BENDIX AD-9si Service Data - Seite 4

Blättern Sie online oder laden Sie pdf Service Data für Luftentfeuchter BENDIX AD-9si herunter. BENDIX AD-9si 16 Seiten. Oil coalescing air dryer

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Compressor

Coalescing

Control

Port

Turbo

Cut-Off

Valve

(open)

Supply

Port

Safety

Valve

Purge

Valve

Figure 2 – Bendix

AD-9si

CHARGE CYCLE

(Refer to Figures 2 & 4)

When the compressor is running loaded (compressing air),

compressed air flows through the compressor discharge

line to the inlet (IN 1) port of the air dryer body. The

compressed air often includes contaminates such as oil,

oil vapor, water, and water vapor.

Traveling through the discharge line and into the air dryer,

the temperature of the compressed air falls, causing

some of the contaminants to condense and drop to the

bottom of the air dryer and purge valve assembly. These

contaminants are ready to be expelled at the next purge

cycle. The air then flows through the inlet tube and into

the desiccant cartridge, where it flows through an oil

separator – or coalescing filter if equipped with a Bendix

PuraGuard

oil coalescing cartridge – which removes water

in liquid form, as well as liquid oil and solid contaminants.

Oil

Filter

Line

Exhaust

Air Dryer with a Governor — Charge Cycle

Desiccant

Bed

Purge

Orifice

Purge Air

Delivery

Governor

Air then flows into the desiccant drying bed and becomes

progressively more dry as water vapor adheres to the

desiccant material in a process known as adsorption.

Dry air exits the desiccant cartridge, through the outlet tube,

then flows to the delivery check valve. Some air exiting

the desiccant cartridge is diverted through the orifice into

the purge volume area. The delivery check valve opens,

supplying air to the two delivery ports. The purge reservoir

fills, storing air that will be used to regenerate the desiccant

during the purge cycle.

The air dryer will remain in the charge cycle until the air

brake system pressure builds to the governor cut-out

setting of approximately 130 psi.

Extended

Purge

Port

Reservoir

Check

Valve

Front

Reservoir

Delivery Port

Rear