Side Foot Mounts for Dual-Cylinder Rocking Piston Compressor Vibration Control
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Solution Overview
Problem
Dual-cylinder reciprocating compressors face challenges in minimizing noise and vibration, particularly in applications like oxygen concentrators where compact, lightweight designs are needed without compromising performance.
Innovation Solution
The implementation of side foot mounts with an optimized height range and axial placement relative to the connecting rod in a U-shaped housing configuration, which reduces vibration and noise by altering the compressor's stability and center of mass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional compressor mounting designs are used, then structural simplicity is maintained, but vibration and noise levels increase
Solution Approach 1:
The patent transitions from traditional bottom-mounted feet to side-mounted feet, changing the spatial dimension of the mounting structure. This dimensional change allows the mounting feet to be positioned laterally on the compressor housing rather than vertically at the base, fundamentally altering the vibration isolation geometry and reducing transmitted vibration and noise.
Solution Approach 2:
The mounting feet serve as intermediary elements between the compressor housing and the mounting surface. These feet incorporate vibration isolation properties and are positioned to intercept and dampen vibrational forces before they transmit to the supporting structure, thereby reducing noise and vibration propagation.
2Weight of moving object
If compact and lightweight design is implemented, then space and weight are reduced, but vibration control becomes more challenging
Solution Approach 1:
By relocating mounting feet from the vertical base to lateral sides of the compressor housing, the patent creates a wider base of support. This dimensional redistribution improves the moment of inertia and stabilizes the lightweight compact structure against vibrational forces, enabling effective vibration control without adding significant weight.
3Object-affected harmful factors
If side foot mounts with optimized height are used, then vibration and noise are reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent specifies an optimized height range for side foot mounts (0.5 to 1.5 times the distance from drive shaft axis to housing bottom) rather than a single fixed dimension. This parameter range provides a tolerance window that balances vibration reduction performance with manufacturability, allowing moderate variations in foot mount height without compromising noise control effectiveness.
Data Source
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AI summary
A duel-cylindet reciprocating rocking piston-type compiessoi is disclosed with side foot mounts resulting in reduced compressot vfbiation and noise. An optimum vertical height fbi the foot mounts as well as an optimum lateral ot axial position along the compressor body relative to the piston connecting rod are also disclosed. Specifically, the side foot mounts are mounted to the housing at a height falling in the range of 0 5 times the height of the drive shaft to about 1.5 times the height of the drive shaft Further, an elevated o-ring gland oi gasket is disclosed for sealing the heads to the valve plates Still further, and improved valve plate design is disclosed that includes substantially flat valve plates, monolithically connected together through a iaised central portion that defines tubes or passageways connecting the intake and output chambers associated with each cylinder The result is a compressor with a shorter vertical height, that is lighter and that produces less noise and vibration without compromising output