with some storage so typical startup will not require any air compression to occur first the klengine could be rotated by a much smaller starter motor so a simply smaller version of a starter motor can be used alternatively the kle can be started by air stored pressure if electronic valve control is available the engine can be started by cycling the air input valves force pistons to a starting position and pressurize a power cylinder fuel injection and ignition can begin immediately after the kle can start faster than 4 stroke or bl engines because it has no compression cylinders to oppose starting rotation compression load can be delayed till engine is running for the same reason minimum idle speed should be much lower just enough to overcome mechanical friction and smaller continuous compression load controlling engine power given the engine stores energy both engine types will store energy in the form of compressed air and heat in the thermal pressure multiplier system simply reducing fuel to zero may allow the engine to continue running producing significant but diminishing power for several seconds to tens of seconds depending on the compressed air volume of the tpm several alternatives exist to keep the engine from producing unwanted drive power immediately after the driver signals via accelerator pedal to stop one would be to divert the engine output into stored electricity as in a hybrid another is to halt valve cycling leaving exhaust valves and intake valves of bl engine open the engine and crankshaft can then freewheel due to momentum and may even.