| 摘要 |
A drive shaft is coaxially rotatably mounted in a cylindrical engine casing and extends out of the casing. An arm extends radially from the drive shaft in the casing. A combustion chamber is formed in the arm in close proximity with the cylindrical interior surface of the casing and has an end with an exhaust opening therethrough and an ignition opening formed therethrough in the combustion chamber. A spark plug is mounted in the casing and in operative proximity with the opening of the arm. Fuel and air lines extend through the arm to the combustion chamber for supplying fuel and air thereto so that when the spark plug produces a spark in the combustion chamber, the arm rotates the drive shaft.
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