Gas solenoid valve
AssigneeCKD Controls Limited
InventorsKatsumasa Shimura, Tetsuro Nakamura
Life of this patent
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Abstract
A gas solenoid valve comprising a magnetic circuit formed with a fixed iron core, magnets and a magnetic member; a coil-holder movably provided with respect to the outer periphery of the fixed iron core and having a magnetic coil wound around itself; a sleeve accommodated within the magnets and spaced apart from the outer periphery of the fixed iron core for a predetermined distance; an actuating portion formed with the fixed iron core; the fixed iron core, the magnets and a magnetic member all fixedly covered with a molding resin from outside; and a governing portion engaged with the actuating portion.
Claims16
A gas solenoid valve comprising:
- a fixed iron core extending in a longitudinal direction;
- at least one magnet extending in said longitudinal direction around said fixed iron core and spaced therefrom by a predetermined distance;
- magnetic member means for completing a magnetic circuit with said fixed iron core and said at least one magnet;
- a molded resin coating disposed on said fixed iron core, said at least one magnet and said magnetic member means;
- a sleeve interposed between all of said at least one magnet and said fixed iron core so as to block any resin from interfering with movement of a coil-holder;
- said coil-holder slidably disposed between said sleeve and said fixed iron core;
- magnetic coil means disposed on said coil-holder for causing said coil-holder to move in said longitudinal direction in response to current applied to said magnetic coil means;
- and
- valve means connected to said coil-holder for regulating flow of a gas into said solenoid valve in response to actuation of said magnetic coil means.
A gas solenoid valve comprising:
- a housing;
- a fixed iron core extending in a longitudinal direction;
- at least one magnet extending in said longitudinal direction around said fixed iron core and spaced therefrom by a predetermined distance;
- magnetic member means for completing a magnetic circuit with said fixed iron core and said at least one magnet;
- a molded resin coating disposed on said fixed iron core, said at least one magnet and said magnetic member means to form an assembly thereof, said assembly being disposed on said housing;
- a sleeve interposed between all of said at least one magnet and said fixed iron core so as to block any resin from interfering with movement of a coil-holder;
- said coil-holder slidable in said longitudinal direction and disposed between said sleeve and said fixed iron core;
- magnetic coil means disposed on said coil-holder for causing said coil-holder to move in said longitudinal direction a distance which is proportional to an amount of current applied to said magnetic coil means;
- an inlet in said housing for admitting a gas therein;
- and
- valve means in fluid communication with said inlet and connected to said coil-holder for opening and closing said inlet in response to current applied to said magnetic coil means.
Dependencies are inferred from the claim text.