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┃ Lli,~ A320                     ┃            ┃                  ┃
┃                                ┃            ┣━━━━┳━━━━┫
┃      A~7-~'M" A321             ┃DESCRIPTION ┃SEQ 001 ┃REV 23  ┃
┃   FLIGHT CREW OPERATING MANUAL ┃            ┃        ┃        ┃
┗━━━━━━━━━━━━━━━━┻━━━━━━┻━━━━┻━━━━┛
CCM ALL
┏━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━┓
┃                                ┃                            ┃1.36.10     P 4       ┃
┃                                ┃                            ┣━━━━━┳━━━━━┫
┃I  ~-~ A318                     ┃I          PNEUDESCRIPTION  ┃SEQ 050 1 ┃I REV 24  ┃
┃ aw aw ,, ~L,~ A319             ┃                            ┃          ┃          ┃
┃ Lli,~ A320                     ┃                            ┃          ┃          ┃
┃      A~7-~'M" A321             ┃                            ┃          ┃          ┃
┃   FLIGHT CREW OPERATING MANUAL ┃                            ┃          ┃          ┃
┗━━━━━━━━━━━━━━━━┻━━━━━━━━━━━━━━┻━━━━━┻━━━━━┛
AIR BLEED SELECTION
Air is normally bled from the intermediate pressure stage (IP) of engine's high-pressure (HP)
compressor to minimize fuel penalty.
At low engine speed, when the pressure and temperature of the IP air are too low, the
system bleeds air from the HP stage and maintains it at 36 _+ 4 psi.
An intermediate pressure check valve downstream of the IP port closes to prevent air from
the HP stage from being circulated to the IP stage.
The HP valve closes automatically
- pneumatically
  ~ in case of low upstream pressure
  ~ in case of excessive upstream pressure
- electrically :
when the bleed valve is closed electrically
in case of overpressure upstream of the HP valve with wing anti-ice off, two packs on
and aircraft altitude above 15000 feet~
ECAM INDICATION
CCM ALL
┏━━━━━━━━━━━━━━━━┳━━━━━━┳━━━━━━━━━┓
┃I  -~ A318                      ┃PNEUMATIC   ┃1.36.10     P 5   ┃
　
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本文鏈接地址：AIRBUS A320 Flight Crew Operating Manual5(13)