Air-assist fuel injection nozzle

Details Air-assist fuel injection nozzle Air-assist fuel injection nozzle

1987-10-09

1988-10-11

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Injection nozzle having plunger or valve controlled by...

239 91, 239 95, 239 96, 23953314, F02M 4902, F02M 4510, F02M 4116, B05B 130

Patent

active

047765160

ABSTRACT:
An air-assist fuel injection nozzle has an externally actuated plunger journaled for axial movement in the cylinder provided in a nozzle body. The plunger tip contains a central stepped bore which slidably supports a spring bias injection needle valve therein. The plunger, when it is in a raised position, allows a valve controlled supply passage to deliver a metered quantity of liquid fuel into a chamber defined by the cylinder and the valve and of the plunger. The cylinder at the chamber end is closeable by a gas valve disk which in turn has a central aperture defining a discharge passage flow through which is controlled by the inward opening injection needle valve.

REFERENCES:
patent: 1589247 (1926-06-01), Scott
patent: 2714853 (1955-08-01), Schlamann
patent: 2872247 (1959-02-01), Shallenberg
patent: 2984230 (1961-05-01), Cummins
patent: 3632047 (1972-01-01), Ghougasian
patent: 4693420 (1987-09-01), Klomp
ASME publication entitled "The PT-ECON--A New Injector Concept for the D.I. Diesel to Improve Smoke and Fuel Consumption at Low Emission Levels", presented Apr., 1976.
Letter by K. L. Hulsing, subject: "Cummins New PT-ECON Fuel Injector", dated May 21, 1975.

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