Threaded Flange Pressure Reducer for Compensation Hole Clog Prevention
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Solution Overview
Problem
Existing pressure reducers are prone to clogging due to exposure of the pressure compensation hole to the external environment, which impairs the mobility of the piston rod and diaphragm, leading to functional safety issues and inefficient operation.
Innovation Solution
A pressure reducer design where the pressure compensation hole is enclosed by a flange with threaded portions, preventing direct exposure to foreign elements and ensuring unobstructed mobility of the piston rod and diaphragm, thus preventing clogging and ensuring efficient operation without additional filter components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the pressure compensation hole is exposed to the external environment, then the pressure reducer can function normally with mobility of piston rod and diaphragm, but the pressure compensation hole becomes vulnerable to clogging by foreign elements
Solution Approach 1:
The patent introduces an intermediary structure (the threaded portion of the pressure reducer body) that mediates between the external environment and the pressure compensation hole. The threads act as a physical barrier that allows fluid passage while blocking solid foreign elements, thus protecting the pressure compensation hole from clogging while maintaining its functional accessibility
Solution Approach 2:
The threaded portion structure acts as a flexible barrier that allows fluid to pass through while preventing solid particles from entering the pressure compensation hole. The thread geometry provides a selective filter that maintains pressure compensation functionality while protecting against foreign element intrusion
2Object-affected harmful factors
If a filter screen is added to protect the pressure compensation hole, then clogging is prevented, but the device complexity increases with additional components
Solution Approach 1:
The patent merges the protective function with the existing structural component (the pressure reducer body's threaded portion). Instead of adding a separate filter screen, the protection function is integrated into the threads that are already part of the pressure reducer body, thus preventing clogging without increasing device complexity
Solution Approach 2:
The threaded portion serves multiple functions: it provides the structural connection for the cap, enables assembly/disassembly, and simultaneously acts as a protective barrier against foreign elements. This multi-functionality eliminates the need for dedicated filter components while maintaining protection
Data Source
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AI summary
A pressure reducer (100) for reducing a fluid pressure includes a pressure reducer body (110) defining at least one pressure reducer chamber (120). The pressure reducer chamber (120) includes an inlet section (122) and an outlet section (124) fluidly coupled with the inlet section (122). The pressure reducer chamber (120) further includes a spring-operated piston rod (121) and a sealing element (128) operatively coupled with the piston rod (121). A flange (132) is sealing coupled with the pressure reducer body (110). The pressure reducer body (110) defines a pressure compensation hole (114). The pressure reducer (100) is characterized in that the pressure reducer body (110) has a first threaded portion (112), and the flange (132) has a second threaded portion (134) such that the pressure reducer body (110) and the flange (132) are threadedly coupled. The pressure compensation hole (114) is disposed in the first threaded portion (112) of the pressure reducer body (110) such that the flange (132) is adapted to enclose the pressure compensation hole (114) when the flange (132) is coupled to the pressure reducer body (110).