Dishwasher with check valve in rotatable docking port
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Solution Overview
Problem
Traditional dishwasher spray arm systems are inefficient as they waste resources by not focusing wash fluid precisely and often fail to thoroughly clean utensils in the corners of the tub, leading to lower cleaning performance and unnecessary noise.
Innovation Solution
A dishwasher design incorporating a rotatable docking port with a check valve to control the flow of wash fluid or air to a conduit, allowing for precise direction of the tubular spray element to various positions, ensuring thorough cleaning and reducing noise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional spray arms are used to distribute wash fluid, then all areas are covered equally, but resources are wasted and cleaning precision is poor
Solution Approach 1:
The patent divides the wash fluid delivery system into multiple independent rotatable conduits, each capable of independent rotation and fluid delivery. This segmentation allows precise targeting of specific areas rather than spraying all areas equally, thereby improving wash fluid targeting precision while reducing water and energy waste.
Solution Approach 2:
The rotatable conduits can dynamically adjust their orientation and rotation during the wash cycle, allowing the system to focus wash fluid precisely where needed at different times. This dynamic adjustment capability enables precise targeting while avoiding waste of water and energy on already-clean areas.
2Reliability
If spray arms follow a circular path, then the system is simple to implement, but corner areas are not covered thoroughly
Solution Approach 1:
The rotatable conduits can dynamically adjust their orientation and rotation during the wash cycle, allowing the system to focus wash fluid precisely where needed at different times. This dynamic adjustment capability enables precise targeting while avoiding waste of water and energy on already-clean areas.
3Object-affected harmful factors
If spray jets are directed to the sides of the wash tub, then the spray arm rotates freely, but unnecessary noise is generated
Solution Approach 1:
The system incorporates sensors that detect the rotational position of the conduits and provide feedback to the control system. This feedback mechanism allows the control system to adjust the rotation and orientation of the conduits to avoid directing spray jets at the tub sides, thereby reducing noise while maintaining rotation freedom through controlled adjustment.
Solution Approach 2:
The control system acts as an intermediary between the rotatable conduits and the wash tub environment. It mediates the rotation movement by monitoring spray jet direction and adjusting conduit orientation to prevent harmful noise-generating impacts while preserving the rotational capability of the system.
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 enhances cleaning efficiency by focusing wash fluid where needed, improving coverage in the tub, and reducing noise by directing spray jets more effectively during the wash cycle.
Implementation Method 1
a check value coupled to and rotatable with the rotatable docking port, the check valve movable between opened and closed positions and biased to the closed position when the connector of the conduit is disengaged from the rotatable docking port
Implementation Method 2
the check valve movable between opened and closed positions and biased to the closed position when the connector of the conduit is disengaged from the rotatable docking port
Data Source
AI summary
A dishwasher and method for operating the same utilize a check valve in a rotatable docking port to control the flow of fluid such as wash fluid or pressurized air to a rotatable conduit supported in the rack of a dishwasher.