Patents by Inventor Muheng Zhang

Muheng Zhang 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).

  • Reductant dosing system having staggered injectors
    Patent number: 9664082
    Abstract: A mixer is disclosed for use in a reductant dosing system. The mixer may have an impingement floor located within an intended fluid injection path and generally parallel with a flow direction through the mixer. The mixer may also have a first side wall connected along a lengthwise edge of the impingement floor, a second side wall connected along an opposing lengthwise edge of the impingement floor, and a plurality of shelves extending between the first and second side walls. The plurality of shelves each may include a plurality of vanes that promote mixing of an injected fluid. One or more of the plurality of shelves may extend different distances upstream opposite the flow direction.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: May 30, 2017
    Assignee: Caterpillar Inc.
    Inventors: Yong Yi, Jay Venkataraghavan, Arvind Jujare, Steven Ray Lewis, Muheng Zhang
  • REDUCTANT DOSING SYSTEM HAVING STAGGERED INJECTORS
    Publication number: 20150345356
    Abstract: A mixer is disclosed for use in a reductant dosing system. The mixer may have an impingement floor located within an intended fluid injection path and generally parallel with a flow direction through the mixer. The mixer may also have a first side wall connected along a lengthwise edge of the impingement floor, a second side wall connected along an opposing lengthwise edge of the impingement floor, and a plurality of shelves extending between the first and second side walls. The plurality of shelves each may include a plurality of vanes that promote mixing of an injected fluid. One or more of the plurality of shelves may extend different distances upstream opposite the flow direction.
    Type: Application
    Filed: June 2, 2014
    Publication date: December 3, 2015
    Applicant: Caterpillar Inc.
    Inventors: Yong YI, Jay VENKATARAGHAVAN, Arvind JUJARE, Steven Ray LEWIS, Muheng ZHANG
  • PREMIXER CONDUIT FOR EXHAUST AFTERTREATMENT SYSTEM
    Publication number: 20140366514
    Abstract: An exhaust aftertreatment system is disclosed. The exhaust aftertreatment system includes a premixer conduit that defines an exhaust flow path, a baffle disposed in the exhaust flow path, and a reductant injector in fluid communication with the exhaust flow path. The baffle is positioned in the premixer conduit, which includes a premixer inlet, a transition section, and a premixer outlet. The transition section is disposed between the premixer inlet and the premixer outlet. The premixer inlet is in fluid communication with the engine. The reductant injector is positioned downstream of the baffle and upstream of the premixer outlet.
    Type: Application
    Filed: September 1, 2014
    Publication date: December 18, 2014
    Applicant: Caterpillar Inc.
    Inventors: Steven R. Lewis, Yong Yi, Arvind Jujare, Muheng Zhang