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US 5,476,224 AGranted
Variable area outlet of a gas turbine engine discharge nozzle
AssigneeROLLS-ROYCE plc
InventorRobert C. Tonks
Life of this patent
Estimating the term…
Abstract
A variable area exit for a gas turbine engine discharge nozzle having a generally rectangular outlet includes a pair of rotatable flaps which extend between opposing sidewalls of the nozzle. Each of the flaps are provided with a profiled cam track which cooperates with a cam roller mounted on an axially moveable shroud ring. The shroud ring is coaxially disposed about the nozzle axis so that translation of the shroud causes the flaps to rotate and the nozzle exit area to alter.
Claims5
A gas turbine engine discharge nozzle comprising:
- a pair of axially extending parallel sidewalls,
- a single pair of opposing elements which extend between the sidewalls and which combine with the sidewalls to define an outlet flow periphery, a first of the elements being mounted for rotation about a first axis orthogonal to the sidewalls, and a second of the elements being mounted for rotation about a second axis parallel to the first axis,
- cam means fixed in relation to each of the elements,
- an axially translatable actuator ring which engages the cam means of each element so that translation of the ring causes the elements to rotate and the flow area to alter, and
- bearing means for rotatably mounting the nozzle about an axis remote from said outlet flow periphery.
2 more elements
Dependencies are inferred from the claim text.