Patents by Inventor Zhengbal Liu

Zhengbal Liu 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).

  • Strategy for fueling a diesel engine by selective use of fueling maps to provide HCCI, HCCI+CD, and CD combustion modes
    Patent number: 7742867
    Abstract: A compression ignition engine (20) has a control system (26) for processing data, one or more combustion chambers (22), and fuel injectors (24) for injecting fuel into the chambers (22). The control system (26) controls fueling using a result of the processing of certain data, such as engine speed and engine load, to select one of three fueling modes (HCCI, HCCI+CD, CD) for operating the engine (20). When the result of the processing selects the HCCI mode, the engine (20) is fueled to cause homogeneous-charge compression-ignition (HCCI) combustion in all combustion chambers (22). When the result of the processing selects the HCCI+CD mode, the engine (20) is fueled to cause HCCI combustion in some chambers (22) and CD (conventional diesel) combustion in the remaining chambers (22). When the result of the processing selects the CD mode, the engine (22) is fueled to cause CD combustion in all chambers (22).
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: June 22, 2010
    Assignee: International Engine Intellectual Property Company, LLC
    Inventors: Zhengbal Liu, Puning Wei
  • Strategy for Fueling a Diesel Engine by Selective Use of Fueling Maps to Provide Hcci, Hcci+Cd, and Cd Combustion Modes
    Publication number: 20080027618
    Abstract: A compression ignition engine (20) has a control system (26) for processing data, one or more combustion chambers (22), and fuel injectors (24) for injecting fuel into the chambers (22). The control system (26) controls fueling using a result of the processing of certain data, such as engine speed and engine load, to select one of three fueling modes (HCCI, HCCI+CD, CD) for operating the engine (20). When the result of the processing selects the HCCI mode, the engine (20) is fueled to cause homogeneous-charge compression-ignition (HCCI) combustion in all combustion chambers (22). When the result of the processing selects the HCCI+CD mode, the engine (20) is fueled to cause HCCI combustion in some chambers (22) and CD (conventional diesel) combustion in the remaining chambers (22). When the result of the processing selects the CD mode, the engine (22) is fueled to cause CD combustion in all chambers (22).
    Type: Application
    Filed: June 22, 2005
    Publication date: January 31, 2008
    Inventors: Zhengbal Liu, Puning Wei