Patents by Inventor Michiyoshi Miyazaki

Michiyoshi Miyazaki 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).

  • Control valve for a variable displacement compressor
    Patent number: 9651037
    Abstract: A control valve according to an embodiment includes a body having a valve hole and a guiding passage formed coaxially with the valve hole, an actuating rod, slidably supported along the guiding passage, which is provided with a valve element, a solenoid for applying the solenoidal force in an opening or closing direction of a valve section to the valve element via the actuating rod, and a seal section, provided between the actuating rod and the guiding passage, which houses a sealing member for restricting the leakage of refrigerant from a high pressure side to a low pressure side. The actuating rod and the guiding passage are configured such that the clearance, between the actuating rod and the guiding passage, which is at a higher-pressure side of the seal section is larger than the clearance which is at a lower-pressure side of the seal section.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: May 16, 2017
    Assignee: TGK Co., Ltd.
    Inventors: Hidekazu Sakakibara, Takashi Kobayashi, Michiyoshi Miyazaki, Kotaka Tamotsu, Satoshi Shimazaki
  • CONTROL VALVE FOR A VARIABLE DISPLACEMENT COMPRESSOR
    Publication number: 20130276920
    Abstract: A control valve according to an embodiment includes a body having a valve hole and a guiding passage formed coaxially with the valve hole, an actuating rod, slidably supported along the guiding passage, which is provided with a valve element, a solenoid for applying the solenoidal force in an opening or closing direction of a valve section to the valve element via the actuating rod, and a seal section, provided between the actuating rod and the guiding passage, which houses a sealing member for restricting the leakage of refrigerant from a high pressure side to a low pressure side. The actuating rod and the guiding passage are configured such that the clearance, between the actuating rod and the guiding passage, which is at a higher-pressure side of the seal section is larger than the clearance which is at a lower-pressure side of the seal section.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 24, 2013
    Applicant: TGK CO., LTD
    Inventors: Hidekazu Sakakibara, Takashi Kobayashi, Michiyoshi Miyazaki, Kotaka Tamotsu, Satoshi Shimazaki