Reversible volume oil pump
AssigneeInternational Truck Intellectual Property Company, LLC
InventorJames A. Thomas
Life of this patent
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Abstract
A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The fluid pump also provides fluid outflow when the rotational direction of the input drive is reversed.
Claims40
A fluid pump comprising a pump assembly generating a volume of fluid flow from a reservoir, said pump assembly being powered by an input drive;
- and a control valve disposed between said pump assembly and an outflow, wherein said control valve alters a portion of said volume directed to said outflow when a speed of said input drive is changed.
A fluid pump comprising a pump assembly rotatably attached to an input shaft, said pump assembly generating a volume of fluid flow from a reservoir proportional to a speed of said input shaft;
- and a governor altering the position of a control valve proportionately to said speed of said input shaft, said control valve directing a portion of said volume of fluid flow to an outflow and another portion to a diversion;
- wherein said outflow portion decreases as said speed of said input shaft increases.
Dependencies are inferred from the claim text.