Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating
Patent
1978-09-13
1980-08-19
Reeves, Robert B.
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Reciprocating
251 84, B05B 130
Patent
active
042180210
ABSTRACT:
An electromagnetic fuel injector for use in a spark ignition internal combustion engine and, in particular, for use in a low pressure, throttle body fuel injection system for such an engine. The fuel injector includes an electromagnet actuated valve having a semi-spherical seating surface thereon for cooperation with an annular valve seat at one end of a nozzle assembly for controlling the injection flow of fuel from the injector and a flat surface for abutment against the end of the armature of an electromagnet. This valve is biased toward a closed position in seating engagement against the valve seat by a spring associated with the armature and is biased toward an open position relative to the valve seat by an opposed spring upon energization of the electromagnet. The electromagnet structure includes a small diameter axial extending small diameter guide pin slidably received in a guide bore of the armature for reducing sliding friction of the armature. In a preferred enbodiment the nozzle assembly is threaded into the injector body to abut against a deformable abutment shoulder whereby the stroke of the armature-valve can be adjusted.
REFERENCES:
patent: 1504773 (1924-08-01), Marston
patent: 1664612 (1928-04-01), French
patent: 3048188 (1962-08-01), Hunter
patent: 3126158 (1964-03-01), Dreisin
patent: 3653630 (1972-04-01), Ritsema
patent: 3731881 (1973-05-01), Dixon et al.
Church Gene A.
General Motors Corporation
Krein A. N.
Reeves Robert B.
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