Patents by Inventor Yasuaki Uekawa

Yasuaki Uekawa 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).

  • Cooling system for an internal combustion engine
    Patent number: 5111776
    Abstract: A sealed type engine cooling system having a reservoir tank connected to the engine recirculating water passageway by inlet pipes connected to the upper outlet of an engine cooling water passageway and to the upper inlet of a radiator. The bottom portion of the reservoir tank is connected to the bottom of the engine cooling water passageway, for supplementing the engine cooling water, and is provided with a cap with a relief valve, to thereby discharge vapor created in the cooling water passageway under a hot soak condition. The relationship between the inner diameter of the pipes is such that the effective cross sectional area of the inlet pipe means is 1.
    Type: Grant
    Filed: September 25, 1990
    Date of Patent: May 12, 1992
    Assignees: Nippon Soken, Inc., Toyota Jidosha Kabushiki Kaisha
    Inventors: Ryuichi Matsushiro, Toru Kosuda, Shigeo Sasao, Taro Ikeya, Yoshiharu Chino, Yasuaki Uekawa