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:
Jun. 13, 2000
Filed:
Apr. 21, 1998
Uy-Liem Nguyen, Baden-Dattwil, CH;
ABB Alstom Power (Switzerland) Ltd., Baden, CH;
Abstract
An arrangement and method for measuring a distance between rotating and stationary parts of a device, such as a turbine. The arrangement and method allow for the measurement of a distance between the tip of the rotating bodies arranged on a rotor of the turbine, and the inside of a casing that encloses the rotor. The arrangement and method provide for at least one abrasion-tolerant layer of a specified thickness arranged on the inside of the casing opposite the tip of the rotating body at a specified thickness. The at least one abrasion-tolerant layer includes at least one indicator that can be detected in the exhaust gas of the turbine, thereby providing indication of abrasion between the tip of the rotating body and the abrasion-tolerant layer.