| 摘要 |
The two-stroke engine has a piston mounted in a cylinder having a full diameter bore throughout its major length and a reduced diameter upper bore portion. The piston has the same configuration and in its upward compression stroke, air and finely-divided water droplets are admitted into an annular space formed between the piston's reduced diameter and the cylinder's full diameter. Flow of the air water mixture through an exhaust valve cools the motor. At TDC (top dead center) the upper surfaces of the piston and the cylinder mutually form a relatively small spheroidal combustion chamber. Differing compression ratios in the annular and the spheroidal chamber cause the air-water mixture to rush into the spheroid in a swirling motion to intimately mix with injected fuel. Ignition produces a complete burning. End gases or the like are burnt in the cooler annular space to avoid detonation. The fuel injection is in measured increments determined by the temperature and pressure of the water mixture. The water supply also is metered responsively both to the engine temperature and the fuel demands. To increase engine output, an operator varies the amount and pressure of the air supply by varying the eccentricity of an eccentric vane blower. A special high pressure injection system is provided for improving both safety and performance.
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