Patents by Inventor Yohinao Ugomori

Yohinao Ugomori 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).

  • Start-up control of in-cylinder fuel injection internal combustion engine
    Publication number: 20050039726
    Abstract: A four-stroke cycle in-cylinder fuel injection internal combustion engine (1) comprises a fuel injector (8) which injects fuel directly into a combustion chamber (7), performs stratified charge combustion by means of compression stroke fuel injection, and performs homogeneous combustion by means of intake stroke fuel injection. Upon start-up of the engine (1), intake stroke fuel injection is performed at the first combustion opportunity, and compression stroke fuel injection is switched to from the second combustion opportunity onward. In so doing, switching of the combustion system is performed early and independently of the engine rotation speed.
    Type: Application
    Filed: July 29, 2004
    Publication date: February 24, 2005
    Inventors: Hitoshi Ishii, Masahiko Yuya, Tsutomu Kikuchi, Yuichi Iriya, Mitsuhiro Akagi, Masahiro Fukuzumi, Katsuaki Uchiyama, Takao Maitani, Masayuki Tomita, Yohinao Ugomori