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Originally Posted by zippyt
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The coal dust engine (first generation Diesel) was 10 ft high, developed 13 hp and exploded.
The 1900 4-stroke that ran on vegetable oil (actually Diesel envisioned his inventions would run on hemp oil), made 25 hp but the diesel didn't really become viable until 1927 when Bosch invented a crude fuel injection.
Between the 1893 coal dust engine and the 1900 veggie oil engine, the machine changed so much the patents didn't apply anymore.
