Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Patent
1979-01-24
1980-12-09
Schacher, Richard A.
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
2395339, F02M 4500
Patent
active
042380758
ABSTRACT:
A fuel injection jet for combustion engines has an injection head and a spring biased jet needle adapted to reciprocate towards and away from a conical needle valve seat provided by the injection head. Jet bores are provided in the injection head in at least two planes and are released in sequence upon reciprocation of the jet needle with increased fuel pressure. At least one jet bore emanates from the conical needle seat in order that it may be completely released even after slightest lifting of the jet needle to be fully admitted with fuel for atomization during injection. For the fuel supply exceeding the requirement beyond the idling and lower partial load range, the jet needle may be provided with a pin which is guided in a pocket bore of the injection head. This pocket bore is rearwardly of the needle seat and one or more jet bores adapted to be covered by the pin communicate therewith and are adapted to be closed when the pin is in the bore. With increased output requirements and consequently fuel pressure the bores covered by the pin are released. A channel network may be incorporated to interconnect the fuel supply channel and the jet bores.
REFERENCES:
patent: 1833080 (1931-11-01), Kenworthy
patent: 3442451 (1969-05-01), De Nagel
patent: 3559892 (1971-02-01), De Luca
Audi NSU Auto Union Aktiengesellschaft
Schacher Richard A,.
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