Gas separation: apparatus – Solid sorbent apparatus – With means regenerating solid sorbent
Patent
1997-05-02
1998-12-22
Woo, Jay H.
Gas separation: apparatus
Solid sorbent apparatus
With means regenerating solid sorbent
96147, 96151, 96152, B01D 5302
Patent
active
058512691
ABSTRACT:
A desiccant canister for an air braking system having dual internal air flow paths and means for avoiding localized compression of the molecular desiccant sieve. The present invention provides a spin-on canister having an inner shell spring-loaded into an outer shell. The inner shell contains the molecular desiccant sieve. To increase the internal flowpath without increasing the outer size of the canister, a baffle plate is provided within the inner shell to divide the molecular sieve into an outer annular chamber and inner core of roughly equivalent flow dimension. The air to be dried therefore is able to make one pass through one flow path and then another pass through another flow path. To avoid localized compression of the molecular sieve, the inner shell is spring loaded into the outer shell and cooperates with a sliding baffle plate to effect equilibrium. In the preferred embodiment, an elastomeric pad is provided within the inner shell to further distribute the force of the spring evenly throughout the molecular sieve.
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Baldwin Filters, Inc.
Pham Minh-Chau T.
Woo Jay H.
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