Trunnion air seal

Details Trunnion air seal Trunnion air seal

F - Mech Eng,Light,Heat,Weapons

28

D

257/9

F28D 19/00 (2006.01) F28D 19/04 (2006.01)

Patent

CA 1168652

-8- TRUNNION AIR SEAL Abstract A trunnion sealing means for a rotary regenerative heat exchange apparatus. The sealing means is separated into two inde- pendent portions. The first portion is an air seal 34 that lies concentrically around a continuously moving trunnion 32. A supply of pressurized air is supplied thereto to preclude the leakage of fluid from the rotor of the rotary regenerative heat exchange appa- ratus. A second portion of said seal comprises a spool 56 radially spaced from the trunnion and having walls that are permitted to move relatively only an insignificant amount not sufficient to abrade or otherwise harm a packing material 36 therein.

406630

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