Valve-Free One-Way Pumping Structure for Unidirectional Fluid Flow
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Solution Overview
Problem
Existing one-way pumping devices rely on valves or flaps that are prone to malfunctions and have complex structures, while turbocharging systems for internal combustion engines face similar issues with complexity and high process requirements.
Innovation Solution
A one-way pumping device comprising two one-way pipes and a deformable pipe connected between them, where the deformable pipe changes shape under external force to alter its internal volume, combined with a housing that forms a pressure chamber, enabling unidirectional fluid flow through varying cross-sectional areas and resistance differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If one-way valves or one-way flaps are used in existing pumping devices, then unidirectional fluid flow can be achieved, but the structure becomes complex and prone to malfunctions
Solution Approach 1:
The patent removes the traditional one-way valve or flap components from the pumping device. Instead, it uses a deformable pipe with varying cross-sectional areas that passively directs fluid flow through its geometric configuration, eliminating the need for separate valve mechanisms and reducing structural complexity while maintaining reliable unidirectional flow
Solution Approach 2:
Rather than using active valve components to force unidirectional flow, the patent inverts the approach by using a passively deformable pipe structure where the geometry itself guides the flow direction. The deformable pipe's varying cross-section creates resistance differences that naturally direct fluid movement without requiring separate control mechanisms
2Productivity
If one-way flaps with continuously bending structures are used, then intermittent fluid flow can be achieved, but the structure becomes complex and prone to breakage
Solution Approach 1:
The patent employs a deformable pipe that dynamically changes its cross-sectional area in response to fluid pressure and external forces. This dynamic deformation enables intermittent fluid flow control without requiring complex continuously bending structures, as the pipe's geometry adapts automatically to flow conditions
Solution Approach 2:
The deformable pipe's cross-sectional area varies as a key parameter, allowing the system to control fluid flow intermittently. By changing the geometric parameter of the pipe wall deformation rather than using complex bending structures, the patent achieves flow control with simpler, more reliable construction
3Productivity
If traditional turbocharging systems are used for internal combustion engines, then fluid transport can be achieved, but the structure becomes complex and process requirements are high
Solution Approach 1:
The deformable pipe system is self-regulating and requires minimal external control. The pipe automatically adjusts its deformation based on fluid pressure and flow conditions, enabling efficient fluid transport without complex control systems or high process requirements, thus simplifying the overall turbocharging 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
The device achieves unidirectional fluid flow with a simple structure, low noise, and long service life for artificial hearts, and reduces manufacturing complexity and cost for internal combustion engine turbocharging systems.
Implementation Method 1
The deformable pipe 1 has radial and/or axial elasticity, and can change its shape under the action of an external force to alter its internal volume
Implementation Method 2
Cooperating with the two one-way pipes 5, it enables the fluid passing through the interior of the one-way pumping device to flow in a single direction
Data Source
AI summary
A one-way pumping device and its application devices, so as to enhance the resistance difference effect between the forward direction and the reverse direction of the one-way pumping device and realize a structure applicable to more application devices. To achieve the above purpose, this application provides the following technical solutions: a one-way pumping device, an artificial heart, and an internal combustion engine exhaust gas supercharging device.