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The pneumatic system supplies high-pressure air for :
- air conditioning
- engine starting
- wing anti-icing
- water pressurization
- hydraulic reservoir pressurization
High-pressure air has three sources :
- engine bleed systems
- APU load compressor
- HP ground connection
A crossbleed duct interconnects the engine bleed systems and receives air from the APU
and ground sources when appropriate.
A valve mounted on the crossbleed duct allows the left side (engine 1) and right side
(engine 2) to be interconnected.
Two Bleed Monitoring Computers (BMC1 and BMC2), the overhead
ECAM control and monitor the operation of the pneumatic system
A leak detection system detects any overheating in the vicinity of
control panel, and the
hot air ducts
CCM ALL
┏━━━━━━━━━━━━━━━━┳━━━━━━━━━━━━━━┳━━━━━━━━━━━┓
┃                                ┃                            ┃1.36.10     P 2       ┃
┃                                ┃                            ┣━━━━━┳━━━━━┫
┃I  -~ A318                      ┃I          PNEUDESCRIPTION  ┃SEQ 001 1 ┃I REV 23  ┃
┃  .,,,.8, ,, ~L,~ A319          ┃                            ┃          ┃          ┃
┃ Lli,~ A320                     ┃                            ┃          ┃          ┃
┃      A~7-~'M" A321             ┃                            ┃          ┃          ┃
┃   FLIGHT CREW OPERATING MANUAL ┃                            ┃          ┃          ┃
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GENERAL
The aircraft has two similar engine bleed air systems.
Each system is designed to :
- select the compressor stage to use as a source of air
- regulate the bleed air temperature
- regulate the bleed air pressure.
A Bleed Monitoring Computer (BMC) controls and monitors each system.
Each BMC receives information about bleed pressure and temperature and valve position.
Each is connected with :
- other systems using air or information from the bleed system
- the other BMC.
Each supplies indications and warnings to the ECAM and CFDS.
If one BMC fails, the other one takes over most of the monitoring functions.
Each bleed valve is pneumatically operated and controlled electrically by its associated
BMC.
CCM ALL
┏━━━━━━━━━━━━━━━━┳━━━━━━┳━━━━━━━━━┓
┃I  -~ A318                      ┃PNEUMATIC   ┃1.36.10     P 3   ┃
┃  .-,,.8, ,, ~L,~ A319          ┃            ┃                  ┃
　
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本文鏈接地址：AIRBUS A320 Flight Crew Operating Manual5(12)