Support for thermally expanding conical heatshield
摘要
The front end of a conical forward carbon-carbon heatshield is attached to carbon-carbon nose tip by a threaded connection. The nose tip provides rigid structural support for the small end of the heatshield at all conditions of thermal expansion. The joint between the aft end of the forward heatshield and the forward end of an aft carbon-phenolic heatshield includes a tolerance gap which is tapered to accommodate the vector movement of the carbon-carbon heatshield due to axial and circumferential thermal expansion. The gap is filled with a high temperature insulating washer of frangible material which is crushed by the axial expansion of the forward heatshield and evacuated by the slip-stream. The forward heatshield is supported at the joint by a segmented ring of high density carbon wedges that will expand during flight and move with the heatshield along an expansion ramp to provide continuous support.
申请公布号
US4702439(A)
申请公布日期
1987.10.27
申请号
US19870005971
申请日期
1987.01.20
申请人
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE NAVY
发明人
KELLEY, ANTHONY D.;FINLEY, JAMES W.;EACHUS, VERNON F.;LIM, RICHARD A.;YANO, MILES K.