Patents by Inventor Kingo Moriyama

Kingo Moriyama 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).

  • Displacement type fluid machine
    Patent number: 6312237
    Abstract: In a displacement type fluid machine wherein a space is formed by the inner wall surface of a cylinder and the outer wall surface of a displacer when the center of the cylinder is located on the center of the displacer, and a plurality of working chambers is formed when the positional relationship between the displacer and cylinder is for a gyration, the wear is reduced between the cylinder and displacer. Sliding portions between the displacer 5 and a cylinder 4 are fed with a lubricating oil 12 by forming an oil-feeding groove 5c in the surface of the displacer 5 so as to extend from the central portion of the displacer 5 to the vicinity of a suction port 7a, and feeding the lubricating oil 12 from the central portion of the displacer 5, so that the wear can be reduced.
    Type: Grant
    Filed: March 6, 2001
    Date of Patent: November 6, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Kouno, Hirokatsu Kohsokabe, Masahiro Takebayashi, Shunichi Mitsuya, Shigetaro Tagawa, Yasuhiro Ohshima, Kingo Moriyama
  • Displacement type fluid machine
    Publication number: 20010008610
    Abstract: In a displacement type fluid machine wherein a space is formed by the inner wall surface of a cylinder and the outer wall surface of a displacer when the center of the cylinder is located on the center of the displacer, and a plurality of working chambers is formed when the positional relationship between the displacer and cylinder is for a gyration, the wear is reduced between the cylinder and displacer. Sliding portions between the displacer 5 and a cylinder 4 are fed with a lubricating oil 12 by forming an oil-feeding groove 5c in the surface of the displacer 5 so as to extend from the central portion of the displacer 5 to the vicinity of a suction port 7a, and feeding the lubricating oil 12 from the central portion of the displacer 5, so that the wear can be reduced.
    Type: Application
    Filed: March 6, 2001
    Publication date: July 19, 2001
    Inventors: Takeshi Kouno, Hirokatsu Kohsokabe, Masahiro Takebayashi, Shunichi Mitsuya, Shigetaro Tagawa, Yasuhiro Ohshima, Kingo Moriyama
  • Displacement type fluid machine
    Patent number: 6220841
    Abstract: In a displacement type fluid machine wherein a space is formed by the inner wall surface of a cylinder and the outer wall surface of a displacer when the center of the cylinder is located on the center of the displacer, and a plurality of working chambers is formed when the positional relationship between the displacer and cylinder is for a gyration, the wear is reduced between the cylinder and displacer. Sliding portions between the displacer 5 and a cylinder 4 are fed with a lubricating oil 12 by forming an oil-feeding groove 5c in the surface of the displacer 5 so as to extend from the central portion of the displacer 5 to the vicinity of a suction port 7a, and feeding the lubricating oil 12 from the central portion of the displacer 5, so that the wear can be reduced.
    Type: Grant
    Filed: March 16, 1999
    Date of Patent: April 24, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Takeshi Kouno, Hirokatsu Kohsokabe, Masahiro Takebayashi, Shunichi Mitsuya, Shigetaro Tagawa, Yasuhiro Ohshima, Kingo Moriyama