Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating
Patent
1978-11-01
1980-11-11
Reeves, Robert B.
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Reciprocating
251337, B05B 132
Patent
active
042328306
ABSTRACT:
A high flow rate electromagnetic injector valve with a rapid response time is disclosed for utilization in a single point fuel injection system. Centrally bored end caps are fixed at the front and rear ends of a tubular injector body and a coil wound on a bobbin is disposed inside the body chamber between the end caps. The front end cap receives within its bore a valve assembly including a valve housing and a needle valve with attached armature reciprocally movable against a valve seat to obturate a metering orifice in the valve housing. The valve housing contains fuel inlets for the pressurized entry of fuel into the injector and the needle valve is ported to provide fluid communication to the armature to relieve pressure build-up. The rear end cap mounts within its bore a core member acting as a stator which extends through a central bobbin bore to form a controllable air gap adjacent the armature: the core member further contains internally an adjustment screw and ball member. The ball member and adjustment screw cooperate with a recessed closure spring positioned substantially within the armature to controllably bias the needle valve against the valve seat. Because of its recessed position, the force of the closure spring is applied substantially along the central axis of the injector valve and the ball member prevents torsional windup forces from being generated by the spring. O-ring seals for the bobbin bore are provided in compression between recesses in the bobbin and the slower contracting material of the front end cap and core member to produce extended cold temperature operation.
REFERENCES:
patent: 1504773 (1924-08-01), Marston
patent: 3042075 (1962-07-01), Pettibone
patent: 3241768 (1966-03-01), Croft
patent: 3731881 (1973-05-01), Dixon et al.
patent: 4007880 (1977-02-01), Hans et al.
patent: 4033507 (1977-07-01), Fromel et al.
Blatter Albert
Casey Gary L.
Claxton William B.
Miller John A.
Church Gene A.
Marvin William A.
Reeves Robert B.
The Bendix Corporation
Wells Russel C.
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