Egress seal fitting

Patent metadata

Field	Value
Publication number	US-11070041-B2
Application number	US-201916365388-A
Country	US
Kind code	B2
Filing date	Mar 26, 2019
Priority date	Mar 26, 2019
Publication date	Jul 20, 2021
Grant date	Jul 20, 2021

Abstract

An egress seal fitting for a bulkhead penetration may comprise a housing, a driver configured to couple to the housing and define a cavity within the housing, and a seal member configured to be disposed within the cavity of the housing, wherein the driver is configured to pass a cable through the housing and apply pressure to the seal member.

First claim

What is claimed is:

1. An egress seal fitting for a bulkhead penetration, comprising:
a housing separable into a first housing half and a second housing half, wherein the housing comprises an annular cylindrical structure extending between a flanged portion and a base portion;
a driver configured to couple to the housing in response to being inserted therewithin, wherein the driver comprises an annular cylindrical drive portion and a head, wherein the driver is separable into a first driver half and a second driver half, wherein the driver defines a first driver cavity within the housing; and
a seal member disposed within the driver cavity of the housing, wherein the driver is configured to pass a penetrating member through the housing between the first driver half and the second driver half and apply pressure to the seal member,
wherein the flanged portion of the housing includes a tool interface defined by a plurality of penetrations extending through the flanged portion, wherein the plurality of penetrations are arranged circumferentially about the first driver cavity and radially outward thereof, and wherein each penetration of the plurality of penetrations are circumferentially equidistant.

2. The egress seal fitting of claim 1 , wherein each of the first housing half and the second housing half comprise a corresponding externally threaded surface and a corresponding internally threaded surface.

3. The egress seal fitting of claim 2 , wherein the internally threaded surface of the first housing half and the internally threaded surface of the second housing half each extend only partially over an internal diameter of the annular cylindrical structure to define a driver stop.

4. The egress seal fitting of claim 1 , wherein the driver is configured to apply an axial pressure to the seal member and expand the seal member radially between the housing and the penetrating member.

5. The egress seal fitting of claim 1 , wherein the drive portion comprises an externally threaded surface.

6. A gas turbine engine, comprising:
a compressor section configured to compress a gas;
a combustor section aft of the compressor section and configured to combust the gas;
a turbine section aft of the combustor section and configured to extract work from the gas;
a pressure bulkhead dividing a first pressure compartment from a second pressure compartment, wherein a pressure differential exists between the first pressure compartment and the second pressure compartment; and
an egress seal fitting coupled to a penetration of the pressure bulkhead, comprising:
a housing separable into a first housing half and a second housing half, wherein the housing comprises an annular cylindrical structure extending between a flanged portion and a base portion;
a driver coupled to the housing, wherein the driver comprises an annular cylindrical drive portion and a head, wherein the driver is separable into a first driver half and a second driver half, wherein the driver defines a first driver cavity within the housing; and
a seal member disposed within the driver cavity of the housing and compressed by the driver, wherein the driver is configured to pass a penetrating member between the first driver half and the second driver half through the housing and expand the seal member radially between the first driver cavity of the housing and the penetrating member,
wherein the flanged portion of the housing includes a tool interface defined by a plurality of penetrations extending through the flanged portion, wherein the plurality of penetrations are arranged circumferentially about the first driver cavity and radially outward thereof, and wherein each penetration of the plurality of penetrations are circumferentially equidistant.

7. The gas turbine engine of claim 6 , wherein each of the first housing half and the second housing half comprise a corresponding externally threaded surface and a corresponding internally threaded surface.

8. The gas turbine engine of claim 7 , wherein the internally threaded surface of the first housing half and the internally threaded surface of the second housing half each extend only partially over an internal diameter of the annular cylindrical structure to define a driver stop.

9. The gas turbine engine of claim 6 , wherein the drive portion comprises an externally threaded surface.

10. The gas turbine engine of claim 6 , wherein the housing comprises an elongate base portion including the first driver cavity and a second driver cavity.

11. A method of sealing a pressure bulkhead penetration, the method comprising:
disposing a housing about a penetrating member passing through the bulkhead penetration, wherein the housing comprises a first housing half and a second housing half, wherein the housing comprises an annular cylindrical structure extending between a flanged portion and a base portion;
coupling the housing to the pressure bulkhead penetration, wherein coupling comprises applying a torque to the housing at the flanged portion via a tool interface, wherein the tool interface is defined by a plurality of penetrations extending through the flanged portion, wherein the plurality of penetrations are arranged circumferentially about a cavity of the housing and radially outward thereof, and wherein each penetration of the plurality of penetrations are circumferentially equidistant;
disposing a seal member within the cavity of the housing;
disposing a driver about the penetrating member and coupling the driver to the housing and within the cavity; and
applying a pressure to the seal member via the driver and expanding the seal member radially between the housing and the penetrating member in response to the pressure,
wherein the driver comprises an annular cylindrical drive portion and a head, wherein the driver comprises a first driver half and a second driver half, wherein the driver defines a driver cavity within the housing.

Assignees

• United Technologies Corp
• Raytheon Tech Corp

Inventors

• Warren Eli Cole
• Negash Jerusalem
• Ford Kevin A

Classifications

• F16J15/188

  Split assemblies · CPC title

• F01D9/065

  Fluid supply or removal conduits traversing the working fluid flow, e.g. for lubrication-, cooling-, or sealing fluids (see also F01D25/16, F01D25/24 and F01D25/26) · CPC title

• F05D2260/31

  Retaining bolts or nuts · CPC title

• F05D2240/55

  Seals · CPC title

• F01D17/08

  responsive to condition of working-fluid, e.g. pressure · CPC title