Variable inlet guide vane with actuator
AssigneeFlorida Turbine Technologies, Inc.
InventorsWilliam W Pankey, Jack W. Wilson, Jr.
Life of this patent
Estimating the term…
Abstract
A variable inlet guide vane assembly for a gas turbine engine, where the guide vanes are pivotably connected to a sync ring that is contained within an annular groove within the casing so that leakage through holes in the casing is minimized. The guide vanes include a slider mechanism on one of the ends that will allow for both an axial and a rotational movement of the guide vane pin when the guide vanes pivot about a fixed pin on an opposite end of the guide vanes. a round rotary vane actuator with a height much less than a diameter is mounted outside of the casing and connects to the sync ring through a driving linkage.
Claims17
A variable inlet guide vane assembly for a gas turbine engine, comprising:
- an engine casing forming an outer shroud for the inlet guide vane assembly;
- an inner facing annular groove formed in the engine casing;
- an inner shroud;
- a variable guide vane having an airfoil with a leading edge and a trailing edge;
- a first pivot pin extending from one of the edges of the airfoil;
- a hole in one of the inner or outer casings for the pivot pin to rotate within;
- a second pivot pin extending from the other of the edges of the airfoil;
- an annular sync ring mounted within the inner facing annular groove for circumferential movement only;
- and,
- rotational and axial movement connection means formed between the inner or outer casing and the first pivot pin to allow for the guide vane to be pivoted about the first pivot pin.
A variable inlet guide vane assembly for a gas turbine engine, comprising:
- an annular arrangement of variable inlet guide vanes pivotably mounted within an outer shroud of an engine casing;
- the outer shroud having an annular groove formed within the outer shroud;
- an annular sync ring secured within the annular groove so that only circumferential motion can occur for the sync ring;
- one end of the guide vanes being pivoted within a hole in the outer shroud through a rotational and axial movement connection means to allow for the guide vanes to pivot about the one end;
- and,
- the other end of the guide vanes being connected to the sync ring.
Dependencies are inferred from the claim text.