Patents Assigned to Rotocold Limited
  • Gas compressors
    Patent number: 4936112
    Abstract: A rotary vane gas compressor e.g. for use in refrigeration is driven by an electric motor which is cooled by a refrigerant liquid passed through a heat exchanger which is attached to the external surface of the stator of the motor. The refrigerant is then passed back into the compression chamber of the gas compressor via a port intermediate between the inlet and outlet ports.
    Type: Grant
    Filed: August 3, 1988
    Date of Patent: June 26, 1990
    Assignee: Rotocold Limited
    Inventor: Alan S. Miller