Resources Contact Us Home
Jet engine and method of operating the same

Image Number 2 for United States Patent #4306412.

A jet engine having its turbine section and exhaust nozzles particularly arranged to alleviate noise. There is a forward turbine section positioned in a first passageway to receive all or substantially all of the gaseous discharge from the combustion section of the jet engine. There are second and third coannular passageways positioned downstream of the first passageway, with the second passageway being positioned radially inwardly of the third passageway. A second turbine stage is positioned in the second inner passageway to receive a portion of the gaseous flow from the first passageway so as to be driven thereby, with the first portion of gaseous flow being discharged at a relatively low velocity at a radially inward location. A second portion of the gaseous flow passes from the first passageway to the third passageway and is discharged at a relatively high velocity in a generally annular pattern radially outward of the flow of the first portion of the gaseous flow. Thus the gaseous flow is in a velocity profile to alleviate noise from the engine.

  Recently Added Patents
Methods, devices and software applications for facilitating a development of a computer program
Method for culturing lactic acid bacterium and method for producing fermented milk
Targeting agents for enhancing radiation therapy
Switching apparatus and controlling method thereof
Compositions and methods for inhibition of MMP13:MMP-substrate interactions
Authenticating and off-loading IPTV operations from mobile devices to fixed rendering viewing devices
  Randomly Featured Patents
Natural feeling flexible contraceptive device
Method for blow molding a CVJ boot
Method and apparatus for improved inspection of continuous webs
Inhibitors of prenyl-protein transferase
Message insert for a trailer hitch receiver
Portable and cartridge-based surface plasmon resonance sensing systems
Tire changer
Hall-Heroult electrolysis tank with asymmetrical cathodic bars and heat insulation
Vibratory sensor operating as a rate gyro about two axes and as a rate integrating gyro about the third one