Pressure Reducer Assembly With Protected Compensation Venting
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Solution Overview
Problem
Existing pressure reducer assemblies are susceptible to contamination due to exposed pressure compensation holes, require specific geometric adaptations, and have limited maintenance intervals, making them unsuitable for universal application across different fluid application devices.
Innovation Solution
A pressure reducer assembly with a pressure compensation hole enclosed within the fluid outflow and inflow devices, allowing toolless and detachable mounting, and utilizing complementary threads for pressure compensation, preventing exposure to external contaminants and enabling universal retrofitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the pressure compensation hole is exposed to the surrounding environment, then the pressure reducer assembly can function with simple structure, but it becomes susceptible to contamination from dirt, sand, or foreign elements
Solution Approach 1:
The pressure compensation hole is nested within the inlet section or outlet section of the pressure reducer body, which are themselves nested within the fluid outflow device. This multi-level nesting protects the pressure compensation hole from external contaminants while maintaining its functional connectivity to the pressure reducer chamber.
Solution Approach 2:
The inlet section and outlet section act as intermediary structures that provide protected pathways for the pressure compensation hole. These intermediaries shield the critical pressure compensation function from direct exposure to the external environment while allowing the necessary pressure equalization to occur.
2Ease of operation
If the pressure compensation hole is exposed externally, then installation is simple, but the service life is reduced due to clogging and maintenance requirements
Solution Approach 1:
The pressure compensation hole is pre-protected by integrating it within the inlet or outlet section structure before the assembly is mounted to the application device. This preliminary protective arrangement prevents contamination from occurring in the first place, eliminating the need for future maintenance and extending service life while keeping the installation process simple.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The assembly provides a simple, durable, and cost-effective solution with extended maintenance intervals, ensuring consistent pressure output and protection against contamination, suitable for various fluid application devices without geometric modifications.
Implementation Method 1
a pressure compensation hole (340) connecting the pressure reducer chamber (320) and an outer surface (312) of the pressure reducer body (310)
Implementation Method 2
a spring element (334, 335) as the biasing means
Data Source
Figure 1
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AI summary
A pressure reducer assembly (300) for reducing a pressure of a fluid, preferably a liquid, more preferably water, comprising a pressure reducer body (310) defining at least a part of a pressure reducer chamber (320) along a central axis (X-X'), wherein the pressure reducer assembly (300) comprises an inlet section (322) and an outlet section (324) fluidly coupled with the inlet section (322), wherein the inlet section (322) is configured to allow an inflow of the fluid, and wherein the outlet section (324) is configured to allow an outflow of the fluid, a biasing means piston rod (332) having a center (Y) along the central axis (X-X'), connecting the inlet section (322) with the outlet section (324), and wherein the biasing means piston rod (332) is moveable with respect to the pressure reducer body (310), and a sealing element (336, 337) operatively coupled with the piston rod (332), wherein the sealing element (336, 337) is configured to form a sealing between an inner wall section (206, 207) of a fluid outflow device (200) and an outer surface (338) of the piston rod (332) at the outlet section (324), wherein the pressure reducer body (310) comprises a pressure compensation hole (340), wherein the pressure reducer hole (340) connects the pressure reducer chamber (320) and an outer surface (312) of the pressure reducer body (310), and wherein the pressure reducer assembly (300) further comprises a valve (328) at the inlet section (322), comprising a sealing seat (339) which is configured to selectively interact with an end of the biasing means piston rod (322) to allow and disallow a flow of fluid through the pressure reducer assembly (300). The pressure reducer assembly (300) is characterized in that the valve (328) is mounted to the pressure reducer body (310), and that the pressure reducer assembly (300) is configured to be, particularly toollessly, detachably mounted to the fluid outflow device (200) and a fluid inflow device (400) such that an air pressure inside of the pressure reducer chamber (320) is compensable via the pressure compensation hole (340) and complementary threads (202, 406) of the fluid outflow device (200) and the fluid inflow device (400).