Hydraulic Filter Assembly With Integrated Calming Coil for Particle Sensing
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Solution Overview
Problem
Existing filter units for hydraulic applications face inaccuracies in particle measurement due to undissolved gas components, which are mistakenly detected as contamination by particle counters, requiring external calming sections that occupy space and complicate the design.
Innovation Solution
A compact filter unit design integrates a fluid line forming a calming section as a spiral coil within the housing, allowing gases to dissolve before reaching the particle sensor, eliminating the need for external hoses and enhancing spatial efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If an external hose line is used as a calming section, then gases can be dissolved before measurement, but the device occupies more space and has more complex external connections
Solution Approach 1:
The calming section is merged with the housing by integrating the fluid line directly into the housing structure, forming an internal winding instead of using an external hose line. This combines the housing and calming section into a single integrated component, eliminating the need for external connections while maintaining the gas-dissolving function.
Solution Approach 2:
The fluid line is nested within the housing by forming a winding that follows the internal contours of the housing. The line is routed through the housing structure itself, allowing the calming section to be contained within the existing housing volume without requiring additional external space.
2Measurement precision
If a long fluid line is used as a calming section, then gases can be dissolved, but the device becomes less portable and more complex
Solution Approach 1:
The fluid line is merged with the housing structure, eliminating the need for separate external hose assemblies. The line becomes an integral part of the housing, reducing the number of separate components and simplifying the overall device architecture.
Solution Approach 2:
The fluid line is formed into a winding configuration that utilizes the three-dimensional space within the housing. By curving the line into loops and spirals that follow the housing contours, a long effective length is achieved within a compact volume, maintaining the calming function while simplifying the external appearance.
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 design improves accuracy in fluid contamination detection by ensuring gases are dissolved before measurement, while maintaining a compact and space-efficient format, suitable for portable hydraulic applications.
Implementation Method 1
a fluid line of a definable length being present as a calming section as part of the device for particle measurement on the inflow side of the particle sensor in such a way that gases entrained in the fluid are back in the fluid solve
Data Source
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AI summary
The invention relates to a filter assembly, in particular functioning as a portable service assembly for hydraulic applications, at least consisting of a motor-pump unit (8), which is connected to a filter element (18) by an outlet (14) in the main flow and is connected to a device for particle measurement in the fluid by its other outlet (26) in the bypass flow, which has a particle sensor (36), wherein a fluid line (38) of a predefinable length is provided as a calming section, as a component of the device for particle measurement on the in-flow side of the particle sensor (36), in such a way that gases carried along in the fluid dissolve back into the fluid, characterised in that the fluid line of a predefinable length is accommodated in a housing part (52) of the assembly, collected to form at least one winding (38).