| 摘要 |
An internal combustion engine comprises a compression and expansion casing having an operating member adapted to cause volumetric compression of fuel mixture and volumetric expansion of combustion gas and a combustion tube in which combustion of fuel mixture is effected at a constant pressure. The compression and expansion casing also has means communicating with the interior thereof for providing fuel mixture thereto. The combustion tube includes a constant-pressure chamber adapted to communicate with the interior of the compression and expansion casing through a first valve which opens only when the fuel mixture within the compression and expansion casing is in a compressed condition, a combustion-sustaining chamber communicating with the constant-pressure chamber and having an igniter for igniting and sustaining combustion of fuel mixture and a constant-pressure combustion chamber communicating with the combustion-sustaining chamber to cause further complete combustion of the combustion gas from the combustion-sustaining chamber. The constant-pressure combustion chamber is adapted to communicate with the interior of the compression and expansion casing through a second valve which opens only when the operating member of the compression and expansion casing is in an initial portion of its expansion stroke.
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