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US 3,937,238 AGranted
Variable area engine inlet
AssigneeUnited Technologies Corporation
InventorsDonald J. Stewart, Richard A. Streib
Life of this patent
Estimating the term…
Abstract
An inlet for a gas turbine power plant with a translating annular ring which cooperates with the nose cone to reduce the effective inlet area, serving to reduce compressor noise.
Claims9
An inlet for a gas turbine power plant including
- an outer ring forming the outer wall of the inlet,
- an inner nose cone defining the inner wall of the inlet,
- an annular ring positioned between the outer ring and the nose cone and having a trailing edge positioned substantially in engagement with the nose cone, and
- means for moving said annular ring axially to position it such that the trailing edge is movable out from the nose cone.
1 more element
An inlet for admission of air to the compressor of a gas turbine engine, said inlet including:
- a nose cone forming the inner wall of the air path to the compressor,
- a surrounding member forming the outer wall of the air path to the compressor,
- an annular ring positioned between said nose cone and said member to establish flow areas on opposite sides of said ring, said ring having a trailing edge no larger in diameter than the largest diameter of the nose cone,
- struts extending from one of said walls to said ring for holding said ring in predetermined relation to the walls, and
- means for translating said ring axially to position the trailing edge in contact with the nose cone or in axially spaced relation thereto.
2 more elements
Dependencies are inferred from the claim text.