Patents by Inventor Tetuya Morita

Tetuya Morita 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).

  • Structure of divided combustion chamber for diesel engine
    Patent number: 4651692
    Abstract: Herein disclosed is a structure of a divided combustion chamber or a pre-combustion chamber of a Diesel engine of the type, in which the divided combustion chamber is composed of an upper ceramic member having a substantially hemispherical head and a lower ceramic member having an injection port. Either one or both of the upper and lower ceramic members is/are formed with longitudinally and/or transversely extending cut or cuts, slit or slits, and/or groove or grooves at least a portion of the outer surface or surfaces of one or two of those ceramic members. Thus, the resistance of the ceramic members to any rupture is improved so that the divided combustion chamber made of ceramic has highly improved durability.
    Type: Grant
    Filed: December 31, 1985
    Date of Patent: March 24, 1987
    Assignee: NGK Insulators, Ltd.
    Inventors: Tetuya Morita, Akinori Wakasa, Yutaka Ogawa, Takayuki Ogasawara
  • Structure of divided combustion chamber for diesel engine
    Patent number: 4577600
    Abstract: Herein disclosed is a structure of a divided combustion chamber or a pre-combustion chamber of a Diesel engine of the type, in which the divided combustion chamber is composed of an upper ceramic member having a substantially hemispherical head and a lower ceramic member having an injection port. Either one or both of the upper and lower ceramic members is/are formed with longitudinally and/or transversely extending cut or cuts, slit or slits, and/or groove or grooves at least a portion of the outer surface or surfaces of one or two of those ceramic members. Thus, the resistance of the ceramics members to any rupture is improved so that the divided combustion chamber made of ceramic has highly improved durability.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: March 25, 1986
    Assignees: Mazda Motor Corporation, NGK Insulators, Ltd.
    Inventors: Tetuya Morita, Akinori Wakasa, Yutaka Ogawa, Takayuki Ogasawara