Patents by Inventor Yoshihumi Kuzuya

Yoshihumi Kuzuya 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).

  • EGR gas assist injection system for internal combustion engine
    Patent number: 5746189
    Abstract: An EGR (Exhaust Gas Recirculation) gas assist injection system for an internal combustion engine is provided which includes fuel injectors, sub-exhaust valves, and EGR valves. Each of the sub-exhaust valves is mechanically opened in synchronization with the start of an exhaust process of a corresponding one of engine cylinders. Each of the EGR valves is electrically opened to supply part of exhaust gas discharged through one of the subexhaust valves from one of the engine cylinders which is in the exhaust process to mix it with fuel sprayed into another of the engine cylinders which is in an intake process for promoting atomization of the fuel spray and achieving EGR.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: May 5, 1998
    Assignee: Nippon Soken, Inc.
    Inventors: Yoshihumi Kuzuya, Kimitaka Saito, Hitoshi Shibata