Patent US4233945A successfully refreshed from Google Patents.
US4233945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carburetion in an internal combustion engine
Assignee: Individual
•
Filing: 1978-09-21
•
Granted: 1980-11-18
•
Expires: 1998-09-21
Abstract
Abstract Apparatus is provided for use in an internal combustion engine for increasing the efficiency of the engine and more particularly for improving the carburation of fuel supplied to the engine. The apparatus includes the combination of a heat exchanger in the fuel line for heating liquid fuels supplied to the engine carburetor, a plurality of deflecting blades positioned adjacent to the carburetor air intake for causing turbulation of air entering the carburetor, and an air injector for forcing air into the carburetor throat downstream of the carburetor Venturi section and to increase the proportion of air in the fuel mixture.
Inventors
- 👤 Elden W. Beitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:11
CPC Classifications
F; F02; F02M; F02M23/00; F02M23/02; F02M29/00; F02M29/04; F02M29/06; F02M31/00; F02M31/02; F02M31/16; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
196 words
In an internal combustion engine including an intake manifold, a carburetor having a carburetor body with a fluid flow passage therethrough, said passage including one end providing an air inlet and another end connected to said intake manifold, a choke plate positioned in said one end of said passage, means for providing for pivotal movement of said choke plate, means for controlling fluid flow through said passage including a throttle valve positioned in said another end, means for supplying fuel to the carburetor, and an air cleaner positioned on said carburetor body and including a central cylindrical cavity communicating with said air inlet, the improvement comprising in combination, means for heating fuel supplied to said carburetor, means for turbulating air flowing through said air inlet, said means for turbulating air flowing through said air inlet including a plurality of blades located in said central cylindrical cavity and adjacent said inlet opening upstream of said choke plate and spaced circumferentially around the periphery of said inlet opening, said blades each extending inwardly from said inlet opening periphery, and means for injecting air into said fluid flow passage above said throttle valve and closely adjacent said throttle valve.
Claim 2
Dependent Claim
196 words
In an internal combustion engine including an intake manifold, a carburetor having a carburetor body with a fluid flow passage therethrough, said passage including one end providing an air inlet and another end connected to said intake manifold, a choke plate positioned in said one end of said passage, means for providing for pivotal movement of said choke plate, means for controlling fluid flow through said passage including a throttle valve positioned in said another end, means for supplying fuel to the carburetor, and an air cleaner positioned on said carburetor body and including a central cylindrical cavity communicating with said air inlet, the improvement comprising in combination, means for heating fuel supplied to said carburetor, means for turbulating air flowing through said air inlet, said means for turbulating air flowing through said air inlet including a plurality of blades located in said central cylindrical cavity and adjacent said inlet opening upstream of said choke plate and spaced circumferentially around the periphery of said inlet opening, said blades each extending inwardly from said inlet opening periphery, and means for injecting air into said fluid flow passage above said throttle valve and closely adjacent said throttle valve.
Claim 3
Dependent Claim
42 words
The apparatus set forth in claim 1 wherein said means for heating fuel supplied to said carburetor includes a container, at least a portion of said fuel line extending through said container, and means for conveying engine coolant fluid through said container.
Claim 4
Dependent Claim
24 words
The apparatus as set forth in claim 2 wherein said portion of said fuel line includes at least two generally parallel fuel line conduits.
Claim 5
Dependent Claim
62 words
The apparatus set forth in claim 1 wherein said carburetor body includes a cylindrical wall surrounding said throttle valve, and wherein said means for injecting air into said fluid flow passage includes an air conduit through said cylindrical wall and having one end communicating with said fluid flow passage adjacent said throttle valve, and means for forcing air through said air conduit.
Claim 6
Dependent Claim
39 words
The apparatus as set forth in claim 4 wherein said means for forcing air through said air conduit includes an air pump and means for driving said air pump at a speed proportional to the speed of said engine.
Claim 7
Dependent Claim
27 words
The apparatus as set forth in claim 4 and further including a valve means connected to said air conduit for controlling air flow through said air conduit.
