US3842809A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid flow metering valve for internal combustion engine
Assignee: Lear Corp EEDS and Interiors
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Filing: 1972-10-03
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Granted: 1974-10-22
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Expires: 1992-10-03
Abstract
Abstract A fuel flow metering valve for a combustion engine that is operated by an electro-dynamic motor. The motor comprises a magnetic means surrounded by a moving coil. A movable valve metering member is connected to the moving coil. The moving coil is connected to a D.C. electric generating means which is responsive to selected conditions of the engine operations. The geometry of the valve and the impressed voltage on the moving coil are so related that a linear proportional relation exists between the rate of fuel flow and the value of the impressed voltage.
Inventors
- 👤 J King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:20
CPC Classifications
F; F02; F02M; F02M7/00; F02M7/12; F02M7/18; F02M7/20; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
The combination of a combustion engine having a fuel conduit means, an electric generating means responsive to conditions of engine operations determining rate of fuel flow to the engine for generating a continuous electrical signal proportional to the magnitude of said conditions, and a fuel metering valve in said conduit means; said valve comprising a casing having two portions, one portion having an inlet port and an outlet port, a valve member controlling flow through said portion; an electrodynamic motor for actuating said valve member located in the other portion, said motor comprising an annular pole piece element, an annular magnetic means element positioned concentrically with said pole piece element and spaced therefrom the form an air gap, and a moving coil located within said air gap; means connecting said valve member to said moving coil, said connecting means being positioned concentrically with said annular pole piece element and magnetic means element and passing through one of said elements; and a conductor means connecting said moving coil to said electric generating means.
Claim 2
Dependent Claim
172 words
The combination of a combustion engine having a fuel conduit means, an electric generating means responsive to conditions of engine operations determining rate of fuel flow to the engine for generating a continuous electrical signal proportional to the magnitude of said conditions, and a fuel metering valve in said conduit means; said valve comprising a casing having two portions, one portion having an inlet port and an outlet port, a valve member controlling flow through said portion; an electrodynamic motor for actuating said valve member located in the other portion, said motor comprising an annular pole piece element, an annular magnetic means element positioned concentrically with said pole piece element and spaced therefrom the form an air gap, and a moving coil located within said air gap; means connecting said valve member to said moving coil, said connecting means being positioned concentrically with said annular pole piece element and magnetic means element and passing through one of said elements; and a conductor means connecting said moving coil to said electric generating means.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-10-21 | 1978-04-22 | 1978-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-10-21 | 1982-04-22 | 1982-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-10-21 | 1986-04-22 | 1986-10-22 | $7700.00 | Window Closed / Lapsed |