Compact volumetric pump
AssigneeDana Italia S.R.L.
InventorsMichelangelo MARINI, Matteo DALLAPICCOLA, Pier Paolo RINALDI
Life of this patent
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Abstract
Methods and systems for a mechanically driven pump are provided. The mechanically driven pump may apply a piston simultaneously to operate as a guillotine blocking valve and a component to transfer motive force. A spring may apply a force to the piston to oppose a force that is applied to the piston via a cam lobe. The mechanically driven pump exhibits a differential pressure at a calibrated orifice during two working phases of the pump (expansion and compression), which provides for a non-zero volumetric efficiency of the mechanically driven pump.
Claims20
A pump, comprising:
- a spring;
- a piston configured to receive the spring;
- and
- a pump body including a cylindrical cavity configured to receive the spring.
A method for a pump, comprising:
- rotating a cam lobe to move a piston and selectively extend and compress a spring according to a position of the cam lobe relative to the piston;
- and
- pumping a liquid while blocking a flow of the liquid via the piston.
A self-priming pump, comprising:
- a cam lobe;
- a spring;
- a piston configured to receive the spring and interact with the cam lobe;
- and
- a pump body including a cylindrical cavity configured to receive the spring.
Dependencies are inferred from the claim text.