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Gluhareff Pressure Jet
The Gluhareff Pressure Jet (or tip jet) is a type of jet engine that, like a valveless pulse jet, has no moving parts. It was invented by Eugene Michael Gluhareff, a Russian engineer who envisioned it as a power plant for personal helicopters and compact aircraft such as Microlights.
==How it works==
Having no moving parts, the engine works by having a coiled pipe in the combustion chamber that superheats the fuel (propane) before being injected into the air-fuel inlet. In the combustion chamber, the fuel/air mixture ignites and burns, creating thrust as it leaves through the exhaust pipe. Induction and compression of the fuel/air mixture is done both by the pressure of propane as its injected, along with the sound waves created by combustion acting on the intake stacks.〔(【引用サイトリンク】title=US Patent#: US3093962A )〕
The engine has three intake stages, which are sized according to the sound created by the combustion process when running. This has exactly the same effect as the turbine and compressor in a turbojet, creating a vacuum that sucks in air. The intakes, along with the exhaust, are sonically tuned so that the locations of the pressure antinodes of the Mach disks in the propane stream match the locations of the intake apertures. Thus atmospheric pressure augments air intake as much as possible. Early prototypes produced very small amounts of thrust, before Gluharev developed it from early experiments on producing thrust from using the pressurized fuel's kinetic energy to suck in the air and compress it prior to combustion.〔(【引用サイトリンク】title=Gluhareff Pressure Jet Engine )〕
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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