Patents by Inventor Sumio Oshika

Sumio Oshika 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).

  • Three position diesel engine intake air throttling system
    Patent number: 4452203
    Abstract: An intake air throttling system for a diesel engine comprising an air intake passage. The system includes a throttling valve mounted in the air intake passage so as to selectively throttle air flow through it. This throttling valve can be positioned to at least a first position in which it substantially fully closes the air intake passage, a second position in which it partly throttles the air intake passage to a substantial extent but does not fully close it, and a third position in which it does not throttle the air intake passage to any substantial extent. The throttling valve is controlled by a control system, which positions it to the first position when the engine is being stopped, which positions it to the second position when the engine is being idled, and which positions it to the third position when the engine is being operated in non idling load bearing operational condition.
    Type: Grant
    Filed: February 16, 1982
    Date of Patent: June 5, 1984
    Assignees: Toyota Jidosha Kabushiki Kaisha, Nippon Soken, Inc.
    Inventors: Sumio Oshika, Takahiko Kinoshita, Nobuhiko Kakeno, Nobuhiro Miura, Kiyoshi Kato, Satosi Kuwakado, Yasuo Kondo