Mobile Thick Matter Pump Layout for Stable Trailer Handling

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Solution Overview

Problem

Existing mobile thick substance pumps have unstable driving behavior due to a high center of gravity and poor accessibility for maintenance, especially when the drive engine is positioned above the pump unit.

Innovation Solution

The pump unit is arranged offset to one side of the trailer chassis, while the drive engine is positioned on the opposite side, resulting in a lower center of gravity and improved accessibility for maintenance by allowing the water box to be accessed from above.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the drive motor is positioned above the pump unit, then the structure is compact, but the center of gravity becomes high resulting in unstable handling

Engineering Contradiction:
Improvestructural compactnessVSAvoidhandling stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The patent transitions from a vertical stacking arrangement (drive motor above pump unit) to a lateral offset arrangement (drive motor to the side of pump unit). This dimensional change in component layout maintains spatial compactness while significantly lowering the center of gravity to improve handling stability.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Device complexity

If the drive motor is positioned above the pump unit, then the structure is compact, but accessibility for maintenance becomes poor

Engineering Contradiction:
Improvestructural compactnessVSAvoidmaintenance accessibility
Core Design Contradiction:
Device complexityVSEase of repair

Solution Approach 1:

The patent repositions the drive motor from a vertical position above the pump unit to a lateral position beside it. This spatial reconfiguration creates adequate clearance around the pump unit components, enabling easy access for maintenance operations such as cleaning the water tank and replacing delivery pistons, while preserving overall structural compactness.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

3Shape

If the pump unit is positioned centrally, then the design is symmetric, but the center of gravity becomes high resulting in unstable driving behavior

Engineering Contradiction:
Improvesymmetric designVSAvoiddriving stability
Core Design Contradiction:
ShapeVSStability of the object's composition

Solution Approach 1:

The patent deliberately introduces asymmetric positioning of the pump unit relative to the trailer chassis centerline. By offsetting the pump unit laterally and positioning the drive motor on the opposite side, the design achieves a lower center of gravity and improved driving stability, sacrificing perfect symmetry for enhanced operational performance.

Inventive Principle:
Principle #4Asymmetry

Data Source

PatentEP3942181B1Mobile thick matter pump
Publication Date: 2025.05.14 SCHWING GMBH
  • EP3942181B1 patent drawingFigure 1
  • EP3942181B1 patent drawingFigure 2
  • EP3942181B1 patent drawingFigure 3

AI summary

The invention relates to a mobile thick matter pump (1) for delivering thick matter, having a trailer chassis (2), a pump unit (3) which is arranged on the trailer chassis (2), and a drive motor (4) which is arranged on the trailer chassis (2) and which drives the pump unit (3) for conveying thick matter, wherein the pump unit (3) is arranged eccentrically, that is to say arranged so as to be laterally offset with respect to the longitudinal centre plane of the trailer chassis (2) in a first direction, while the drive motor (4) is likewise arranged eccentrically, to be precise arranged on the trailer chassis (2) so as to be laterally offset with respect to the longitudinal centre plane in a second direction opposite the first direction.