US 2018/0328313 A1Published application

Coil spring hanger for exhaust duct liner

AssigneeUnited Technologies Corporation

InventorsPaul R. Senofonte, Timothy J. McAlice

Life of this patent

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Abstract

A method includes providing an exhaust liner as a first duct, providing a second duct having an opening therein, and spacing the first duct radially inward of the second duct. A spring connects the first and second ducts together and has first and second ends. A first mount comprises a first bracket portion associated with the spring and a second bracket portion directly fixed to the first duct. The first bracket portion is directly fixed to the first end of the spring and the second end of the spring is fixed to a second mount that comprises a casing plate having an area greater than the opening. The first end of the spring and the first bracket portion are inserted through the opening and the first bracket portion is attached to the second bracket portion. The casing plate is directly fixed to a radially outward facing surface of the second duct.

Claims10

Dependent claims

A method of supporting a liner of a gas turbine engine comprising:

providing an exhaust liner that comprises a first duct and providing a second duct having an opening therein;
spacing the first duct radially inward of the second duct;
providing a spring to connect the first and second ducts together, the spring having first and second ends;
providing a first mount comprising a first bracket portion associated with the spring and a second bracket portion directly fixed to the first duct;
fixing the first bracket portion directly to the first end of the spring;
fixing the second end of the spring to a second mount, the second mount comprising a casing plate having an area greater than the opening;
inserting the first end of the spring and the first bracket portion through the opening;
attaching the first bracket portion to the second bracket portion;
and
directly fixing the casing plate to a radially outward facing surface of the second duct.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/036,130Filed 16 Jul 2018
Priority: 22 Oct 2012
Published: 15 Nov 2018
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

F02K 1/822
Jet pipe walls, e.g. liners: heat insulating structures or liners, cooling arrangements, e.g. post combustion liners; Infrared radiation suppressors
F05D 2250/25
Three-dimensional: helical
F05D 2260/30
Function: retaining components in desired mutual position
Y02T 50/60
Aeronautics or air transport: efficient propulsion technologies, e.g. for aircraft

Family

Application13/656,888Division · filed 22 Oct 2012
Application16/036,130Division
US 10,054,080 B2Related patent
US 10,125,723 B1Related patent
US 2014/0109593 A1Published application
US 2018/0328313 A1This patent

From the US filing history. Foreign family members aren’t listed.