Unit type fuel injector for low lubricity, low viscosity fuels

Details Unit type fuel injector for low lubricity, low viscosity fuels Unit type fuel injector for low lubricity, low viscosity fuels

1987-08-20

1989-05-02

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

Plunger interconnected or mounted valve

239 88, 23953311, F02M 4702, F02M 6110

Patent

active

048260819

ABSTRACT:
A unit fuel injector is modified for use with low lubricity, low viscosity fuels by the following: providing a replaceable, deformable fluid seal between the brushing and the injector body; providing a drain conduit extending through both the bushing and the injector body which connects a fluid collecting cavity in the bore of the bushing to an exterior drain outlet; providing a pair of non-galling materials respectively on the plunger and bushing; providing diametrically symmetrical fuel ports on the bushing; providing a diametrically symmetrical metering groove arrangement on the plunger; and increasing the spray tip orifices to provide approximately a 20% increase in fuel discharge rate.

REFERENCES:
patent: 3566849 (1971-03-01), Frick
patent: 4567872 (1986-02-01), Roosa
patent: 4571161 (1986-02-01), LeBlanc et al.

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