Mixing Device Recesses Aerosolize Repair Liquid and Air
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Solution Overview
Problem
Existing puncture repair kits take a long time to close a punctured tire as compressed air is injected after the puncture repair liquid, leading to inefficiencies in the repair process.
Innovation Solution
A mixing device that combines a mixing chamber with recesses on its surfaces to efficiently mix puncture repair liquid and compressed air, allowing for aerosolization and quick discharge, thereby reducing the time required for puncture repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If compressed air is injected after the puncture repair liquid, then the repair process can be completed, but the repair time becomes long
Solution Approach 1:
The patent combines the puncture repair liquid and compressed air into a single mixture that is injected together as one unit. The mixing chamber merges these two components before discharge, eliminating the sequential injection process and significantly reducing repair time while maintaining effective puncture repair.
Solution Approach 2:
The mixing chamber performs preliminary mixing of the puncture repair liquid and compressed air before they are discharged into the tire. This preliminary action ensures that the liquid and air are already combined in the correct proportion and state when injected, eliminating the need for separate injection steps and reducing overall repair time.
2Device complexity
If a simple mixing chamber is used, then the device structure remains simple, but the mixing efficiency is insufficient
Solution Approach 1:
The mixing chamber incorporates localized structural features including recesses on the floor and side surfaces, and a protrusion on the top surface. These local modifications create specific flow patterns and turbulence zones that enhance mixing efficiency without requiring a completely complex overall structure, maintaining simplicity while improving performance.
Solution Approach 2:
The mixing chamber employs curved surfaces including recesses and protrusions that create smooth flow paths and turbulence. These curved geometric features enhance mixing efficiency by promoting fluid circulation and preventing dead zones, while maintaining a relatively simple overall chamber structure that is easy to manufacture.
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 mixing device enables puncture repair to be performed in a shorter time by efficiently mixing and aerosolizing the repair liquid and air, reducing residual matter and aggregation, and effectively repairing punctured parts with a small amount of liquid.
Implementation Method 1
efficiently mixing and aerosolizing the repair liquid and air
Data Source
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AI summary
A mixing device 4 is for mixing a puncture repair liquid R and compressed air A, and includes a mixing chamber 8 including a top surface 8a located on an upper side when in use and a floor surface 8b located on a lower side when in use, a first inlet 9 for supplying the compressed air A to the mixing chamber 8, a second inlet 10 for supplying the puncture repair liquid R to the mixing chamber 8, and an outlet 11 for discharging a mixture of the puncture repair liquid R and the compressed air A from the mixing chamber 8. The mixing chamber 8 includes a side surface 8c connecting the floor surface 8b and the top surface 8a. Recesses 12 are formed on at least one of the surfaces 8b, 8a, and 8c so as to be recessed outward from the mixing chamber 8.