Fuel injectors for diesel engines

Details Fuel injectors for diesel engines Fuel injectors for diesel engines

1991-01-02

1992-07-28

Kamen, Noah P.

Internal-combustion engines

Solid fuel

F02D 1904

Patent

active

051333015

ABSTRACT:
Replenishment water is supplied to a coal-water slurry fuel injector between fuel releases, to resist clogging in the injector. The injector includes a cylindrical body having a needle valve in a central bore, and a fuel intake port which releases fuel into the engine through an opening in the side of the injector body. A nozzle having high pressure ducts is provided in an end of the body for releasing fuel into the engine. A clearance space is provided between the needle valve and the central bore for passage of the replenishment water into the injector. The replenishment water is forced into the nozzle and the high pressure ducts between releases of fuel. Lubricants can be added to the replenishment water, if desired. The replenishment water resists injector clogging by maintaining the fluidity of the coal-water slurry and purging dried coal particles.

REFERENCES:
patent: 4782794 (1988-11-01), Hsu et al.
patent: 4825842 (1989-05-01), Steiger
patent: 4856713 (1989-08-01), Burnett
patent: 4862837 (1989-09-01), Holmes

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