Tip clearance control system

Details Tip clearance control system Tip clearance control system

2005-03-17

2008-12-16

Verdier, Christopher (Department: 3745)

Rotary kinetic fluid motors or pumps

Method of operation

C415S026000, C415S047000, C415S118000, C415S173100, C415S173200, C415S176000, C415S178000, C060S782000, C060S785000, C701S100000

Reexamination Certificate

active

07465145

ABSTRACT:
The invention is a method for controlling blade tip clearance in a turbine engine having a flowpath extending therethrough, and a system for carrying out the method. The method includes acquiring a first nonpulsating pressure signal PCrepresentative of tip clearance, sensing a second pressure PBsubstantially unaffected by tip clearance, forming an actual ratio of the acquired pressure and the sensed pressure, determining an error E having an actual component and a desired component, the actual component being a function of the actual ratio; and commanding a clearance control system to reduce the error.

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