US4372275A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel vaporizing carburetor
Assignee: Individual
•
Filing: 1980-05-14
•
Granted: 1983-02-08
•
Expires: 2000-05-14
Abstract
Abstract A liquid fuel vaporizing carburetor for an internal combustion engine including a housing having a fuel reservoir, a filter assembly including a plurality of filters of progressively smaller pores positioned in said housing; one of said filters being immersed in the fuel reservoir, a baffle for drifting incoming air into the filter in the reservoir and secondary air into openings in the housing to add secondary air to the air-fuel mixture as the air-fuel mixture passes through the filter assemblies.
Inventors
- 👤 Arlo R. Schmidt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:44
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/18; F02M17/20; F02M17/22; F02M17/26; F02M17/28
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
137 words
A liquid fuel vaporizer for an internal combustion engine, said vaporizer comprising; a housing having an air inlet at one end and an outlet at the other end, a liquid fuel reservoir in said housing, a filter assembly in said housing downstream from said reservoir, said filter assembly including a series of filters of progressively smaller size pores located at spaced intervals within said housing, one of said filters being immersed in said fuel reservoir, means for directing air from said air inlet into said fuel reservoir whereby air passing through said fuel reservoir will pick up fuel and carry it into said filter assembly where the fuel droplets are reduced in size prior to entering the fuel outlet, and secondary air inlet means in said housing for admitting secondary air into the spaces between said filters.
Claim 2
Dependent Claim
137 words
A liquid fuel vaporizer for an internal combustion engine, said vaporizer comprising; a housing having an air inlet at one end and an outlet at the other end, a liquid fuel reservoir in said housing, a filter assembly in said housing downstream from said reservoir, said filter assembly including a series of filters of progressively smaller size pores located at spaced intervals within said housing, one of said filters being immersed in said fuel reservoir, means for directing air from said air inlet into said fuel reservoir whereby air passing through said fuel reservoir will pick up fuel and carry it into said filter assembly where the fuel droplets are reduced in size prior to entering the fuel outlet, and secondary air inlet means in said housing for admitting secondary air into the spaces between said filters.
Claim 3
Dependent Claim
25 words
The vaporizer according to claim 1 including means for controlling the admission of secondary air in response to a predetermined operating condition of the engine.
Claim 4
Dependent Claim
21 words
The vaporizer according to claim 1 including means in said reservoir or maintaining a predetermined level of fluid in said reservoir.
Claim 5
Dependent Claim
25 words
The vaporizer according to claim 1 including means connected to the outlet of said vaporizer for heating the vaporized fuel prior to entering the engine.
Claim 6
Dependent Claim
124 words
A liquid fuel vaporizer for an internal combustion engine having a manifold, said vaporizer comprising a housing having an opening at each end, one of said openings being connected to the manifold of the engine, a filter assembly positioned in said housing between said openings and said assembly including a plurality of open cell filters of progressively smaller pore size located at spaced intervals, a fuel reservoir in said housing, means for admitting fuel into said reservoir upstream from said filter assembly, and baffle means in said housing for directing incoming air into said fuel reservoir, whereby a vacuum in the manifold will draw air through the fuel reservoir and filter assembly, and means for admitting secondary air into the spaces between said filters.
Claim 7
Dependent Claim
124 words
A liquid fuel vaporizer for an internal combustion engine having a manifold, said vaporizer comprising a housing having an opening at each end, one of said openings being connected to the manifold of the engine, a filter assembly positioned in said housing between said openings and said assembly including a plurality of open cell filters of progressively smaller pore size located at spaced intervals, a fuel reservoir in said housing, means for admitting fuel into said reservoir upstream from said filter assembly, and baffle means in said housing for directing incoming air into said fuel reservoir, whereby a vacuum in the manifold will draw air through the fuel reservoir and filter assembly, and means for admitting secondary air into the spaces between said filters.
Claim 8
Dependent Claim
19 words
The vaporizer according to claim 5, wherein said secondary air admitting means is responsive to a predetermined engine condition.
Claim 9
Dependent Claim
51 words
The vaporizer according to claim 5, wherein said housing includes a fuel reservoir and said fuel admitting means comprises a float valve assembly in said reservoir to maintain a predetermined level of fluid in said housing and further including means for directing air from said air inlet through said fuel reservoir.
Claim 10
Dependent Claim
24 words
The vaporizer according to claim 7 including a porous filter positioned in said reservoir and being partially emersed in said fluid in said reservoir.
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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) | 1986-02-07 | 1986-08-09 | 1987-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-02-07 | 1990-08-09 | 1991-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-02-07 | 1994-08-09 | 1995-02-08 | $7700.00 | Window Closed / Lapsed |