Research/Patents/US 5601402
US 5601402

TURBO MACHINE SHROUD-T0-ROTOR BLADE DYNAMIC CLEARANCE CONTROL

Assignee

Filed

Jun 6, 1986

Granted

Feb 11, 1997

Location

LAWRENCEBURG IN US

Abstract

A clearance control arrangement for the rotor blade-to-stator shroud clearance in an aircraft engine or other turbo machine. The disclosed arrangements use large area piston-like structures located circumferential to the turbo machine and capable of operation from pressures developed within the machine. One disclosed arrangement incorporates static adjustment capability that can be disposed to provide symmetrical or asymmetrical clearances. The disclosed clearance control can be used as a fast-acting supplement or in lieu of other clearance control arrangements and is arranged to be actuated upon sensing the onset of rotor-to-stator collision pinch point conditions in the turbo machine.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Aug 8, 1986

Rescinded

Nov 8, 1993

Duration

7 years, 3 months

Inventor

  • 1THOMAS G. WAKEMAN

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Back to patent indexSource: USPTO 35 USC §181 secrecy order records