Patents by Inventor Guang Jun Liu

Guang Jun 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).

  • Master-slave engine bleed flow sharing control method and system
    Patent number: 6782701
    Abstract: A system and method for an engine bleed flow-sharing control system is disclosed. For a multi-engine bleed system, one (10) of the engines is selected as the master channel (15) such that the bleed air supply pressure of the control system receiving the bleed air is controlled (11, 12, 13) to achieve a desirable supply pressure range. To slave the other engine airflow control channels (25, 35, 45), the airflow rate (14) is also measured in the master channel (15) and the measured airflow rate is used as the airflow setpoint for other channels (25, 35, 45). The difference between the airflow setpoint and the airflow rate in the other channel is applied to control (21, 31, 41) the pressure or the valve/actuator opening area at the inlet of that channel (25, 35, 45).
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: August 31, 2004
    Assignee: Honeywell International Inc.
    Inventors: Guang Jun Liu, Chun Ho Lam
  • MASTER-SLAVE ENGINE BLEED FLOW SHARING CONTROL METHOD AND SYSTEM
    Publication number: 20040139751
    Abstract: A system and method for an engine bleed flow-sharing control system is disclosed. For a multi-engine bleed system, one (10) of the engines is selected as the master channel (15) such that the bleed air supply pressure of the control system receiving the bleed air is controlled (11, 12, 13) to achieve a desirable supply pressure range. To slave the other engine airflow control channels (25, 35, 45), the airflow rate (14) is also measured in the master channel (15) and the measured airflow rate is used as the airflow setpoint for other channels (25, 35, 45). The difference between the airflow setpoint and the airflow rate in the other channel is applied to control (21, 31, 41) the pressure or the valve/actuator opening area at the inlet of that channel (25, 35, 45).
    Type: Application
    Filed: January 22, 2003
    Publication date: July 22, 2004
    Inventors: Guang Jun Liu, Chun Ho Lam