Patents by Inventor Yasuhiro TABE

Yasuhiro TABE 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).

  • Variable displacement type compressor with displacement control mechanism
    Patent number: 8882474
    Abstract: A variable displacement type compressor has a supply passage for supplying refrigerant gas to a pressure control chamber, a release passage for releasing the refrigerant gas from the pressure control chamber, a first control valve for controlling the amount of the refrigerant gas flowing through the supply passage, a check valve provided between the first control valve and the pressure control chamber and preventing the refrigerant gas from flowing from the pressure control chamber to the first control valve by closing the supply passage and a second control valve for adjusting a cross-sectional area of the release passage from minimum to maximum. The second control valve has a back pressure chamber communicating with the supply passage, a valve chamber forming a part of the release passage and communicating with a suction-pressure region, a valve hole forming a part of the release passage and communicating with the valve chamber and a spool having a valve portion located in the valve chamber.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: November 11, 2014
    Assignee: Kabushiki Kaisha Toyota Jidoshokki
    Inventors: Masaki Ota, Hiroshi Kubo, Ryo Matsubara, Yasuhiro Tabe, Hideharu Yamashita, Yuki Morikage
  • VARIABLE DISPLACEMENT TYPE COMPRESSOR WITH DISPLACEMENT CONTROL MECHANISM
    Publication number: 20100104454
    Abstract: A variable displacement type compressor has a supply passage for supplying refrigerant gas to a pressure control chamber, a release passage for releasing the refrigerant gas from the pressure control chamber, a first control valve for controlling the amount of the refrigerant gas flowing through the supply passage, a check valve provided between the first control valve and the pressure control chamber and preventing the refrigerant gas from flowing from the pressure control chamber to the first control valve by closing the supply passage and a second control valve for adjusting a cross-sectional area of the release passage from minimum to maximum. The second control valve has a back pressure chamber communicating with the supply passage, a valve chamber forming a part of the release passage and communicating with a suction-pressure region, a valve hole forming a part of the release passage and communicating with the valve chamber and a spool having a valve portion located in the valve chamber.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 29, 2010
    Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI
    Inventors: Masaki OTA, Hiroshi KUBO, Ryo MATSUBARA, Yasuhiro TABE, Hideharu YAMASHITA, Yuki MORIKAGE