Rotary kinetic fluid motors or pumps – With control means responsive to non-cyclic condition... – Casing – runner – or shaft position or extent of motion...
Reexamination Certificate
2007-05-22
2007-05-22
Edgar, Richard A. (Department: 3745)
Rotary kinetic fluid motors or pumps
With control means responsive to non-cyclic condition...
Casing, runner, or shaft position or extent of motion...
C415S173200, C415S173300, C415S213100
Reexamination Certificate
active
11294859
ABSTRACT:
A gas turbine apparatus includes a compressor and/or a turbine, having rotor blades mounted on a rotor that is rotatable relative to a stationary housing, with a clearance gap between the rotor blades and the housing. During operation, external forces tend to deform the housing and the clearance gap. At least two actuators are arranged circumferentially offset from one another about the circumference of the housing. Each actuator is coupled to the housing and adapted to apply onto the housing a rotational moment about a torque axis that is at least approximately parallel to the housing axis. Based on the signal of a sensor that senses the deformation, a regulating unit actuates the actuators so as to counteract or compensate any deformations of the housing that arise during operation of the apparatus.
REFERENCES:
patent: 4343592 (1982-08-01), May
Edgar Richard A.
Fasse W. F.
Fasse W. G.
MTU Aero Engines GmbH
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