Electromagnetic fuel injector with central air blow and poppet v

Details Electromagnetic fuel injector with central air blow and poppet v Electromagnetic fuel injector with central air blow and poppet v

1991-01-07

1992-06-09

Nelli, Raymond A.

Internal-combustion engines

Charge forming device

Auxiliary air or gas used to inject fuel

F02M 2300

Patent

active

051197928

ABSTRACT:
A fuel injection mechanism for a two-stroke engine has two valve assemblies controlled by two solenoid assemblies. One solenoid assembly is provided for controlling the quantity of fuel to be injected into the fuel chamber, and the other solenoid assembly includes a main solenoid for controlling the opening of a main fuel injection valve at an appropriate time, whereby fuel pre-stored in the fuel chamber is atomized and injected by a flow of high-pressure air. The main fuel injection valve is formed in a mushroom shape, wherein its middle portion is hollow and provides a passage for compressed air. The flow of compressed air, in two streams, is used for the cylinder head injection to improve an injection spray effect, to shorten the time of cleaning the fuel injector and to simplify the structure.

REFERENCES:
patent: 4754739 (1988-07-01), Czwienczek et al.
patent: 4794901 (1989-01-01), Hong et al.
patent: 4899714 (1990-02-01), Schechter et al.
patent: 4986247 (1991-01-01), Kushiba et al.
patent: 4993394 (1991-02-01), McKay et al.

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