Slim Pump Axial Height Reduction via Partitioned Flow Chambers
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Solution Overview
Problem
Conventional slim pumps face challenges in reducing axial height while maintaining fluid supply due to interference between incoming and outgoing flows, leading to reduced fluid supply and inefficient flow guiding.
Innovation Solution
A slim pump design featuring a frame with a partitioning board separating two chambers, a motor stator, and an impeller with blades, where the working fluid flows axially into the first chamber, through a communication hole, and laterally out of the second chamber, minimizing interference and maximizing flow efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If both flow inlet and flow outlet are aligned with the upper portion of the flow guiding space to reduce axial height, then the pump achieves a thinner profile, but the incoming flow and outgoing flow interfere with each other, reducing fluid supply amount
Solution Approach 1:
The flow guiding space is segmented into an upper portion and a lower portion using a partitioning board. The partitioning board separates the incoming flow path from the outgoing flow path, preventing interference between the two flows while maintaining the compact axial height design. This segmentation allows independent optimization of inlet and outlet flow paths within the constrained space.
2Length of moving object
If the working fluid flows into the upper portion of the flow guiding space and then exits laterally, then the axial height is reduced, but the downward flow into the lower portion disturbs subsequent flows, adversely affecting discharge smoothness
Solution Approach 1:
The partitioning board divides the flow guiding space into distinct upper and lower regions. The upper portion handles the incoming flow from the flow inlet, while the lower portion manages the outgoing flow to the flow outlet. This spatial segmentation ensures that the downward flow in the lower portion does not disturb the incoming flow in the upper portion, maintaining flow smoothness and discharge reliability.
Solution Approach 2:
The partitioning board acts as an intermediary structure that mediates between the incoming flow and outgoing flow paths. It provides a physical barrier that prevents direct interaction between the two flows, allowing each to proceed smoothly through its designated path without interference, thus ensuring reliable and smooth flow discharge.
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 design allows for a thinner pump with increased fluid supply and smooth flow guidance, achieving expected flow volume and lift even in limited dimensions by utilizing internal space effectively and reducing mutual interference between incoming and outgoing flows.
Implementation Method 1
a motor stator (3) disposed around the shaft-coupling portion (2) and located within an axial extent of the first chamber (S1)
Implementation Method 2
an impeller (4) including a plurality of blades (43) and an inlet opening (44) located in the second chamber (S2). The inlet opening (44) faces and axially aligns with the communication hole (111)
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A slim pump according to the present invention includes a frame (1), a shaft-coupling portion (2), a stator (3), and an impeller (4). The frame (1) includes an interior separated by a partitioning board (11) into a first chamber (S1) and a second chamber (S2). A flow inlet (12) intercommunicates with the first chamber (S1) and a flow outlet (13) intercommunicates with the second chamber (S2). The first chamber (S1) is intercommunicated with the second chamber (S2) via a communication hole (111) of the partitioning board (11). The shaft-coupling portion (2) is located in the frame (1). The stator (3) is disposed around the shaft-coupling portion (2) and is located within an axial extent of the first chamber (S1). The stator (3) is axially aligned with the communication hole (111). The impeller (4) includes a plurality of blades (43) and an inlet opening (44) located in the second chamber (S2). The inlet opening (44) faces and axially aligns with the communication hole (111).