Patent US3778039A successfully refreshed from Google Patents.
US3778039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water injection system
Assignee: Individual
•
Filing: 1972-12-05
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Granted: 1973-12-11
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Expires: 1992-12-05
Abstract
Abstract A system for injecting water into the boost venturi of a carburetor for ultimate introduction into the combustion chambers of a gasoline type combustion engine. The water flow is metered through an orifice in the water supply conduit at a predetermined ratio to the fuel and is injected into the constricted passage of the boost venturi at a level corresponding to the level of fuel injection.
Inventors
- 👤 A Dore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:08
CPC Classifications
F; F02; F02M; F02M25/00; F02M25/022; F02M25/025; F02M25/028; F02M25/032; F02M25/035; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
195 words
A system for injecting water into a carburetor having a main venturi and a secondary venturi positioned within the main venturi and a fuel nozzle having an outlet communicating with the restricted passage of said secondary venturi comprising: a tank for containing water, a water nozzle mounted in said secondary venturi and having an outlet in communication with said restricted passage at substantially the level of said fuel nozzle outlet, conduit means connecting said tank to said water nozzle for supplying water thereto, said conduit means having an orifice for metering the rate of water flow therethrough and into said nozzle, control means in said conduit means for controlling the flow of water to said water nozzle, an insert mounted in said conduit means downstream of said control means, said insert comprising an elongated tubular body and a conically shaped disc extending transversely of said body and formed integral therewith, said disc being located approximately centrally of said tubular body and inclined rearwardly in the direction of water flow, said disc having a central opening defining said orifice, said water nozzle, said insert and said conduit means being formed of a corrision resistant plastic material.
Claim 2
Independent Claim
195 words
A system for injecting water into a carburetor having a main venturi and a secondary venturi positioned within the main venturi and a fuel nozzle having an outlet communicating with the restricted passage of said secondary venturi comprising: a tank for containing water, a water nozzle mounted in said secondary venturi and having an outlet in communication with said restricted passage at substantially the level of said fuel nozzle outlet, conduit means connecting said tank to said water nozzle for supplying water thereto, said conduit means having an orifice for metering the rate of water flow therethrough and into said nozzle, control means in said conduit means for controlling the flow of water to said water nozzle, an insert mounted in said conduit means downstream of said control means, said insert comprising an elongated tubular body and a conically shaped disc extending transversely of said body and formed integral therewith, said disc being located approximately centrally of said tubular body and inclined rearwardly in the direction of water flow, said disc having a central opening defining said orifice, said water nozzle, said insert and said conduit means being formed of a corrision resistant plastic material.
Claim 3
Dependent Claim
190 words
In a carburetor comprising a casing having an elongated passage, a portion of said passage having a restricted throat portion defining a first venturi, a boost venturi mounted within said restricted throat portion and defining a restricted passage for the flow of air therethrough, a fuel nozzle projecting into said restricted passage and having an outlet for introducing fuel thereinto, the improvement comprising: means for injecting water into said carburetor, said water injecting means comprising a water nozzle projecting into said restricted passage and having an outlet in communication with said restricted passage at substantially the same level as said fuel nozzle outlet, a tank for containing water, conduit means connecting said tank to said water nozzlE, an insert mounted in said conduit means, said insert comprising a tubular body and a conically shaped disc extending transversely of said body and inclined rearwardly in the direction of water flow, said disc being located substantially centrally of said tubular body and formed integral therewith, and said disc having a central opening therein defining an orifice for metering the rate of water flow introduced into said restricted passage of said boost venturi.
Claim 4
Dependent Claim
190 words
In a carburetor comprising a casing having an elongated passage, a portion of said passage having a restricted throat portion defining a first venturi, a boost venturi mounted within said restricted throat portion and defining a restricted passage for the flow of air therethrough, a fuel nozzle projecting into said restricted passage and having an outlet for introducing fuel thereinto, the improvement comprising: means for injecting water into said carburetor, said water injecting means comprising a water nozzle projecting into said restricted passage and having an outlet in communication with said restricted passage at substantially the same level as said fuel nozzle outlet, a tank for containing water, conduit means connecting said tank to said water nozzlE, an insert mounted in said conduit means, said insert comprising a tubular body and a conically shaped disc extending transversely of said body and inclined rearwardly in the direction of water flow, said disc being located substantially centrally of said tubular body and formed integral therewith, and said disc having a central opening therein defining an orifice for metering the rate of water flow introduced into said restricted passage of said boost venturi.
Claim 5
Dependent Claim
44 words
A carburetor according to claim 2 including means in said conduit means for controlling the flow of water to said water nozzle, said control means interrupting the flow of water to said water nozzle upon the termination of air flow through said restricted passage.
Claim 6
Dependent Claim
22 words
A carburetor according to claim 2 wherein said water nozzle, said conduit means and said insert is formed of a plastic material.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-12-10 | 1977-06-11 | 1977-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-10 | 1981-06-11 | 1981-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-10 | 1985-06-11 | 1985-12-11 | $7700.00 | Window Closed / Lapsed |