US3241768A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection valves
Assignee: Associated Engineering Ltd
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Filing: 1964-04-24
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Granted: 1966-03-22
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Expires: 1984-04-24
Abstract
No abstract record available.
Inventors
- 👤 Croft Brian Hugh
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:13
CPC Classifications
F; F02; F02M; F02M61/00; F02M61/16; F02M61/162; F02M51/00; F02M51/06; F02M51/061; F02M51/0625; F02M51/0635; F02M51/0642; F02M51/0653; F02M51/0657; F02M51/08; F02M61/04; F02M61/06; F02M61/14; F02M61/145; F02M69/00; F02M69/46; F02M69/50; F02M2700/00; F02M2700/05; F02M2700/055
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN ELECTROMAGNETICALLY OPERATED FUEL INJECTION VALVE HAVING A VALVE BODY WHICH IS ADAPTED TO BE RECEIVED WITHIN A CAVITY IN A PART OF AN ENGINE, A VALVE STEM LOCATED WITHIN THE BODY AND ENGAGING A VALVE SEATING AT ONE END AND HAVING AN ARMATURE PORTION AT ITS OTHER END, A SOLENOID FOR ATTRACTING SAID ARMATURE TO LIFT SAID ONE END OF THE VALVE STEM FROM THE SEATING TO OPEN THE VALVE AND ALLOW FUEL TO FLOW THROUGH AN OUTLET ORIFICE, SPRING MEANS FOR NORMALLY URGING THE VALVE STEM INTO CONTACT WITH THE SEATING, A SWIRL CHAMBER SURROUNDING THE VALVE STEM UPSTREAM OF THE VALVE SEATING AND AT LEAST ONE INLET PORT EXTENDING THROUGH THE WALL OF THE VALVE BODY AND SUBSTANTIALLY TANGENTIAL TO THE SWIRL CHAMBER FOR FEEDING FUEL TO THE SWIRL CHAMBER.
Claim 2
Dependent Claim
133 words
AN ELECTROMAGNETICALLY OPERATED FUEL INJECTION VALVE HAVING A VALVE BODY WHICH IS ADAPTED TO BE RECEIVED WITHIN A CAVITY IN A PART OF AN ENGINE, A VALVE STEM LOCATED WITHIN THE BODY AND ENGAGING A VALVE SEATING AT ONE END AND HAVING AN ARMATURE PORTION AT ITS OTHER END, A SOLENOID FOR ATTRACTING SAID ARMATURE TO LIFT SAID ONE END OF THE VALVE STEM FROM THE SEATING TO OPEN THE VALVE AND ALLOW FUEL TO FLOW THROUGH AN OUTLET ORIFICE, SPRING MEANS FOR NORMALLY URGING THE VALVE STEM INTO CONTACT WITH THE SEATING, A SWIRL CHAMBER SURROUNDING THE VALVE STEM UPSTREAM OF THE VALVE SEATING AND AT LEAST ONE INLET PORT EXTENDING THROUGH THE WALL OF THE VALVE BODY AND SUBSTANTIALLY TANGENTIAL TO THE SWIRL CHAMBER FOR FEEDING FUEL TO THE SWIRL 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) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |