Vane arm assembly

Patent metadata

Field	Value
Publication number	US-2016201499-A1
Application number	US-201414913043-A
Country	US
Kind code	A1
Filing date	Jun 4, 2014
Priority date	Aug 22, 2013
Publication date	Jul 14, 2016
Grant date	—

Abstract

An assembly for operating a device, such as a variable vane, has an arm, a stem to which the arm is connected, the stem having a slot, and a member having a tab which fits into the slot.

First claim

What is claimed is:

1 . An assembly for operating a device, said assembly comprising:
an arm; a stem to which said arm is connected; said stem having a slot; and a member having a tab which fits into said slot.

2 . The assembly of claim 1 , wherein said member has a first portion which overlaps said arm.

3 . The assembly of claim 2 , wherein an engagement device is used to join said arm to said stem and said overlapping portion of said member includes an opening for receiving a portion of said engagement device, two spaced apart projection members abutting a surface of said arm and a slot between said two spaced apart projection members.

4 . The assembly of claim 2 , wherein said member has a second portion extending at a right angle to said first portion and connecting said first portion and said tab.

5 . The assembly of claim 4 , further comprising said arm having a slot and said second portion having a width so that said second portion fits within said slot.

6 . The assembly of claim 1 , wherein said stem has an opening in a surface and said assembly further comprises a threaded insert fitting into said opening.

7 . The assembly of claim 1 , wherein said stem has angled surfaces and said arm has a surface which mates with said angled surfaces.

8 . The assembly of claim 1 , wherein said slot is in an end surface of said stem.

9 . The assembly of claim 1 , wherein said member is a washer.

10 . The assembly of claim 1 , wherein said device is a variable vane.

11 . A vane arm assembly for a gas turbine engine comprising:
an arm; a vane having an integrally formed stem to which said arm is connected; said stem having a slot; and a member having a tab which fits into said slot.

12 . The assembly of claim 11 , wherein said member has a first portion which overlaps said arm.

13 . The assembly of claim 12 , wherein an engagement device is used to join said arm to said stem and said overlapping portion of said member includes an opening for receiving a portion of said engagement device, two spaced apart projection members abutting a surface of said arm, and a slot between said two spaced apart projection members.

14 . The assembly of claim 12 , wherein said member has a second portion extending at a right angle to said first portion and connecting said first portion and said tab.

15 . The assembly of claim 14 , further comprising said arm having a slot and said second portion having a width so that said second portion fits within said slot.

16 . The assembly of claim 11 , wherein said stem has an opening in a surface and said assembly further comprises a threaded insert fitting into said opening.

17 . The assembly of claim 11 , wherein said stem has angled surfaces and said arm has a surface which mates with said angled surfaces.

18 . The assembly of claim 11 , wherein said slot is in an end surface of said stem.

19 . The assembly of claim 11 , wherein said member is a washer.

20 . The assembly of claim 11 , further comprising means for changing the position of said vane and said changing means being connected to said arm.

Assignees

• United Technologies Corp

Inventors

• Pudvah Bernard W
• Gasmen Eugene C
• St Mary Christopher
• Wiecko Stanley

Classifications

• F01D9/041

  using blades (F01D5/148 takes precedence) · CPC title

• F04D29/563

  specially adapted for elastic fluid pumps · CPC title

• F04D29/542

  Bladed diffusers (fixing blades to stators F01D9/042) · CPC title

• F05D2220/32

  in gas turbines · CPC title

• F01D17/14 Primary

  varying effective cross-sectional area of nozzles or guide conduits · CPC title