
US,
Patent
Jan.
12,
1982
Sheet4
0f7
4,389,917
#5
A/OUTPUT
{/6
GOVERNOR
I96
@7
A9"
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I
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PUT
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#9
ADVANCE
C
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OFF
VALVE
32/
RETU
6
DEMAND
VALVE
0
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232
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W5
I
304‘
.425
237
w
1ST.
RANGE
ADVANCE
-
CONTROL
VALVE
24/]
5%?
W
Z59
a
234’
COMPRESSOR
DISCHARGE
PRESSURE
/é@'
W
POWER
SiG.
SH
UTTLE
VALVE
7
MODULATOR
VALVE
457
w?
W
227
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267
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