Patent ID: 11873816
Assignee: REGI U.S., INC.
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 15:
16. A device, comprising:
a shaft configured to rotate about a rotational axis;
a rotor coupled to the shaft, the rotor defining a plurality of slots;
a plurality of vanes, individual vanes of the plurality of vanes residing within individual slots of the plurality of slots, the plurality of vanes being configured to translate in a direction substantially parallel to the rotational axis;
a stator;
a first seal coupled to the rotor;
a second seal coupled to the stator;
a third seal coupled to the rotor and disposed at least partially around the first seal, the third seal including one or more first grooves that extend in the direction substantially parallel to the rotational axis; and
a fourth seal coupled to the stator and disposed at least partially around the second seal, the fourth seal including one or more second grooves that extend in the direction substantially parallel to the rotational axis, the one or more second grooves being complimentary with the one or more first grooves to form a labyrinth seal for chambers of the device.