IP Library Granted Patent US 10,727,656
Granted Patent B2
US 10,727,656 · App. 15/807,379 · Granted Jul 28, 2020

Igniter cable conduit for gas turbine engine

Inventors: Christopher Waitkus (Chicago, IL); Mark T. McAuliffe (Colchester, CT); Randall Lee Greenberg (Oxford, CT); Colby S. Dunn (East Hartford, CT)
Assignee: RAYTHEON TECHNOLOGIES CORPORATION
H02G3/0418F01D9/065F01D25/00F02C7/00F02C7/05F02C9/16H02G3/0437H02G3/22F02C3/04
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,727,656
App. No.
15/807,379
Granted
Jul 28, 2020
Kind
B2
Abstract

A cable conduit may comprise a head end, a sleeve having a foot end, a boot, and a split grommet having a first upper surface, wherein the head end is coupled to the sleeve opposite the foot end, wherein the boot comprises a first flange and is coupled to the foot end, wherein the head end comprises a second flange having a second upper surface and a cutout penetrating into an interior volume of the sleeve, and wherein the split grommet is coupled about the inner diameter of the cutout.

Claims (19)

1. 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 fan section configured to produce a bypass flow;

an outer case having an inner surface and an inner case having an outer surface defining a bypass flow duct there between; and

a cable conduit, disposed within the bypass flow duct, comprising:

a head end, a sleeve having a foot end, a boot, and a split grommet having a first upper surface,

wherein the head end is coupled to the sleeve opposite the foot end,

wherein the boot comprises a first flange and is coupled to the foot end,

wherein the head end comprises a second flange having a second upper surface and a cutout penetrating into an interior volume of the sleeve,

wherein the split grommet is coupled about an inner diameter of the cutout, and

wherein the second flange is coupled at the second upper surface to the inner surface of the outer case and the first flange is coupled to the outer surface of the inner case.

2. The gas turbine engine of claim 1 , wherein the cable conduit further comprises a forward section and an aft section.

3. The gas turbine engine of claim 2 , wherein the forward section comprises a first perforation through a forward aerodynamic surface and the aft section comprises a second perforation through an aft aerodynamic surface, wherein the first perforation and the second perforation are in fluid communication with the bypass flow duct and the interior volume of the sleeve, wherein a portion of the bypass flow passes through the first perforation into the interior volume and exits the interior volume through the second perforation.

4. The gas turbine engine of claim 3 , wherein the boot comprises a circumferential channel.

5. The gas turbine engine of claim 4 , wherein the forward section further comprises forward sleeve having a first distal end and the aft section further comprises an aft sleeve having a second distal end, wherein the first distal end and the second distal end are disposed within the circumferential channel.

6. The gas turbine engine of claim 5 , wherein the boot tends to allow the forward section and the aft section to translate in response to a differential thermal growth between the outer case and the inner case.

7. The gas turbine engine of claim 6 , wherein the sleeve comprises a sleeve locking feature.

8. The gas turbine engine of claim 6 , wherein the split grommet comprises a mating surface comprising at least one of an extrusion, a finger, a cavity, a pocket, a bore, or an embedded stud.

9. The gas turbine engine of claim 6 , wherein the sleeve comprises at least one of a circular cross section, an elliptical cross section, an oblate cross section, an angular cross section, a teardrop cross section, or an airfoil cross section.

Assignments (5)
CHANGE OF NAME Recorded Jul 27, 2023
From: RAYTHEON TECHNOLOGIES CORPORATION
To: RTX CORPORATION
Reel/Frame 064714/0001 →
CORRECTIVE ASSIGNMENT TO CORRECT THE AND REMOVE PATENT APPLICATION NUMBER 11886281 AND ADD PATENT APPLICATION NUMBER 14846874. TO CORRECT THE RECEIVING PARTY ADDRESS PREVIOUSLY RECORDED AT REEL: 054062 FRAME: 0001. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF ADDRESS. Recorded Mar 4, 2021
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 055659/0001 →
CHANGE OF NAME Recorded Sep 4, 2020
From: UNITED TECHNOLOGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 054062/0001 →
CHANGE OF NAME Recorded Jun 15, 2020
From: UNITED TECHNOLGIES CORPORATION
To: RAYTHEON TECHNOLOGIES CORPORATION
Reel/Frame 052943/0048 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 8, 2017
From: WAITKUS, CHRISTOPHER; MCAULIFFE, MARK T.; GREENBERG, RANDALL LEE; DUNN, COLBY S.
To: UNITED TECHNOLOGIES CORPORATION
Reel/Frame 044076/0370 →
Continuity (1)
Related Publication 20190140430A1 · May 9, 2019
Cited By (2)
US 12,209,750 US 12,326,258