The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2012
Filed:
Jun. 26, 2007
Emad Andarawis Andarawis, Ballston Lake, NY (US);
William Lee Herron, Cincinnati, OH (US);
Samhita Dasgupta, Niskayuna, NY (US);
John Harry Down, Lanesboro, MA (US);
Mahadevan Balasubramaniam, Ballston Lake, NY (US);
David SO Keung Chan, Niskayuna, NY (US);
David Walter Parry, Cincinnati, OH (US);
Emad Andarawis Andarawis, Ballston Lake, NY (US);
William Lee Herron, Cincinnati, OH (US);
Samhita Dasgupta, Niskayuna, NY (US);
John Harry Down, Lanesboro, MA (US);
Mahadevan Balasubramaniam, Ballston Lake, NY (US);
David So Keung Chan, Niskayuna, NY (US);
David Walter Parry, Cincinnati, OH (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A method of detecting rubs during operation of a turbomachine comprising at least one rotating object having a tip and a shelf is provided. The method includes generating signals representative of a sensed parameter and processing the signals to generate height versus time data for the tip. The height of the tip corresponds to the distance between the tip and the shelf. The method further includes monitoring the height versus time data, in order to determine whether a change in the height data exceeds a threshold value, and detecting a rub of the rotating object(s) on a second object, when the change in the height data exceeds the threshold value. A rub detection system for a turbomachine and a turbine engine system with rub detection are also provided.