Patents by Inventor Naohiro TSUCHIYA

Naohiro TSUCHIYA 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).

  • Rolling cylinder displacement compressor
    Patent number: 10801483
    Abstract: A rolling cylinder displacement compressor including a minimum pressure bypass port as an opening of a minimum pressure bypass valve flow path, which is connected to a compression chamber formed in the compression portion in a lowest pressure state, of the bypass valve flow path is arranged such that a compression chamber faces an opening of the discharge flow path or the minimum pressure bypass port. The minimum pressure bypass port may be configured such that a minimum pressure port center as the center of the minimum pressure bypass port is arranged in a rotation advanced-side region with respect to an advanced radius line as a line connecting a cylinder advanced corner point of the compression chamber at the start of a compression stroke and the rotation center of the rolling cylinder.
    Type: Grant
    Filed: October 23, 2019
    Date of Patent: October 13, 2020
    Assignee: HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC.
    Inventors: Isamu Tsubono, Hirokatsu Kosokabe, Yasuhiro Kishi, Naohiro Tsuchiya, Kenji Takesawa, Keigo Watanabe
  • ROLLING CYLINDER DISPLACEMENT COMPRESSOR
    Publication number: 20200056600
    Abstract: A rolling cylinder displacement compressor including a minimum pressure bypass port as an opening of a minimum pressure bypass valve flow path, which is connected to a compression chamber formed in the compression portion in a lowest pressure state, of the bypass valve flow path is arranged such that a compression chamber faces an opening of the discharge flow path or the minimum pressure bypass port. The minimum pressure bypass port may be configured such that a minimum pressure port center as the center of the minimum pressure bypass port is arranged in a rotation advanced-side region with respect to an advanced radius line as a line connecting a cylinder advanced corner point of the compression chamber at the start of a compression stroke and the rotation center of the rolling cylinder.
    Type: Application
    Filed: October 23, 2019
    Publication date: February 20, 2020
    Inventors: Isamu TSUBONO, Hirokatsu KOSOKABE, Yasuhiro KISHI, Naohiro TSUCHIYA, Kenji TAKESAWA, Keigo WATANABE