Definition
The section of a turbine engine where compressed air is mixed with fuel and ignited, producing the high-temperature, high-energy gas stream that drives the turbine. It sits between the compressor and the turbine section and operates at continuous, controlled combustion rather than the intermittent combustion of a piston engine.
Plain English
The part of a jet or turboprop engine where the fuel is actually burned. Compressed air comes in, fuel is sprayed in and lit, and the hot expanding gas rushes out the back to spin the turbine.
Context Anchor
Seen in turboprop engine descriptions, especially when learning the flow of air through the engine from intake, to compressor, to combustor, to turbine.
Derivation
From the Latin 'comburere', to burn up. The '-or' ending names the device that does the action, so 'combustor' literally means 'the thing that burns'. That is exactly its job in the engine.
Why Pilots Care
Combustor performance directly affects engine thrust, temperature limits, and the risk of flameout or turbine damage.
Analogy
A combustor is somewhat like the burner in a furnace: fuel and air are brought together and burned in one controlled place to create heat. In a turbine engine, that heat becomes fast-moving gas that drives the engine.
Intuition Check
A combustor is not a place where fuel explodes. It is where fuel burns in a steady, controlled flame inside the engine.
Example Sentence 1
Air leaving the compressor enters the combustor, where fuel is added and ignited to produce the hot gas that drives the turbine.
Example Sentence 2
The pilot monitors exhaust temperature to confirm the combustor is operating within limits.