Endoscopy system and corresponding method for examining gas turbines

Patent metadata

Field	Value
Publication number	US-9939349-B2
Application number	US-201214348223-A
Country	US
Kind code	B2
Filing date	Sep 28, 2012
Priority date	Sep 30, 2011
Publication date	Apr 10, 2018
Grant date	Apr 10, 2018

Abstract

The invention relates to an endoscopy system and a corresponding method for examining gas turbines, comprising an endoscope and a data processing unit, wherein the endoscope comprises an image recording unit, wherein the endoscope is configured to transmit recorded images of the image recording unit from the inside of the gas turbine to the data processing unit, wherein the endoscopy system is configured to position and align the endoscope comprising the image recording unit introduced into a gas turbine in the gas turbine in a defined manner.

First claim

What is claimed is:

1. An endoscopy system for examining a gas turbine, comprising:
an endoscope;
a data processing device,
wherein the endoscope comprises:
an image recording device,

wherein the endoscope is configured to be inserted into a gas turbine, capture one or more image recordings of an inside of the gas turbine via the image recording device, and transmit the one or more image recordings of the inside of the gas turbine from the image recording device to the data processing device,
wherein the data processing device is configured to process the one or more image recordings of the inside of the gas turbine so as to determine a position and orientation of the endoscope in the gas turbine,
wherein the data processing device is configured to process the one or more image recordings of the inside of the gas turbine so as to automatically determine a rotational position or an angle of rotation of a first shaft of the at least one shaft based on a marker or reference point in the one or more image recordings of the inside of the gas turbine, and
wherein the marker or reference point is a blade lock of the gas turbine,
wherein the data processing device is configured to assign image recordings of the inside of the gas turbine of the one or more image recordings of the inside of the gas turbine to parts or regions of the gas turbine by automatic image recognition of the marker or reference point; and
an electronically-controlled positioning apparatus,
wherein the electronically-controlled positioning apparatus is configured to position and orient the endoscope in the gas turbine,
wherein the endoscopy system is configured to use the position and orientation of the endoscope in the gas turbine determined via the data processing device to position and orient the endoscope in the gas turbine in a defined position and orientation of the endoscope in the gas turbine via the electronically-controlled positioning apparatus, and
wherein the endoscopy system is configured to control a rotary apparatus for rotating at least one shaft of the gas turbine.

2. The endoscopy system according to claim 1 ,
wherein the endoscopy system is configured to determine a relative position of the endoscope and the gas turbine.

3. The endoscopy system according to claim 1 ,
wherein the endoscopy system is configured to automatically capture image recordings of the inside of the gas turbine.

4. The endoscopy system according to claim 1 ,
wherein the endoscopy system is configured to automatically store or archive image recordings of the inside of the gas turbine.

5. The endoscopy system according to claim 1 ,
wherein the endoscopy system is configured to capture at least one image recording at a corresponding at least one rotational position of the at least one shaft of the gas turbine.

6. The endoscopy system according to claim 1 ,
wherein the image recording device is configured to capture image recordings in synchronization with a rotational movement of the at least one shaft of the gas turbine.

7. The endoscopy system according to claim 1 ,
wherein the data processing device is configured to compare image recordings of the inside of the gas turbine with reference image recordings of the inside of the gas turbine and/or with archived image recordings of the inside of the gas turbine.

8. The endoscopy system according to claim 1 ,
wherein the data processing device is configured to automatically identify deviations from a desired state and/or damage to parts or regions of the gas turbine.

9. The endoscopy system according to claim 1 ,
wherein the data processing device is configured to gauge and/or classify and/or track progression of damage to parts or regions inside the gas turbine.

10. The endoscopy system according to claim 1 ,
wherein the data processing device is configured to carry out a forecasting procedure in order to forecast further progression of damage to parts or regions inside the gas turbine.

11. A method for examining a gas turbine using an endoscopy system according to claim 1 , comprising:
inserting the endoscope of the endoscopy system into a gas turbine;
capturing one or more image recordings of an inside of the gas turbine via the image recording device;
transmitting the one or more image recordings of the inside of the gas turbine from the image recording device to the data processing device;
processing the one or more image recordings of the inside of the gas turbine so as to determine a position and orientation of the endoscope in the gas turbine via the data processing device;
positioning and orienting the endoscope in the gas turbine in the defined position and orientation of the endoscope in the gas turbine determined via the data processing device, via the electronically-controlled positioning apparatus; and
producing image recordings of parts or regions of the gas turbine via the image recording device.

12. The endoscopy system according to claim 2 ,
wherein the endoscopy system is configured to use:
the position and orientation of the endoscope in the gas turbine determined via the data processing device; and
the relative position of the endoscope and the gas turbine,

to position and orient the endoscope in the gas turbine in the defined position and orientation of the endoscope in the gas turbine via the electronically-controlled positioning apparatus.

Assignees

• Lufthansa Technik Ag

Inventors

• Mueller Wolf
• Thies Michael
• Hoerlyk Carsten

Classifications

• H04N23/60

  Control of cameras or camera modules · CPC title

• F01D21/003 Primary

  Arrangements for testing or measuring (for measuring vibrations G01H) · CPC title

• H04N5/232

  Electricity · mapped topic

• G06K9/00664

  Physics · mapped topic

• F05D2260/80

  Diagnostics · CPC title