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US 10,443,383 B2Granted
Rotational displacement apparatus
AssigneeFetu Limited
InventorJonathan Paul Fenton
Life of this patent
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Abstract
An apparatus including a first piston member rotatable about a first rotational axis and a rotor with a first chamber and pivotable about a second rotational axis. The first piston member extends across the first chamber. The rotor and first piston member are rotatable around the first rotational axis, and the rotor is pivotable about the second rotational axis to permit a relative pivoting motion between the rotor and the first piston member linked to the rotor rotating about the first rotational axis.
Claims20
A rotary fluid apparatus comprising:
- a shaft which defines and is rotatable about a first rotational axis;
- an axle defining a second rotational axis, the shaft extending through the axle;
- a first piston member provided on the shaft, the first piston member extending from the axle towards a distal end of the shaft;
- and
- the shaft, the axle and the first piston member are fixed relative to one another;
- a rotor carried on the axle;
- the rotor comprising a first chamber with the first piston member extending across the first chamber;
- whereby:
- the rotor and axle are rotatable with the shaft around the first rotational axis;
- and
- the rotor is pivotable about the axle about the second rotational axis to permit relative pivoting motion between the rotor and the first piston member as the rotor rotates about the first rotational axis.
8 more elements
A method of operation of a rotary fluid apparatus that comprises
- a shaft which defines and is rotatable about a first rotational axis;
- an axle defining a second rotational axis with the shaft extending through the axle;
- a first piston member provided on the shaft;
- and the shaft, the axle and the first piston member are fixed relative to one another;
- the first piston member being rotatable about a first rotational axis;
- a rotor comprising a first chamber and pivotable about a second rotational axis, the first piston member extending across the first chamber;
- the method comprising:
- rotating the rotor and first piston member around the first rotational axis;
- and
- pivoting the rotor about the second rotational axis such that there is a relative pivoting motion between the rotor and the first piston member which varies the volume of the first chamber, with the change in chamber volume being linked to rotation of the rotor about the first rotational axis.
7 more elements
Dependencies are inferred from the claim text.