Fuel injection system for internal combustion engines
Abstract
Abstract A SINGLE FUEL METERING VALVE IS PROVIDED TO CONTROL THE INJECTION OF FUEL INTO A PLURALITY OF CYLINDERS IN AN INTERNAL-COMBUSTION ENGINE. A PLURALITY OF FUEL INJECTION NOZZLES ARE EACH COUPLED BETWEEN THE OUTLET OF THE FUEL METERING VALVE AND THE AIR INTAKE CONDUIT OF A CORRESPONDING CYLINDER. AN ELECTRICAL CONTROL CIRCUIT IS COUPLED BETWEEN THE CRANKSHAFT OF THE MOTOR AND THE FUEL METERING VALVE TO CONTROL THE TIMING AND THE QUANTITY OF FUEL INJECTED INTO THE AIR INTAKE CONDUITS THROUGH THE FUEL INJECTION NOZZLES. THE FUEL INJECTION NOZZLES CAN BE ELECTROMAGNETICALLY ACTUATED VALVES WHICH ARE OPENED IN SEQUENCE DURING THE INTAKE STROKE OF THE CORREESPONDING CYLINDERS. A FUEL DISTRIBUTOR CAN ALSO BE CONNECTED BETWEEN THE FUEL METERING VALVE AND THE INJECTION NOZZLES TO COUPLE THE FUEL INJECTION NOZZLES TO THE OUTLET OF THE FUEL METERING VALVE IN TIME SEQUENCE.
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Bibliographic Details
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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) | 1977-02-04 | 1977-08-06 | 1978-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-04 | 1981-08-06 | 1982-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-04 | 1985-08-06 | 1986-02-05 | $7700.00 | Window Closed / Lapsed |