Fuel injector having a swirl regulator

Fluid sprinkling – spraying – and diffusing – Flow deflecting or rotation controlling means – Fluid rotation inducing means upstream of outlet

Reexamination Certificate

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Details

C239S461000, C239S533300, C239S585100, C239S585500

Reexamination Certificate

active

06929195

ABSTRACT:
A fuel injector is provided which comprises a swirl generator and a swirl regulator. The swirl regulator comprises an upper housing mounted to an upper part of said body and a lower housing including a center aperture, said lower housing and said upper housing cooperatively defining a plurality of cavities; a rotating member including a center shaft and a plurality of vanes formed thereon, said center shaft being rotatably disposed in said center aperture of said lower housing and coupled to said swirl generator, said vane being disposed in said cavity such that said cavity is divided into a first chamber and a second chamber, said first chamber communicating with said fuel passageway and said second chamber communicating with the outside of said injector; a biasing member forcing said rotating member to rotate against a force acting on said vane from a pressure difference between said fuel passageway and the outside of said injector.

REFERENCES:
patent: 3937011 (1976-02-01), Caruel et al.
patent: 4015571 (1977-04-01), Stumpp
patent: 4264040 (1981-04-01), Saito
patent: 4827883 (1989-05-01), Khalighi et al.
patent: 4869429 (1989-09-01), Brooks et al.
patent: 5975433 (1999-11-01), Hasegawa et al.
patent: 2000314358 (2000-11-01), None

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