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US 2026/0249979 A1Published application
The sequence in which safety functions are activated in propeller governors or controllers to mitigate undesirable effects occurring during flight
AssigneePratt & Whitney Canada Corp.
InventorJAGODA KRZYWON
Life of this patent
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Abstract
An apparatus comprising a propeller and an engine configured to drive the propeller. A controller is configured to control fuel flow to the engine to decelerate the propeller responsive to detection of a propeller speed exceeding a predetermined threshold.
Claims20
An apparatus, comprising:
- a propeller;
- an engine configured to drive the propeller;
- and
- a controller configured to control fuel flow to the engine to decelerate the propeller responsive to detection of a propeller speed exceeding a predetermined threshold speed.
1 more element
A method, comprising:
- driving a propeller with an engine;
- detecting propeller speed of the propeller exceeding a predetermined threshold speed using a controller;
- and
- controlling a fuel flow to the engine to decelerate the propeller responsive to detection of the propeller speed exceeding the predetermined threshold speed using the controller.
1 more element
An apparatus, comprising:
- a controller configured to generate a control signal to control fuel flow to an engine to decelerate a propeller responsive to detection of a propeller speed exceeding a predetermined threshold;
- an input to the controller for receiving a speed signal from the propeller;
- and
- an output for providing the control signal to the engine configured to control the fuel flow to the engine.
1 more element
Dependencies are inferred from the claim text.