[1][2] The location of the spark plug is also an important factor, since this is the starting point of the flame front (the leading edge of the burning gasses) which then travels downwards towards the piston.
In a continuous flow system, for example a jet engine combustor, the pressure is controlled and the combustion creates an increase in volume.
The combustion chamber in gas turbines and jet engines (including ramjets and scramjets) is called the combustor.
Different types of combustors exist, mainly:[3] If the gas velocity changes, thrust is produced, such as in the nozzle of a rocket engine.
[citation needed] However, in the context of a steam engine, the term "combustion chamber" has also been used for a specific area between the firebox and the boiler.
The use of this type of combustion chamber is large steam locomotive engines, allows the use of shorter firetubes.