, 118c), through which a fluid can be conveyed from a fluid tank (112) by means of a fluid pump (116) to at...

20060032368 - Hydraulic unit: The invention relates to a hydraulic unit with a piston (2) contained in a hydraulic cylinder (1), wherein the piston (2) can be moved from a first end position (E1) located at one end of the hydraulic cylinder (1) to a second end position (E2) located at the opposite other...

20060027092 - Hydraulic system with an actuator having independent meter-in meter-out control: A fluid circuit is provided to independently control the flow of fluid into and out of each end of an actuator. This is accomplished by having two different independently controlled valves controlling the flow of fluid into and out of one end of the actuator and by having two other...