Inline pressure regulating valve assembly with inlet pressure bias
AssigneeUnited Technologies Corporation
InventorsRobert Goodman, Zhijun Zheng, Michael D. Greenberg
Life of this patent
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Abstract
An assembly includes a first enclosed flexible pressure chamber. A first extension arm extends from a first endwall of the first enclosed flexible pressure chamber. A second enclosed flexible pressure chamber includes a second extension arm extending from a second endwall of the second enclosed flexible pressure chamber. A lever arm is disposed on a pivot. A first end of the lever arm is attached to the first extension arm and a second end of the lever arm is attached to the second extension arm. A variable restriction element is connected to the second end of the lever arm.
Claims18
An assembly comprising:
- a first enclosed flexible pressure chamber with a first extension arm extending from a first endwall of the first enclosed flexible pressure chamber, wherein the assembly is fluidly connected to a regulating valve with a regulating valve element, wherein the first flexible pressure chamber is fluidly connected to an inlet of the regulating valve;
- a second enclosed flexible pressure chamber with a second extension arm extending from a second endwall of the second enclosed flexible pressure chamber;
- a lever arm disposed on a pivot, wherein a first end of the lever arm is attached to the first extension arm, and wherein a second end of the lever arm is attached to the second extension arm;
- and
- a variable restriction element connected to the second end of the lever arm.
A method of regulating pressure of a fluid in an assembly, the method comprising:
- biasing a fluid inlet pressure of a regulating valve, wherein biasing the fluid inlet pressure comprises:
- receiving fluid in a first flexible pressure chamber;
- exerting a first force onto the first flexible pressure chamber from the fluid;
- actuating a lever arm attached to a first extension arm connected to the first flexible pressure chamber;
- actuating a pintle connected to the lever arm;
- adjusting an amount of the fluid released into an ambient environment from the assembly;
- changing a fluid servo pressure within a pressure chamber of the regulating valve;
- modulating a regulating valve element of the regulating valve;
- and
- adjusting a fluid outlet pressure of the fluid flowing out of an outlet of the regulating valve.
An assembly comprising:
- a regulating valve with an inlet;
- a controller fluidly connected to the inlet of the regulating valve, wherein the controller comprises:
- a first enclosed flexible pressure chamber;
- a second enclosed flexible pressure chamber fluidly connected to an outlet of the regulating valve;
- a lever arm disposed on a pivot;
- a first end of the lever arm, wherein the first end of the lever arm is connected to a first extension arm extending from a first endwall of the first enclosed flexible pressure chamber;
- a second end of the lever arm, wherein the second end of the lever arm is connected to a second extension arm extending from a second endwall of the second enclosed flexible pressure chamber;
- a pintle connected to the second end of the lever arm;
- and
- a solenoid valve fluidly connected to the pintle and to a pressure chamber of the regulating valve.
Dependencies are inferred from the claim text.