Patents by Inventor Hiromiki Ohno

Hiromiki Ohno has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Gas compressor with a pressure bypass valve being formed in a compressed gas passage or an oil separation space
    Patent number: 8092200
    Abstract: In a gas compressor, a cyclone block is configured to include a substantially cylindrical space into which a compressed gas is introduced to separate refrigeration oil from the gas. A pressure bypass is formed in the substantially cylindrical space defined by an outer cylindrical unit and an inner cylindrical unit to communicate with a discharge chamber having lower pressure than that of the substantially cylindrical space. The pressure bypass includes a pressure valve to open and close the pressure bypass in accordance with the internal pressure of the substantially cylindrical space having the pressure bypass. During a high speed operation of a compressor unit, the coolant gas including unseparated refrigeration oil is discharged from the pressure bypass.
    Type: Grant
    Filed: March 24, 2009
    Date of Patent: January 10, 2012
    Assignee: Calsonic Kansei Corporation
    Inventors: Hiroshi IiJima, Hiromiki Ohno
  • Gas compressor
    Publication number: 20090246061
    Abstract: In a gas compressor, a cyclone block is configured to include a substantially cylindrical space into which a compressed gas is introduced to separate refrigeration oil from the gas. A pressure bypass is formed in the substantially cylindrical space defined by an outer cylindrical unit and an inner cylindrical unit to communicate with a discharge chamber having lower pressure than that of the substantially cylindrical space. The pressure bypass includes a pressure valve to open and close the pressure bypass in accordance with the internal pressure of the substantially cylindrical space having the pressure bypass. During a high speed operation of a compressor unit, the coolant gas including unseparated refrigeration oil is discharged from the pressure bypass.
    Type: Application
    Filed: March 24, 2009
    Publication date: October 1, 2009
    Inventors: Hiroshi IiJIMA, Hiromiki OHNO