Air/fuel induction system for spark ignition internal combustion engines, and electromagnetic valves
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 13, 1986
Issued Date -
N/A
app pub date -
Feb 15, 1985
filing date -
Jan 15, 1982
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A motor vehicle fuel system operable selectively to supply metered quantities of petrol or LPG in its gaseous state to a carburetter induction passage. The LPG system includes a single stage pressure regulator and an injection valve which may be a digital or an analogue valve. The regulator operates to vary the pressure of gaseous LPG with variations in engine loading by referring that pressure across a single diaphragm to the pressure established in the induction passage downstream of the throttle valve by operation of the engine, while maintaining that regulated gas pressure above that subsisting in the induction passage upstream of the throttle valve. An electronic control system, which may be an analogue control system or a digital control system incorporating a microprocessor having a data store matrix, responds to certain engine operating conditions and controls operation of the injection valve whereby the latter injects metered quantities of gaseous LPG for presentation to the induction passage upstream of the throttle valve in accordance with the requirements of the engine. If a digital injection valve is used, provision is preferably made for smoothing the pulsed output of that valve before it is presented to the induction passage.

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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
SOLEX (U K ) LIMITED | 77 CAPITOL PARK CAPITOL WAY A COMPANY OF BRITISH LONDON NW9 OEW |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Clarke, Peter J | Leighton Buzzard, GB2 | 26 | 546 |
Marriage, David J | Dunstable, GB2 | 3 | 34 |
Pagdin, Brian C | Dunstable, GB2 | 8 | 162 |
Shadbolt, Colin F | Leighton Buzzard, GB2 | 2 | 13 |
Sheppard, Ian J | St. Albans, GB2 | 4 | 26 |
Ullman, Thomas J | Cranfield, GB2 | 2 | 13 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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