US3794302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floatless carburetor for internal combustion engines
Assignee: Autoelektronik AG
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Filing: 1972-12-05
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Granted: 1974-02-26
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Expires: 1992-12-05
Abstract
Abstract A floatless carburetor for internal combustion engines comprising a suction tube, an air funnel therein, a spray tube opening within the air funnel, a throttle valve in the suction tube ahead of the spray tube, and a main nozzle disposed in a fuel chamber for delivering fuel to said spray tube. The main nozzle is formed as a mechanically and electrically controllable regulating valve. The valve member is drivingly connected to a magnetic ram which itself is connected by means of a resilient intermediary member to the linkage which operates the throttle valve. The magnetic ram can be actuated by electric currents the intensity of which is characteristic for the parameters which determine the preparation of the combustible mixture, whereby an electromagnetic adjustment can be superposed to the mechanical basic adjustment of the throttle valve.
Inventors
- 👤 R Diener
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:54
CPC Classifications
F; F02; F02M; F02M17/00; F02M17/02; F02M17/04; F02M51/00; F02M51/06; F02M51/061; F02M51/0614; F02M51/0617; F02M51/0625; F02M51/0664; F02M51/0671; F02M51/08; F02M7/00; F02M7/12; F02M7/22; Y; Y10; Y10S; Y10S261/00; Y10S261/74; Y10S261/82
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
154 words
A floatless carburetor for internal combustion engines comprising a suction tube, a suction funnel formed within said tube, a spray pipe arranged to deliver fuel into the suction funnel, a throttle valve within said suction tube, a main nozzle for metering the delivery of fuel to said spray tube, said main nozzle being formed by a mechanically and electrically controllable regulating valve, a conduit for delivering fuel from said regulating valve to said spray tube, linkage means for mechanically adjusting said throttle valve, means for electrically controlling said regulating valve by a current responsive member, a valve seat chamber containing said regulating valve and adapted to contain fuel, and an elastic intermediary member connected to said linkage means and to said current responsive member for additional adjustment of said regulating valve in response to the intensity of the electric current, said intensity being characteristic of the parameters determining the preparation of the combustible mixture.
Claim 2
Dependent Claim
154 words
A floatless carburetor for internal combustion engines comprising a suction tube, a suction funnel formed within said tube, a spray pipe arranged to deliver fuel into the suction funnel, a throttle valve within said suction tube, a main nozzle for metering the delivery of fuel to said spray tube, said main nozzle being formed by a mechanically and electrically controllable regulating valve, a conduit for delivering fuel from said regulating valve to said spray tube, linkage means for mechanically adjusting said throttle valve, means for electrically controlling said regulating valve by a current responsive member, a valve seat chamber containing said regulating valve and adapted to contain fuel, and an elastic intermediary member connected to said linkage means and to said current responsive member for additional adjustment of said regulating valve in response to the intensity of the electric current, said intensity being characteristic of the parameters determining the preparation of the combustible mixture.
Claim 3
Dependent Claim
22 words
A carburetor according to claim 1, in which said throttle valve is arranged in the suction tube ahead of said spray tube.
Claim 4
Dependent Claim
28 words
A carburetor according to claim 2, in which a tube is branched off said suction tube and communicates with said fuel delivery conduit leading to said spray tube.
Claim 5
Dependent Claim
18 words
A carburetor according to claim 3, wherein said regulating valve is formed by an electromagnetically adjustable ball valve.
Claim 6
Dependent Claim
26 words
A carburetor according to claim 4, wherein the electromagnetically adjustable ball valve is drivingly connected with a magnetic ram which is resiliently mounted between two diaphragms.
Claim 7
Dependent Claim
19 words
A carburetor according to claim 5, in which a plurality of exciter coils are associated with said magnetic ram.
Claim 8
Dependent Claim
18 words
A carburetor according to claim 1, in which a constant fuel pressure prevails in said valve seat chamber.
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) | 1977-02-25 | 1977-08-27 | 1978-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-25 | 1981-08-27 | 1982-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-25 | 1985-08-27 | 1986-02-26 | $7700.00 | Window Closed / Lapsed |