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. 09, 2017
Filed:
Nov. 05, 2013
Applicant:
Rolls-royce Plc, London, GB;
Inventor:
Colin Bird, Derby, GB;
Assignee:
ROLLS-ROYCE plc, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01D 11/00 (2006.01); F01D 11/02 (2006.01); F01D 17/08 (2006.01); F02C 7/28 (2006.01); G01M 3/26 (2006.01);
U.S. Cl.
CPC ...
G01M 3/26 (2013.01); F01D 11/00 (2013.01); F01D 11/02 (2013.01); F01D 11/025 (2013.01); F01D 17/08 (2013.01); F01D 17/085 (2013.01); F02C 7/28 (2013.01);
Abstract
A method of measuring a flow rate of a first fluid through a rotary seal of a gas turbine engine comprising controlling a probe flow of a second fluid at an intra-seal cavity and measuring a pressure change in the first fluid caused by the probe flow.