Pneumatic Tool Sequential Air Flow Cooling
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Solution Overview
Problem
Conventional pneumatic tools generate excessive heat during rapid spinning, which is not effectively dissipated, leading to inefficiencies and potential damage.
Innovation Solution
The pneumatic tool incorporates a sequential air flow path through channels and chambers, including an air outlet chamber, forward channel, washer channel, shaft channel, and bushing channel, to utilize compressed air for continuous heat dissipation by flowing air through these channels, thereby cooling the transmission set.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the transmission shaft is rapidly spinning to drive the wrench head, then the productivity is improved, but the temperature increases due to heat generation
Solution Approach 1:
The patent uses compressed air (pneumatics) to create a cooling flow path that moves through channels in the housing and transmission components. The air flow absorbs heat from the rapidly spinning transmission shaft and bearing, providing active cooling that enables high-speed operation without excessive temperature rise.
Solution Approach 2:
The patent introduces compressed air as an intermediary cooling medium between the heat-generating transmission shaft and the surrounding environment. The air flows through designated channels, absorbing heat from the moving parts and transferring it away from the critical components, thereby mediating the thermal management.
2Power
If compressed air is used to drive the pneumatic motor, then the power is improved, but the heat dissipation becomes insufficient
Solution Approach 1:
The patent segments the air flow path into distinct channels: a first channel for driving the pneumatic motor and a second channel for cooling the transmission set. This segmentation allows the same compressed air source to serve dual purposes - power generation and heat dissipation - by dividing the airflow into functional streams.
Solution Approach 2:
The patent makes the compressed air system multi-functional by using the same air supply for both driving the pneumatic motor and cooling the transmission components. The air outlet chamber and channels are designed to distribute air flow simultaneously to power and cooling functions, maximizing the utility of the compressed air.
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
This design effectively dissipates heat generated during operation, enhancing the cooling effect and improving the tool's performance by maintaining optimal operating temperatures.
Implementation Method 1
a sequential air flow path through channels and chambers, including an air outlet chamber, forward channel, washer channel, shaft channel, and bushing channel, to utilize compressed air for continuous heat dissipation by flowing air through these channels, thereby cooling the transmission set
Data Source
AI summary
A pneumatic tool has an air outlet chamber, at least one forward channel, a rear transmission spacing, at least one washer channel, at least one shaft channel, at least one bushing channel, and a front transmission chamber sequentially communicating with one another. Compressed air for driving the pneumatic motor flows into the air outlet chamber, and then flows forwardly to the front transmission chamber through the at least one forward channel, the at least one washer channel, the rear transmission spacing, the at least one shaft channel, and the least one bushing channel, sequentially. Heat produced by the pneumatic tool is continuously carried by the compressed air flowing forwardly, thereby dissipating the heat and cooling the transmission set.