Claim 8
Dependent Claim
101 words
The apparatus set forth in claim 1 wherein said means for heating fuel supplied to said carburetor includes a container having a chamber therein and a portion of said fuel line extending through said chamber, and means for conveying engine coolant fluid through said chamber, and wherein said carburetor body includes a cylindrical wall surrounding said throttle valve, and wherein said means for injecting air into said fluid flow passage includes an air conduit through said cylindrical wall and having one end communicating with said fluid flow passage adjacent said throttle valve, and means for forcing air through said air conduit.
Claim 9
Dependent Claim
239 words
In an internal combustion engine including an intake manifold, a carburetor having a carburetor body including a cylindrical wall having a fluid flow passage therethrough, said passage including one end providing an air inlet and another end connected to said intake manifold, a throttle valve positioned in said another end, means for supplying fuel to the carburetor, and an air cleaner positioned on said carburetor body and including a central cylindrical cavity communicating with said air inlet, the improvement comprising in combination, means for heating fuel supplied to said carburetor, means for turbulating air flowing through said air inlet, said air turbulating means including a plurality of blades located in said central cylindrical cavity adjacent said inlet opening and spaced circumferentially around the periphery of said inlet opening, said blades each extending inwardly from said inlet opening periphery, and disposed at an acute angle with respect to the direction of air flowing through said fluid flow passage, and means for injecting air into said fluid flow passage above said throttle valve and closely adjacent said throttle valve, said means for injecting air into said fluid flow passage including an air conduit through said cylindrical wall and having one end communicating with said fluid flow passage adjacent said throttle valve, and means for forcing air through said air conduit including an air pump and means for driving said air pump at a speed proportional to the speed of said engine.
Claim 10
Dependent Claim
239 words
In an internal combustion engine including an intake manifold, a carburetor having a carburetor body including a cylindrical wall having a fluid flow passage therethrough, said passage including one end providing an air inlet and another end connected to said intake manifold, a throttle valve positioned in said another end, means for supplying fuel to the carburetor, and an air cleaner positioned on said carburetor body and including a central cylindrical cavity communicating with said air inlet, the improvement comprising in combination, means for heating fuel supplied to said carburetor, means for turbulating air flowing through said air inlet, said air turbulating means including a plurality of blades located in said central cylindrical cavity adjacent said inlet opening and spaced circumferentially around the periphery of said inlet opening, said blades each extending inwardly from said inlet opening periphery, and disposed at an acute angle with respect to the direction of air flowing through said fluid flow passage, and means for injecting air into said fluid flow passage above said throttle valve and closely adjacent said throttle valve, said means for injecting air into said fluid flow passage including an air conduit through said cylindrical wall and having one end communicating with said fluid flow passage adjacent said throttle valve, and means for forcing air through said air conduit including an air pump and means for driving said air pump at a speed proportional to the speed of said engine.
Claim 11
Dependent Claim
42 words
The apparatus set forth in claim 8 wherein said means for heating fuel supplied to said carburetor includes a container, at least a portion of said fuel line extending through said container, and means for conveying engine coolant fluid through said container.
Claim 12
Dependent Claim
24 words
The apparatus as set forth in claim 9 wherein said portion of said fuel line includes at least two generally parallel fuel line conduits.
Claim 13
Dependent Claim
27 words
The apparatus as set forth in claim 4 and further including a valve means connected to said air conduit for controlling air flow through said air conduit.
References Cited (Backward Citations)
US1300600A
Cited
US1038262A
Cited
US1153999A
Cited
US1150115A
Cited
US2205750A
Cited
US3077391A
Cited
US4014303A
Cited
US3986486A
Cited
US3990421A
Cited
US4146002A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1983-11-18 | 1984-05-19 | 1984-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-11-18 | 1988-05-19 | 1988-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-11-18 | 1992-05-19 | 1992-11-18 | $7700.00 | Window Closed / Lapsed |