Rotor post seal

Details Rotor post seal Rotor post seal

1975-06-02

1976-09-14

Davis, Jr., Albert W.

Heat exchange

Regenerator

Checker brick structure

277 56, 277 58, 277 85, F28D 1900

Patent

active

039801284

ABSTRACT:
A sealing arrangement for a rotary regenerative air preheater that precludes the leakage of gas or air through the clearance space between a cylindrical rotor shaft and an end plate of a relatively fixed surrounding housing structure. The sealing arrangement includes an annular flange concentrically fixed at one end to the rotor shaft and adapted to extend into spaced relation with the housing structure to provide a clearance space therebetween. The clearance space is adapted to carry a plurality of discrete bands of packing material with a pressurized air seal therebetween to resist the flow of fluid therethrough, while the annular flange is subjected to wear and attrition that would otherwise be imposed upon the rotor post.

REFERENCES:
patent: 945180 (1910-01-01), Ljungstrom
patent: 2666624 (1954-01-01), Flurschutz
patent: 3822739 (1974-07-01), Kurschner

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