Patent US3805754A successfully refreshed from Google Patents.
US3805754A
Expired / Lapsed
US
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Fuel control arrangement for an internal combustion engine
Assignee: ZF International UK Ltd
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Filing: 1973-01-04
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Granted: 1974-04-23
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Expires: 1993-01-04
Abstract
Abstract A fuel control arrangement for an internal combustion engine includes a speed-responsive valve in a passage communicating with the inlet manifold of the engine. An actuator is responsive to the pressure in the manifold and to the pressure in the passage on a side of the valve remote from the manifold, to operate a fuel valve for the engine, the arrangement being such that when the engine speed is above a predetermined level and the manifold pressure is below a predetermined level, fuel flow to the engine is reduced.
Inventors
- 👤 J Soltau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:39
CPC Classifications
F; F02; F02M; F02M3/00; F02M3/02; F02M3/04; F02M3/05; Y; Y10; Y10S; Y10S261/00; Y10S261/19
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
191 words
An arrangement for controlling the fuel supply to an internal combustion engine which includes an intake manifold, comprising a pressure-responsive actuating means, a passage inter connecting said manifold and said actuating means, a first valve in said passage between said manifold and said actuating means, said first valve including a casing having an inlet and an outlet, a member rotatable within the casing and sealingly engaged therewith between the inlet and the outlet, a passage in said member to permit communication between the inlet and the outlet, a closure means for the passage pivotally mounted on said member, biasing means engaging the closure means in a direction to shut the valve, the closure means being responsive to centrifugal force to open the valve, and means for rotating said member at a speed dependent on the speed of the engine, and a second valve operable by the actuating means, the arrangement being such that at a predetermined pressure in the inlet manifold and a predetermined speed of the member in the first valve the second valve is operated by said actuating means to vary the amount of fuel supplied to the engine.
Claim 2
Dependent Claim
191 words
An arrangement for controlling the fuel supply to an internal combustion engine which includes an intake manifold, comprising a pressure-responsive actuating means, a passage inter connecting said manifold and said actuating means, a first valve in said passage between said manifold and said actuating means, said first valve including a casing having an inlet and an outlet, a member rotatable within the casing and sealingly engaged therewith between the inlet and the outlet, a passage in said member to permit communication between the inlet and the outlet, a closure means for the passage pivotally mounted on said member, biasing means engaging the closure means in a direction to shut the valve, the closure means being responsive to centrifugal force to open the valve, and means for rotating said member at a speed dependent on the speed of the engine, and a second valve operable by the actuating means, the arrangement being such that at a predetermined pressure in the inlet manifold and a predetermined speed of the member in the first valve the second valve is operated by said actuating means to vary the amount of fuel supplied to the engine.
Claim 3
Dependent Claim
35 words
An arrangement as claimed in claim 1 which includes a third valve in said passage in series with said first valve, said third valve being responsive to the position of a throttle for the engine.
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) | 1977-04-22 | 1977-10-22 | 1978-04-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-04-22 | 1981-10-22 | 1982-04-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-04-22 | 1985-10-22 | 1986-04-23 | $7700.00 | Window Closed / Lapsed |