Apparatus for treating exhaust gas

Claim 1

In apparatus for treating exhaust gas from an internal combustion engine comprising an exhaust pipe having a jacket for the flow of cooling liquid therethrough and a conditioner chamber for receiving exhaust gas from said pipe, the improvement wherein the conditioner chamber comprises: a. an outer casing having a water jacket defined between an inner wall and an outer wall of said casing for circulation through said jacket of cooling water, said casing including a lower portion containing a bath of gas conditioning liquid and an upper portion having an exhaust gas inlet, connected to said pipe, and having an exhaust gas outlet, b. duct means defining a flow path internally of said casing from said inlet through at least a portion of the surface of said liquid bath extending to a position adjacent to the lower end of said casing, said duct means being connected to said inner wall of said water jacket, c. means in the lower portion of said casing and immersed in said bath for causing bubbles of the exhaust gas to form at horizontally distributed positions and travel upwardly through said bath from said position to the surface of said bath, d. condensing means in the upper portion of said casing for contacting exhaust gas leaving the surface of said bath in the flow of said exhaust gas towards said outlet, said condensing means defining a plurality of flow paths in parallel with each other and having surfaces for drip-back of condensed liquid to said path, and being connected to said inner wall for heat extraction from said condensing means to said water in said water jacket.