Importance

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Abstract

During the starting and possibly at partial load, the diesel internal combustion engine operates in the so-called divided operation, whereby some cylinders (7 to 12) operate without fuel supply as compressors and supply compressed air to the cylinders (1 to 6) operating as engine. For example, the compressor cylinder (8) is connected with the engine cylinder (5) by way of a line (13) independent of the customary suction and exhaust lines, which includes at its one end in the proximity of the compressor cylinder (8) a donor valve (22) adapted to be controllably opened in the divided operation and at its other end in the proximity of the engine cylinder (5) a receiver valve (23). Each of the receiver valves (23) is combined with a device for the opening at will of the respectively associated line (13) in the direction of the compressor cylinder (14), whereby the opening control of the lines (13) by the devices takes place during the exhaust stroke of the coordinated engine cylinder (16 ). An exhaust gas return from the engine cylinders (1 to 6) to the compressor cylinders (7 to 12) is attained thereby and a temperature increase in the compressor cylinders is achieved with divided operation of the diesel internal combustion engine.

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First Claim