US4946107A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic fuel injection valve
Assignee: Pacer Industries Inc
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Filing: 1988-11-29
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Granted: 1990-08-07
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Expires: 2008-11-29
Abstract
Abstract An electromagnetically operable fuel injection valve for use with an internal combustion engine. The injection valve includes a non-magnetic housing having a fuel passage therethrough and a fixed magnetic core therein. A magnetic movable armature is floatably movable within a sleeve member within the housing. The movable armature has a nozzle portion of reduced diameter which carries at the exit end thereof a ball valve. A nozzle seat having a fuel discharge orifice is adapted for reception of the ball valve and means are provided for guiding said ball valve into sealing engagement with the discharge orifice.
Inventors
- 👤 Donald E. Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:46
CPC Classifications
F; F02; F02M; F02M51/00; F02M51/06; F02M51/061; F02M51/0625; F02M51/0664; F02M51/0671; F02M51/0682; F02M51/0667; F02M51/08; F02M61/00; F02M61/16; F02M61/165; Y; Y10; Y10S; Y10S239/00; Y10S239/90
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
98 words
An electromagnetically operable fuel injection valve for use with an internal combustion engine, said injection valve including: a housing having a fuel passage therethrough, a fixed magnetic core disposed within said housing, a non-magnetic sleeve within said housing, a magnetic movable armature floatably movable within said sleeve without frictional engagement, said movable armature having a nozzle portion of reduced diameter which carries at the exit end thereof a ball valve, a nozzle seat for reception of said ball valve having a fuel discharge orifice therein, and means for guiding said ball valve into sealing engagement with said orifice.
Claim 2
Dependent Claim
98 words
An electromagnetically operable fuel injection valve for use with an internal combustion engine, said injection valve including: a housing having a fuel passage therethrough, a fixed magnetic core disposed within said housing, a non-magnetic sleeve within said housing, a magnetic movable armature floatably movable within said sleeve without frictional engagement, said movable armature having a nozzle portion of reduced diameter which carries at the exit end thereof a ball valve, a nozzle seat for reception of said ball valve having a fuel discharge orifice therein, and means for guiding said ball valve into sealing engagement with said orifice.
Claim 3
Dependent Claim
17 words
A valve in accordance with claim 1 wherein the said housing is fabricated of a non-magnetic material.
Claim 4
Dependent Claim
21 words
A valve in accordance with claim 1 wherein flat spring means guide the ball valve into sealing engagement with said orifice.
Claim 5
Dependent Claim
25 words
A valve in accordance with claim 1 wherein the fuel passage is continuous and completely defined by rigid valve elements sealably secured to one another.
Claim 6
Dependent Claim
43 words
A valve in accordance with claim 1 wherein the components defining the fuel passage, the fixed magnetic core and the said movable armature are separate from the housing so as to permit testing of the valve prior to assembly of the complete valve.
References Cited (Backward Citations)
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Cited
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US4711397A
Cited
US4548361A
Cited
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US4597558A
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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) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |