Loosefill Insulation Blowing Machine Noise Reduction

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing insulation blowing machines for loosefill insulation materials operate at elevated sound levels due to motors, shredding mechanisms, and rotary valves, which can be detrimental to efficiency and user experience.

Innovation Solution

A loosefill insulation blowing machine design featuring a shredding chamber with low-speed shredders and an agitator, coupled with a blower for airstream distribution, and a removable front access assembly for easy maintenance, reduces noise and improves operational efficiency.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If traditional insulation blowing machines use high-speed motors, shredding mechanisms, and rotary valves, then the insulation material can be effectively processed and distributed, but the sound level increases to harmful levels

Engineering Contradiction:
Improveinsulation material distribution efficiencyVSAvoidnoise level
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces traditional high-speed mechanical shredding mechanisms with a low-speed high-torque system that uses a auger and conditioning elements to process insulation material. This substitution reduces noise-generating mechanical impacts while maintaining processing effectiveness through controlled material movement and conditioning.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the operating parameters of the shredding system by reducing rotational speed and increasing torque output. This parameter change allows the system to process insulation material effectively at lower speeds, thereby reducing noise levels while maintaining productivity through optimized material flow and conditioning mechanisms.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the front panel is fixed to protect internal components, then component safety is improved, but accessibility for maintenance and repair deteriorates

Engineering Contradiction:
Improvecomponent protectionVSAvoidcomponent accessibility
Core Design Contradiction:
ReliabilityVSEase of repair

Solution Approach 1:

The patent divides the front panel into a fixed portion and a removable access assembly portion. The access assembly can be detached to expose internal components for maintenance while the fixed portion maintains structural integrity and component protection. This segmentation allows simultaneous achievement of protection and accessibility.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent implements a dynamic front panel system that transitions between a closed protective state and an open accessible state. The removable access assembly allows the panel configuration to change based on operational needs, providing component protection during operation and easy access during maintenance.

Inventive Principle:
Principle #15Dynamics

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 machine effectively conditions and distributes loosefill insulation material with reduced noise levels, enhancing operational efficiency and user convenience by allowing for easy inspection and maintenance.

Implementation Method 1

The shredding chamber including a plurality of shredders for shredding, picking apart, and conditioning the loosefill insulation material

Methodology Applied
Scientific EffectMechanical Force: Mechanical Force

Implementation Method 2

A discharge mechanism is mounted to receive the conditioned loosefill insulation material exiting the shredding chamber and to distribute the conditioned loosefill insulation material into an airstream

Methodology Applied
Scientific EffectPneumatic transport: Entrainment

Data Source

PatentUS12024903B2Loosefill insulation blowing machine
Publication Date: 2024.07.02 OWENS CORNING INTELLECTUAL CAPITAL LLC
  • US12024903B2 patent drawing
  • US12024903B2 patent drawing
  • US12024903B2 patent drawing

AI summary

A machine for distributing material from a package of compressed loosefill insulation material is provided. The machine includes a lower unit having a front panel. A shredding chamber is bounded on one side by the front panel and the shredding chamber receives compressed loosefill insulation material from a source of compressed loosefill insulation material. The shredding chamber including a plurality of shredders for shredding, picking apart, and conditioning the loosefill insulation material. A discharge mechanism is mounted to receive the conditioned loosefill insulation material exiting the shredding chamber and to distribute the conditioned loosefill insulation material into an airstream. A removable front access assembly covers a portion of the front panel of the lower unit and includes a control panel having a plurality of control devices. Removal of the removable front access assembly makes the plurality of shredders and the discharge mechanism within the lower unit accessible for inspection, replacement, or repair.