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Rotational displacement apparatus

  • US 10,443,383 B2
  • Filed: 08/05/2016
  • Issued: 10/15/2019
  • Est. Priority Date: 11/25/2015
  • Status: Active Grant
First Claim
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1. 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.

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