Fluid sprinkling – spraying – and diffusing – Fluid pressure responsive discharge modifier* or flow... – Fuel injector or burner
Patent
1986-03-26
1987-12-29
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Fluid pressure responsive discharge modifier* or flow...
Fuel injector or burner
F02M 4700
Patent
active
047155400
ABSTRACT:
A fuel injection nozzle is disclosed, which comprises a nozzle body provided with an injection hole. A nozzle needle is slidably fitted into the nozzle body, to open or close the injection hole of the nozzle body. The nozzle needle is provided with a needle pin which is insertable into the injection hole. The needle pin involves a taper section which is progressively slenderized toward the combustion chamber of an internal combustion engine. A plurality of axially extending flattened surface portions are formed on the outer peripheral wall of the taper section of the needle pin. As a result, the annular gap region defined between the outer peripheral wall of the needle pin and the inner peripheral wall of the injection hole entails wider and narrower gap sections.
REFERENCES:
patent: 4375274 (1983-03-01), Thoma et al.
patent: 4440348 (1984-04-01), Burgio di Aragona
Daihatsu Motor Company Limited
Kashnikow Andres
Weldon Kevin P.
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