Patents by Inventor Cesar Celis Perez

Cesar Celis Perez 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).

  • Vortex generators to improve performance of flush air inlets
    Patent number: 8544799
    Abstract: A VG (vortex generator) placed on a body surface (aircraft or similar), upstream of a flush air inlet, in order to generate vortexes that will sweep away the boundary layer in front of the inlet, inducing a downwash effect in the freestream airflow, such VG consisting of a wing (1) parallel to the surface of the aircraft or similar, said wing supported by a support (2) or a pair of supports (2) such as fins disposed in a divergent angle; the VG considerably improves the inlet ram recovery ratio and the mass flow ratio of the air inlet and it has an effect of reduction of the VG boundary layer thickness, thus reducing the distortion level of the flow entering the inlet as the inlet ingests more freestream air and the vortexes are not ingested by the inlet.
    Type: Grant
    Filed: February 15, 2008
    Date of Patent: October 1, 2013
    Assignee: Embraer S.A.
    Inventors: Luis Fernando Figueira Da Silva, Sandro Barros Ferreira, Cesar Celis Perez, Guilherme Lara Oliveira, Antonio Batista De Jesus
  • VORTEX GENERATOR FOR FLUSH AIR INLETS PERFORMANCE IMPROVEMENT
    Publication number: 20110042518
    Abstract: A VG (vortex generator) placed on a body surface (aircraft or similar), upstream of a flush air inlet, in order to generate vortexes that will sweep away the boundary layer in front of the inlet, inducing a downwash effect in the freestream airflow, such VG consisting of a wing (1) parallel to the surface of the aircraft or similar, said wing supported by a support (2) or a pair of supports (2) such as fins disposed in a divergent angle; the VG considerably improves the inlet ram recovery ratio and the mass flow ratio of the air inlet and it has an effect of reduction of the VG boundary layer thickness, thus reducing the distortion level of the flow entering the inlet as the inlet ingests more freestream air and the vortexes are not ingested by the inlet.
    Type: Application
    Filed: February 15, 2008
    Publication date: February 24, 2011
    Inventors: Luis Fernando Figueira Da Silva, Sandro Barros Ferreira, Cesar Celis Perez, Guilherme Lara Oliveira, Antonio Batista De Jesus