Patents by Inventor Romuald Previtali

Romuald Previtali 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 the early detection of aerodynamic instabilities in a turbomachine compressor
    Patent number: 6755617
    Abstract: A method for the early detection of aerodynamic instability in a turbomachine compressor is described which involves collecting and normalizing signals from sensors distributed uniformly around the circumference of the compressor and detecting events for which the normalized signals do not pass through a zero value during a length of time Tz which is at least greater than the time taken for two successive moving blades to travel past the sensor. A decision regarding the imminence of aerodynamic instability is then taken after the detected events have been analyzed and decision criteria have been applied. The decision criteria may be based on the event detection rate and/or on the spatio-temporal position of the events detected across all the sensors.
    Type: Grant
    Filed: January 30, 2001
    Date of Patent: June 29, 2004
    Assignee: SNECMA Moteurs
    Inventors: Jean-François Escuret, Thierry Leconte, Romuald Previtali
  • Method for the early detection of aerodynamic instabilities in a turbomachine compressor
    Publication number: 20010014837
    Abstract: A method for the early detection of aerodynamic instability in a turbomachine compressor is described which involves collecting and normalizing signals from sensors distributed uniformly around the circumference of the compressor and detecting events for which the normalized signals do not pass through a zero value during a length of time Tz which is at least greater than the time taken for two successive moving blades to travel past the sensor. A decision regarding the imminence of aerodynamic instability is then taken after the detected events have been analyzed and decision criteria have been applied. The decision criteria may be based on the event detection rate and/or on the spatio-temporal position of the events detected across all the sensors.
    Type: Application
    Filed: January 30, 2001
    Publication date: August 16, 2001
    Applicant: SNECMA MOTEURS
    Inventors: Jean-Francois Escuret, Thierry Leconte, Romuald Previtali