US6279840B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injector
Assignee: Delphi Technologies Inc
•
Filing: 2000-03-08
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Granted: 2001-08-28
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Expires: 2020-03-08
Abstract
Abstract A fuel injector having a nozzle body defining a bore, an outwardly opening valve member slidable within the bore, the valve member defining a blind bore within which an inwardly opening valve needle is slidable, the valve needle being engageable with a seating to control fuel flow towards a first outlet opening provided in the valve member, and a second outlet opening provided in the valve member, the second outlet opening being in constant communication with a part of the blind bore upstream of the seating and being located such that, in a closed position of the valve member, the second outlet opening is closed by the nozzle body, outward movement of the valve member to an open position permitting fuel delivery through the second outlet opening.
Inventors
- 👤 Paul Buckley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:15
CPC Classifications
F; F02; F02M; F02M51/00; F02M51/06; F02M51/0603; F02M45/00; F02M45/02; F02M45/04; F02M45/08; F02M45/086; F02M51/061; F02M51/0625; F02M51/0664; F02M51/0671; F02M61/00; F02M61/04; F02M61/042; F02M61/045; F02M61/08; F02M63/00; F02M63/0012; F02M63/0059; F02M63/0063; F02M63/0064; F02M2200/00; F02M2200/46
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
A fuel injector comprising, a nozzle body defining a bore, an outwardly opening valve member slidable within said bore, said valve member defining a blind bore within which an inwardly opening valve needle is slidable, said valve needle being engageable with a seating to control fuel flow towards a first outlet opening provided in said valve member and a second outlet opening provided in said valve member, said second outlet opening being in constant communication with a part of said blind bore upstream of said seating and being located such that, in a closed position of said valve member, said second outlet opening is closed by said nozzle body, outward movement of said valve member to an open position permitting fuel delivery through said second outlet opening, the valve needle being arranged such that inward movement of the valve needle in a direction away from the seating permits fuel delivery through the first outlet opening.
Claim 2
Dependent Claim
155 words
A fuel injector comprising, a nozzle body defining a bore, an outwardly opening valve member slidable within said bore, said valve member defining a blind bore within which an inwardly opening valve needle is slidable, said valve needle being engageable with a seating to control fuel flow towards a first outlet opening provided in said valve member and a second outlet opening provided in said valve member, said second outlet opening being in constant communication with a part of said blind bore upstream of said seating and being located such that, in a closed position of said valve member, said second outlet opening is closed by said nozzle body, outward movement of said valve member to an open position permitting fuel delivery through said second outlet opening, the valve needle being arranged such that inward movement of the valve needle in a direction away from the seating permits fuel delivery through the first outlet opening.
Claim 3
Dependent Claim
142 words
A fuel injector, comprising: a nozzle body defining a bore, an outwardly opening valve member slidable within said bore, said valve member defining a blind bore within which an inwardly opening valve needle is slidable, said valve needle being engageable with a seating to control fuel flow towards a first outlet opening provided in said valve member, and a second outlet opening provided in said valve member, said second outlet opening being in constant communication with a part of said blind bore upstream of said seating and being located such that, in a closed position of said valve member, said second outlet opening is closed by said nozzle body, outward movement of said valve member to an open position permitting fuel delivery through said second outlet opening and wherein a force for moving said valve member is transmitted through said valve needle.
Claim 4
Dependent Claim
142 words
A fuel injector, comprising: a nozzle body defining a bore, an outwardly opening valve member slidable within said bore, said valve member defining a blind bore within which an inwardly opening valve needle is slidable, said valve needle being engageable with a seating to control fuel flow towards a first outlet opening provided in said valve member, and a second outlet opening provided in said valve member, said second outlet opening being in constant communication with a part of said blind bore upstream of said seating and being located such that, in a closed position of said valve member, said second outlet opening is closed by said nozzle body, outward movement of said valve member to an open position permitting fuel delivery through said second outlet opening and wherein a force for moving said valve member is transmitted through said valve needle.
Claim 5
Dependent Claim
60 words
A fuel injector as claimed in claim 2 wherein an actuator is associated with said valve needle so as to permit movement of said needle in one direction to permit fuel delivery through said first outlet opening and in an opposite direction to move said valve needle and said valve member to permit fuel delivery through said second outlet opening.
Claim 6
Dependent Claim
14 words
A fuel injector as claimed in claim 3 , wherein said actuator is bidirectional.
Claim 7
Dependent Claim
64 words
A fuel injector as claimed in claim 2 , wherein the outer surface of the valve member is shaped to define a seating surface which is engageable with a corresponding seating surface defined by the nozzle body, whereby engagement between said seating surfaces, in use, causes the second outlet opening to be closed so as to prevent fuel delivery through the second outlet opening.
Claim 8
Dependent Claim
29 words
A fuel injector as claimed in claim 5 , having a plurality of appropriately positioned said first outlet openings and a plurality of appropriately positioned said second outlet openings.
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) | 2004-08-27 | 2005-02-26 | 2005-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2008-08-27 | 2009-02-26 | 2009-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2012-08-27 | 2013-02-26 | 2013-08-28 | $7700.00 | Window Closed / Lapsed |