Fluid sprinkling – spraying – and diffusing – With system fluid relief or return to supply – Recirculation within nozzle
Patent
1980-06-11
1982-12-28
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
With system fluid relief or return to supply
Recirculation within nozzle
239488, 23953312, 239585, F02M 6106
Patent
active
043657460
ABSTRACT:
A swirl injection valve includes: a nozzle body including a hollow cylindrical body having a hole and a bottom portion on which a nozzle port and a valve seat are formed; a needle valve member, slidably inserted and reciprocally moved within the hole of the nozzle body, having a tip portion for seating on the valve seat and controlling the opening and closing of the nozzle port; a swirl chamber formed upstream of the nozzle port and defined between an inner wall of the nozzle body and an outer wall of the needle valve member; a fuel supply passage formed within the nozzle body and connected to a fuel supply source; and inclined passage comprising at least one short passage connected to the swirl chamber and the fuel supply passage and tangentially opened to the swirl chamber at a predetermined inclined angle. The fuel is tangentially supplied from the inclined passage to the swirl chamber without pressure loss. Thus the intense swirling flow of the fuel is formed within the swirl chamber and injected from the nozzle port, thereby stably and efficiently injecting the fuel at a predetermined spray angle into extremely fine particle.
REFERENCES:
patent: 1952816 (1934-03-01), Mock
patent: 2407915 (1946-09-01), Ball
patent: 3241768 (1966-03-01), Croft
patent: 3958757 (1976-05-01), Happel et al.
patent: 4060199 (1977-11-01), Brune et al.
Kawamura Kiyomi
Muto Norio
Saito Akinori
Tanasawa Yasusi
Kabushiki Kaisha Toyota Chuo Kenkyusho
Kashnikow Andres
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