Systems and methods for controlling pressure of fluids
First Claim
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1. A system for controlling the setpoint pressure of a regulator, said system comprising:
- a setpoint pressure node;
a first valve having an inlet connected to receive a fluid and an outlet connected to said setpoint pressure node;
a second valve having an inlet connected to said setpoint pressure node and an outlet connected to atmosphere;
a third valve having an inlet connected to said setpoint pressure node and an outlet coupled to atmosphere, said third valve operative to automatically open in the event of a failsafe condition; and
control circuitry operative to selectively OPEN and CLOSE said first and second valves to control the pressure of fluid applied to said setpoint pressure node.
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Abstract
Systems and methods for using a dual-path fluid routing system that uses a flow restriction device to enhance temperature and pressure control of fluid are provided. Systems and methods for using a setpoint pressure control system to accurately control the setpoint pressure of a regulator are also provided.
71 Citations
12 Claims
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1. A system for controlling the setpoint pressure of a regulator, said system comprising:
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a setpoint pressure node; a first valve having an inlet connected to receive a fluid and an outlet connected to said setpoint pressure node; a second valve having an inlet connected to said setpoint pressure node and an outlet connected to atmosphere; a third valve having an inlet connected to said setpoint pressure node and an outlet coupled to atmosphere, said third valve operative to automatically open in the event of a failsafe condition; and control circuitry operative to selectively OPEN and CLOSE said first and second valves to control the pressure of fluid applied to said setpoint pressure node. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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Specification