Patent US3752454A successfully refreshed from Google Patents.
US3752454A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injecting carburetor
Assignee: Individual
•
Filing: 1971-08-06
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Granted: 1973-08-14
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Expires: 1991-08-06
Abstract
Abstract There is disclosed a fuel injector for internal combustion engines having a rectangular throat and a valve in the throat having a gate located in the throat between air intake and outlet chambers, the gate being mounted to slide across the throat by operation of an accelerator to control the quantity of air passing through the throat to the intake manifold, there being a series of fuel jet ports in the throat arranged to be opened successively as the valve gate opens and closes the throat to eject fuel into the air stream passing through the throat, the proportion of air and fuel once determined being constant through the full range of acceleration and deceleration of the engine. The proportion may be varied by controlling the output pressure of a pressure regulato between the fuel supply and the carburetor.
Inventors
- 👤 J Korponay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:18
CPC Classifications
F; F02; F02M; F02M11/00; F02M11/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
343 words
Fuel injecting means for internal combustion engines comprising a body having an air intake passage; an air and fuel mixing and delivery chamber having a rectangular throat portion between said intake passage and said chamber through which an air stream passes to the intake manifold of an engine; means for delivering fuel under pressure to the body including a plurality of parallel fuel duct means fixed to and extending through said body in the direction toward said throat portion and each having an open end terminating at one straight edge of said rectangular throat portion; valve means including a plate forming a gate slidably mounted on said body for movement to and from closed position across said throat portion to control said air stream quantitatively, said gate having a leading straight edge parallel to and engageable with said straight edge of said throat portion at which said fuel duct means terminate, said means for delivering fuel including fuel metering and injecting means including a plurality of parallel jet tube means secured to said leading straight edge of said gate and extending into and substantially coextensive with said fuel duct means in longitudinal sliding engagement therewith; gasket means positioned between said leading edge of said gate and said body where said fuel duct means terminate to prevent the escape of fuel from the ends of said fuel duct means when the gate is in closed position, said jet tube means each having at least one longitudinally extending row of jet ports for injecting fuel under pressure into and transversely across said throat portion when drawn out of said fuel duct means by said gate; and accelerator operated means operatively connected to said gate for causing a greater or lesser number of said jet ports to pass beyond the end of said fuel duct means and cause a determinate quantity of fuel to be injected from said jet ports into said throat portion and for simultaneously causing the gate to be moved by said accelerator means to open and close said throat a determinate extent.
Claim 2
Dependent Claim
343 words
Fuel injecting means for internal combustion engines comprising a body having an air intake passage; an air and fuel mixing and delivery chamber having a rectangular throat portion between said intake passage and said chamber through which an air stream passes to the intake manifold of an engine; means for delivering fuel under pressure to the body including a plurality of parallel fuel duct means fixed to and extending through said body in the direction toward said throat portion and each having an open end terminating at one straight edge of said rectangular throat portion; valve means including a plate forming a gate slidably mounted on said body for movement to and from closed position across said throat portion to control said air stream quantitatively, said gate having a leading straight edge parallel to and engageable with said straight edge of said throat portion at which said fuel duct means terminate, said means for delivering fuel including fuel metering and injecting means including a plurality of parallel jet tube means secured to said leading straight edge of said gate and extending into and substantially coextensive with said fuel duct means in longitudinal sliding engagement therewith; gasket means positioned between said leading edge of said gate and said body where said fuel duct means terminate to prevent the escape of fuel from the ends of said fuel duct means when the gate is in closed position, said jet tube means each having at least one longitudinally extending row of jet ports for injecting fuel under pressure into and transversely across said throat portion when drawn out of said fuel duct means by said gate; and accelerator operated means operatively connected to said gate for causing a greater or lesser number of said jet ports to pass beyond the end of said fuel duct means and cause a determinate quantity of fuel to be injected from said jet ports into said throat portion and for simultaneously causing the gate to be moved by said accelerator means to open and close said throat a determinate extent.
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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) | 1976-08-13 | 1977-02-12 | 1977-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-13 | 1981-02-12 | 1981-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-13 | 1985-02-12 | 1985-08-14 | $7700.00 | Window Closed / Lapsed |