Patent US3677529A successfully refreshed from Google Patents.
US3677529A
Expired / Lapsed
US
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Liquid fuel and air mixture charge forming device
Assignee: Individual
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Filing: 1968-01-17
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Granted: 1972-07-18
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Expires: 1988-01-17
Abstract
Abstract A charge forming device for increasing the combustibility of a volatile fuel including a valve unit for mixing compressed air and fuel. The resultant mixture is conducted along a path including metering valves responsive to a throttle setting. The mixture flow is subjected to heat and then metered through a valve responsive to the temperature of the heated mixture. The resultant metered fuel mixture is then injected into the intake manifold of an internal combustion engine, the latter including an independent parallel path of forced air. A vacuum actuated air compressing pump compresses the air to a preselected pressure and the intake of the pump is connected to the intake manifold. The exhaust of the pump is connected to a compressed air storage tank and the tank includes an exhaust port. A pressure regulator is connected to the exhaust port of the storage tank. An adjustable verturi regulator is inserted between the valve responsive to the temperature of the mixture and one of the metering valves. A second embodiment of the present device includes the aforementioned construction in addition to a conventional carburetor system which furnishes the intake manifold with an independent parallel supply of carbureted fuel. The mixture forming unit in this embodiment includes a two port inlet Tconnector. The first inlet port receives fuel and the second inlet port receives compressed air. The outlet port of the Tconnector delivers the mixture to the metering valves.
Inventors
- 👤 Mary Zane Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:20
CPC Classifications
F; F02; F02M; F02M31/00; F02M31/02; F02M31/12; F02B; F02B1/00; F02M7/00; F02M7/12; F02M7/18; F02M2700/00; F02M2700/43; F02M2700/4302; F02M2700/438; F02M2700/4383; F02M2700/4385; Y; Y02; Y02T; Y02T10/00; Y02T10/10; Y02T10/12
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
180 words
A charge forming device for utilization in an internal combustion engine comprising means for storing fuel, means for compressing air to a preselected pressure, means for mixing said fuel and said compressed air to form a mixture, means for conducting said mixture from said mixing means to an intake manifold of said internal combustion engine along a path including a plurality of means for selectively metering said mixture, means for heating said mixture along said conducting means, means for injecting said mixture into said intake manifold, and means for adding a selectively variable and independent source of air to said manifold, said plurality of means for selectively metering said mixture along said conducting means including a series connection of a first flow control valve means responsive to a throttle setting, a second flow control valve means responsive to the temperature of said mixture flowing therethrough, said second valve metering the outflow of mixture from said first valve means, and a third flow control valve means responsive to said throttle setting, said third valve metering the outflow of said second valve.
Claim 2
Dependent Claim
180 words
A charge forming device for utilization in an internal combustion engine comprising means for storing fuel, means for compressing air to a preselected pressure, means for mixing said fuel and said compressed air to form a mixture, means for conducting said mixture from said mixing means to an intake manifold of said internal combustion engine along a path including a plurality of means for selectively metering said mixture, means for heating said mixture along said conducting means, means for injecting said mixture into said intake manifold, and means for adding a selectively variable and independent source of air to said manifold, said plurality of means for selectively metering said mixture along said conducting means including a series connection of a first flow control valve means responsive to a throttle setting, a second flow control valve means responsive to the temperature of said mixture flowing therethrough, said second valve metering the outflow of mixture from said first valve means, and a third flow control valve means responsive to said throttle setting, said third valve metering the outflow of said second valve.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 together with a carburetor for supplying said intake manifold with a separate supply of carbureted fuel.
Claim 4
Dependent Claim
68 words
The apparatus of claim 1 wherein said means for mixing a portion of said fuel and said compressed air to form a mixture includes a two port inlet T-connector, the first said inlet port receiving fuel, the second said inlet port receiving compressed air, the outlet port of said connector delivering said mixture to said plurality of said means for selectively metering said mixture along said conducting means.
Claim 5
Dependent Claim
241 words
A charge forming device for utilization in an internal comBustion engine comprising means for storing fuel, means for compressing air to a preselected pressure, means for mixing said fuel and said compressed air to form a mixture, means for conducting said mixture from said mixing means to an intake manifold of said internal combustion engine along a path including a plurality of means for selectively metering said mixture, means for heating said mixture along said conducting means, means for injecting said mixture into said intake manifold, and means for adding a selectively variable and independent source of air to said manifold, said means for compressing air to a preselected pressure including a vacuum actuated air compressing pump, the intake of said pump being connected to said intake manifold, the exhaust of said pump being connected to a compressed air storage tank, the latter including an exhaust port, and means for regulating the pressure of said compressed air exiting from said exhaust port, said plurality of means for selectively metering said mixture along said conducting means including a series connection of a first flow control valve means responsive to a throttle settling a second flow control valve means responsive to the temperature of said mixture flowing therethrough, said second valve metering the outflow of mixture from said first valve means, and a third flow control valve means responsive to said throttle setting, said third valve metering the outflow of said second valve.
Claim 6
Dependent Claim
241 words
A charge forming device for utilization in an internal comBustion engine comprising means for storing fuel, means for compressing air to a preselected pressure, means for mixing said fuel and said compressed air to form a mixture, means for conducting said mixture from said mixing means to an intake manifold of said internal combustion engine along a path including a plurality of means for selectively metering said mixture, means for heating said mixture along said conducting means, means for injecting said mixture into said intake manifold, and means for adding a selectively variable and independent source of air to said manifold, said means for compressing air to a preselected pressure including a vacuum actuated air compressing pump, the intake of said pump being connected to said intake manifold, the exhaust of said pump being connected to a compressed air storage tank, the latter including an exhaust port, and means for regulating the pressure of said compressed air exiting from said exhaust port, said plurality of means for selectively metering said mixture along said conducting means including a series connection of a first flow control valve means responsive to a throttle settling a second flow control valve means responsive to the temperature of said mixture flowing therethrough, said second valve metering the outflow of mixture from said first valve means, and a third flow control valve means responsive to said throttle setting, said third valve metering the outflow of said second valve.
Claim 7
Dependent Claim
27 words
The apparatus of claim 4 wherein said means for heating said mixture includes a heating member for raising the temperature of the mixture entering said second valve.
Claim 8
Dependent Claim
29 words
The apparatus of claim 5 together with an adjustable venturi regulator serially inserted between said second and said third valves for selectively adding air to the mixture flowing therethrough.
Claim 9
Dependent Claim
43 words
The apparatus of claim 6 wherein said means for compressing air includes a storage tank for storing said compressed air, said tank serially inserted between said vacuum actuated pump and said means for mixing a portion of said fuel and said compressed air.
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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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |