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.

Date of Patent:
Nov. 06, 2018

Filed:

Oct. 04, 2017
Applicant:

Pratt & Whitney Canada Corp., Longueuil, CA;

Inventors:

Vincent Paradis, Longueuil, CA;

Remy Synnott, St-Jean-sur-Richelieu, CA;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01F 1/42 (2006.01); F02C 7/18 (2006.01); F02C 9/18 (2006.01); F01D 5/08 (2006.01); F15D 1/02 (2006.01);
U.S. Cl.
CPC ...
F02C 7/18 (2013.01); F01D 5/085 (2013.01); F02C 9/18 (2013.01); H05K 999/99 (2013.01); F15D 1/025 (2013.01);
Abstract

A gas turbine engine comprises a shaft assembly including a hollow shaft of the gas turbine engine and a plug connected to the inlet end of the shaft. The hollow shaft has a shaft bore having a bore diameter. The hollow shaft has an inlet end for receiving a first portion of an incoming air flow. The plug has a plug bore therethrough, and an inlet end having an inlet diameter. The inlet diameter of the plug is smaller than the bore diameter. The plug includes a deflection surface adapted to deflect a second portion of the incoming air flow away from the shaft bore. A plug for connecting to an end of a hollow shaft of a gas turbine engine and s method of controlling a flow of fluid through a shaft having a bore therethrough of a gas turbine engine are also presented.


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