Device for protection against icing for aircraft engines and related de-icing method
First Claim
1. A device for protecting against ice accretion in aircraft engines at idling speed comprising at least one sensor, sensitive to an amount of accumulated ice, arranged in the air intake of an aircraft engine, a system for measuring said amount and for comparing said amount to a predetermined threshold and a trigger system intended to initiate a response to a detection of the predetermined threshold being surpassed, wherein the trigger system is connected to an engine control system comprising means for governing engine idling speed, said response comprising an engine speed increase timed by the engine control system.
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Accused Products
Abstract
A device for protection against icing for aircraft engines including at least one sensor, sensitive to an amount of accumulated ice, arranged in the air intake of an aircraft engine, a system for measuring the amount and comparing the amount to be predetermined threshold and a triggering system for launching a response to the detection of the crossing of the predetermined threshold, the response may be an alarm, an increase in the engine power delayed by the engine control system or the return of hot air upstream of the engine.
21 Citations
13 Claims
- 1. A device for protecting against ice accretion in aircraft engines at idling speed comprising at least one sensor, sensitive to an amount of accumulated ice, arranged in the air intake of an aircraft engine, a system for measuring said amount and for comparing said amount to a predetermined threshold and a trigger system intended to initiate a response to a detection of the predetermined threshold being surpassed, wherein the trigger system is connected to an engine control system comprising means for governing engine idling speed, said response comprising an engine speed increase timed by the engine control system.
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9. A de-icing method for an aircraft engine at idling speed, comprising:
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measuring an amount of ice on at least one wall of an engine element, comparing the amount of ice measured to a predetermined threshold amount triggering a response to the predetermined threshold being surpassed, and increasing the engine speed in response to the predetermined threshold being surpassed to perform a de-icing phase. - View Dependent Claims (10, 11, 12, 13)
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Specification