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:
Feb. 20, 2018
Filed:
Nov. 04, 2014
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Alan Richard Jones, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01B 7/15 (2006.01); G01B 11/14 (2006.01); G01B 7/00 (2006.01); F01D 21/00 (2006.01); G01B 11/00 (2006.01); F01D 11/20 (2006.01); F01D 17/02 (2006.01); G01H 1/00 (2006.01);
U.S. Cl.
CPC ...
G01B 7/003 (2013.01); F01D 11/20 (2013.01); F01D 17/02 (2013.01); F01D 21/003 (2013.01); G01B 11/002 (2013.01); G01H 1/006 (2013.01);
Abstract
An edge detector is provided for determining the axial position of the leading or trailing edge of a rotating blade within rotating machinery. The edge detector includes a set of axially spaced tip detection probes locatable within a casing of the machinery. Each probe is arranged to detect whether or not the blade tip passes over that probe. The edge detector determines the axial position of the edge of the blade as the position of the boundary between those tip detection probes which detect passage of the blade tip thereover and those tip detection probes which detect no passage of the blade tip thereover.