IP Library Granted Patent US 10,006,305
Granted Patent B2
US 10,006,305 · App. 14/421,247 · Granted Jun 26, 2018

Tooling for removing sand from a turbine engine

Inventors: Gerard Derrien (Orsay, FR); Sebastien Wilk (Saulx-les-Chartreux, FR)
Assignee: SNECMA
F01D25/002B08B5/04B08B7/0021B08B7/0071B08B7/04B08B9/00F02C7/30
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Quick Facts
Patent No.
US 10,006,305
App. No.
14/421,247
Granted
Jun 26, 2018
Kind
B2
Abstract

Tooling for removing sand from a turbine engine, such as an airplane turbojet, the tooling including at least one endoscopic display device including a display and a duct having light guide and image transmission device mounted therein, a suction device having a suction device connected to a suction duct fastened to the duct of a display device, and a plasma jet generator device including a plasma torch connected to gas supply and electricity power supply suitable for operating the plasma torch, the plasma torch being fastened to the duct of an above-mentioned display device.

Claims (20)

1. A method of removing sand from a turbine engine, the method comprising:

providing a tooling comprising at least one endoscopic display device comprising a display and a duct having light guide and an image transmission device mounted therein, a suction device connected to a suction duct fastened by a common sheath to the duct of the at least one endoscopic display device, and a plasma jet generator device comprising a plasma torch connected to a gas supply and an electricity power supply suitable for operating said plasma torch, said plasma torch being fastened by a common sheath to the duct of the at least one endoscopic display device, wherein the suction device and the plasma jet generator device are coupled to a single endoscopic display device so as to form a single set of tooling;

inserting the plasma torch, the duct of the suction device, and the duct of the endoscopic display device simultaneously into the turbine engine in such a manner that the torch and free ends of said ducts are situated facing a surface to be cleaned;

using the plasma torch to detach a layer of particles, from the surface to be cleaned; and

using the suction duct to suck up the previously detached particles.

2. The method according to claim 1 , wherein the surface to be cleaned is a surface of a turbine disk.

3. A method of removing sand from a turbine engine, the method comprising:

providing a tooling comprising at least one endoscopic display device comprising a display and a duct having light guide and an image transmission device mounted therein, a suction device connected to a suction duct fastened by a common sheath to the duct of the at least one endoscopic display device, and a plasma jet generator device comprising a plasma torch connected to a gas supply and an electricity power supply suitable for operating said plasma torch, said plasma torch being fastened by a common sheath to the duct of the at least one endoscopic display device, wherein the tooling comprises a first set of tooling constituted by a first endoscopic display device coupled to the plasma jet generator device, and a second set of tooling constituted by a second endoscopic display device coupled to the suction device;

inserting both the plasma torch and the duct of the first endoscopic display device simultaneously in the turbine engine in such a manner that the plasma torch and a free end of said duct are situated facing a surface to be cleaned;

using the plasma torch to detach a layer of particles from the surface to be cleaned;

inserting both the suction duct and the duct of the second endoscopic display device simultaneously into the turbine engine in such a manner that ends of said ducts are situated facing the surface to be cleaned; and

using the suction duct to suck up the previously detached particles.

4. The method according to claim 3 , wherein the surface to be cleaned is a surface of a turbine disk.

5. A tooling for removing sand from a turbine engine, the tooling comprising:

at least one endoscopic display device comprising a display and a duct having light guide and an image transmission device mounted therein,

a suction device connected to a suction duct fastened by a common sheath to the duct of the least one endoscopic display device, and

a plasma jet generator device comprising a plasma torch connected to a gas supply and an electricity power supply suitable for operating said plasma torch, said plasma torch being fastened by a common sheath to the duct of the at least one endoscopic display device.

6. The tooling according to claim 5 , comprising a first set of tooling constituted by a first endoscopic display device coupled to the plasma jet generator device, and a second set of tooling constituted by a second endoscopic display device coupled to the suction device.

7. The tooling according to claim 5 , wherein the suction device and the plasma jet generator device are coupled to a single endoscopic display device so as to form a single set of tooling.

8. The tooling according to claim 5 , wherein the plasma torch is a cold plasma torch.

Assignments (3)
CORRECTIVE ASSIGNMENT TO CORRECT THE COVER SHEET TO REMOVE APPLICATION NOS. 10250419, 10786507, 10786409, 12416418, 12531115, 12996294, 12094637 12416422 PREVIOUSLY RECORDED ON REEL 046479 FRAME 0807. ASSIGNOR(S) HEREBY CONFIRMS THE CHANGE OF NAME. Recorded Aug 24, 2018
From: SNECMA
To: SAFRAN AIRCRAFT ENGINES
Reel/Frame 046939/0336 →
CHANGE OF NAME Recorded May 23, 2018
From: SNECMA
To: SAFRAN AIRCRAFT ENGINES
Reel/Frame 046479/0807 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 12, 2015
From: DERRIEN, GERARD; WILK, SEBASTIEN
To: SNECMA
Reel/Frame 034948/0907 →
Priority Claims (1)
FR 12 57808 · Aug 14, 2012 · national
Continuity (1)
Related Publication 20150198060A1 · Jul 16, 2015