Blower Airflow Diverting Unit for Heat Relief

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Solution Overview

Problem

Users of portable blowers in landscaping and lawn maintenance often face discomfort due to prolonged exposure to high air temperatures and flying insects while operating these tools.

Innovation Solution

A blower apparatus with an airflow diverting unit that redirects a portion of the airflow away from the user, providing a heat-relieving air stream and keeping dust particles and insects at a distance, is integrated into the blower apparatus. This unit includes an angular tube with a mounting flange and outlet aperture, allowing for adjustable airflow direction and control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If the blower apparatus operates in high air temperature environments, then the blowing function is effective, but the user experiences heat exposure discomfort

Engineering Contradiction:

Improveair temperatureVSAvoidheat exposure discomfort

Core Design Contradiction:

TemperatureVSObject-affected harmful factors

Solution Approach 1:

The airflow is segmented into two separate streams: a primary blowing stream directed at the work area through the nozzle, and a secondary cooling stream directed toward the user through the airflow diverting unit. This segmentation allows the system to simultaneously maintain effective blowing performance while providing heat relief to the user.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The airflow diverting unit acts as an intermediary component that intercepts a portion of the airflow generated by the blower and redirects it to provide cooling. This intermediary structure enables the system to address heat exposure discomfort without modifying the primary blowing function.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Productivity

If the blower apparatus operates in environments with flying insects and dust particles, then the blowing function is effective, but the user experiences insect and dust exposure

Engineering Contradiction:

Improveblowing function effectivenessVSAvoidinsect and dust exposure

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The airflow is divided into two functional streams: one directed at the work area to maintain productivity, and another directed toward the user to create a protective barrier against insects and dust particles, thereby reducing harmful exposure without compromising blowing effectiveness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The cooling airflow stream serves as a preliminary protective barrier that prevents insects and dust particles from reaching the user before they can cause discomfort or harm. This preemptive action reduces harmful exposure while the primary stream maintains productivity.

Inventive Principle:

Principle #9Preliminary anti-action

3Power

If all airflow is directed through the nozzle for optimal blowing performance, then the blowing function is maximized, but the user cannot redirect airflow for personal comfort

Engineering Contradiction:

Improveblowing performanceVSAvoidairflow direction control

Core Design Contradiction:

PowerVSEase of operation

Solution Approach 1:

The total airflow generated by the blower is automatically segmented into two streams based on the airflow diverting unit's configuration. A portion is directed through the nozzle for blowing performance, while another portion is redirected toward the user for comfort, eliminating the need for manual airflow division while maintaining both performance and user control.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The airflow diverting unit can be configured in different positions or angles, allowing dynamic adjustment of how the airflow is divided between the blowing stream and the cooling stream. This dynamic configuration enables users to optimize both blowing performance and personal comfort based on operating conditions.

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 solution enhances user comfort by providing a directed airflow that reduces heat exposure and minimizes the presence of dust particles and insects, improving operational conditions for users.

Implementation Method 1

a housing containing an airflow generating means, wherein the housing is physically coupled to an airflow discharge tube, such that an airflow generated by the airflow generating means is directed into one terminal end of the airflow discharge tube

Methodology Applied

Scientific EffectAirflow generation:

Implementation Method 2

The airflow discharge tube comprises an airflow diverting unit installed thereon to direct a portion of airflow in the direction other than the direction of the nozzle of the discharge tube

Methodology Applied

Scientific EffectAirflow diversion:

Data Source

PatentUS9445547B2Blower apparatus

Publication Date: 2016.09.20 DESANTI SUSAN

AI summary

A blower apparatus having an airflow diverting unit is described. The disclosed blower apparatus comprises a housing containing an airflow-generating means and an airflow discharge tube physically coupled with the housing. The airflow discharge tube has a first terminal end, a second terminal end, and an aperture protruding a portion of a side surface of the airflow discharge tube. The disclosed blower apparatus also comprises an airflow diverting unit attached to an outer surface of the airflow discharge tube.