Control line reducing hydraulic control system and control valve therefor

摘要

A control valve includes a housing, an inlet port at the housing, a device port at the housing, a valve port at the housing, and a spool disposed at the housing, the spool initially connecting the inlet port to the device port and subsequently to a pressure event connecting the inlet port to the valve port. An actuation system includes a plurality of control valves, each valve being addressable and conditionable to communicate with one of a device and another control valve, and a plurality of devices each in operable communication with one of the plurality of control valves.

主权项

1. An actuation system consisting of:
a first control line; a plurality of control valves connected to the first control line, each valve being addressable and conditionable to selectively supply hydraulic fluid pressure individually to each of a device and another one of the plurality of control valves; a plurality of the devices each in operable communication with one of the plurality of control valves; a second control line in communication with the plurality of devices and operatively arranged for pressurizing the plurality of devices oppositely with respect to the first control line; and a third control line in communication with the plurality of control valves and operatively arranged to reset the plurality of control valves to an initial configuration; wherein each of the plurality of control valves is initially conditioned to supply hydraulic fluid pressure to an associated one of the plurality of devices and after being first addressed is automatically conditioned to supply hydraulic fluid pressure to another one of the plurality of control valves and each of the plurality of control valves once conditioned to communicate with the another one of the plurality of valves remains conditioned to communicate with the another one of the plurality of valves until a reset of each valve so conditioned.