Variable area bypass nozzle

Patent metadata

Field	Value
Publication number	US-10260427-B2
Application number	US-201414203637-A
Country	US
Kind code	B2
Filing date	Mar 11, 2014
Priority date	Mar 15, 2013
Publication date	Apr 16, 2019
Grant date	Apr 16, 2019

Abstract

A gas turbine engine includes a first duct, a second duct, and a bladder. The bladder is disposed in the first duct and communicates with the second duct. A first gas flow is capable of passing through the first duct and a second gas flow is capable of passing through the second duct. The bladder is adapted to receive a bleed gas flow from the second duct and inflate within the first duct, thereby decreasing an area in the first duct through which the first gas flow is capable of traveling.

First claim

The invention claimed is:

1. A kit for a gas turbine engine comprising:
a movable component;
a bias element connected to the movable component; and
a bladder configured to be connected to the movable component and adapted to receive a bleed air therein, wherein the bias element is adapted to exert a bias force on the movable component and the bladder, and wherein the bladder is permeable to allow a gas flow to pass through the bladder.

2. The kit of claim 1 , wherein the bladder comprises a wire mesh.

3. The kit of claim 1 , wherein the bias force of the bias element biases the bladder toward a deflated and flattened position.

4. The kit of claim 1 , wherein the kit further includes:
a stationary component, wherein the bias element is connected between the stationary component and the movable component.

Assignees

• United Technologies Corp

Inventors

• Buey John R
• Martin Keegan M

Classifications

• F02K3/075

  controlling flow ratio between flows · CPC title

• F02K1/085

  by transversely deforming an internal member · CPC title

• F02C9/18 Primary

  by bleeding, bypassing or acting on variable working fluid interconnections between turbines or compressors or their stages {(F02C3/113 takes precedence)} · CPC title

• Y10T137/2514

  Self-proportioning flow systems · CPC title

• Y10T137/0363

  For producing proportionate flow · CPC title