Compressor Valve Steel Dampening Ring
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Solution Overview
Problem
Existing compressor valve dampening systems, which often rely on multiple plates or springs, fail to effectively reduce the impact velocity of the valve plate during opening and closing, leading to potential damage and reduced valve life, especially when the valve plate does not move parallel to the valve seat.
Innovation Solution
A single steel ring is used as a dampening element, supported by either a wafer spring or a set of coil springs, allowing for a 'soft landing' of the valve plate on the valve guard by controlling the ring's travel and utilizing its greater mass relative to the plastic valve plate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a double dampening system with two plates is used, then the dampening effect is improved, but the device complexity increases
Solution Approach 1:
The invention extracts the essential dampening function from the complex double-plate system and implements it through a single dampening plate with optimized features. The single plate incorporates specific design elements that provide the necessary dampening effect without requiring multiple plates, thereby reducing device complexity while maintaining reliability.
Solution Approach 2:
The invention combines the dampening function and the valve plate structure into a single integrated component. By merging these functions, the patent eliminates the need for separate dampening plates while achieving effective impact reduction, thus simplifying the overall device structure.
2Area of stationary object
If the valve lift is increased to lower pressure drop, then the valve area is improved, but the opening impact increases
Solution Approach 1:
The invention implements beforehand cushioning by positioning the dampening plate to make contact with the valve plate before it reaches the guard plate. This prior cushioning action reduces the velocity and impact force of the valve plate, allowing for higher valve lifts that reduce pressure drop without causing excessive opening impact.
3Reliability
If mass dampening is applied to reduce opening impact, then the valve plate life is improved, but the device complexity increases
Solution Approach 1:
The invention applies parameter changes by optimizing the mass, dimensions, and material properties of a single dampening plate to achieve effective impact reduction. By carefully tuning these parameters, the patent achieves mass dampening effects that prolong valve plate life without requiring complex multi-component dampening systems.
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 solution provides a more efficient and durable dampening system that reduces the impact velocity of the valve plate, prolonging its life and preventing damage by ensuring a controlled and soft stop, even when the valve plate does not move parallel to the valve seat.
Implementation Method 1
a single spring loaded steel ring dampening system
Implementation Method 2
With mass dampening, the opening impact can be reduced
Implementation Method 3
the springs cushion the opening impact of the valve plate and initiate the closing motion of the valve plate
Data Source
AI summary
A steel dampening ring rests on a wafer spring in an annular groove in a compressor valve stop plate to dampen the action of the plastic valve plate to prolong the life of the valve.