US3592392A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic fuel injection spray valve
Assignee: Societe des Procedes Modernes dInjection SOPROMI
•
Filing: 1969-06-24
•
Granted: 1971-07-13
•
Expires: 1989-06-24
Abstract
Abstract Valve has a disc-shaped armature with a hollow shaft containing a compressed coil spring that holds the valve proper, carried at the end of the shaft, closed, except when the magnet is energized.
Inventors
- 👤 Robert Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:04
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0644; F16K31/0655; F02; F02M; F02M51/00; F02M51/06; F02M51/061; F02M51/0614; F02M51/0625; F02M51/0635; F02M51/0642; F02M51/0653; F02M51/0657; F02M51/08; H; H01; H01F; H01F7/00; H01F7/06; H01F7/08; H01F7/16; H01F7/1638; H01F2007/1676; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
101 words
An electromagnetic fuel injection spray valve, including a valve proper, a spray nozzle opened and closed by said valve proper, a disc-shaped armature connected to said valve proper for operating the latter, and wherein the improvement comprises a cylindrical hollow shaft incorporated by said armature, said valve proper being associated with the free end of said shaft, a coil spring in the hollow of said shaft for biasing said valve proper to its closed position, a slider (12) slidable in the hollow of said shaft, and a magnet core, and wherein said coil spring presses on said slider against said core.
Claim 2
Dependent Claim
101 words
An electromagnetic fuel injection spray valve, including a valve proper, a spray nozzle opened and closed by said valve proper, a disc-shaped armature connected to said valve proper for operating the latter, and wherein the improvement comprises a cylindrical hollow shaft incorporated by said armature, said valve proper being associated with the free end of said shaft, a coil spring in the hollow of said shaft for biasing said valve proper to its closed position, a slider (12) slidable in the hollow of said shaft, and a magnet core, and wherein said coil spring presses on said slider against said core.
Claim 3
Dependent Claim
57 words
The injection valve as defined in claim 1, including a cylindrical housing for the fuel injection valve, and wherein said core is within said housing and has the form of a laminated magnet core that is rectangular in cross section, and the four corners of said core touch said housing to center said core inside said housing.
Claim 4
Dependent Claim
28 words
The injection valve as defined in claim 2, including a magnet armature, and wherein a face of said armature lies adjacent to said core and is cone shaped.
Claim 5
Dependent Claim
36 words
The injection valve as defined in claim 1, including a housing for the fuel injection valve, and a plurality of bores (17, 18) for connecting the hollow of said shaft to the interior of said housing.
Claim 6
Dependent Claim
37 words
The injection valve as defined in claim 1, including a housing for the fuel injection valve, and wherein part (2) of said housing guides said armature in its movement and is in direct contact with said core.
Claim 7
Dependent Claim
26 words
The injection valve as defined in claim 1, wherein the disc-shaped part of said armature is substantially rectangular and has two straight and two arcuate sides.
Claim 8
Dependent Claim
22 words
The injection valve as defined in claim 6, wherein the disc-shaped part of said armature has parallel slots to reduce eddy currents.
Claim 9
Dependent Claim
24 words
The injection valve as defined in claim 1, wherein the disc-shaped part of said armature is composed of riveted laminations to reduce eddy currents.
Claim 10
Dependent Claim
38 words
The injection valve as defined in claim 1, wherein the disc-shaped part of said armature is made of soft iron and said shaft is made of steel, and further including means for fastening together these two armature parts.
References Cited (Backward Citations)
US1504773A
Cited
US1664612A
Cited
US1664616A
Cited
US1999221A
Cited
US3070024A
Cited
US3404299A
Cited
US3375380A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |