Fuel injection system
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United States of America Patent
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Oct 13, 1987
Grant Date -
N/A
app pub date -
Jan 27, 1986
filing date -
Jan 28, 1985
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fuel injection system according to the present invention comprises a fuel injection nozzle for injecting a supplementary fuel prior to injection of a main fuel, a distributor-type fuel injection pump for supplying the main fuel to the nozzle, a supplementary fuel feed pump for delivering the supplementary fuel to the nozzle, a relief valve for adjusting the pressure of the fuel from the feed pump to a fixed level, and a supplementary fuel feed valve disposed between the relief valve and the nozzle. The open period of the feed valve is controlled in accordance with the operating state of the engine.
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