An apparatus and method for controlling an actuator system having an electrical actuator in hydraulic communication with a hydraulic actuator are described.

The pressure cylinder is of the type generally designated a rodless cylinder.

An actuator using a fluid cylinder such as an air cylinder, where rigidity can be given to the fluid cylinder by a simple construction.

Figure 7.8 Example of apparatus for measuring elastic deflection

The supporting device (20) comprises: a telescopic outrigger (201), a vertical cylinder, a horizontal cylinder, a rotating outrigger (203), a rotating outrigger cylinder, and a swing drive unit (204).

The invention concerns a fluid pressure cylinder (10).

The hydraulic cylinder has a cylinder rod 110 in which one end is provided with a positioning mechanism 120 for adjusting the position of the cylinder rod in the axial direction.

A hydraulic cylinder is connected to the hub.

The hydraulic cylinder unit (3) consists of a hydraulic cylinder (4), a reversing valve (5) and a one-way valve (6).

The energy transducing device is a linear power generator, a rotary power generator driven by rack and pinions, a hydraulic oil cylinder, a pneumatic cylinder, or a water hydraulic cylinder.

The invention also relates to hydraulic cylinder, a shock absorber and use in a hydraulic cylinder and a shock absorber.

In some embodiments, a device can include a first hydraulic cylinder, a second hydraulic cylinder, and a hydraulic actuator.

Disclosed is a multi-stage and single-action hydraulic cylinder and engineering machinery having same.

A hydraulic cylinder (12) is formed with a piston cup assembly (32) dividing the cylinder into first and second fluid chambers (36, 38).