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XAS96 DdG, DdG IT
C
OMPRESSOR
RV
FR
PG
OS
AR
AV
FN
DP
Fig. 2.3
AF
Air filter
AR
Air Receiver
AV
Air Outlet Valves
BDV Blow Down Valve
C
Coupling
CE
Compressor Element
CV
Check Valve
DP
Drain Plug
2.5
A
(
F
IR FLOW
SEE
The system comprises:
AF
Air filter
AR/OS
Air receiver/oil separator
CE
Compressor element
UA/UV
Unloader assembly with unloader valve
BDV
Blow-down valve
FN
Flow nozzle
Air drawn through the airfilter (AF) into the compressor element
(CE) is compressed. At the element outlet, compressed air and oil
pass into the air receiver/oil separator (AR/OS).
The check valve (CV) prevents blow-back of compressed air when
the compressor is stopped. In the air receiver/oil separator (AR/OS),
most of the oil is removed from the air/oil mixture; the remaining oil
is removed by the separator element.
12
R
EGULATING
SVa
SV
SL
BDV
CV
OF
FP
SL
OLG
E
Engine
F
Fan
FN
Flow Nozzle
FP
Filling Plug
FR
Flow Restrictor
OC
Oil Cooler
OF
Oil Filter
OLG
Oil Level Gauge
. 2.3)
IG
S
YSTEM
VI
C
UA
UV
VH
CE
TS
DP
OS
Oil Separator
PG
Pressure Gauge
RV
Regulating Valve
SL
Scavenge Line
SR
Speed Regulator
SV
Safety Valve
SVa
Solenoid valve
(generator action)
The oil collects in the receiver and on the bottom of the separator
element.
The air leaves the receiver via a flow nozzle (FN) which prevents the
receiver pressure from dropping below the minimum working
pressure (specified in section 9.3), even when the air outlet valves are
open. This ensures adequate oil injection and prevents oil
consumption.
A temperature switch (TS) and a working pressure gauge (PG) are
comprised in the system.
A blow-down valve (BDV) is fitted in the unloader assembly to
automatically depressurise the air receiver (AR) when the compressor
is stopped.
AF
VV
E
OC
SR
F
TS
Temperature Switch
UA
Unloader Assembly
UV
Unloader Valve
VH
Vent Hole
VI
Vacuum Indicator
VV
Vacuator Valve
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