Alternating Pneumatic Drying for Wheel Washing Machines
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Solution Overview
Problem
Existing wheel washing machines experience reduced drying effectiveness due to deflected and disturbed air jet flows from opposing directions, leading to longer drying times, higher power consumption, and decreased throughput.
Innovation Solution
The implementation of a wheel washing machine with a pneumatic system that uses electronically controlled distribution valves to alternate the direction of compressed air jets between two drying units, ensuring that air flows do not oppose each other, allowing for efficient and thorough drying without structural changes to the machine.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If compressed air jets are blown from two opposed sides of the washing chamber toward the two corresponding vertical faces of the wheel simultaneously, then both sides of the wheel can be dried at the same time, but the air jets generate deflected and disturbed flows that decrease drying effectiveness
Solution Approach 1:
The patent implements periodic action by alternately activating drying units on opposite sides of the wheel in sequential cycles rather than simultaneously. The control system switches between left and right drying units, ensuring that only one unit operates at any given time. This periodic operation eliminates the interference between opposing air jets while maintaining high productivity through continuous alternating drying cycles.
2Area of stationary object
If compressed air jets are blown from two opposed sides simultaneously, then drying coverage is maximized, but air jet force is divided into directional components reducing impact on surfaces
Solution Approach 1:
The patent applies periodic action by sequentially activating drying units on opposite sides rather than simultaneously. Each unit operates independently in alternating cycles, delivering full-force air jets to its respective side without interference. This maintains maximum impact force while achieving complete drying coverage through the alternating sequence.
Solution Approach 2:
The patent implements continuity of useful action through overlapping drying cycles. While one drying unit is active, the wheel continues to rotate, bringing different surfaces into position for drying. The control system manages sequential activation to ensure continuous drying coverage without interruption, maintaining both full force and complete area coverage.
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 solution results in improved drying efficiency, reduced drying times, and increased capacity, as air jets are directed alternately to prevent interference and maximize impact on wheel surfaces, effectively addressing the inefficiencies of prior art.
Implementation Method 1
blow nozzles are also provided, for blowing compressed air or another pressurized fluid to dry the wheels
Implementation Method 2
spray nozzles are mounted to special support flanges at each side... said nozzles being used to spray pressurized washing liquids... their jets impinge upon the wheel surfaces at predetermined angles of incidence, to obtain a higher impact force
Implementation Method 3
the powered roller drives the wheel to be washed into rotation by adhesion with the tire tread
Data Source
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AI summary
The machine (1) for washing wheels (3) comprises: a frame that defines a washing station (4) in which wheels (3) are positioned for washing; a first washing liquid spraying unit (17) located on a first side of said washing station (4) and a second spraying unit (18) located on an opposite second side of said washing station (4); a first drying unit (213) located on a first side of said washing station (4) and a second drying unit (113) located on an opposite second side of said washing station (4); said first drying unit (213) and said second drying unit (113) being adapted to be alternately actuated, by alternate actuation means (35, 37, 137).