초록 ▼

A novel irrigation valve having a single central inlet and a plurality of radially located outlets each covered by a sliding disk valve. Each disk valve is manually operable. and in automatic mode is operated by the interference action of an innovative indexing mechanism which uses the hydraulic pre

A novel irrigation valve having a single central inlet and a plurality of radially located outlets each covered by a sliding disk valve. Each disk valve is manually operable. and in automatic mode is operated by the interference action of an innovative indexing mechanism which uses the hydraulic pressure of the inlet for its operation. a single three-way solenoid valve is energized to actuate a piston within the indexing mechanism while a pin-teeth engagement of a cylinder-indexer assembly converts the linear motion of a piston rod into a rotary motion of an indexing arm. A battery operated timer controls the time intervals between each incremental rotation of an indexing arm in sequence until it is returned to its home position. The housing of the valve is compact and of low profile, thereby simplifying its manufacturing, assembling, installation and maintenance and reducing cost. Although suitable for use in controlling the distribution of water in an automatic irrigation circuit, it can be modified and be adapted for control of variety of liquids in fluid handling applications.

대표청구항 ▼

[ I claim:] [1.]1. A device for regulating the flow of fluid, includingan indexing mechanism mounted to rotate in a step wise fashion in response to fluid entering the indexing mechanism, said fluid draining from the indexing mechanism after rotating through a step, andan electronically actuated val

[ I claim:] [1.]1. A device for regulating the flow of fluid, includingan indexing mechanism mounted to rotate in a step wise fashion in response to fluid entering the indexing mechanism, said fluid draining from the indexing mechanism after rotating through a step, andan electronically actuated valve that, upon being actuated by an electrical signal, opens for a specific time period to allow fluid into the indexing mechanism to move the indexing mechanism though one step.