US 2003/0075619 A1 · Fuel injector having a swirl regulator

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.

Claims22

Dependent claims

A fuel injector including a main body and a swirl regulator disposed in an upper part of the main body, said swirl regulator comprising:

an upper housing that is mounted to said main body;
a lower housing including a center aperture;
a center shaft disposed in said aperture of said lower housing;
a vane supported by said center shaft, said vane being disposed between a lower part of said upper housing and an upper part of said lower housing;
and
a resilient spring connected to said center shaft such that said center shaft rotates according to fuel pressure.

3 more elements

Dependencies are inferred from the claim text.

Fuel injector having a swirl regulator

Life of this patent

Fuel injector having a swirl regulator

Life of this patent

Abstract

Claims22