FLUID-PRESSURE STATION Russian patent published in 1996 - IPC

FIELD: mechanical engineering. SUBSTANCE: each of two boosters consists of housing provided with two pistons to form one additional air space and two controlled air spaces connected with a pressure source and exhaust pipe through its two-position air distributor. Each of the spaces for controlling the air distributor is connected with respect to control space of the other boosters. The inlets of the units of controlled check valves are in communication with the hydraulic tank. The outlet is in communication with the respective hydraulic spaces provided with rod-pistons of the booster. An opening is provided in the center of each housing. The opening connects the additional air space with the atmosphere. The first two spaces of the units for controlling the check valve are in communication with the control spaces of one of the boosters. The second two spaces is in communication with the control spaces of the other booster. The hydraulic spaces are interposed between the pistons of each booster in the sleeve rigidly secured to the pistons for permitting movement with respect to the rod-piston rigidly secured to the housing from both sides. EFFECT: improved design. 1 dwg