James E Whitfield

40264556, May 31, 1977

Feb 10, 1975

5/548509

George J. Huebner - Bloomfield Hills MI
James H. Whitfield - Royal Oak MI

Chrysler Corporation - Highland Park MI

B21D 5302

228118

A rotatable drum type regenerator for an automobile gas turbine engine is manufactured from a steel matrix and rim of thin stock connected in radial sliding and sealing relationship at the hot axis end region to accommodate thermal cycling and to prevent rupture between the rim and matrix, and positively connected by brazing at the cooler axial end region to withstand the various forces therebetween.

39571068, May 18, 1976

Oct 15, 1974

5/514522

James Harold Whitfield - Royal Oak MI

Chrysler Corporation - Highland Park MI

F23L 1502
F02C 710

165 9

Fixed seal means partition a disc type rotary regenerator for an automotive gas turbine engine into an inlet air heating section for conducting cool high pressure inlet air therethrough in one axial direction and an exhaust cooling section for conducting hot low pressure exhaust gas therethrough in the opposite axial direction. The seal means comprises a non-rotatable rubbing seal having an inner surface in sliding sealing engagement with an axial end surface of the regenerator and also comprises a channel shaped non-rotatable static seal having one channel side in sliding sealing engagement with a movement limiting stop fixed with respect to an outer surface of the rubbing seal at the low pressure side thereof and having a second channel side in sliding sealing engagement with a fixed housing portion of the engine. The channel sides of the static seal are spaced by a channel mouth opening toward the high pressure side of the seal, whereby the pressure differential across the seal urges the rubbing seal and the channel sides of the static seal into their aforesaid sliding sealing engagements. The movement limiting stop limits the movement of the static seal in the direction toward the low pressure side of the seal and cooperates with conventional pressure balancing grooves in said inner surface of the rubbing seal to effect a predetermined accurately controlled light pressure induced clamping force urging the rubbing seal into its sliding sealing engagement with the aforesaid axial end surface of the regenerator.