Engine charging system with dual function charge supplying and charge cooling blower

摘要

A two-stroke cycle turbocharged internal combustion engine is provided with a dual core after-cooler and a dual function positively driven blower which at low engine loads is connected to provide necessary charging air to the engine air intake preferably through the inlet of the turbocharger compressor. During periods of high-load operation, when the turbocharger energy is alone sufficient to provide the engine inlet charge, the blower is reconnected to direct cooling air through the aftercooler system thus lowering the temperature of the inlet charge under high-load conditions. Numerous variations and modifications of the concept are disclosed.