Method for checking the mechanical integrity of stabilizing elements on the rotor blades of a turbine and scanning device for implementing the method

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8844360
APP PUB NO 20120073375A1
SERIAL NO

13197828

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Abstract

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A method for checking a mechanical integrity of at least two stabilizing elements includes providing the at least two stabilizing elements that mechanically interconnect blade airfoils of rotor blades of a turbine in a circumferential direction of the turbine in an installed state of the turbine. The at least two stabilizing elements are adjacent to one another and inter-engage to form an engagement section having a material volume of the at least two stabilizing elements in the engagement section. The material volume of the at least two stabilizing elements is scanned, in an automated manner using ultrasound, so as to determine whether cracks are present. The scanning is performed from an outside of the at least two stabilizing elements.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
GENERAL ELECTRIC TECHNOLOGY GMBHBADEN, CH892

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Knowles, James Baden, CH 13 288
Maibach, Pascal Neuenhof, CH 1 1
Schott, Peter Trautskirchen, DE 3 4

Cited Art Landscape

Patent Info (Count) # Cites Year
 
GENERAL ELECTRIC COMPANY (6)
6857330 Apparatus and methods for automatically inspecting dovetails on turbine rotors 5 2002
* 7093491 Apparatus and methods for automated turbine component inspections 7 2004
* 7302851 Methods and apparatus for rotary machinery inspection 13 2006
* 2008/0245,151 Method and apparatus for in-situ inspection of rotary machine components 5 2007
* 2009/0229,365 Method of Analyzing Ultrasonic Inspection Data from Turbine Wheel Finger Dovetails to Identify the Presence of Cracks on the Finger Ledges 3 2008
* 2010/0150,726 ARTICLE AND ULTRASONIC INSPECTION METHOD AND SYSTEM THEREFOR 1 2008
 
WESTINGHOUSE ELECTRIC CORPORATION (1)
5670879 Nondestructive inspection device and method for monitoring defects inside a turbine engine 31 1993
 
New York Institute of Technology (1)
* 5275052 Tenon inspection systems and methods 18 1992
 
SOUTHWEST RESEARCH INSTITUTE (1)
* 4502331 Method for ultrasonic inspection of turbine disc rims 12 1983
 
GENERAL ELECTRIC TECHNOLOGY GMBH (3)
* 8347724 Low profile ultrasound inspection scanner 2 2009
2010/0135,775 TURBOMACHINE, ESPECIALLY STEAM TURBINE 2 2009
* 8376710 Airfoils with vibration damping system 1 2010
 
Scanmaster Systems (IRT) Ltd. (1)
* 5280723 Apparatus and method for data acquisition and processing 5 1990
 
SIEMENS AKTIENGESELLSCHAFT (2)
2004/0191,068 Moving-blade row for fluid-flow machines 7 2004
* 2008/0250,860 Method and Device for Determining Defects in a Turbine Blade 3 2005
 
SIEMENS ENERGY, INC. (3)
7075296 Inspection carriage for turbine blades 14 2004
2006/0283,250 Phased array ultrasonic testing system and methods of examination and modeling employing the same 5 2005
2009/0126,493 NONDESTRUCTIVE INSPECTION HEADS FOR COMPONENTS HAVING LIMITED SURROUNDING SPACE 5 2007
* Cited By Examiner

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