Internal filter for a fuel injector

Internal-combustion engines – Charge forming device – Fuel injection system

Reexamination Certificate

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Details

C210S429000

Reexamination Certificate

active

07434567

ABSTRACT:
A fuel injector including a filter30provided within the tip portion12of the injector body10, down stream of the fuel inlet port14and upstream of the spray aperture14. The filter30is in the form of a hollow truncated cone with a base region32having an outer diameter dimensioned to be a press fit against the inner sides of the tip portion12such that the filter is a press fit within the tip portion. The top or upper region of the cone terminates in an aperture34through which the pintle16passes, the aperture having an inner diameter dimensioned to be a close sliding fit over the pintle16.

REFERENCES:
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patent: 2003/0052052 (2003-03-01), Boast et al.
patent: 2003/0168532 (2003-09-01), Maier
patent: 2007/0057095 (2007-03-01), Bayer et al.
patent: 2007/0095745 (2007-05-01), Sebastian

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