Patents by Inventor Tuguyasu Sakai

Tuguyasu Sakai 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).

  • Glow plug heating control apparatus for a diesel engine
    Patent number: 4639871
    Abstract: A control apparatus for diesel engines controls the energization of glow plugs each of which is disposed in a cylinder of a diesel engine and heated by an energizing current flowing therethrough. When fuel supply to the engine is resumed after the engine temperature has fallen due to the interruption of fuel supply during a decelerating operation of the engine and further when fuel supply is enriched during an accelerating operation of the engine while it is cold, the control apparatus controls the energization of the glow plugs, thereby promoting the combustion of the engine and improving the combustion efficiency of the engine.
    Type: Grant
    Filed: February 2, 1984
    Date of Patent: January 27, 1987
    Assignee: Nippondenso Co., Ltd.
    Inventors: Tuguyasu Sakai, Hideaki Namba, Masahiro Ohba