Exhaust emission control device

Claim 2

An exhaust emission control device comprising a hydrogen producing means, a control means for effecting control of the quantity of hydrogen produced by said hydrogen producing means in accord with the production of exhaust gases of combustion, and a hydrogen supply line for supplying hydrogen produced by said hydrogen producing means to an oXides of nitrogen reductive reaction chamber, said control means comprising a variable resistor connected in series to an electric circuit for applying a voltage on said hydrogen producing means, and a member connecting a slider of said variable resistor to an acceleration pedal.

Claim 3

An exhaust emission control device comprising a hydrogen producing means relying on electrolysis of water for producing hydrogen and including a hydrogen collector having mounted therein a check valve provided with a float, a control means for effecting control of the quantity of hydrogen produced by said hydrogen producing means in accord with the production of exhaust gases of combustion, a hydrogen supply line for supplying hydrogen produced by said hydrogen producing means to an oxides of nitrogen reductive reaction chamber, an exhaust gases cooling means disposed on the downstream side of said oxides of nitrogen reductive reaction chamber, and means for supplying to said hydrogen producing means water produced by condensation of the moisture content of cooled exhaust gases.

Claim 4

An exhaust emission control device comprising a hydrogen producing means relying on electrolysis of water for producing hydrogen and including a hydrogen collector having mounted therein a check valve provided with a float, a control means for effecting control of the quantity of hydrogen produced by said hydrogen producing means in accord with the production of exhaust gases of combustion, a hydrogen supply line for supplying hydrogen produced by said hydrogen producing means to an oxides of nitrogen reductive reaction chamber, an exhaust gases cooling means disposed on the downstream side of said oxides of nitrogen reductive reaction chamber, and means for supplying to said hydrogen producing means water produced by condensation of the moisture content of cooled exhaust gases.

Claim 5

An exhaust emission control device as defined in claim 2 in which a DC voltage supplied from a generator driven by an engine producing said exhaust gases is applied on said hydrogen producing means relying on electrolysis of water.