| 摘要 |
The herein disclosed IC engine relies on air injection for ignition instead of Otto cycle spark or Diesel cycle fuel injection. One or more adjacent cylinders are connected by a valve, which is opened near the end of their compression strokes so that high-pressure air can inject into the cylinder containing the air fuel mixture, and induce detonation ignition at top dead center. During expansion the cylinder-connecting valve remains open and provides equal pressure on both cylinders, which is substantially higher than possible in Otto cycle. Constant volume heat addition makes this engine also more efficient than Diesel cycle. The absence of spark ignition or high pressure fuel injectors make this engine more economical, more reliable, and scalable down to very small size unlike Diesel fuel injectors which cannot meter small quantities and eliminate the Diesel cold starting problem. Engine can serve as reactor for generating high temperature hydrogen to power high temperature fuel cells.
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