Dual-Pump Washing Machine Hydraulic Circuit With Simplified Water Routing
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Solution Overview
Problem
Conventional washing machines with a washing and/or rinsing water tank have complex hydraulic water distribution circuits, requiring multiple pumps and solenoid valves, leading to increased costs and complexity in manufacturing and operation.
Innovation Solution
A washing machine design featuring two water circulation pumps and a simplified hydraulic water distribution circuit that allows water flow between the washing tub and the washing and/or rinsing water tank, enabling operation without modifying the internal hydraulic circuit of the machine, with the option to use the tank or not depending on user preference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple water circulation pumps and solenoid valves are used to enable water tank integration, then water circulation functionality is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The single solenoid valve is designed to perform multiple functions: it controls water flow between the washing tub and water tank, manages drainage paths, and regulates circulation routes. This multi-functional valve replaces what would traditionally require multiple specialized valves, thereby reducing component count while maintaining full water circulation capability.
Solution Approach 2:
The patent combines multiple control functions into a single integrated solenoid valve assembly. The valve structure integrates multiple flow control pathways and switching mechanisms that would traditionally require separate components, merging them into one unified device that manages all water circulation operations between the washing tub and water tank.
2Adaptability or versatility
If multiple water circulation pumps and solenoid valves are used to enable water tank integration, then water circulation functionality is improved, but manufacturing cost increases
Solution Approach 1:
The single solenoid valve is designed to perform multiple functions: it controls water flow between the washing tub and water tank, manages drainage paths, and regulates circulation routes. This multi-functional valve replaces what would traditionally require multiple specialized valves, thereby reducing component count while maintaining full water circulation capability.
Solution Approach 2:
The patent combines multiple control functions into a single integrated solenoid valve assembly. The valve structure integrates multiple flow control pathways and switching mechanisms that would traditionally require separate components, merging them into one unified device that manages all water circulation operations between the washing tub and water tank.
3Adaptability or versatility
If numerous pipes are used to connect the water tank, then water distribution flexibility is improved, but device complexity increases
Solution Approach 1:
The patent employs a manifold structure that consolidates multiple pipe connections into a single integrated component. The manifold provides multiple connection points and flow paths within one device, eliminating the need for numerous separate pipes while maintaining the same distribution flexibility and connectivity options.
4Adaptability or versatility
If the hydraulic circuit is modified to accommodate the water tank, then water tank integration is achieved, but ease of manufacture decreases
Solution Approach 1:
The patent employs a manifold structure that consolidates multiple pipe connections into a single integrated component. The manifold provides multiple connection points and flow paths within one device, eliminating the need for numerous separate pipes while maintaining the same distribution flexibility and connectivity options.
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 design reduces costs, simplifies the hydraulic circuit, and allows for flexible operation, enabling the washing machine to function as a conventional unit with or without the washing and/or rinsing water tank, while maintaining reliability and adaptability in operating cycles.
Implementation Method 1
a first water circulation pump (11) connecting the washing tank (3) to at least one valve (14)
Implementation Method 2
a second water circulation pump (12) connecting the washing water tank and/or rinsing to said at least one valve (14)
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The machine (1) has a hydraulic water distribution circuit including a water circulation pump (11) e.g. centrifugal pump, connecting a washing tank (3) with a valve (14). The circuit has another water circulation pump (12) connecting a washing and/or rinsing water reservoir (6) to the valve. One of the pumps is adapted to allow passage of stream of water from the washing tank to the reservoir and vice versa when the reservoir is inactive and the other pump is active.