Oscillating Piston Pump One-Piece Structural Element

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Solution Overview

Problem

Current electromagnetic pumps with oscillating pistons in condensate removal systems have complex architectures requiring precise assembly, leading to potential deformation and efficiency losses due to transverse stresses, and present challenges during maintenance operations.

Innovation Solution

A one-piece structural element comprising a hollow tubular body and a solenoid-bearing tubular body, which simplifies the architecture by eliminating the need for multiple parts and reduces stress-induced deformation, along with removable end pieces for easy maintenance.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If multiple separate tubular bodies are assembled to form the pump structure, then the device can be manufactured with standard components, but the assembly complexity increases and transverse stresses cause deformation

Engineering Contradiction:
Improvemanufacture with standard componentsVSAvoidassembly complexity
Core Design Contradiction:
Ease of manufactureVSDevice complexity

Solution Approach 1:

The patent merges multiple separate tubular bodies (liner, coil former, air gap structure) into a single integrated tubular structure. This one-piece construction eliminates the need for precise assembly of multiple components, reducing assembly complexity while maintaining manufacturability through standardized production processes for the integrated structure.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of repair

If multiple separate tubular bodies are assembled, then component replacement is easier, but transverse stresses deform the structure and reduce hydraulic performance

Engineering Contradiction:
Improvecomponent replacementVSAvoidhydraulic performance
Core Design Contradiction:
Ease of repairVSReliability

Solution Approach 1:

The integrated tubular structure eliminates transverse stresses between separate components that cause deformation. The unified structure maintains consistent hydraulic performance and straightness throughout operation, preventing the rubbing and efficiency losses that occur with assembled structures.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent incorporates removable end pieces that can be detached for maintenance and replacement of internal components like the piston and springs, while the main integrated tubular structure remains fixed to preserve hydraulic performance. This dynamic approach allows repair without compromising structural integrity.

Inventive Principle:
Principle #15Dynamics

3Strength

If tubing is connected directly to the liner ends with metal collars, then the connection is secure, but maintenance requires cutting the tubing and causes economic loss

Engineering Contradiction:
Improveconnection strengthVSAvoidmaintenance operation
Core Design Contradiction:
StrengthVSEase of repair

Solution Approach 1:

The pump structure is segmented into a fixed integrated tubular body and removable end pieces. The end pieces can be detached to allow tubing disconnection and pump maintenance without cutting the tubing, while the integrated body ensures secure connections during operation. This segmentation enables easy repair while maintaining connection strength during use.

Inventive Principle:
Principle #1Segmentation

4Productivity

If precision assembly is performed to ensure optimal operation, then the pump operates efficiently, but the manufacturing and installation time increases

Engineering Contradiction:
Improveoperational efficiencyVSAvoidassembly time
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The integrated tubular structure eliminates multiple assembly steps required for joining separate components (liner, coil former, air gap structure). The one-piece construction maintains optimal hydraulic performance and straightness without requiring time-consuming precision assembly operations, reducing installation time while preserving operational efficiency.

Inventive Principle:
Principle #5Merging (Combining)

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 solution enhances the robustness and hydraulic performance of the pump by reducing assembly errors and costs, while facilitating maintenance by allowing easy connection and disconnection of tubing without dismantling.

Implementation Method 1

a coil 3 powered by a rectified AC current forming a solenoid

Methodology Applied
Scientific EffectSolenoid: Solenoid

Implementation Method 2

The magnetic field created by the coil 3 forms a solenoid driving the alternating axial movements of the piston 5

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Data Source

PatentUS11486375B2Oscillating piston pump comprising a one-piece structural element having a first and a second hollow tubular body
Publication Date: 2022.11.01 SAUERMANN IND SA
  • US11486375B2 patent drawing
  • US11486375B2 patent drawing
  • US11486375B2 patent drawing

AI summary

An oscillating piston pump including: a first hollow tubular body in which a piston moves; a second hollow tubular body extending around the first hollow tubular body, carrying a solenoid that controls the movement of the piston, the first tubular body and the second tubular body forming a one-piece structural element.