Patents by Inventor Tatsuya Naki

Tatsuya Naki 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).

  • Patent number: 4842490
    Abstract: A variable displacement vane compressor for an air conditioning system used in an automobile has a cylinder assembly having a bore in which a rotor (7) is received to form at least one crescent chamber (R1, R2) between the rotor (7) and the bore. The cooling capacity is adjusted in accordance with a cooling load of the air conditioning system by displacement of an annular plate member (21) for controlling the amount of refrigerant introduced into a crescent chamber (R1, R2). The annular plate member (7) is driven by a driving units (25, 25a, 26, 27, 28, S1, S2) in which a dynamic pressure balance between a first compartment (S1) to which a refrigerant gas under a discharging pressure is introduced, and of a second compartment (S2) to which an oil under a discharging pressure is introduced.
    Type: Grant
    Filed: April 4, 1988
    Date of Patent: June 27, 1989
    Assignee: Kabushiki Kaisha Toyoda Jidoshokki Seisakusho
    Inventors: Yasushi Watanabe, Shinichi Suzuki, Masahiro Kawaguchi, Tatsuya Naki