Patents by Inventor Wei Liu Liu

Wei Liu 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).

  • Process for reducing abnormal combustion within an internal combustion engine
    Patent number: 10273886
    Abstract: The present invention provides a process for reducing abnormal combustion within a combustion chamber of the engine. The process can include simulation of the piston-driven internal combustion engine with oil droplets from the crankcase entering into the combustion chamber. In addition, the oil drops entering into the combustion chamber can be simulated as hot spots, as can simulation of fuel combustion within the combustion chamber. A probability of pre-ignition for at least a portion of the simulated hot spots as a function of the simulated fuel combustion and the simulated hot spots within the combustion chamber can be calculated and based on the calculation a combustion chamber parameter can be altered such that pre-ignition within the combustion chamber is reduced.
    Type: Grant
    Filed: January 18, 2012
    Date of Patent: April 30, 2019
    Assignee: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Tenghua Tom Shieh, Oana Nitulescu, Wei Liu Liu, Kiyotaka Yamashita
  • PROCESS FOR REDUCING ABNORMAL COMBUSTION WITHIN AN INTERNAL COMBUSTION ENGINE
    Publication number: 20130184974
    Abstract: The present invention provides a process for reducing abnormal combustion within a combustion chamber of the engine. The process can include simulation of the piston-driven internal combustion engine with oil droplets from the crankcase entering into the combustion chamber. In addition, the oil drops entering into the combustion chamber can be simulated as hot spots, as can simulation of fuel combustion within the combustion chamber. A probability of pre-ignition for at least a portion of the simulated hot spots as a function of the simulated fuel combustion and the simulated hot spots within the combustion chamber can be calculated and based on the calculation a combustion chamber parameter can be altered such that pre-ignition within the combustion chamber is reduced.
    Type: Application
    Filed: January 18, 2012
    Publication date: July 18, 2013
    Applicant: Toyota Motor Engineering & Manufacturing North America, Inc.
    Inventors: Tenghua Tom Shieh, Oana Nitulescu, Wei Liu Liu, Kiyotaka Yamashita