Patents by Inventor Sai Keat Paul Wang

Sai Keat Paul Wang 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).

  • Method for controlling ignition in internal combustion engine and pre-chamber assembly thereof
    Patent number: 9920714
    Abstract: An internal combustion engine is provided. The internal combustion engine includes an engine block having at least one cylinder. The internal combustion engine includes a cylinder head engaged with the engine block. The internal combustion engine includes a pre-chamber assembly associated with the cylinder head. The pre-chamber assembly includes a pre-chamber in fluid communication with a main combustion chamber. The pre-chamber assembly includes a fuel supply unit in fluid communication with the pre-chamber to selectively supply fuel to the pre-chamber. The pre-chamber assembly includes an auxiliary unit configured to produce oxygen and hydrogen. The auxiliary unit is in fluid communication with the pre-chamber to supply oxygen to the pre-chamber and in fluid communication with the main combustion chamber to supply hydrogen to the main combustion chamber. The pre-chamber assembly includes an ignition unit associated with the pre-chamber to selectively ignite a mixture of fuel and oxygen in the pre-chamber.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: March 20, 2018
    Assignee: Caterpillar Inc.
    Inventors: David M. Ginter, Sai Keat Paul Wang, Charlie C. Kim, Arnold M. Kim, Daniel G. Van Alstine
  • METHOD FOR CONTROLLING IGNITION IN INTERNAL COMBUSTION ENGINE AND PRE-CHAMBER ASSEMBLY THEREOF
    Publication number: 20180003132
    Abstract: An internal combustion engine is provided. The internal combustion engine includes an engine block having at least one cylinder. The internal combustion engine includes a cylinder head engaged with the engine block. The internal combustion engine includes a pre-chamber assembly associated with the cylinder head. The pre-chamber assembly includes a pre-chamber in fluid communication with a main combustion chamber. The pre-chamber assembly includes a fuel supply unit in fluid communication with the pre-chamber to selectively supply fuel to the pre-chamber. The pre-chamber assembly includes an auxiliary unit configured to produce oxygen and hydrogen. The auxiliary unit is in fluid communication with the pre-chamber to supply oxygen to the pre-chamber and in fluid communication with the main combustion chamber to supply hydrogen to the main combustion chamber. The pre-chamber assembly includes an ignition unit associated with the pre-chamber to selectively ignite a mixture of fuel and oxygen in the pre-chamber.
    Type: Application
    Filed: June 29, 2016
    Publication date: January 4, 2018
    Applicant: Caterpillar Inc.
    Inventors: David M. Ginter, Sai Keat Paul Wang, Charlie C. Kim, Arnold M. Kim, Daniel G. Van Alstine