Blow-by Gas Filtration Assembly with Annular Alignment
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Solution Overview
Problem
Existing blow-by gas filtration assemblies for internal combustion engines are complex and difficult to assemble and disassemble, with a high risk of misalignment of the filter group, which can lead to ineffective filtration and reduced durability.
Innovation Solution
A blow-by gas filtration assembly with a simple design featuring a main body, a filter group with a radial filter media, and an annular alignment and fixing group that ensures the filter group is easily assembled and disassembled while maintaining a predetermined axial position, thereby preventing misalignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex filtration assembly design is used to ensure filter group positioning, then the filtration reliability is improved, but the device complexity and assembly difficulty increase
Solution Approach 1:
The patent introduces an annular alignment and fixing group as an intermediary component between the filter group and the main body. This intermediary element simplifies the overall assembly by providing a dedicated mechanism for axial positioning and securing the filter group, thereby improving reliability without significantly increasing device complexity.
Solution Approach 2:
The filtration assembly is divided into distinct functional modules: the main body, the filter group, and the annular alignment and fixing group. This segmentation allows each component to be optimized independently and facilitates easier assembly and disassembly while maintaining precise positioning and high reliability.
2Ease of operation
If the filter group is made easily assemblable and disassemblable, then the ease of operation is improved, but the positioning precision and alignment may be compromised
Solution Approach 1:
The annular alignment and fixing group serves as a mediator that enables easy assembly and disassembly while ensuring precise axial positioning. The intermediary structure includes features like annular grooves and protrusions that guide the filter group into the correct position during assembly, eliminating the need for complex alignment procedures.
Solution Approach 2:
The annular alignment and fixing group is pre-configured with alignment features before assembly. This preliminary preparation ensures that when the filter group is assembled, it automatically achieves the correct axial position and alignment, maintaining manufacturing precision while simplifying the assembly operation.
3Duration of action of stationary object
If the filter group positioning is guaranteed over time, then the durability is improved, but the device complexity increases
Solution Approach 1:
The annular alignment and fixing group acts as a durable intermediary structure that maintains the filter group's axial position over time. By concentrating the positioning and securing functions in this dedicated component, the patent achieves long-term reliability without distributing complexity across multiple structural elements.
Solution Approach 2:
The annular alignment and fixing group performs multiple functions simultaneously: it aligns the filter group axially, secures it in position, and prevents radial displacement. This multi-functionality reduces the need for separate components, thereby improving durability while limiting structural complexity.
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 assembly provides effective filtration of blow-by gases with reduced complexity and cost, ensuring long-term correct operation by maintaining the axial position of the filter group and preventing misalignment, thus enhancing the reliability and durability of the filtration system.
Implementation Method 1
said volumetric compression being such that it integrally mutually engages the dynamic element and the annular collar
Implementation Method 2
an elastically yielding annular element suitable for mutually connecting and locking the dynamic element to the annular collar
Data Source
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AI summary
The invention relates to a blow-by gas filtration assemb1y (1) fluidically connectable to a crankcase venting circuit of an internal combustion engine. The filtration assembly (1) comprises an axis (X-X) and comprises a main body (2) comprising a filtration chamber (20) comprising a flow aperture (21) delimited by an aperture edge (210) extending concentrically relative to the axis (X-X). The filtering assembly (1) comprises: a filter group (3) which comprises a filter media (30), comprising a filter cavity (300), radially crossable in filtration by the blow-by gases; a command group (5) supported on the main body (2) operationally connected to the filtering group (3); an annular collar (6) operationally connected to the filter group (3); an annular alignment and fixing group (7), positioned between the aperture edge (210) and the annular collar (6), suitable for performing the rotational and fluidic mechanical coupling of the filter group (3) with the main body (2), comprising: (i) a dynamic element (72) comprising a first radial face (721') engaged at the aperture edge (210) and a second radial face (722') radially facing the annular collar (6); (ii) an elastically yielding annular element (71) positioned between the dynamic element (72) and the annular collar (6), wherein the elastically yielding annular element (71) is elastically yielding by displaying a flattened configuration in which it is volumetrically compressed between the second radial face (722') and the annular collar (6).