Self priming hydraulic pump and circuit
AssigneeTonand Inc.
InventorAntonio Cannata
Life of this patent
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Abstract
A closed loop, self-priming hydraulic system comprising a reciprocating, hydraulic piston pump, a high pressure loop and a low pressure loop is disclosed. The reciprocating, hydraulic piston pump comprises a first piston operating in a first piston bore and a second piston operating in a second piston bore. The high pressure loop is defined by a high pressure accumulator that is fluidly connected to an inlet of the first piston bore and an outlet of the second piston bore. The low pressure loop is defined by a low pressure accumulator that is fluidly connected to an inlet of the second piston bore and an outlet of the first piston bore. The closed-loop, self-priming hydraulic system manipulates a hydraulic fluid to convert energy from one form to another.
Claims11
A self-priming hydraulic system comprising:
- a reciprocating hydraulic pump for pumping non-compressible fluid, the reciprocating hydraulic pump comprising:
- a first piston operable to reciprocate within a first piston bore, the first piston bore co-operating with a top surface of the first piston to define a first fluid cavity, the first piston bore providing a first fluid inlet and a first fluid outlet disposed on the first piston bore and fluidly coupled to the first fluid cavity, and
- a second piston operable to reciprocate within a second piston bore, the second piston bore co-operating with a top surface of the second piston to define a second fluid cavity, the second piston bore providing a second fluid inlet and a second fluid outlet disposed on the second piston bore and fluidly coupled to the second fluid cavity,
- a low pressure loop including a low pressure accumulator fluidly coupled between the first fluid outlet and the second fluid inlet of the hydraulic pump, and
- a high pressure loop including a high pressure accumulator fluidly coupled between the second fluid outlet and the first fluid inlet of the hydraulic pump.
A self-priming hydraulic system comprising:
- a hydraulic pump, the hydraulic pump comprising:
- a first piston operable to reciprocate within a first piston bore, the first piston bore co-operating with a top surface of the first piston to define a first fluid cavity, the first piston bore providing a first fluid inlet and a first fluid outlet disposed on the first piston bore and fluidly coupled to the first fluid cavity, and
- a second piston operable to reciprocate within a second piston bore, the second piston bore co-operating with a top surface of the second piston to define a second fluid cavity, the second piston bore providing a second fluid inlet and a second fluid outlet disposed on the second piston bore and fluidly coupled to the second fluid cavity, and
- a low pressure loop defined by a low pressure accumulator fluidly coupled to the first fluid inlet and the first fluid outlet of the hydraulic pump with
- a high pressure loop defined by a high pressure accumulator fluidly coupled to the second fluid inlet and the second fluid outlet of the hydraulic pump utilizing a first fluid support coupling the first fluid outlet with the second fluid outlet via a first valve and a second fluid support coupling the first fluid inlet with the second fluid inlet via a second valve.
Dependencies are inferred from the claim text.