Patent US4183342A successfully refreshed from Google Patents.
US4183342A
Expired / Lapsed
US
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Fuel injection system for compression ignition (diesel) internal combustion engines
Assignee: Volkswagen AG
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Filing: 1978-01-12
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Granted: 1980-01-15
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Expires: 1998-01-12
Abstract
Abstract A fuel injection system for a compression ignition (Diesel) internal combustion engine, having a fuel injection pump and devices, associated therewith, for increasing the idling speed and advancing the injection timing during cold starting. The idling speed increasing device is coupled to the injection timing advancing device such that both may be operated simultaneously.
Inventors
- 👤 Ingolf Lohner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:56
CPC Classifications
F; F02; F02D; F02D1/00; F02D1/02; F02D33/00; F02M; F02M59/00; F02M59/44; F02M59/447; F02B; F02B3/00; F02B3/06
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
66 words
A fuel injection system for a compression ignition (Diesel) internal combustion engine comprising a fuel injection pump; means associated with said injection pump for increasing the idling speed of the engine during cold starting; and means associated with said injection pump for advancing the injection timing during cold starting; said idling speed increasing means being coupled to said injection timing advancing means for simultaneous operation therewith.
Claim 2
Dependent Claim
66 words
A fuel injection system for a compression ignition (Diesel) internal combustion engine comprising a fuel injection pump; means associated with said injection pump for increasing the idling speed of the engine during cold starting; and means associated with said injection pump for advancing the injection timing during cold starting; said idling speed increasing means being coupled to said injection timing advancing means for simultaneous operation therewith.
Claim 3
Dependent Claim
39 words
The fuel injection system defined in claim 1, further comprising a speed control lever associated with said injection pump, and wherein said idling speed increasing means is coupled to said lever for adjusting the position thereof during cold starting.
Claim 4
Dependent Claim
81 words
The fuel injection system defined in claim 2, wherein said injection timing advancing means includes a timing control element associated with said injection pump for advancing the injection timing of said injection pump, and wherein said system further comprises hand-operated pull means, coupled to said idling speed increasing means and said injection timing advancing means, for simultaneously actuating said speed control lever to increase the idling speed and said timing control element to advance the injection timing of said injection pump.
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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) | 1983-01-14 | 1983-07-16 | 1984-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-14 | 1987-07-16 | 1988-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-14 | 1991-07-16 | 1992-01-15 | $7700.00 | Window Closed / Lapsed |