Bleed valve assembly

Patent metadata

Field	Value
Publication number	US-2016010564-A1
Application number	US-201414771289-A
Country	US
Kind code	A1
Filing date	Mar 12, 2014
Priority date	Mar 14, 2013
Publication date	Jan 14, 2016
Grant date	—

Abstract

A bleed valve assembly according to an exemplary aspect of the present disclosure includes, among other things, a bleed adaptor having an inlet portion, a fitting opposite the inlet portion, an adaptor body that extends between the inlet portion and the fitting, and a bleed opening disposed on the adaptor body that is selectively exposed to direct fluid into the bleed adaptor.

First claim

What is claimed is:

1 . A bleed valve assembly, comprising:
a bleed adaptor having:
an inlet portion;
a fitting opposite said inlet portion;
an adaptor body that extends between said inlet portion and said fitting; and
a bleed opening disposed on said adaptor body that is selectively exposed to direct fluid into said bleed adaptor.

2 . The bleed valve assembly as recited in claim 1 , wherein said fluid includes at least one of air, mist and fuel.

3 . The bleed valve assembly as recited in claim 1 , comprising a hose connected to said fitting.

4 . The bleed valve assembly as recited in claim 1 , comprising a nut and a threaded portion between said inlet portion and said fitting.

5 . The bleed valve assembly as recited in claim 4 , comprising a seal between said nut and said threaded portion.

6 . The bleed valve assembly as recited in claim 1 , wherein an inlet portion of said bleed adaptor is received against a seat of a tube boss to prevent said fluid from entering said bleed adaptor.

7 . The bleed valve assembly as recited in claim 6 , wherein said bleed opening is disposed on said inlet portion.

8 . The bleed valve assembly as recited in claim 6 , wherein said inlet portion of said bleed adaptor is selectively spaced from said seat to direct said fluid into said bleed opening.

9 . The bleed valve assembly as recited in claim 1 , wherein an inlet portion of said bleed adaptor is moveable away from a seat of a tube boss to expose said bleed opening.

10 . The bleed valve assembly as recited in claim 1 , wherein said bleed adaptor is threadably received by a tube boss.

11 . A gas turbine engine, comprising:
a tubing system that circulates a fluid; a bleed valve assembly mounted to at least one tube portion of said tubing system; and said bleed valve assembly including a tube boss mounted to said at least one tube portion and a bleed adaptor connected to said tube boss, said bleed adaptor movable between a first position and a second position relative to said tube boss to expose a bleed opening of said bleed adaptor to fluid inside said at least one tube portion.

12 . The gas turbine engine as recited in claim 11 , wherein said tubing system circulates at least one of airflow, fuel and lubricant.

13 . The gas turbine engine as recited in claim 11 , wherein an inlet portion of said bleed adaptor is received against a seat of said tube boss in said first position and is spaced from said seat in said second position.

14 . The gas turbine engine as recited in claim 13 , wherein said bleed adaptor is threadably connected to said tube boss.

15 . The gas turbine engine as recited in claim 11 , wherein said bleed opening is disposed on an inlet portion of said bleed adaptor.

16 . The gas turbine engine as recited in claim 11 , comprising a hose connected to said bleed adaptor on an opposite side from said tube boss.

17 . A method of bleeding fluid from a tubing system, comprising:
selectively exposing a bleed opening of a bleed adaptor that is connected to a tube portion of the tubing system; and communicating fluid from inside of the tube portion into the bleed opening to remove the fluid from the tube portion.

18 . The method as recited in claim 17 , wherein the step of selectively exposing includes:
moving the bleed adaptor from a first position in which the bleed adaptor is received against a seat of a tube boss mounted to the tube portion and a second position in which the bleed adaptor is spaced from the seat.

19 . The method as recited in claim 17 , wherein the step of communicating includes:
directing the fluid from the tube portion, through the bleed opening, and into a passage of the bleed adaptor.

20 . The method as recited in claim 17 , comprising:
communicating the fluid through the bleed adaptor and then through a hose connected to the bleed adaptor.

Assignees

• United Technologies Corp

Inventors

• Lior Raphael
• Pavlik Mark G

Classifications

• F02C9/52

  by bleeding or by-passing the working fluid · CPC title

• F16K1/34

  Cutting-off parts, e.g. valve members, seats (F16K1/06, F16K1/12, F16K1/14, F16K1/26 take precedence) · CPC title

• F02C7/057

  Control or regulation (conjointly with fuel supply control F02C9/50, with nozzle area control F02K1/16) · CPC title

• F16K24/04

  for venting only (F16K24/02 takes precedence) · CPC title

• F05D2260/606

  Bypassing the fluid · CPC title