Pneumatic Pump Spheroidality Compact Design
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Solution Overview
Problem
Conventional pneumatic pumps face inefficiencies when scaled down for portable applications, as their design does not allow for a compact package and volumetric inefficiency due to the size constraints of inlets and outlets, which limits their practicality in pumping flowable waste compositions and other materials.
Innovation Solution
A portable pneumatic pump design featuring a spherically-derived pressure vessel, a supporting frame with a tubular steel construction, and a compressed air-operated venturi assembly with non-return valves and pneumatic actuators to optimize the venturi cycle, allowing for efficient operation in compact spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If conventional pneumatic pump designs are used, then the pump can handle large scale operations, but the pump cannot be scaled down for portable applications due to volumetric inefficiency and non-compact design
Solution Approach 1:
The pressure vessel is designed with a spherically-derived shape rather than conventional cylindrical or box-like forms. This spherical geometry maximizes volume while minimizing surface area and overall footprint, enabling compact portable design without sacrificing pumping efficiency. The spherical shape allows the pump to maintain effective working volumes while fitting into smaller package configurations.
Solution Approach 2:
The patent reconfigures the spatial arrangement of inlet and outlet ports by utilizing three-dimensional positioning within the spherical vessel. The inlet and outlet are positioned at different vertical levels with optimized angular orientations, creating efficient flow paths that maximize volumetric utilization. This dimensional optimization allows compact scaling while maintaining pumping performance.
2Strength
If conventional vertical-axis or horizontal-axis vessel designs are used, then the vessel can resist distortion under pressure, but the design does not admit of a compact package for portable applications
Solution Approach 1:
The spherical pressure vessel geometry is inherently superior for withstanding pressure differential forces compared to cylindrical or box designs. The curved surface distributes stress uniformly across the structure, eliminating weak points. This spherical form factor simultaneously achieves compact packaging while maintaining excellent pressure resistance, perfectly suited for portable applications.
Solution Approach 2:
The pressure vessel employs composite construction combining spherical steel shell with strategic reinforcement zones and integrated mounting flanges. This composite approach maintains structural integrity under pressure while minimizing overall size and weight for portable deployment. The reinforced spherical design achieves both compactness and pressure resistance.
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 enhances volumetric efficiency and compactness, enabling effective pumping of flowable materials in portable settings by optimizing the venturi cycle and using non-return valves to prevent reflux and aspiration, thus overcoming the limitations of conventional designs.
Implementation Method 1
compressed air is used to lower the internal pressure of the vessel by venturi effect to draw material in
Implementation Method 2
one or both of said inlet and said outlet having a non-return valve
Data Source
AI summary
There is provided a pneumatic pump (10) comprising a tubular steel frame (11) and a disc-shaped pressure vessel (12) including a lower, tangential transfer port (14) and an upper, radial ventilation port (15). A transfer assembly (16) on the port (14) includes an inlet assembly (17) having a positive-close non-return valve (21) and a delivery outlet assembly (20). A venturi assembly (22) applies suction to the ventilation port (15) and has an exhaust vent (24) including a closure assembly (25) selectively operable to cycle between a suction phase and a pressurized phase. A two way T-valve (40) selectively allows venturi exhaust air to pass selectively into either a diffuser/muffler (35) or a delivery line (42) downstream of an outlet non-return valve.