Patent US3575145A successfully refreshed from Google Patents.
US3575145A
Expired / Lapsed
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Method and apparatus for injecting fuel into the cylinders of a multicylinder piston-type internal combustion engine
Assignee: Sulzer AG
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Filing: 1968-11-05
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Granted: 1971-04-20
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Expires: 1988-11-05
Abstract
Abstract Fuel injection apparatus for multicylinder engines comprising a fuel pump, delivery lines to the individual cylinders, separate means to measure the volume of fuel flowing through those lines, and means to adjust the injection pressure in those lines or the injection opening times therefrom into the individual cylinders.
Inventors
- 👤 Anton Steliger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:23
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/008; F02D41/30; F02D41/38; F02D41/3809; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2514; Y10T137/2531
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
40 words
Fuel injector apparatus according to claim 1 wherein said comparison means effect comparison of the signals representative of fuel flow through all of said fuel lines but one against the signal representative of fuel flow through said one fuel line.
Claim 2
Dependent Claim
58 words
Fuel injection apparatus according to claim 1 wherein said comparison means develop a signal representative of the average flow of fuel through said fuel lines and wherein said adjusting means adjust the settings of said injector valves in accordance with departures of the fuel flow representative signals of said fuel lines respectively from said average flow representative signal.
Claim 3
Dependent Claim
28 words
Fuel injection apparatus according to claim 1 wherein said separate means to measure the flow of fuel comprise volumetric motors and means to detect motion of said motors.
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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) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |