COMBINED OIL AND WATER SEPARATOR IN AN AIR BRAKE DRYER

摘要

A filter assembly for separating and removing a liquid from a compressed fluid stream includes a filter element for separating the liquid from the fluid, a purge valve, and an elongated valve operator for actuating the purge valve. The top of the filter element has a shroud that decreases the flow area of the entering fluid stream to induce a vortex of the fluid, allowing the liquid to separate from the fluid. The purge valve is located at the bottom of the filter element for draining the separated liquid. The elongated valve operator axially extends through the filter element and is moveable by an actuating piston located at the top of the filter element, in response to elevated pressure in the filter assembly. The filtered air is dried through a desiccant body and then outputted from the filter assembly to be used in an air brake system.

主权项

1. A filter element for separating a liquid from a compressed fluid stream that flows into the filter element, the filter element comprising:
a longitudinally extending body of coalescing media having a first end and a second end distally opposite the first end; and a first end cap having a central body portion fixed to the first end of the body of coalescing media, and a shroud that extends longitudinally from the central body portion and has a radially outer annular surface that progressively increases in diameter from a first end of the shroud to a second end of the shroud in a direction toward the second end of the of body of coalescing media, wherein the shroud is configured to reduce a flow area of the fluid stream flowing into the filter element to induce a vortex of the fluid around the body of coalescing media, allowing the liquid to separate from the vortex.