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EMERGENCY DESCENT INTERVENTION SYSTEM

  • US 20110224849A1
  • Filed: 09/10/2010
  • Published: 09/15/2011
  • Est. Priority Date: 09/11/2009
  • Status: Active Grant
First Claim
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1. An emergency descent intervention system for a piston powered aircraft,said aircraft having an engine with an exhaust gas driven turbocharger with a turbocharger inlet, the engine having an exhaust gas manifold, said exhaust gas manifold (a) fluidly connected to said turbocharger inlet and to an exhaust gas bypass outlet, and (b) having an exhaust gas bypass valve, said exhaust bypass valve configured to regulate the flow of exhaust gas to said exhaust gas bypass outlet and to said turbocharger inlet, said aircraft having a flight management system, said flight management system having a visual display and providing aircraft directional control signals in accordance with programmed directional instructions, and altitude control signals in accordance with programmed altitude instructions, said emergency descent intervention system comprising:

  • a pilot challenge system and an alarm system, said pilot challenge system and said alarm system both integrated with said flight management system, said emergency descent intervention system configured to determine (1) a first latency period for pilot interrogation, and (2) a second latency period for alarm activation;

    a reset system to reset the pilot challenge system when a response is received during the first latency period or during the second latency period;

    a descent activation system that determines a target altitude and overrides said flight management system programmed altitude, controls descent to said target altitude, and when said aircraft reaches said target altitude, maintains said target altitude;

    an actuator for said exhaust gas bypass valve, said actuator controllable via said flight management system to regulate inlet air to, and power output from said engine, to enable said aircraft to descent to, and maintain, said target altitude.

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