Disc Stack Separator Conical Section Recesses for Soot Clogging
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Solution Overview
Problem
The contamination outlet opening of disc stack separators in combustion engine breathing systems becomes clogged over time due to soot particle deposits, which have not been effectively addressed by existing technologies.
Innovation Solution
Modifying the conical section of the disc by creating recesses on the spherical sides and adapting the shape of the top and bottom sides of the sections bordering the ribs to reduce or prevent soot deposits, which are found to accumulate and cause clogging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the disc stack separator uses conventional smooth conical sections with ribs, then the structure is simple and easy to manufacture, but soot particles accumulate on the discs causing clogging of the outlet opening
Solution Approach 1:
The patent applies local quality by modifying only specific regions of the conical section - creating recesses at the spherical sides where soot accumulates, while leaving other areas unchanged. This targeted modification addresses the clogging problem without requiring complete restructuring of the entire disc, thus maintaining simplicity while improving reliability.
Solution Approach 2:
The conical section is segmented into different functional zones: smooth areas for general flow and recessed areas for soot management. By dividing the surface into distinct regions with different geometries, the patent prevents soot accumulation in critical areas while maintaining the overall structural integrity and simplicity of the disc design.
2Ease of manufacture
If soot deposits are allowed to accumulate on the discs, then the disc structure remains unchanged and simple, but the contamination outlet opening becomes clogged
Solution Approach 1:
Instead of complicating the entire disc structure, the patent applies local quality modifications only where soot accumulation occurs - at the spherical sides of the conical section. The recesses created in these specific locations prevent soot buildup without affecting the overall manufacturing simplicity of the disc stack separator.
3Reliability
If the conical section shape is modified to prevent soot deposits, then soot accumulation is reduced, but the manufacturing process becomes more complex
Solution Approach 1:
The patent resolves this contradiction by applying modifications only to local areas where soot accumulation occurs - the spherical sides of the conical section - rather than redesigning the entire disc. These localized recesses are simple geometric features that can be integrated into existing manufacturing processes without requiring complete process overhaul, thus maintaining ease of manufacture while improving reliability.
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 modifications effectively reduce or eliminate soot deposits, preventing clogging in the outlet opening and ensuring the disc stack separator functions efficiently.
Implementation Method 1
a disc stack separator, more particularly, for a breathing system of a crankcase space of a combustion engine of a vehicle, comprising a housing with a rotary rotor therein carried in a bearing which comprises a plurality of discs axially arranged on top of each other
Data Source
AI summary
A disc for a disc stack separator for a breathing system of a crankcase space of a combustion engine of a vehicle has an annular conical section and a central part located therein and having a plurality of openings. The conical section is provided on one side with ribs which are curved from the inner periphery of the conical section to the outer circumference of the conical section.