Adjustable Boost Body Pressure Regulator for Faster Response
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Solution Overview
Problem
Pressure regulators often experience delays in responding to pressure changes due to sensing pressure at a location immediately downstream of the seat, which is typically high, leading to slower opening and inadequate response to mechanical droop.
Innovation Solution
A plug assembly with a tube extending through a boost body, aligning with a notch in the stem guide, allowing the pressure sense chamber to communicate with a location further downstream, enabling quicker response by sensing lower pressure, and an adjustable boost body that can be rotated to accommodate different orientations of the actuator casing and valve body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pressure sense chamber senses pressure at a location immediately downstream of the seat, then the pressure regulator can maintain stable pressure control, but the response time to pressure changes is delayed
Solution Approach 1:
The patent introduces a new spatial dimension for pressure sensing by extending the tube downstream along the flow path, moving the sensing location from immediately downstream to a farther downstream position. This dimensional extension allows the pressure sense chamber to sense lower pressures and respond more quickly to pressure changes while maintaining control stability.
Solution Approach 2:
The patent introduces a tube as an intermediary element that connects the pressure sense chamber to a downstream location in the fluid passageway. This intermediary structure enables the pressure sense chamber to sense pressure at a remote location, facilitating faster response to pressure changes without compromising the stability of pressure control.
2Device complexity
If the tube is positioned at a fixed orientation, then the pressure regulator structure is simple, but the regulator cannot accommodate different installation orientations
Solution Approach 1:
The patent makes the boost body rotatable relative to the stem guide, transforming the fixed tube orientation into a dynamic, adjustable configuration. This allows the tube to be positioned at different orientations to accommodate various installation scenarios while maintaining a relatively simple overall structure through the use of a single rotating component.
Solution Approach 2:
The rotatable boost body design provides multi-functionality by enabling the same pressure regulator to accommodate multiple installation orientations. The tube can be rotated to align with different notches in the stem guide, allowing the regulator to be installed in various orientations without requiring different tube configurations or additional components.
Data Source
AI summary
Pressure regulators with adjustable boost bodies are described herein. An example pressure includes a valve body defining a fluid passageway and an actuator casing coupled to the valve body, the actuator casing defining a pressure sense chamber and a channel between the pressure sense chamber and the fluid passageway in the valve body. The pressure regulator includes a plug assembly including a stem, a plug, and a stem guide. The stem guide has a flange with a notch. The plug assembly includes a boost body and a tube extending through the boost body. A first end of the tube is aligned with the notch and a second end of the tube is disposed in a downstream location relative to the seat such that the pressure sense chamber is in fluid communication with the downstream location. The boost body is rotatable with respect to the stem guide.