Dual pneumo-hydraulic pump unit
AssigneeDrausuisse Brasil Comercio E Locacao De Unidades Hidraulicas Inteligentes S.A.
InventorErcio Miguel Nema
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Abstract
A dual pneumo-hydraulic pump unit is provided. The dual pneumo-hydraulic pump unit includes a central pneumatic cylinder that works in the center of two hydraulic piston pumps. The two hydraulic piston pumps are mounted parallel to the plunger of the central pneumatic cylinder, positioned one on each side. Compressed air or other pressurized gases are used to move the central pneumatic cylinder, as a source of motor energy to pump oil under pressure to a hydraulic pressure accumulator for later activation of hydraulic actuators.
Claims9
A dual pneumo-hydraulic pump unit characterized by comprising:
- two hydraulic piston pumps comprising liners;
- a central pneumatic cylinder comprising a plunger;
- a set of hydraulic rods;
- a hydraulic pressure accumulator;
- hydraulic plungers;
- bearings;
- an oil reservoir;
- pneumatic directional valves;
- upper hydraulic holes;
- and
- upper hydraulic check valves;
- wherein the central pneumatic cylinder works in the center of the two hydraulic piston pumps comprising liners;
- wherein the two hydraulic piston pumps comprising liners are mounted parallel to the plunger of the central pneumatic cylinder, positioned one on each side;
- and
- wherein the compressed air or other pressurized gases are used to move the central pneumatic cylinder, as a source of motor energy to pump oil under pressure to the hydraulic pressure accumulator for later activation of the hydraulic actuators.
Dependencies are inferred from the claim text.