JET ENGINE STARTING AND JET ENGINE STARTING AND IGNITION SYSTEMIGNITION SYSTEM

GETTING A JET ENGINE GOING

The basic sequence of the start cycleThe basic sequence of the start cycle

Starter Starter MotorMotor

External External GearboxGearbox

JET ENGINE STARTING AND IGNITIONJET ENGINE STARTING AND IGNITION

Rolls-Royce AVON - Rolls-Royce AVON - (Graphic Representation)(Graphic Representation)

Starter Starter MotorMotor

Output Shaft

Clutch Mechanism

Reduction Gear

Turbine

Air Air InIn

Air Air OutOut

Air Air OutOut

Starter Starter MotorMotor

External External GearboxGearbox

JET ENGINE STARTING AND IGNITIONJET ENGINE STARTING AND IGNITION

Drive to Drive to Engine ShaftEngine Shaft

JET ENGINE STARTING AND IGNITIONJET ENGINE STARTING AND IGNITION

Surface Surface DischargeDischarge Air GapAir Gap

Connector Connector ThreadThread

Spanner Spanner FlatsFlats

Igniter Igniter Mounting Mounting

ThreadThread

Igniter TipIgniter Tip

InsulatorInsulator

Centre Centre ElectrodeElectrode

Semi Semi Conductor Conductor PelletPellet

Cooling Air Cooling Air Outlet HolesOutlet Holes

Cooling Air Cooling Air Inlet HolesInlet Holes

Igniter Box Igniter Box – (Not to Scale)– (Not to Scale)

High High Tension Tension OutputOutput

Low Low Tension Tension

InputInput

Control Control InputInput

Engine Cross SectionEngine Cross Section

Igniter Igniter PlugsPlugs

Igniter BoxesIgniter Boxes

HT LeadsHT Leads

Any Questions?Any Questions?