Parkhurst & Oliff
Rotary regenerator type ceramic heat exchanger
 The disclosed ceramic heat exchanger has a stress relief layer disposed in the proximity of joint between a hollow hub and a honeycomb structural body integrally joined to the outer circumference of the hub, the stress relief layer having the difference in thermal expansion of not greater than 0.1% at 800.degree. C. relative to the hub. 
NGK Insulators, Ltd.
F F Y
F28D F28F Y10S
inventional inventional additional
Kiminari Tadaaki
Kato Matsuhisa