US4391257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fuel injection pump for internal combustion engines
Assignee: Robert Bosch GmbH
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Filing: 1980-02-15
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Granted: 1983-07-05
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Expires: 2000-02-15
Abstract
Abstract The invention relates to a fuel injection pump wherein the fuel delivery to the engine is interrupted by means of a magnet. To this end, the magnet engages the governor lever at least indirectly, the governor lever is also arranged to engage the rpm governor of the fuel injection pump and further being coupled in a force-locking manner with the fuel quantity contorl member.
Inventors
- 👤 Franz Eheim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:45
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/02; F02D1/08; F02D1/12; F02D1/122; F02D1/127; F02M; F02M41/00; F02M41/08; F02M41/10; F02M41/12; F02M41/123; F02M41/125; F02M41/126; F02M63/00; F02M63/02; F02M63/0205; F02M63/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A fuel injection pump having a housing for internal combustion engines having a control member for a fuel injection quantity actuatable by means of an adjusting member of an rpm governor via a governor lever and a drag spring which stresses said governor lever counter to a shut off direction which permits a sufficient range of motion relative to said rpm governor, and further having an electric servomotor, said servomotor including an electromagnet, an armature and a force spring which drives against said armature for adjusting the control member into a stop position in which a fuel supplied by the pump is diverted and not used, characterized in that said armature of said servomotor engages said governor lever and therethrough is connected in a force-locking manner with said control member so that upon the adjustment effected by means of said servomotor, the position of said adjusting member of the rpm governor remains unchanged, and said force spring acts upon said armature so that a fuel diversion, when the electromagnet is switched off, is triggered via said force spring and said armature.
Claim 2
Dependent Claim
181 words
A fuel injection pump having a housing for internal combustion engines having a control member for a fuel injection quantity actuatable by means of an adjusting member of an rpm governor via a governor lever and a drag spring which stresses said governor lever counter to a shut off direction which permits a sufficient range of motion relative to said rpm governor, and further having an electric servomotor, said servomotor including an electromagnet, an armature and a force spring which drives against said armature for adjusting the control member into a stop position in which a fuel supplied by the pump is diverted and not used, characterized in that said armature of said servomotor engages said governor lever and therethrough is connected in a force-locking manner with said control member so that upon the adjustment effected by means of said servomotor, the position of said adjusting member of the rpm governor remains unchanged, and said force spring acts upon said armature so that a fuel diversion, when the electromagnet is switched off, is triggered via said force spring and said armature.
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) | 1986-07-04 | 1987-01-03 | 1987-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-07-04 | 1991-01-03 | 1991-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-07-04 | 1995-01-03 | 1995-07-05 | $7700.00 | Window Closed / Lapsed |