VARIABLE INLET GUARD SCREEN FOR AN INLET OF AN AIRCRAFT ENGINE
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United States of America Patent
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Issued Date -
Apr 10, 2025
app pub date -
Oct 5, 2023
filing date -
Oct 5, 2023
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Abstract
A system for an aircraft includes an aircraft engine having a central axis with a flowpath projecting into the aircraft engine from an airflow inlet. An inlet plenum at the airflow inlet extends between a front wall and a rear wall along the central axis. An inlet guard is arranged at the airflow inlet and extends across the flowpath. The inlet guard includes a first screen extending circumferentially about the central axis and axially from the front wall to the rear wall, and a second screen radially outward of the first screen and axially overlapping the first screen. An actuator is operable to move the first screen and the second screen relative to one another in one or more of a radial, axial and circumferential direction to shed ice from the inlet guard.
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