Compressor Dampening System for Portable Gas Source
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Solution Overview
Problem
Existing portable oxygen concentrators and ventilators face limitations in providing combined supplemental oxygen and ventilation therapy due to insufficient gas pressure and volume, and they often generate excessive noise from compressor vibrations.
Innovation Solution
A portable gas source (PGS) with an integrated compressor and a unique compressor dampening system, utilizing resilient bellows, side bands, and a discharge tube to effectively dampen compressor vibrations along multiple axes, thereby reducing noise and optimizing spatial efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a portable compressor is used to provide pressurized gas for ventilation therapy, then the system becomes portable and mobile, but the compressor generates excessive vibrations and noise
Solution Approach 1:
A vibration isolation mount is introduced as an intermediary component between the compressor and the housing. This mount acts as a mediator that absorbs and dampens vibrations generated by the compressor, preventing them from being transmitted to the housing and radiated as noise, while allowing the compressor to continue operating portably
Solution Approach 2:
The vibration isolation mount utilizes flexible materials and compliant structures to isolate vibrations. The flexible nature of the mount allows it to deform and absorb vibrational energy, reducing the transmission of vibrations from the compressor to the housing, thereby reducing noise while maintaining portability
2Device complexity
If the compressor is mounted directly to the housing for structural support, then the system is simple and stable, but vibrations from the compressor increase noise levels
Solution Approach 1:
The vibration isolation mount serves as an intermediary between the compressor and housing, providing a compliant connection that maintains structural support while filtering vibrations. This mediator approach adds minimal complexity while effectively reducing noise transmission
3Object-generated harmful factors
If additional dampening components are added to reduce compressor vibrations, then noise is reduced, but the device becomes more complex and larger
Solution Approach 1:
The vibration isolation mount is designed to perform multiple functions simultaneously: it provides structural support for the compressor, isolates vibrations, and maintains the compact form factor. This multi-functionality reduces the need for separate dampening components, thereby reducing overall system complexity while effectively reducing noise
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 PGS achieves effective vibration dampening and noise reduction, enabling the delivery of high oxygen content gas at sufficient pressures and volumes for combined ventilation and supplemental oxygen therapy, while maintaining a compact and lightweight design.
Implementation Method 1
resilient first and second bellows which are each operatively interposed between the compressor and the housing. Each of the first and second bellows is adapted to dampen movement of the compressor along multiple axes
Implementation Method 2
resilient first and second bellows
Implementation Method 3
a source of pressurized ventilation gas to operate... the portable, wearable ventilator generally receives its ventilation gas from a pressurized gas cylinder or a portable compressor
Data Source
AI summary
A portable gas source (PGS) comprising a housing and a compressor disposed within the housing. The compressor includes a first air inlet, a second air inlet, and an air outlet. The PGS further comprises a compressor dampening system including resilient first and second bellows which are each operatively interposed between the compressor and the housing and adapted to dampen movement of the compressor along multiple axes, with the first and second bellows at least partially defining respective ones of the first and second air inlets, and each fluidly communicating with ambient air. The dampening system also includes, among other structures, resilient first and second side bands which are cooperatively engaged to and extend between the compressor and the housing in opposed relation to each other, each of the first and second side bands likewise being adapted to dampen movement of the compressor along multiple axes.