Pump and washing device including pump
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Solution Overview
Problem
Existing pumps are inadequate for simultaneously driving both liquid and air flow, necessitating additional devices that increase space and cost.
Innovation Solution
A pump design incorporating an impeller chamber with a peripheral wall and end wall, featuring fluid inlets and outlets configured to generate a water ring for enhanced air pumping capability, allowing simultaneous liquid and air pumping.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a conventional pump is used for liquid pumping, then liquid driving capability is achieved, but air pumping capability is insufficient
Solution Approach 1:
The pump is designed with a water ring generation structure that enables it to perform both liquid pumping and air pumping functions using the same impeller and chamber, making the device universal for both fluid types without requiring separate dedicated pumps
2Adaptability or versatility
If an additional air pumping device is added, then air pumping capability is improved, but device complexity and cost increase
Solution Approach 1:
The pump chamber is designed to serve dual purposes: liquid pumping mode and air pumping mode, eliminating the need for separate air pumping devices and reducing overall system complexity
Solution Approach 2:
The invention uses a water ring generated within the pump chamber to seal and compress air, utilizing hydraulic principles to achieve air pumping function without mechanical contact, thereby simplifying the device structure
3Adaptability or versatility
If an additional air pumping device is added, then air pumping capability is improved, but space occupation increases
Solution Approach 1:
The same pump chamber and impeller assembly are used for both liquid and air pumping operations, eliminating the need for additional air pumping components and reducing total device volume
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 pump effectively drives both liquid and air flow, creating a negative pressure in the washing drum for enhanced washing and dehydration, reducing the need for separate devices and saving space and cost.
Implementation Method 1
due to a high-speed rotation of the impeller and a reserved distance between the edge of the first fluid outlet and the peripheral wall of the impeller chamber. A width of the water ring is related to the distance between the first fluid outlet and the peripheral wall
Data Source
Figure 1~2
Figure 3~4
Figure 5A~5C
AI summary
Embodiments of the present invention provide a pump, including a motor, an impeller driven to rotate by the motor, and an impeller chamber arranged around the impeller. The impeller chamber includes a peripheral wall located on an outer side of the impeller in a radial direction, and an end wall located on an outer side of the impeller in an axial direction and opposite to the motor, where a fluid inlet and a first fluid outlet spaced apart from each other are arranged on the end wall, and an edge of the first fluid outlet and the peripheral wall are kept an interval distance from each other in the radial direction. The embodiments of the present invention further provide a washing device, including a control device and a washing drum, where a pump is fluidly connected to the washing drum.