The power source is the expansion of the working fluid in turn producing thrust.
The term "Internal combustion" means the burning, or combustion of the fuel/air is detonated in an enclosed cylinder under compression, driving piston down. If the combustion was external, there would simply be an explosion in the air that produces no power.
Steam turbines are external combustion engines.
A steam engine is an external combustion engine.
In an Internal Combustion Engine, the Fuel is burnt in the cylinder or vessel eg. Diesel or Petrol engine used in Cars.Gasoline engines, Wankel engines, diesels, gas turbines are all examples of internal combustion.In an External Combustion Engine, the internal working fuel is not burnt. Here the fluid is being heated from an external source. The fuel is heated and expanded through the internal mechanism of the engine resulting in work. eg. Steam Turbine, Steam engine Trains.
an internal combustion engine means the source for ignition burns internally so the power gets soon without any loss. an external combustion means the source of ignition was outside so there was loss so less efficiency. an internal combustion engine means the source for ignition burns internally so the power gets soon without any loss. an external combustion means the source of ignition was outside so there was loss so less efficiency.
It's an external power source which allows techs to power instruments and other flight systems without having to fire up the aircraft engines.
battery
Generator and the batteries it charges.
Internal combustion gasoline or diesel engines power cars. Cars are also powered by electric motors.
There is no difference. Both are internal combustion engines. I think I know what you're asking though. A gasoline engine uses spark ignition and a diesel engine uses compression ignition. The gasoline engine needs an spark or other heat source to ignite the fuel air mixture in the cylinders. The diesel engine ignites the fuel air mixture by compressing it in the cylinders until it combust's from the heat produced when the cylinder's volume is decreased. In an external combustion engine, the working fluid is heated by burning fuel, then introduced into the expansion chamber to produce power e.g. a steam engine.
Steam engine: external combustion (the fuel is burnt in the boiler and the steam led through pipes etc to the power cylinder(s). Diesel (and petrol and gas): internal combustion - the fuel is burnt in the cylinder. Otherwise they are all Heat Engines.
Internal-combustion engine