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Vol. 1 04--00--1 REV 56, Jan 31/03 AUXILIARY POWER UNIT Table of Contents Flight Crew Operating Manual CSP A--013 MASTER CHAPTER 4 --AUXILIARY POWER UNIT Page TABLE OF CONTENTS 04--00 Table of Contents 04--00--1 INTRODUCTION 04--10 Introduction 04--10--1 POWER PLANT 04--20 APU Power Plant 04--20--1 Engine 04--20--1 Gearbox 04--20--1 SYSTEMS 04--30 Systems 04--30--1 Lubrication 04--30--1 Fuel 04--30--1 Ignition and Starting 04--30--1 Air Intake 04--30--1 CONTROL 04--40 Control 04--40--1 Starting 04--40--1 Stopping 04--40--2 Protective Shutdown 04--40--9 System Circuit Breakers 04--40--10 LIST OF ILLUSTRATIONS INTRODUCTION Figure 04--10--1 Auxiliary Power Unit Installation 04--10--2 Figure 04--10--2 Auxiliary Power Unit Pneumatic Flow 04--10--3 Figure 04--10--3 Auxiliary Power Unit Indication 04--10--4 SYSTEMS Figure 04--30--1 Auxiliary Power Unit Controls and ECU Interface 04--30--2 Figure 04--30--2 Auxiliary Power Unit Door Position Chart 04--30--3 CONTROL Figure 04--40--1 Start/Stop Run Controls 04--40--3 Figure 04--40--2 Fuel Synoptic Page 04--40--4 REV 56, Jan 31/03 Vol. 1 04--00--2 AUXILIARY POWER UNIT Table of Contents Flight Crew Operating Manual MASTER CSP A--013 Figure 04--40--3 APU Door and Run Indication 04--40--5 Figure 04--40--4 APU EICAS Messages -- Primary Page 04--40--6 Figure 04--40--5 APU EICAS Messages -- Status 04--40--7 Figure 04--40--6 APU Start Sequence 04--40--8 Vol. 1 04--10--1 REV 56, Jan 31/03 AUXILIARY POWER UNIT Introduction Flight Crew Operating Manual CSP A--013 MASTER 1. INTRODUCTION The auxiliary power unit (APU) is installed within a fireproof titanium enclosure in the aft equipment compartment. The APU is a fully automated gas turbine power plant which drives an electrical generator. The generator is rated at 30 kVA and produces 115 VAC electrical power for backup to the main engine generators (refer to Chapter 7). The APU also supplies compressed air to the pneumatic system for main engine starting and environmental control (refer to Chapter 19). The maximum operating altitude of the APU is 37,000 feet. The maximum altitude for APU starting is 30,000 feet. The maximum altitude for main engine starting using APU bleed air is 13,000 feet. ECS operation using APU bleed air is 15,000 feet. An Electronic Control Unit (ECU), located in the aft equipment compartment, controls the APU through all phases of operation. The ECU monitors all sensors and switches, sets up the appropriate fuel acceleration schedules and relays specific operating data to the engine indication and crew alerting system (EICAS). The ECU is powered through selection of a PWR/FUEL switchlight on the APU control panel in the flight compartment. The APU intake door position is continuously shown on the EICAS status page. APU RPM and exhaust gas temperature (EGT) indications are shown on the EICAS status page, only when the APU PWR/FUEL switchlight on the APU control panel is selected. REV 56, Jan 31/03 Vol. 1 04--10--2 AUXILIARY POWER UNIT Introduction Flight Crew Operating Manual MASTER CSP A--013 Auxiliary Power Unit Installation Figure 04---10---1 APU INTAKE BLEED AIR DUCT APU ENCLOSURE SERVICE DOOR SUPPORT SKID CUT--OFF SWITCH ECU COOLING AIR INLET ENGINE FIRE EXTINGUISHER STARTER GENERATOR FUEL MODULE LOAD CONTROL VALVE EXHAUST PIPE ASSEMBLY OIL COOLER OIL MODULE COOLING AIR EXHAUST Vol. 1 04--10--3 REV 56, Jan 31/03 AUXILIARY POWER UNIT Introduction Flight Crew Operating Manual CSP A--013 MASTER Auxiliary Power Unit Pneumatic Flow Figure 04---10---2 APU RIGHT 10TH STAGE BLEED SHUTOFF VALVE LEFT PACK SHUTOFF VALVE CHECK VALVE LEFT 10TH STAGE BLEED SHUTOFF VALVE CHECK VALVE CHECK VALVE AIR TURBINE STARTER LEFT ENGINE ISOLATION VALVE RIGHT PACK SHUTOFF VALVE AIR TURBINE STARTER STARTER CONTROL VALVE RIGHT ENGINE LOAD CONTROL APU VALVE 100 150 200 250 300 350 0 5 10 15 20 25 30 35 40 45 335 Kt .80 M .85 M 330 Kt REV 56, Jan 31/03 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：Bombardier_CRJ_00-Auxiliary_Power_Unit
