Patents by Inventor Guangping Pan

Guangping Pan 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).

  • Exhaust gas recirculation measurement device
    Patent number: 6810725
    Abstract: An EGR measurement device for recirculating a portion of exhaust gas of an internal combustion engine that is adapted to allow accurate measurement of exhaust gas flow when the exhaust gas flows in a reverse direction that is opposite to the forward direction toward the intake of the engine. In one embodiment, an extension portion is used which extends over a second tap to allow measurement of pressure in the reverse flow direction so that flow rate can be calculated. In another embodiment, one or more pitot tubes are provided that allows accurate measurement of exhaust gas flows when the exhaust gas flows in a reverse direction.
    Type: Grant
    Filed: February 28, 2003
    Date of Patent: November 2, 2004
    Assignee: Cummins Inc.
    Inventors: Gregory H. Henderson, Michael J. Marthaler, Jeffrey J. Braun, Vinoo Thomas, Guangping Pan, Thomas L. McKinley
  • EXHAUST GAS RECIRCULATION MEASUREMENT DEVICE
    Publication number: 20040168508
    Abstract: An EGR measurement device for recirculating a portion of exhaust gas of an internal combustion engine that is adapted to allow accurate measurement of exhaust gas flow when the exhaust gas flows in a reverse direction that is opposite to the forward direction toward the intake of the engine. In one embodiment, an extension portion is used which extends over a second tap to allow measurement of pressure in the reverse flow direction so that flow rate can be calculated. In another embodiment, one or more pitot tubes are provided that allows accurate measurement of exhaust gas flow when the exhaust gas flows in a reverse direction.
    Type: Application
    Filed: February 28, 2003
    Publication date: September 2, 2004
    Applicant: Cummins Inc.
    Inventors: Gregory H. Henderson, Michael J. Marthaler, Jeffrey J. Braun, Vinoo Thomas, Guangping Pan, Thomas L. McKinley
  • Internal combustion engine with piston cooling system and piston therefor
    Patent number: 6701875
    Abstract: A piston cooling system and associated piston are provided which effectively cools and lubricates the upper crown portion of a piston and the connecting rod/piston pin area using a single cooling nozzle. The piston cooling system includes a piston having a cooling gallery, a cooling nozzle positioned to direct cooling oil through a flow path to the entrance of the cooling gallery, and a deflecting surface positioned in the flow path to deflect a portion of the cooling oil into a deflected flow path toward the connecting rod and piston pin area. The deflecting surface may be formed on a baffle plate positioned as the bottom wall of the cooling gallery or may be integrally formed on the piston body.
    Type: Grant
    Filed: May 31, 2002
    Date of Patent: March 9, 2004
    Assignee: Cummins Inc.
    Inventors: Weibo Weng, Gordon L. Starr, Guangping Pan
  • Internal combustion engine with piston cooling system and piston therefor
    Publication number: 20030221639
    Abstract: A piston cooling system and associated piston are provided which effectively cools and lubricates the upper crown portion of a piston and the connecting rod/piston pin area using a single cooling nozzle. The piston cooling system includes a piston having a cooling gallery, a cooling nozzle positioned to direct cooling oil through a flow path to the entrance of the cooling gallery, and a deflecting surface positioned in the flow path to deflect a portion of the cooling oil into a deflected flow path toward the connecting rod and piston pin area. The deflecting surface may be formed on a baffle plate positioned as the bottom wall of the cooling gallery or may be integrally formed on the piston body.
    Type: Application
    Filed: May 31, 2002
    Publication date: December 4, 2003
    Applicant: Cummins Inc.
    Inventors: Weibo Weng, Gordon L. Starr, Guangping Pan