Solenoid actuated pilot valve for irrigation system valve
AssigneeHunter Industries, Inc.
InventorMichael L. Clark
Life of this patent
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Abstract
A solenoid actuated pilot valve includes a pilot valve housing defining a pilot valve chamber and a solenoid. The solenoid includes and end cap connected to the pilot valve housing, a reciprocable plunger, and a piston having a shaft with a first end connected to and end of the plunger and a second end connected to a piston head. The end cap has a bore through which the shaft of the piston reciprocates and a first port separate from the bore. A first seal on a first side of the piston head is provided for sealing a first end of the first port. A second seal on a second side of the piston head is provided for sealing a first end of a second port in the pilot valve housing.
Claims10
A three-way solenoid actuated pilot valve, comprising:
- a solenoid having a piston with a laterally extending piston head connected to a shaft longitudinally reciprocable through a bore in an end of the solenoid and a first port with a first end opening through the end of the solenoid laterally spaced from the bore so that it is sealed and unsealed by the piston head upon reciprocation of the piston;
- and
- a pilot valve housing for receiving the end of the solenoid and defining a pilot valve chamber between the end of the solenoid and the pilot valve housing, the pilot valve housing having a second port that communicates with the pilot valve chamber and is located so that it is sealed and unsealed by the piston head upon reciprocation of the piston, and a third port formed in the pilot valve housing that also communicates with the pilot valve chamber.
A three-way solenoid actuated pilot valve, comprising:
- a solenoid having a longitudinally extending member with a laterally projecting member, the longitudinally extending member being reciprocable through a bore in an end of the solenoid, and the solenoid having a first port with a first end opening through the end of the solenoid laterally spaced from the bore so that it is sealed and unsealed by the laterally projecting member upon reciprocation of the longitudinally extending member;
- and
- a pilot valve housing for receiving the end of the solenoid and defining a pilot valve chamber between the end of the solenoid and the pilot valve housing, the pilot valve housing having a second port that communicates with the pilot valve chamber and is located so that it is sealed and unsealed by the laterally projecting member upon reciprocation of the longitudinally extending member, and a third port formed in the pilot valve housing that also communicates with the pilot valve chamber.
Dependencies are inferred from the claim text.