Charge air condensation collection system for engines with exhaust gas recirculation

摘要

A charge air condensation separation system for a turbocharged engine, especially suited for engines employing EGR, includes a turbocharger having a compressor providing charge air with a charge air cooler connected to the compressor to cool the charge air. A charge air delivery duct is connected to an outlet of the charge air cooler and a torroidal trap having an annular inlet is disposed in the charge air delivery duct with a sump for collecting condensation integral to the torroidal trap. A drain line for removing condensation from the sump for expulsion to the atmosphere is connected to the trap and a pump or other device for overcoming pressure differential in the drain line is employed in certain embodiments. For EGR systems employing a mixer, the condensation separator can be incorporated adjacent to or integral with the mixer to minimize additional volume requirements in the engine compartment.