US3577966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Engine antidieseling device
Assignee: Ford Motor Co
•
Filing: 1969-12-12
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Granted: 1971-05-11
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Expires: 1989-12-12
Abstract
Abstract A container stores a small quantity of air and pumps the air into the idling system of a carburetor when the engine ignition system is turned off. The air reduces the supply of idling fuel to the engine for a time period sufficient to stop engine dieseling. An electrical solenoid valve connected to the engine ignition system controls the injection of the air into the idling passage.
Inventors
- 👤 Wilford R Collingwood
- 👤 William M Hutchison
- 👤 Frank E Mangas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:59
CPC Classifications
F; F02; F02M; F02M3/00; F02M3/02; Y; Y10; Y10S; Y10S123/00; Y10S123/11
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
136 words
In an internal combustion engine having a source of electrical energy, an induction passage for supplying fuel and air to a combustion chamber, an ignition system connected to said source of electrical energy for supplying an ignition spark to said combustion chamber, a movable throttle blade mounted in said induction passage, and an idling passage for supplying idling fuel to said induction passage downstream of said throttle blade, a mechanism for preventing engine dieseling comprising: container means for storing a quantity of air, a conduit connecting said container means with said idling passage, and means for transmitting air from said container means via said conduit to said idling passage when said ignition system is turned off, said air reducing the supply of idling fuel via said idling passage to said combustion chamber to stop engine operation.
Claim 2
Dependent Claim
136 words
In an internal combustion engine having a source of electrical energy, an induction passage for supplying fuel and air to a combustion chamber, an ignition system connected to said source of electrical energy for supplying an ignition spark to said combustion chamber, a movable throttle blade mounted in said induction passage, and an idling passage for supplying idling fuel to said induction passage downstream of said throttle blade, a mechanism for preventing engine dieseling comprising: container means for storing a quantity of air, a conduit connecting said container means with said idling passage, and means for transmitting air from said container means via said conduit to said idling passage when said ignition system is turned off, said air reducing the supply of idling fuel via said idling passage to said combustion chamber to stop engine operation.
Claim 3
Dependent Claim
79 words
The engine of claim 1 in which the transmitting means comprises a valve located in said conduit for controlling airflow through said conduit, said valve comprising an electric solenoid connected electrically to said ignition system and a valve rod movable by the magnetic field produced by energization of said solenoid, said solenoid closing said valve to prevent airflow through said conduit when the ignition system in tuRned on and opening said valve when the ignition system is turned off.
Claim 4
Dependent Claim
42 words
The engine of claim 2 in which the container means comprises a movable diaphragm dividing said container into first and second chambers, said first chamber communicating with said conduit through said valve, and a spring urging said diaphragm into said first chamber.
Claim 5
Dependent Claim
31 words
The engine of claim 3 in which the second chamber communicates with the intake manifold of the engine so the intake manifold vacuum draws said diaphragm out of said first chamber.
Claim 6
Dependent Claim
62 words
The engine of claim 4 comprising a valve seat for each end of said valve rod, the first valve seat connecting said first chamber to said conduit and the second valve seat connecting said first chamber to the atmosphere, and a spring urging the valve rod to said second seat, said solenoid moving the valve rod to the first seat when energized.
Claim 7
Dependent Claim
42 words
The engine of claim 1 in which the container means comprises a movable diaphragm dividing said container into first and second chambers, said first chamber communicating with said conduit through said valve, and a spring urging said diaphragm into said first chamber.
Claim 8
Dependent Claim
62 words
The engine of claim 2 comprising a valve seat for each end of said valve rod, the first valve seat connecting said first chamber to said conduit and the second valve seat connecting said first chamber to the atmosphere, and a spring urging the valve rod to said second seat, said solenoid moving the valve rod to the first seat when energized.
References Cited (Backward Citations)
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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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |