Patents by Inventor Rajshekhar D. Oza

Rajshekhar D. Oza 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).

  • Patent number: 4797263
    Abstract: A catalytic converter has a monolith with a plurality of catalyst coated passages to which internal combustion engine exhaust gases are directed with a nonuniform velocity profile that is highest at the center. A flow distributor is mounted in the converter downstream of the monolith that restricts flow centrally through the monolith while allowing relatively free flow radially outward toward the periphery to thereby alter the velocity profile at the entrance to the monolith so as to effect substantially equal distribution of the gases between all the monolith passages without extracting heat from the gases prior to entering same and without adding substantial back pressure.
    Type: Grant
    Filed: August 6, 1987
    Date of Patent: January 10, 1989
    Assignee: General Motors Corporation
    Inventor: Rajshekhar D. Oza
  • Patent number: 4458655
    Abstract: A fuel injection nozzle with heated valve for flash boiling of fuel during injection includes a nozzle body of electrical conductive material with a spring biased valve of electrical conductive material operatively positioned in an axial extending fuel passage within the nozzle body so as to control the flow of fuel out through a discharge outlet at one end of the nozzle body. An electrical insulator sleeve encircles and is fixed to the valve intermediate the ends thereof so as to support a coiled electrical heater wire that is connected at one end to the valve adjacent to its tip end and which is connected at its opposite end to an electrical conductor sleeve that is fixed to the insulator sleeve.
    Type: Grant
    Filed: June 27, 1983
    Date of Patent: July 10, 1984
    Assignee: General Motors Corporation
    Inventor: Rajshekhar D. Oza