Patent ID: 7163571

Claim:
In an automotive exhaust system, an exhaust gas cooling and particulate scrubbing system for receiving exhaust gas from an engine and cooling the gases prior to discharge to the atmosphere comprising: an intercooler for indirect cooling of the exhaust gas passing therethrough including a jacket holding a quantity of liquid cooling medium separated from the exhaust gas by a wall defining a channel for the passage of the exhaust gas through the jacket, wherein the intercooler includes a plurality of tubes positioned in the channel and fluidically connected with the holes in the wall to permit circulation of the liquid cooling medium therethrough, said intercooler including at least one airflow duct located in the jacket to permit air to flow through the jacket; and a direct exhaust gas cooling and scrubbing device fluidically connected to the intercooler, the device including a body defining a chamber for holding a quantity of liquid cooling medium and a passage for directing exhaust gas to the chamber for passage through the liquid cooling medium in direct contact with the liquid cooling medium.