Electrically controlled hydraulic fluid valves (100) are used to produce the selective release of hydraulic fluid from the hydraulic linkages (64).

It had two separate power systems, each with their own hydraulic systems.

Fillers Several models of hydraulic fillers: 12, 20, 30 and 50 litres.

Electrically controlled hydraulic fluid valves (100) are used to produce the selective release of hydraulic fluid from the hydraulic linkages (64).

It had two separate power systems, each with their own hydraulic systems.

In said pump, the plungers (23) and (24) are not only held in position against a camshaft (2) by means of a spring (19), but are also held against said camshaft (2) with the aid of a hydraulic system.

Removing a divider (22) locks two adjacent pushers (14) together thereby causing the two pushers (14) to push in unison and prevents product from slipping between the adjacent pushers (14).

The invention concerns a remote control device, in particular a hydraulic manipulator, comprising magnetic means -armature (28), magnetised member (27)- for retaining the cam (20) controlling the thrusters (18) in a maximum tilting position.

The hydraulic circuit includes a hydraulic pump, a hydraulic motor, and a hydraulic fluid reservoir containing hydraulic fluid.

The moving mechanism (6) comprises a hydraulic cylinder (8) with two pins (12, 13), two pairs of rotatable stops (17, 18), a guiding arrangement (30) and two pushers.

A hydraulic engine with a water wheel is designed as non-polluting underwater generating plant.

The plunger pieces have tapered outer surfaces.

The push rods (16) consists of hinged push rods, which make it possible to maintain the same conditions for application of the push rods against the axle-box when the axles are steered around bends.

Once the threaded rod has been inserted between the plunger pieces and released, the plunger pieces are pushed toward the narrow bore end.

The hydraulic pump (22) supplies hydraulic fluid to the hydraulic cylinder (15).