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METHOD AND MEANS FOR OPPOSING THE ROTATION OF A WINDMILLING TURBOJET ROTOR DURING FLIGHT

  • US 3,759,467 A
  • Filed: 07/09/1970
  • Issued: 09/18/1973
  • Est. Priority Date: 07/10/1969
  • Status: Expired due to Term
First Claim
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1. A method for opposing during flight the windmilling of the rotor of a disabled turbojet engine of an aircraft caUsed by a flow of air under dynamic pressure through said disabled turbojet engine, wherein said turbojet engine includes an exhaust assembly adapted to discharge a gas flow in the rearward direction, and a thrust reversal device movable between an operative position projecting into said gas flow to divert said flow in a direction at an angle to said rearward direction, and an inoperative retracted position, said method comprising the steps of (1) moving said thrust reversal device into its operative position, whereby the flow of air which passes through said disabled turbojet engine is diverted by said thrust reversal device, and (2) throttling said diverted flow to increase the discharge pressure of said gas flow and thus increase the resistance in said engine downstream of said rotor sufficient to substantially prevent further gas flow through said disabled engine.

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