F - Mech Eng,Light,Heat,Weapons – 28 – D
Patent
F - Mech Eng,Light,Heat,Weapons
28
D
F28D 19/00 (2006.01) F28D 17/02 (2006.01)
Patent
CA 2053809
ABSTRACT OF THE DISCLOSURE A sealing arrangement for a regenerative air heater having a stator with a peripheral flange and hot and cold end hoods mounted for rotation over respective opposite surfaces of the stator, includes a seal frame which is connected to the cold end hood over an expan- sion joint assembly. A plurality of cast iron seal shoes are connected to the frame and positioned at selected gaps from the stator flange. A wheel rotatably mounted to the frame near each seal shoe rolls against the stator flange to maintain the selected gap while a counter weight on a lever acts to urge the seal shoes toward the flange. The arrangement is automatic in its maintenance of the selected gap.
Babcock & Wilcox Company The
Ridout & Maybee Llp
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