An exhaust pipe for a motor vehicle, said exhaust pipe comprising:
- a connecting device disposed at a front end of said exhaust pipe, said connecting device is substantially a tee tube having a first port connected directly to an exhaust port of an engine compartment of the motor vehicle, a second port connected to an intake port of a filter tank, and a third port opening to the outside environment, said second port having an upright gate disposed therein for allowing unidirectional flow of exhaust into said filter tank, and said third port having a horizontal gate for permitting unidirectional flow of ambient air into said connecting device;
- said filter tank disposed between said connecting device and a discharge device, said filter tank having a suitably sized space and being an enclosed structure, said filter tank further having said intake port at an upper portion of a front end thereof and a discharge port at a rear end thereof, said intake port connecting said connecting device while said discharge port connecting said discharge device, said space accommodating at least a filter unit and treated alkaline water of a predetermined amount, said front end of said discharge device being provided with a multiplicity of laterally oriented air vents running lengthwise of said filter tank for passage of ambient air into said filter tank device to cool the alkaline water, said filter unit having a collect chamber disposed at a front end thereof and two guide tubes and three fork tubes which are arranged in an alternate manner, said guide tubes and said fork tubes having inlets all disposed and positioned at a baffling frame which is mounted behind said collect chamber, said baffling frame being an L-shaped structure with a multiplicity of tiny holes, said guide tubes being substantially V-shaped and bent downwardly with outlets immersed in the alkaline water, said fork tubes being substantially Y-shaped and having horizontally disposed straight portions with outlets connected to said discharge port at the rear end of said filter tank, said fork tubes further having bent portions immersed in the alkaline water, said bent portions having a plurality of round holes at a lower part thereof such that said bent portions are filled with alkaline water, and said straight portions of said fork tubes further having a plurality of guide plates disposed at an upper wall and a lower wall thereof in an alternate manner;
- and
- said discharge device disposed at a rear end of said exhaust pipe, said discharge device having a front end thereof connected to said filter tank and a plurality of round exhaust tubes at a lower portion of a rear end thereof for discharging exhaust, said discharge device having multiple screens of activated carbon disposed therein and a plurality of guide plates alternately arranged in an upper wall and a lower wall thereof, wherein
- exhaust emitted from the engine compartment of the motor vehicle enters via said filter tank into said guide tubes of said filter unit of said filter tank and into the alkaline water where the exhaust is subjected to a first filtration and muffling;
- the exhaust then escapes into said fork tubes where said guide plates disposed along said straight portions may prolong travel of the exhaust and its sound wave and remove some of the toxic substances carried in the exhaust, and the exhaust subsequently enters said discharge device to be further filtered by the activated carbon and discharged to the outside environment via said exhaust tubes.