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US3818876A Expired / Lapsed US ⏱️ 0.0 years remaining

Smog control system and method

Assignee: Individual
•
Filing: 1973-05-29
•
Granted: 1974-06-25
•
Expires: 1993-05-29
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Abstract

Abstract A fuel system for reducing nitrogen oxides and carbon monoxide in the exhaust gas emissions of an internal combustion engine includes a storage tank for gasoline and a dissolved emulsifying agent, a storage tank for deionized water, and means for pumping controlled volumes of the gasoline and emulsifying agent and the water to an emulsifying chamber and thence to the engine. In one form of the invention, rotary stirring means within the emulsifying chamber emulsify the water in gasoline, and the emulsion is then introduced into the engine carburetor. In another form of the invention, a centrifugal pump emulsifies the water in the gasoline. The emulsion is then pumped into the engine cylinders by direct fuel injection. The emulsion substantially reduces the reaction temperature of gasoline and air in the engine cylinders, and thereby reduces the formation of nitrogen oxides which are a major cause of air pollution.

Inventors

  • 👤 M Voogd

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-26 01:18
CPC Classifications
F; F02; F02M; F02M25/00

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 32 words
A system according to claim 1 wherein the emulsifying means includes rotary stirring means disposed within the emulsifying chamber adapted to be rotated so as to emulsify the water in the gasoline.
Claim 2
Dependent Claim 69 words
A system according to claim 2 wherein the recirculating means includes a return line having one end in direct communication with the carburetor fuel chamber, and another end in direct communication with the emulsifying chamber at a point which permits centrifugal action of the rotary stirring means to such a portion of the emulsion accumulated in the carburetor fuel chamber back to the emulsifying chamber through the return line.
Claim 3
Dependent Claim 20 words
A system according to claim 2 including a motor operated separately from the engine for driving the rotary stirring means.
Claim 4
Dependent Claim 86 words
A system according to claim 1 wherein the emulsifying means includes an elongated rotary driven shaft; a propeller stirrer connected to the shaft and disposed so as to create suction within the emulsifying chamber to draw water and gasoline into the chamber, the propeller stirrer emulsifying the water in the gasoline as it rotates; and a rotary blade spaced from the propeller stirrer and connected to the rotary shaft for circulating the emulsion produced by the propeller stirrer from the emulsifying chamber to the carburetor means.

References Cited (Backward Citations)

US2461580A Cited
FR1029992A Cited
FR1032752A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-24 1977-12-24 1978-06-25 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-24 1981-12-24 1982-06-25 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-24 1985-12-24 1986-06-25 $7700.00 Window Closed / Lapsed

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