Patent US3760780A successfully refreshed from Google Patents.
US3760780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric heating means for fuel vaporization in internal combustion engines
Assignee: Individual
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Filing: 1971-08-12
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Granted: 1973-09-25
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Expires: 1991-08-12
Abstract
Abstract Electric heating means for fuel vaporization in internal combustion engines to improve the efficiency, performance and starting thereof, an optimum amount of electrical power being supplied to the heating means during operation of the engine. Important features relate to the mounting of the electric heating means in a support plate between a carburetor and an intake manifold and in the construction and mounting of the heating means to achieve maximum efficiency of radiation of heat into the air-fuel mixture. Another feature relates to the use of a heating unit for each engine cylinder, mounted adjacent the intake valve. Further features relate to the construction of the heating means for improving the starting of small engines having a cubic inch displacement of on the order of thirty cubic inches or less.
Inventors
- 👤 W Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:20
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/12; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
274 words
In apparatus for improving the performance of an internal combustion engine having an intake manifold and having a carburetor including a housing having a flow passage, a generally planar outer mounting surface generally transverse to the axis of said passage and a throttle plate in said passage pivotally mounted on an axis intermediate said flow passage axis and generally parallel to said mounting surface for movement between a closed position and an open position in which one side of said plate projects outwardly, a heating element support plate adapted for mounting between said outer mounting surface of said carburetor and said monifold and having a through passage for flow of mixed air and fuel from said carburetor passage into said intake manifold, said plate having a transverse opening between the opposite surfaces thereof and between said through passage and an outer side surface portion of said plate, and an elongated electric heating unit supported by said plate to extend in said transverse opening, said electric heating unit extending from one internal side surface portion of said through passage to a terminal end spaced a short distance from an opposite internal side surface portion of said through passage, said transverse opening having an axis in a plane through the axis of said through passage and generally trnasverse to a plane defined by said throttle plate and carburetor passage, and said terminal end being positioned opposite said one side of said throttle plate in the closed position thereof, said transverse opening axis being at an angle to the planes of the opposite surfaces of said plate to position said terminal end away from said throttle plate.
Claim 2
Dependent Claim
274 words
In apparatus for improving the performance of an internal combustion engine having an intake manifold and having a carburetor including a housing having a flow passage, a generally planar outer mounting surface generally transverse to the axis of said passage and a throttle plate in said passage pivotally mounted on an axis intermediate said flow passage axis and generally parallel to said mounting surface for movement between a closed position and an open position in which one side of said plate projects outwardly, a heating element support plate adapted for mounting between said outer mounting surface of said carburetor and said monifold and having a through passage for flow of mixed air and fuel from said carburetor passage into said intake manifold, said plate having a transverse opening between the opposite surfaces thereof and between said through passage and an outer side surface portion of said plate, and an elongated electric heating unit supported by said plate to extend in said transverse opening, said electric heating unit extending from one internal side surface portion of said through passage to a terminal end spaced a short distance from an opposite internal side surface portion of said through passage, said transverse opening having an axis in a plane through the axis of said through passage and generally trnasverse to a plane defined by said throttle plate and carburetor passage, and said terminal end being positioned opposite said one side of said throttle plate in the closed position thereof, said transverse opening axis being at an angle to the planes of the opposite surfaces of said plate to position said terminal end away from said throttle plate.
Claim 3
Dependent Claim
270 words
In apparatus for improving the performance of an internal combustion engine having an intake manifold and having a carburetor including a housing having a flow passage, a generally planar outer mounting surface generally transverse to the axis of said passage and a throttle plate in said passage pivotally mounted on an axis intermediate said flow passaGe axis and generally parallel to said mounting surface for movement between a closed position and an open position in which one side of said plate projects outwardly, a heating element support plate adapted for mounting between said outer mounting surface of said carburetor and said manifold and having a through passage for flow of mixed air and fuel from said carburetor passage into said intake manifold, said plate having a transverse opening between the opposite surfaces thereof and between said through passages and an outer side surface portion of said plate, and an elongated electric heating unit supported by said plate to extend into said transverse opening, said electric heating unit extending from one internal side surface portion of said through passage to a terminal end spaced a short distance from an opposite internal side surface portion of said through passage, said heating unit including an outer metallic housing, and an electric resistance element positioned within only a terminal end portion of said unit, said transverse opening having an axis in a plane through the axis of said through passage and generally transverse to a plane defined by said throttle plate and carburetor passage axes, and said terminal end being positioned opposite said one side of said throttle plate in the closed position thereof.
Claim 4
Dependent Claim
270 words
In apparatus for improving the performance of an internal combustion engine having an intake manifold and having a carburetor including a housing having a flow passage, a generally planar outer mounting surface generally transverse to the axis of said passage and a throttle plate in said passage pivotally mounted on an axis intermediate said flow passaGe axis and generally parallel to said mounting surface for movement between a closed position and an open position in which one side of said plate projects outwardly, a heating element support plate adapted for mounting between said outer mounting surface of said carburetor and said manifold and having a through passage for flow of mixed air and fuel from said carburetor passage into said intake manifold, said plate having a transverse opening between the opposite surfaces thereof and between said through passages and an outer side surface portion of said plate, and an elongated electric heating unit supported by said plate to extend into said transverse opening, said electric heating unit extending from one internal side surface portion of said through passage to a terminal end spaced a short distance from an opposite internal side surface portion of said through passage, said heating unit including an outer metallic housing, and an electric resistance element positioned within only a terminal end portion of said unit, said transverse opening having an axis in a plane through the axis of said through passage and generally transverse to a plane defined by said throttle plate and carburetor passage axes, and said terminal end being positioned opposite said one side of said throttle plate in the closed position thereof.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |