Fuel injector tip for control of fuel delivery

Details Fuel injector tip for control of fuel delivery Fuel injector tip for control of fuel delivery

2005-07-19

2005-07-19

Hwu, Davis (Department: 3752)

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

C239S533200, C239S533120, C239S585300, C239S585500, C239S088000

Reexamination Certificate

active

06918549

ABSTRACT:
An apparatus and method for injecting fuel into a cylinder of an engine which includes a fuel injector and a tip located on the fuel injector. The tip and fuel injector are located about a common longitudinal axis and includes a sac portion having a sac chamber, an outer sac surface, and at least one nozzle passage extending from an inner end located in the sac chamber to an outer end located at the outer sac surface, the at least one nozzle passage being at a fixed angle from the longitudinal axis along a central axis. The tip also includes an end surface located substantially adjacent to and parallel with the at least one nozzle passage and extending beyond the outer end of the at least one nozzle passage, and a curvilinear surface located on at least one of the end surface and the outer sac surface and configured such that a portion of fuel being injected through the at least one nozzle passage is directed to follow the curvilinear surface away from the central axis.

REFERENCES:
patent: 5029759 (1991-07-01), Weber
patent: 5037031 (1991-08-01), Campbell et al.
patent: 5392745 (1995-02-01), Beck
patent: 5899389 (1999-05-01), Pataki et al.
patent: 6029913 (2000-02-01), Stroia et al.
patent: 2198785 (1988-06-01), None

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