Category:Semi-diesel

Sem`i-die"sel, a.

Defn: designating an internal-combustion engine of a type resembling The diesel engine in using as fuel heavy oil which is injected in a Spray just before the end of the compression stroke and is fired Without electrical ignition. The fuel is sprayed into an iron box (called a hot bulb or hot pot) opening into the combustion chamber, And heated for ignition by a blast-lamp until the engine is running, When it is, ordinarily, kept red hot by the heat of combustion.