Patents by Inventor Hing C. Chan

Hing C. Chan 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 regulating fuel flow in a gas turbine engine
    Patent number: 5329759
    Abstract: Fuel flow to the combustor of a gas turbine engine is regulated by controlling the amount of fuel delivered to the primary and secondary fuel orifices of a hybrid fuel nozzle. A one-way valve extending between primary and secondary fuel manifolds is controlled by an electronic sensor that acts upon signals received from sensors at station 4.5 of the engine, and by sensors that measure engine speed. By opening and closing the valve based upon T.sub.4.5 and N.sub.2 speed, optimum engine operating conditions are achieved.
    Type: Grant
    Filed: June 30, 1993
    Date of Patent: July 19, 1994
    Assignee: Pratt & Whitney Canada, Inc.
    Inventor: Hing C. Chan