Figure 6-19 shows a typical spark igniter.
ACCESSORY
SECTION.—The
accessory
section of the gas turbine engine is usually mounted
beneath the compressor section. This section contains
an accessory drive gearbox, a housing (case), and
provisions for mounting the engine-driven accessories
(constant speed drive transmission, fuel and oil pumps,
and electrical and tachometer generators, etc.). In gas
turbine engines with air turbine starters, the starter is
mounted on the forward face of the accessory gearbox.
The accessory gearbox also includes many of the gas
turbine
engine's
internal
lubrication
system
components.
Q6-1.
What are the four types of jet propulsion
engines?
Q6-2.
Describe the basic operating principle for all
jet engines.
Q6-3.
The law that states "for every acting force
there is an equal and opposite reacting force"
describes how air escaping from the rear of a
balloon propels the balloon in the opposite
direction. What law does this illustrate?
Q6-4.
What is the simplest power plant that uses
atmospheric air to support combustion?
Q6-5.
What jet engine doesn't have either a
compressor or a turbine and can't take off
under its own power?
Q6-6.
What are the four types of gas turbine
engines?
Q6-7.
What are the five major components of a
turbojet?
Q6-8.
What are the three major assemblies of the
turboprop engine?
Q6-9.
Turboshaft engines are normally found on
what type of aircraft?
6-15
Figure 6-19.—Spark igniter.
