Research/Patents/US 5660524
US 5660524

AIRFOIL BLADE HAVING A SERPENTINE COOLING CIRCUIT AND IMPINGEMENT COOLING

Assignee

GENERAL ELECTRIC COMPANY A NY CORP.

Filed

Jul 13, 1992

Granted

Aug 26, 1997

Location

CINCINNATI OH US

Abstract

An airfoil blade, such as a jet engine turbine rotor blade. An internal serpentine coolant circuit has a last downstream passageway bounded by four monolithic inner walls which are monolithic with at least a portion of the outer walls. Two of the inner walls are spaced from the outer walls and contain air impingement orifices creating two impingement chambers. Some coolant in the serpentine circuit exits the airfoil blade through a coolant exit in the blade tip. The remaining coolant in the circuit passes through the impingement orifices and exits the blade through film cooling holes in the outer walls.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

Aug 4, 1993

Rescinded

Apr 9, 1997

Duration

3 years, 8 months

Inventor

  • 1CHING-PANG LEE

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