Patents by Inventor Yorito KOHARA

Yorito KOHARA 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).

  • Ejector, manufacturing method thereof, and ejector-type refrigeration cycle
    Patent number: 10316865
    Abstract: An ejector has a nozzle, a body, a passage defining member and a drive portion. The body has a refrigerant suction port and a pressure increasing portion. A nozzle passage is defined between an inner surface of the nozzle and an outer surface of the passage defining member and has a minimum sectional area portion, a tapered portion, and an expansion portion. The minimum sectional area portion has a smallest passage sectional area. The tapered portion is located upstream of the minimum sectional area portion in a refrigerant flow direction and has a passage sectional area decreasing toward the minimum sectional area portion gradually. The expansion portion is located downstream of the minimum sectional area portion in the refrigerant flow direction and has a passage sectional area increasing gradually. The passage defining member has a groove that is recessed to increase the passage sectional area of the nozzle passage.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: June 11, 2019
    Assignee: DENSO CORPORATION
    Inventors: Yoshiyuki Yokoyama, Haruyuki Nishijima, Etsuhisa Yamada, Ryota Nakashima, Yoshiaki Takano, Kazunori Mizutori, Yorito Kohara, Hiroshi Shintani
  • EJECTOR, MANUFACTURING METHOD THEREOF, AND EJECTOR-TYPE REFRIGERATION CYCLE
    Publication number: 20180045225
    Abstract: An ejector has a nozzle, a body, a passage defining member and a drive portion. The body has a refrigerant suction port and a pressure increasing portion. A nozzle passage is defined between an inner surface of the nozzle and an outer surface of the passage defining member and has a minimum sectional area portion, a tapered portion, and an expansion portion. The minimum sectional area portion has a smallest passage sectional area. The tapered portion is located upstream of the minimum sectional area portion in a refrigerant flow direction and has a passage sectional area decreasing toward the minimum sectional area portion gradually. The expansion portion is located downstream of the minimum sectional area portion in the refrigerant flow direction and has a passage sectional area increasing gradually. The passage defining member has a groove that is recessed to increase the passage sectional area of the nozzle passage.
    Type: Application
    Filed: March 2, 2016
    Publication date: February 15, 2018
    Inventors: Yoshiyuki YOKOYAMA, Haruyuki NISHIJIMA, Etsuhisa YAMADA, Ryota NAKASHIMA, Yoshiaki TAKANO, Kazunori MIZUTORI, Yorito KOHARA, Hiroshi SHINTANI