Portable Generator-Compressor Mounting for Vibration Isolation

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Solution Overview

Problem

Welding systems that require both welding current and compressed air often consist of independent units, leading to increased setup and transportation time, labor, and maintenance costs due to duplication of parts.

Innovation Solution

A portable engine-driven welding generator and air compressor system integrated into a single unit, where the engine drives both the generator and rotary screw compressor, with a resilient or adjustable connection to isolate components and improve serviceability and reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If welding current and compressed air are provided by independent units, then each unit can be optimized for its specific function, but setup and transportation time increase and maintenance costs rise due to duplication of parts

Engineering Contradiction:
Improvefunctional optimizationVSAvoidsetup and transportation time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent combines the welding generator and air compressor into a single integrated unit with a common engine, eliminating the need for separate independent units. This merging reduces setup and transportation time while maintaining functional optimization through dedicated components for each function.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integrated unit serves multiple functions simultaneously - generating welding current and providing compressed air - through a universal engine platform that drives both the generator and compressor. This multi-functionality eliminates duplication of power sources while optimizing each specific function through specialized components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of repair

If welding current and compressed air are provided by independent units, then each unit can be independently maintained, but maintenance and repair costs increase due to duplication of parts

Engineering Contradiction:
Improveindependent maintenanceVSAvoidmaintenance costs
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

By merging the welding generator and air compressor into a single unit with shared components (engine, fuel system, exhaust), the patent eliminates duplication of parts. This reduces maintenance and repair costs while maintaining ease of repair through modular design that allows independent servicing of the generator and compressor sections.

Inventive Principle:
Principle #5Merging (Combining)

3Power

If the engine drives both the generator and rotary screw compressor through direct coupling, then power transmission is efficient, but vibrations and misalignment affect system reliability

Engineering Contradiction:
Improvepower transmission efficiencyVSAvoidsystem stability
Core Design Contradiction:
PowerVSReliability

Solution Approach 1:

The patent introduces a resilient connection as an intermediary element between the engine and the rotary screw compressor. This mediator transmits power efficiently while accommodating vibrations and misalignment, thereby maintaining both power transmission efficiency and system reliability.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The resilient connection changes the mechanical parameters of the power transmission system by introducing flexibility and damping. This allows the system to maintain efficient power transmission while adapting to vibrations and misalignment through elastic deformation and shock absorption.

Inventive Principle:
Principle #35Parameter changes

4Stability of the object's composition

If the components are rigidly mounted to maximize structural stability, then the system is mechanically stable, but vibrations and misalignment reduce reliability

Engineering Contradiction:
Improvestructural stabilityVSAvoidoperational reliability
Core Design Contradiction:
Stability of the object's compositionVSReliability

Solution Approach 1:

The patent changes the mounting parameters from rigid to resilient connections. This allows the system to maintain structural stability through proper structural design while improving operational reliability by accommodating vibrations and misalignment through elastic deformation and shock absorption.

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent converts the harmful effect of vibrations and misalignment into a benefit by using resilient connections that absorb and dampen these disturbances. The potential harm from rigid mounting is transformed into a protective mechanism that enhances operational reliability.

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

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 integrated system reduces setup and maintenance time, provides continuous outputs of welding current and compressed air without intermediate storage, and enhances reliability through load priority control and resilient mounting to mitigate vibrations and misalignment.

Implementation Method 1

resilient mounting to mitigate vibrations and misalignment

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS11192200B2Portable generator and air compressor mounting arrangement
Publication Date: 2021.12.07 ILLINOIS TOOL WORKS INC
  • US11192200B2 patent drawing
  • US11192200B2 patent drawing
  • US11192200B2 patent drawing

AI summary

A system, in one embodiment, may include a chassis, an engine coupled to the chassis, a generator coupled to the engine, and a rotary screw compressor coupled to the chassis independent from the engine. The engine may be configured to drive both the generator and the rotary screw compressor. A method, according to another embodiment, may include isolating a rotary air compressor from an engine and a generator in a common chassis. The isolating may include separately mounting the rotary air compressor and the engine with a resilient or distance adjustable connection in between. The isolating also may include resiliently mounting the engine, or the rotary air compressor, or both.