Dishwasher Rotatable Spray Nozzle for Multi-Angle Water Coverage
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Solution Overview
Problem
Conventional dishwashers spray water at a constant angle, limiting the effectiveness of the washing process and reducing water pressure and flow rate when nozzles face different directions.
Innovation Solution
A spray nozzle that rotates around its axis, with a wavy diverter guide that tilts nozzles radially, allowing them to spray water at different angles without decreasing pressure or flow rate, using a mechanism that can be powered by water momentum without additional motors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If nozzles are arranged to face different directions to spray water at different angles, then washing effectiveness is improved, but water pressure and flow rate decrease
Solution Approach 1:
The nozzle is made rotatable around its own axis through a pivotable attachment mechanism, allowing it to dynamically change spraying direction. The guide with wavy diverter periodically pushes the nozzle to rotate, enabling the same nozzle to spray water at different angles sequentially rather than having multiple fixed nozzles, thus maintaining water pressure and flow rate while improving washing effectiveness.
Solution Approach 2:
The guide rotates around its axis periodically, and the wavy diverter on the guide periodically pushes the nozzle, causing the nozzle to rotate back and forth in a periodic manner. This periodic rotation allows the nozzle to spray water at different angles at different times, achieving comprehensive washing coverage without requiring multiple nozzles operating simultaneously, thereby maintaining high water pressure and flow rate.
2Productivity
If multiple nozzles facing different directions are used to improve washing coverage, then washing effectiveness is improved, but device complexity increases
Solution Approach 1:
A single nozzle is designed to perform multiple functions by rotating around its axis. The same nozzle structure serves different spraying directions at different times, replacing what would traditionally require multiple separate nozzles. This multi-functionality reduces the number of components needed while achieving comprehensive washing coverage.
Solution Approach 2:
The functions of multiple nozzles facing different directions are merged into a single rotatable nozzle. By combining the spraying functions of multiple nozzles into one nozzle that can change direction, the system achieves the same washing coverage with fewer components, thereby reducing device complexity.
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
Improves washing effectiveness by ensuring water is sprayed at various angles, reaching all surfaces of dishes and deep utensils, enhancing cleaning performance without increasing water consumption.
Implementation Method 1
a guide (11) with two concentric rings (12) that enables, when placed into the body (6), the nozzles (8) to be supported through the lower parts thereof by bearing against the gap between two rings (12), and a diverter (13) with a wavy form that is arranged on a part of at least one ring (12), that, with the rotation of the guide (11), contacts the lower part of the nozzle (8) and enables the nozzle (8) to be periodically tilted
Data Source
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AI summary
The present invention relates to a dishwasher (1) comprising a washing tub (2); at least one rack (3) that is disposed in the washing tub (2) and wherein the dishes to be washed are placed, and a water conduit (4) that enables the water to be transferred into the washing tub (2).