Faucet Cartridge Assembly with Segmented Disk Openings
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Solution Overview
Problem
Existing faucet cartridge assemblies typically optimize one of flow rate, flow modulation, or particulate passage while compromising on the others, failing to provide a balanced solution for all three features.
Innovation Solution
A cartridge assembly design featuring a cartridge shell, a stem, a moveable disk, and a fixed disk with symmetrical openings that allow for controlled flow rate modulation and particulate passage, with two zones of control: a gradual increase in flow rate and high modulation control from 15 to 45 degrees, and a steep increase with low modulation control from 45 to 75 degrees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the openings in the disks are enlarged to improve flow rate, then the flow rate increases, but the control over flow modulation deteriorates
Solution Approach 1:
The flow path is segmented into multiple zones with different opening characteristics. The first zone has smaller openings for precise control, while the second zone has larger openings for high flow rate, allowing both control and productivity to be optimized in different operational ranges.
Solution Approach 2:
Different regions of the disk openings have different sizes and shapes tailored to specific functions. The openings transition from smaller, more controllable dimensions in the first zone to larger, higher-flow dimensions in the second zone, enabling local optimization of both control and flow rate.
2Measurement precision
If the openings are made smaller to improve flow modulation control, then the control precision improves, but the flow rate decreases
Solution Approach 1:
The system dynamically transitions between different opening zones based on operational requirements. The moveable disk can position itself to utilize either the first zone for precise control or the second zone for high flow rate, providing adaptive performance.
Solution Approach 2:
The solution adds a spatial dimension by creating multiple zones at different locations on the disk. Instead of using a single uniform opening size, the system uses radial positioning to provide different opening characteristics, effectively adding a positional dimension to control flow properties.
3Adaptability or versatility
If the openings are enlarged to improve particulate passage, then larger particulates can pass through, but the flow modulation control deteriorates
Solution Approach 1:
The disk is segmented into zones with different opening sizes. The second zone has enlarged openings that accommodate larger particulates while the first zone maintains smaller openings for precise flow control, allowing the system to handle particulates of various sizes without sacrificing control capability.
4Measurement precision
If the openings are made smaller to improve flow modulation control, then the control precision improves, but the particulate passage capability decreases
Solution Approach 1:
The system can dynamically select which zone to use based on particulate load. When particulate passage is required, the moveable disk positions to utilize the larger openings in the second zone, while maintaining precise control capability through the first zone when particulate passage is less critical.
Data Source
AI summary
The present invention provides a cartridge assembly for a faucet that provides improved flow rate, flow modulation, and particulate passage.