Diesel Engine

—A type of internal combustion engine designed to operate on gaseous or liquid fuel, and to work under a principle which involves the production of very high temperatures during its cycle of operations by the compre ion of the air in the working cylinder prior to the introduction of the fuel. The air is compre ed to about 500 lbs. which raises its temperature to about 1000° Fahr. At this moment, which is the beginniag of the power stroke, the fuel is introduced into the heated air in the cylinder and is ignited by its high temperature. The fuel is regulated by the action of a governor which automatically controls the amount supplied according to the varying load.; Dietrine.—A trade name for a compound prepared for insulating purposes.