Patents by Inventor Rafik ZOUARI

Rafik ZOUARI 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 monitoring an aircraft engine in operation during a flight
    Patent number: 10288518
    Abstract: A method for monitoring an aircraft engine during flight, which includes the steps of: for at least one characteristic frequency of the operation of the engine, measuring at least one synchronous vibration level value; for at least one module of the engine, estimating an out-of-balance value of the module in accordance with the one or more vibration level values measured and at least one sensitivity coefficient; estimating a balancing margin of the module in accordance with the out-of-balance value of said module and a maximum threshold; (d) estimating a remaining number of flights of the aircraft prior to balancing and/or a quality indicator of a preceding balancing operation in accordance with the one or more estimated balancing margins and data representing past balancing operations of the engine.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: May 14, 2019
    Assignee: Safran Aircraft Engines
    Inventors: Josselin Coupard, Ronan Louis Castrec, Rafik Zouari
  • METHOD FOR MONITORING AN AIRCRAFT ENGINE IN OPERATION DURING A FLIGHT
    Publication number: 20180306666
    Abstract: A method for monitoring an aircraft engine during flight, which includes the steps of: for at least one characteristic frequency of the operation of the engine, measuring at least one synchronous vibration level value; for at least one module of the engine, estimating an out-of-balance value of the module in accordance with the one or more vibration level values measured and at least one sensitivity coefficient; estimating a balancing margin of the module in accordance with the out-of-balance value of said module and a maximum threshold; (d) estimating a remaining number of flights of the aircraft prior to balancing and/or a quality indicator of a preceding balancing operation in accordance with the one or more estimated balancing margins and data representing past balancing operations of the engine.
    Type: Application
    Filed: May 4, 2016
    Publication date: October 25, 2018
    Applicant: Safran Aircraft Engines
    Inventors: Josselin COUPARD, Ronaqn Louis CASTREC, Rafik ZOUARI