Control system including single line switches and method
AssigneeBaker Hughes, A Ge Company, LLC
InventorJoel D. Shaw
Life of this patent
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Abstract
A control system and method of controlling a control system includes a set of pressure-controlled devices having at least a first device and a second device movable between at least first and second positions, and a set of single line switches including at least a first switch and a second switch, each switch configured to move the pressure-controlled devices, respectively, between the first and second positions. The first device alternates between the first position and the second position with every position changing pressure pulse to the first switch, and the second device alternates between the first position and the second position with every two position changing pressure pulses to the first switch.
Claims23
A control system comprising
- a set of pressure-controlled devices including at least a first device and a second device, each device movable between at least first and second positions;
- a set of single line switches including at least a first switch and a second switch, each switch configured to move the pressure-controlled devices, respectively, between the first and second positions, the first device alternating between the first position and the second position with every position changing pressure pulse to the first switch, and the second device only alternating between the first position and the second position with every two position changing pressure pulses to the first switch;
- a primary supply line connected to a supply port of the first switch, the primary supply line configured to supply the position changing pressure pulses to the supply port and through a pathway in the first switch;
- and
- a connecting supply line arranged to fluidically connect the position changing pressures pulses passed through the pathway and out of the first switch to a supply port of the second switch.
A method of controlling a control system for pressure-controlled devices, the pressure-controlled devices including at least a first device and a second device, each device movable between at least first and second positions, the method comprising:
- connecting a first single line switch to the first device and a second single line switch to the second device;
- and,
- delivering position changing pressure pulses through a supply line to the control system, including delivering position changing pressure pulses to the first single line switch to alternatingly move the first device between the first and second positions with every position changing pressure pulse, and
- delivering position changing pressure pulses from the first single line switch to the second single line switch to alternatingly move the second device between the first and second positions with no more than every other position changing pressure pulse delivered to the first single line switch;
- wherein the first single line switch is interposed within a fluidic flowpath of the position changing pressure pulses between the second single line switch and the supply line.
Dependencies are inferred from the claim text.