ANTENNA SETTING UP AND TAKING UP WINCH DRIVE AIR TURBINE Russian patent published in 2006 - IPC F01D15/06 

FIELD: aircraft engineering.

SUBSTANCE: invention relates to turbomachines designed for driving auxiliary power plants, particularly, to air turbines using for operation air velocity head at flight. Proposed winch drive air turbine contains inlet diffuser formed by central fairing and shell, turbine stage and turbine outlet arranged in neck of branch pipe made to de Laval nozzle type and enclosing turbine housing from outside. Ring projection with smooth outlines is made on central fairing of inlet diffuser before nozzle assembly of turbine stage. Widening outlet part of branch pipe made to de Laval nozzle type consists of separate elements in form of leaf diffuser. Leaves of diffuser are installed so that solid opening angle of outlet diffuser part of branch pipe is 40°-60°.

EFFECT: increased efficiency of drive - air turbine owing to higher efficiency of through inlet and inlet and outlet channels.

5 dwg