Fuel injection system

Details Fuel injection system Fuel injection system

1990-06-29

1991-10-15

Kamen, Noah P.

Internal-combustion engines

Solid fuel

123446, F02D 1904

Patent

active

050564692

ABSTRACT:
A fuel injection system for alternate fuels such as coal-water slurry comprises a conventional fuel injection pump for supplying timed and metered pulses of diesel fuel to an injector assembly. The injector assembly includes a shuttle piston in a cylinder which is connected at one end by an injection line to the pump and at the other end by a passage to an injection nozzle. The alternate fuel is introduced into the injector assembly passage under pressure through a check valve between injection intervals. A bleed passage in the pump delivery valve provides a rapid pressure decay in the injection line following injection, permitting the shuttle piston to return to its starting position under the influence of the alternate fuel pressure. The timed and metered injection pulses are transferred by the shuttle piston from the diesel fuel to the alternate fuel to open the injection nozzle and inject the alternate fuel into an engine cylinder.

REFERENCES:
patent: 1216403 (1917-02-01), Bertsch
patent: 4052963 (1977-10-01), Steiger
patent: 4335684 (1982-06-01), Davis
patent: 4558664 (1985-12-01), Robben
patent: 4662315 (1987-05-01), Sommer

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