B. Fuel Control (Ref. 49-32-00) The APU fuel control subsystem operates fully automatically. During APU operation, the FCU, which is governed by the ECB, meters the fuel dependent on the APU load condition. The flow divider distributes the fuel via both fuel manifolds to the fuel nozzles. During APU start-up/shut-down, the FCU increases/reduces the quantity of fuel delivered to the flow divider accordingly. During APU start, the flow divider routs fuel to the combustion chamber via the pilot fuel manifold only.
INTENTIONALLY BLANK
APU Fuel System - Component Location Figure 001 (SHEET 1)
R EFF : 106-106, 108-149, 211-299, 301-399, 49-30-00Page 4 Config-3 Aug 01/05
CES
APU Fuel System - Component Location Figure 001 (SHEET 2)
R EFF : 106-106, 108-149, 211-299, 301-399, 49-30-00Page 5 Config-3 Aug 01/05
CES ENGINE FUEL AND CONTROL - REMOVAL/INSTALLATION
______________________________________________ R **ON A/C 001-003, 051-099, 401-499,
TASK 49-30-00-040-001
APU LP Valve (14QM) - Deactivation (GTCP 36-300)
1. Reason for the Job
__________________
MMEL TASK: 49-30-02
Procedure is moved to ATA 28-29-00
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-29-00-040-002 APU LP VALVE (14QM) - Deactivation
28-29-00-440-002 APU LP VALVE (14QM) - Reactivation
3. Job Set-up
__________
Subtask 49-30-00-860-052
A. Not Applicable
4. Procedure
_________
Subtask 49-30-00-040-050
A. For the deactivation/reactivation of the APU LP Valve (Ref. TASK 28-29-00-040-002) and (Ref. TASK 28-29-00-440-002).
ENGINE FUEL AND CONTROL - REMOVAL/INSTALLATION
______________________________________________ TASK 49-30-00-040-003 APU LP Valve (14QM) - Deactivation (131-9(A))
1. Reason for the Job
__________________
MMEL TASK: 49-30-02
Procedure is moved to the TASK 28-29-00
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-29-00-040-002 APU LP VALVE (14QM) - Deactivation 28-29-00-440-002 APU LP VALVE (14QM) - Reactivation
3. Job Set-up
__________ Subtask 49-30-00-860-060
A. Not Applicable
4. Procedure
_________ Subtask 49-30-00-040-052
A. For the deactivation/reactivation of the APU LP Valve (Ref. TASK 28-29-00-040-002) and (Ref. TASK 28-29-00-440-002).
R EFF : 001-049, 101-105, 107-107, 151-199, 49-30-00Page 401 201-210, Config-2 Aug 01/05
CES
ENGINE FUEL AND CONTROL - REMOVAL/INSTALLATION
______________________________________________ TASK 49-30-00-040-002 APU LP Valve (14QM) - Deactivation (APS 3200)
1. Reason for the Job
__________________
MMEL TASK: 49-30-02
Procedure is moved to the TASK 28-29-00
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-29-00-040-002 APU LP VALVE (14QM) - Deactivation 28-29-00-440-002 APU LP VALVE (14QM) - Reactivation
3. Job Set-up
__________ Subtask 49-30-00-860-051
A. Not Applicable
4. Procedure
_________ Subtask 49-30-00-040-051
A. For the deactivation/reactivation of the APU LP Valve (Ref. TASK 28-29-00-040-002) and (Ref. TASK 28-29-00-440-002).
FUEL DISTRIBUTION - DESCRIPTION AND OPERATION
_____________________________________________
R **ON A/C 001-003, 051-099, 401-499,
1.
General
_______ Incoming fuel from the A/C APU fuel supply system is received by the FCU. The FCU diverts some of the fuel into a hydraulic circuit to operate the IGV-actuator. Returned fuel from the IGV-actuator is routed back into the FCU fuel inlet. The FCU also pressurizes and meters the fuel destined for APU operation. The fuel is ducted via a supply line to the FDDVA, which distributes the fuel, depending on APU operating conditions, to the primary and/or secondary fuel manifold. These deliver the fuel to the 6 dual-orifice fuel nozzles, located around the circumference of the combustion chamber. There the fuel is atomized. 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320飞机维护手册 AMM 机载辅助动力 AIRBORNE AUXILIARY POWER4(10)
