Dual air dryer with spin-on cartridges

Details Dual air dryer with spin-on cartridges Dual air dryer with spin-on cartridges

1999-04-12

2000-08-01

Gravini, Stephen

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

F26B 2106

Patent

active

060948361

ABSTRACT:
An air dryer having dual, spin-on canister assemblies. The unit also includes first and second valve bodies, each containing a moist air inlet valve, a dried air outlet valve and an exhaust and drain valve assembly. A single control valve assembly allows the exhaust valves to open in response to air pressure and close in the absence of pressure. The moist air inlet valves are responsive to high external air pressure for biasing the valves open. The dried air outlet valves have a small orifice therein to allow air to bleed therethrough when the valves are closed. The canisters each include inner and outer imperforate sleeves, and passages arranged such that incoming air passes between the sleeves, through the desiccant and out the dry air outlet valve. When the control valve shifts, the air flow is reversed and the desiccant is regenerated.

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patent: 5961698 (1999-10-01), Dossaji et al.
patent: 5983516 (1999-11-01), Trapp et al.

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