Ignition is accomplished during the starting cycle. The
igniter plug is located in the combustion liner adjacent to the start
fuel nozzle. The Army cantype engine employs a single cantype
combustor.
c. Canannular combustion chamber. This combustion chamber
uses characteristics of both annular and cantype combustion
chambers. The canannular combustion chamber consists of an outer
shell, with a number of individual cylindrical liners mounted about
the engine axis as shown in figure 1.20. The combustion chambers are
completely surrounded by the airflow that enters the liners through
various holes and louvers. This air is mixed with fuel which has
been sprayed under pressure from the fuel nozzles. The fuelair
mixture is ignited by igniter plugs, and the flame is then carried
through the crossover tubes to the remaining liners. The inner
casing assembly is both a support and a heat shield; also, oil lines
run through it.
Figure 1.20. CanAnnular Combustion Chamber.
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