Fuel injection system

Details Fuel injection system Fuel injection system

1997-04-22

1999-02-16

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

239 91, 239584, F02M 4702

Patent

active

058711546

ABSTRACT:
A fuel injection system comprises a pumping plunger slidable within a bore and arranged to supply fuel to an injector nozzle. A spill valve communicates with the bore to control the fuel pressure applied to the nozzle. The nozzle includes a valve member biased into engagement with a seating by a spring, the spring engaging a piston member at least part of the end of which remote from the spring is exposed to the fuel pressure in the bore. The spill valve includes a flow connection which communicates by way of a restrictor with a drain. The restrictor is formed by the piston member and cylinder within which the piston member is slidable.

REFERENCES:
patent: 4928886 (1990-05-01), Kronberger
patent: 4969600 (1990-11-01), Nicol
patent: 5335852 (1994-08-01), Muntean et al.
patent: 5538187 (1996-07-01), Mueller et al.
patent: 5632444 (1997-05-01), Camplin et al.
patent: 5673853 (1997-10-01), Crofts et al.

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