US4092963A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vaporizer-regulator, liquid fuel
Assignee: Individual
•
Filing: 1977-02-24
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Granted: 1978-06-06
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Expires: 1997-02-24
Abstract
Abstract A vaporizer-regulator device is which liquid fuel intended for use in an internal combustion engine is vaporized by an electrically energized heating element. The liquid fuel is contained in a reservoir in which a constant fuel level is maintained during operation by inlet and outlet floats. The outlet float senses a rise in fluid level, operating a contact switch, cutting the electrical current to the heating element, and opening a reservoir outlet drain. The inlet float senses a lowering of fuel level and causes fresh fuel to be injected into the reservoir. In this manner, heating element temperature and reservoir fluid level is controlled during engine operation. The liquid fuel is fed by hydrostatic pressure into a vaporizing chamber and brought into contact with the heating element. The dry fuel vapor thus produced is drawn through a two stage control valve into an expansion chamber. It is then drawn through a duct into an annular or spud-in nozzle, attached to a carburetor venturi mouth, mixing with air to form a combustable mixture. The two stage control valve displacement, correctly metering the dry fuel vapor into the expansion chamber, is caused by either a vacuum operated diaphragm or a throttle linkage controlled cam.
Inventors
- 👤 Richard A. Vrooman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:52
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/16; F02M31/18; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
187 words
In a liquid fuel vaporizer-regulator device, a lower housing fuel reservoir chamber means, an upper housing expansion chamber means with an outlet fitting means to distribute fuel vapor to an engine, a smaller diameter vapor chamber duct means connecting the upper and lower housing means, hydrostatic pressure means suppling liquid fuel from the lower housing means into the vapor chamber duct means lower end, an electrically energized heating element and housing means placed inside the vapor chamber duct means lower end and immersed in the liquid fuel, a float operated inlet and outlet valve and linkage means placed around the vapor chamber duct means and controlling fluid level hydrostatic pressure means and the electrically energized heating element means operation, high and low speed valve means mounted in a valve housing means to regulate fuel vapor flow from the vapor chamber duct means upper end into the upper housing expansion chamber means, a flexible diaphram means to displace the high speed valve means and an adjusting screw means to displace the low speed valve means, providing fuel vapor to a carburetor means to operate an internal combustion engine.
Claim 2
Dependent Claim
187 words
In a liquid fuel vaporizer-regulator device, a lower housing fuel reservoir chamber means, an upper housing expansion chamber means with an outlet fitting means to distribute fuel vapor to an engine, a smaller diameter vapor chamber duct means connecting the upper and lower housing means, hydrostatic pressure means suppling liquid fuel from the lower housing means into the vapor chamber duct means lower end, an electrically energized heating element and housing means placed inside the vapor chamber duct means lower end and immersed in the liquid fuel, a float operated inlet and outlet valve and linkage means placed around the vapor chamber duct means and controlling fluid level hydrostatic pressure means and the electrically energized heating element means operation, high and low speed valve means mounted in a valve housing means to regulate fuel vapor flow from the vapor chamber duct means upper end into the upper housing expansion chamber means, a flexible diaphram means to displace the high speed valve means and an adjusting screw means to displace the low speed valve means, providing fuel vapor to a carburetor means to operate an internal combustion engine.
Claim 3
Dependent Claim
23 words
The combination described in claim 1 with the addition of mounting lug means cast or machined into the upper and lower housing means.
Claim 4
Dependent Claim
32 words
The combination described in claim 1 with either the upper or lower housing means cast or machined integrally with a vapor-nozzel venturi and control valve means into an unitized housing assembly means.
Claim 5
Dependent Claim
179 words
In a liquid fuel vaporizer-regulator device, a lower housing fuel reservoir chamber means, an upper housing expansion chamber means with an outlet fitting means to distribute fuel vapor to an engine, a smaller diameter vapor chamber duct means connecting the upper and lower housing means, hydrostatic pressure means suppling liquid fuel from the lower housing means into the vapor chamber duct means lower end, an electrically energized heating element and housing means placed inside the vapor chamber duct means lower end and immersed in the liquid fuel, a float operated inlet and outlet valve and linkage means placed around the vapor chamber duct means and controlling fluid level hydrostatic pressure means and the electrically energized heating element means operation, high and low speed valve means mounted in a valve housing means to regulate fuel vapor flow from the vapor chamber duct means upper end into the upper housing expansion chamber means, a mechanical means to displace the high speed valve means and an adjusting screw means to displace the low speed valve means to operate an internal combustion engine.
Claim 6
Dependent Claim
179 words
In a liquid fuel vaporizer-regulator device, a lower housing fuel reservoir chamber means, an upper housing expansion chamber means with an outlet fitting means to distribute fuel vapor to an engine, a smaller diameter vapor chamber duct means connecting the upper and lower housing means, hydrostatic pressure means suppling liquid fuel from the lower housing means into the vapor chamber duct means lower end, an electrically energized heating element and housing means placed inside the vapor chamber duct means lower end and immersed in the liquid fuel, a float operated inlet and outlet valve and linkage means placed around the vapor chamber duct means and controlling fluid level hydrostatic pressure means and the electrically energized heating element means operation, high and low speed valve means mounted in a valve housing means to regulate fuel vapor flow from the vapor chamber duct means upper end into the upper housing expansion chamber means, a mechanical means to displace the high speed valve means and an adjusting screw means to displace the low speed valve means to operate an internal combustion engine.
Claim 7
Dependent Claim
23 words
The combination described in claim 4 with the addition of mounting lug means cast or machined into the upper and lower housing means.
Claim 8
Dependent Claim
32 words
The combination described in claim 4 with either the upper or lower housing means cast or machined integrally with a vapor-nozzel venturi and control valve means into an unitized housing assembly means.
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) | 1981-06-05 | 1981-12-05 | 1982-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-05 | 1985-12-05 | 1986-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-05 | 1989-12-05 | 1990-06-06 | $7700.00 | Window Closed / Lapsed |