Reciprocating axial pump
AssigneeSchaeffler Technologies AG & Co. KG
InventorJeffrey HEMPHILL
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Abstract
A transmission pump comprising a pair of pistons located in corresponding chambers of the pump, the pistons configured to move fluid located in the chamber. The transmission pump also includes one or more return springs located in at least one of the chambers and configured to move the pair of pistons. The transmission pump also includes an electrical coil located adjacent the pair of pistons, wherein the coil is configured to produce a magnetic flux to move the pistons and springs.
Claims20
A transmission pump, comprising:
- a pair of pistons located in corresponding chambers of the pump, the pistons configured to move fluid located in the chamber;
- one or more return springs located in at least one of the chambers and configured to move the pair of pistons;
- and
- an electrical coil located adjacent the pair of pistons, wherein the electrical coil is configured to produce a magnetic flux to move the pistons and springs.
A transmission pump, comprising:
- one or more pistons located in one or more corresponding chambers of the pump, the one or more pistons configured to move fluid located in the corresponding chamber and reciprocate along a stator;
- one or more springs located in the chamber and configured to move the one or more pistons;
- and
- an electrical coil located adjacent the one or more of pistons, wherein the coil is configured to produce a magnetic flux in response to a signal from a semiconductor to move the one or more pistons and springs.
A method of moving fluid using a pump in a transmission of a vehicle, comprising:
- in response to power from a semiconductor, powering an electrical coil located adjacent a pair of pistons each in corresponding chambers;
- producing a magnetic flux from the electrical coil;
- in response to the magnetic flux, moving a pair of pistons located in corresponding chambers of the pump;
- and
- reciprocating the pair of pistons utilizing springs.
Dependencies are inferred from the claim text.