Portable hydraulic system
First Claim
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1. A self-contained, mobile hydraulic system comprising:
- a housing;
a hydraulic pump;
an electric motor linked to the pump;
a self-contained electricity source coupled to the pump;
a reservoir fluidly coupled to the pump; and
a control system to vary the motor speed,wherein the control system comprises a first current path for use with load operations and a second current path for use with no-load operations whereby a control system switch selectively directs current to either the first current path or the second current path, and wherein the pump, the motor, the electricity source and the reservoir are secured to the housing.
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Abstract
Disclosed is a mobile hydraulic system with a hydraulic pump, which is powered by a battery powered motor and fed from a hydraulic reservoir, whereby the pump, the battery, the motor and the hydraulic reservoir are a compact, portable hydraulic unit, to which a working tool, which is separated from the portable hydraulic unit and is exchangeable, can be connected via a hydraulic connecting line of the hydraulic pump.
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Citations
17 Claims
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1. A self-contained, mobile hydraulic system comprising:
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a housing; a hydraulic pump; an electric motor linked to the pump; a self-contained electricity source coupled to the pump; a reservoir fluidly coupled to the pump; and a control system to vary the motor speed, wherein the control system comprises a first current path for use with load operations and a second current path for use with no-load operations whereby a control system switch selectively directs current to either the first current path or the second current path, and wherein the pump, the motor, the electricity source and the reservoir are secured to the housing. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A self-contained, mobile hydraulic system comprising:
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a housing; a hydraulic pump; an electric motor linked to the pump; a self-contained electricity source coupled to the pump; a reservoir having a biased accumulator fluidly coupled to the pump; a physically responsive electrical switch for selectively energizing and de-energizing the motor; and a control system to vary the motor speed having a control system switch operatively coupled to the pump and actuated by fluid pressure generated by the pump wherein the control system further has a first current path for use with load operations and a second current path for use with no-load operations whereby the control system switch selectively directs current to either the first current path or the second current path, and wherein the pump, the motor, the electricity source, the reservoir, and the control system are secured to the housing. - View Dependent Claims (17)
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Specification