PURPOSE: To prevent cavitation from being generated, and also to restrain the mechanical loss by compressing combustible premixed mixture or gaseous oxidizing agent, forming combustible gas through a process of injecting fuel when there is only gaseous oxidizing agent in a cylinder, and then igniting the gas.
CONSTITUTION: Water or incombustible noncompressible fluid 6 is allowed to flow into a cylinder 5 by opening of a valve 1, and premixed mixture or gaseous oxidizing agent 10 in the cylinder 5, adjusted by a carburetor 9 through a float 15 is compressed. The float 15 restrains heat transfer to water or incombustible noncompressible fluid 6 in the compressing process and prevents a spark plug 4 from being wetted with water. When there is only gaseous oxidizing agent 10 in the cylinder 5, fuel is infected by a fuel injection valve, combustible gas is formed, the gas is ignited by the spark plug 4 or self-ignited, and exploded, and water or incombustible noncompressible fluid 6 is injected by explosive force, so as to generate high pressure.
INADA MITSURU
MIYAGAWA KAZUYOSHI
NAKAMURA HIROKI
NISHIDA HIROYUKI
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