Method for obtaining a fuel injector for an...

Details Method for obtaining a fuel injector for an... Method for obtaining a fuel injector for an...

2005-04-21

2008-12-16

Fristoe, Jr., John K (Department: 3753)

Valves and valve actuation

Electrically actuated valve

Including solenoid

C251S064000

Reexamination Certificate

active

07464912

ABSTRACT:
A fuel injector for an internal-combustion engine comprises an injector body and an injection-control valve, which in turn comprises: an open/close element; an elastic thrust element for pushing the open/close element; and a solenoid actuator, which can be actuated for exerting an action countering the thrust exerted by the elastic element. The solenoid actuator is formed by a monolithic assembly obtained in a mould, in which there is injected, on a core and a coil coupled to one another, a plastic material, which defines, once it has solidified, a body for insulation of the core from the injector body and which forms, once it has solidified, a monolithic assembly with the core and the coil.

REFERENCES:
patent: 5185919 (1993-02-01), Hickey
patent: 5244180 (1993-09-01), Wakeman et al.
patent: 5289627 (1994-03-01), Cerny et al.
patent: 5341994 (1994-08-01), Wakeman
patent: 5918818 (1999-07-01), Takeda
patent: 5927614 (1999-07-01), Touvelle et al.
patent: 6012700 (2000-01-01), Johnson et al.
patent: 0 471 212 (1992-02-01), None
patent: 0 483 768 (1992-05-01), None

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