Spraying Device Deflector for Wheel Washing
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Solution Overview
Problem
Prior wheel washing machines are ineffective in cleaning the spokes of vehicle wheels with rims having spokes oriented parallel to the central axis of rotation, as the washing liquid jets hit the lateral faces in a tangential direction, lacking sufficient force to remove tough dirt, and larger wheel diameters result in inadequate washing due to changing impact direction.
Innovation Solution
A spraying device with a cylindrical body and a deflector element having two deflecting surfaces forming a dihedral, which directs washing liquid jets in diverging directions, including orthogonal and oblique angles, to ensure thorough coverage of the wheel surface, including hidden areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If washing nozzles are positioned to spray washing liquid onto rotating wheels, then the wheel surface is cleaned, but the jets hit the lateral faces of spokes in a tangential direction with insufficient force to remove tough dirt
Solution Approach 1:
The patent introduces a deflector element with two deflecting surfaces that redirect the washing liquid jets from a tangential direction to include orthogonal and oblique angles. This dimensional change in spray trajectory allows the liquid to impact the lateral faces of spokes with sufficient perpendicular force to remove tough dirt, while still covering the overall wheel surface.
2Area of stationary object
If washing liquid jets are directed to hit the entire wheel surface, then coverage is improved, but washing cycle time increases
Solution Approach 1:
The deflector element is segmented into two distinct deflecting surfaces that divide and redirect the washing liquid into multiple targeted streams. This segmentation allows simultaneous coverage of different wheel areas (face and lateral surfaces of spokes) with optimized spray angles, maintaining thorough coverage while reducing the time needed for effective cleaning.
3Adaptability or versatility
If washing nozzles are positioned for optimal impact on small diameter wheels, then cleaning effectiveness is maximized for small wheels, but larger diameter wheels receive inadequate washing due to changing impact direction
Solution Approach 1:
The deflector element with its two deflecting surfaces creates a universal spraying mechanism that adapts to different wheel diameters. By redirecting jets at multiple angles (orthogonal and oblique), the system maintains effective washing impact on both small and large diameter wheels, eliminating the need for diameter-specific nozzle positioning and ensuring consistent cleaning quality across all wheel sizes.
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 improved spraying device achieves a full and satisfactory washing effect on wheels with inclined or parallel-spoke rims, reducing washing cycle times and water usage, ensuring effective dirt removal from all wheel surfaces.
Implementation Method 1
a deflector element (19) having two deflecting surfaces (20, 21) forming a dihedral, which directs washing liquid jets in diverging directions, including orthogonal and oblique angles
Data Source
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AI summary
A spraying device (13; 100; 200; 600) for wheel washing machines (1) comprises a three-dimensional body (15; 215) which defines a longitudinal axis (A) and a longitudinal inner chamber (23) for the passage of washing liquid flows; spraying means (18; 118) formed in said three-dimensional body (15; 115) for spraying said flows out of said inner chamber (23); deflector means for deflecting the flows sprayed out of said inner chamber (23) toward a wheel (2) to be washed; said deflector means comprising at least one deflector element (19) which has at least two deflecting surfaces (20, 21) providing deflection in at least two directions, which is supported by said three-dimensional body in a longitudinal position in which said deflecting surfaces (20, 21) have said spraying means in front of them (18; 118).