Compressor Valve Plate Structure for Noise Reduction and Fault Detection
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Solution Overview
Problem
Conventional compressor discharge valve devices with elastic plates of higher elastic force make it difficult to open the valve, leading to undetectable attachment faults during product performance inspection, as the packing can function as an alternative to the valve plate, masking the failure visually.
Innovation Solution
Incorporating a stress suppression member with a valve exposing portion between the valve plate and valve receiver, which reduces noise and allows for visual detection of valve plate attachment failures by exposing the valve plate through a hole or cut-out, facilitating detection during product inspection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a stress suppression member (packing) having an equal shape to the valve plate is interposed between the valve plate and the valve receiver, then impact sound is reduced, but attachment fault detection becomes difficult
Solution Approach 1:
The stress suppression member is divided into two functional regions: a first region with the same shape as the valve plate for noise reduction, and a second region extending beyond the valve plate perimeter to expose the valve plate edge. This segmentation allows the member to simultaneously reduce impact sound while enabling visual detection of attachment faults.
Solution Approach 2:
Different regions of the stress suppression member have different functions: the first region (matching valve plate shape) provides noise reduction by cushioning impacts, while the second region (extending beyond valve plate) provides detection capability by exposing the valve plate edge for visual inspection. This local quality differentiation resolves the contradiction between noise reduction and fault detection.
2Object-affected harmful factors
If the stress suppression member completely covers the valve plate, then noise reduction is maximized, but visual inspection capability is lost
Solution Approach 1:
The stress suppression member is segmented into a first region that covers the valve plate for noise reduction and a second region that intentionally leaves the valve plate edge exposed. This segmentation ensures that while most of the valve plate is covered for noise reduction, the perimeter exposure maintains visual inspection capability.
Solution Approach 2:
Instead of completely covering the valve plate (excessive action for noise reduction), the stress suppression member is designed to partially cover it, extending only to a certain distance from the center. This partial action maintains the beneficial noise reduction effect while preserving the ability to visually detect attachment faults through the exposed valve plate edge.
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
Ensures accurate detection of valve plate attachment failures, preventing compressed air accumulation and pressure increase issues, while maintaining reduced noise and compression efficiency by regulating the valve opening effectively.
Implementation Method 1
the packing in this structure can reduce an impact sound generated when the valve plate made of a metal (such as an SUS material) is hit against the valve receiver when the valve plate is opened/closed at the time of operation of the compressor
Data Source
AI summary
According to the present invention, there is provided a compressor including: a piston reciprocated in a cylinder; a valve seat plate provided with a port through which a fluid passes along with the reciprocation of the piston; a valve provided in the valve seat plate to open/close the port; a valve receiver regulating the degree of opening of the valve; and a stress suppression member provided between the valve and the valve receiver, wherein the stress suppression member includes a valve exposing portion exposing the valve.