Blow-By Gas Filter Assembly With Bearing-Guided Shaft Alignment
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Solution Overview
Problem
Existing blow-by gas filtration assemblies face challenges in simplifying the alignment and assembly of the filter group and electric drive, leading to complex and imprecise engagement mechanisms, which complicates the filtration process and assembly.
Innovation Solution
The proposed blow-by gas filtration assembly features a simplified design with a shaft that integrally mounts the filter group and electric drive, utilizing a threaded coupling and support bearing to ensure precise alignment and rotation, eliminating the need for additional alignment components and reducing the number of gaskets, thus simplifying the assembly and enhancing reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional engagement means are used between electric drive and filter group, then the filtration assembly can be assembled, but the alignment between electric drive and filter group becomes imprecise and complex
Solution Approach 1:
The patent merges the electric drive and filter group into a single integrated unit where the electric drive is directly coupled to the filter group's rotation axis. This integration eliminates separate engagement mechanisms and alignment components, ensuring precise alignment while reducing overall device complexity. The electric drive's output shaft is directly connected to the filter group's rotation axis, creating a unified assembly that avoids the alignment issues of traditional separate-component designs.
2Ease of manufacture
If complex engagement means are used to connect electric drive and filter group, then connection is achieved, but assembly methods become complex and time-consuming
Solution Approach 1:
By integrating the electric drive directly with the filter group through a unified structural design, the patent eliminates the need for complex engagement mechanisms. The electric drive is positioned and connected such that standard assembly procedures can be used, reducing assembly complexity and time while maintaining secure mechanical connection.
3Manufacturing precision
If additional alignment components are used to ensure precise positioning, then alignment accuracy improves, but the number of components and gaskets increases
Solution Approach 1:
The patent achieves precise alignment through the integrated design of the electric drive and filter group, where the electric drive's output shaft is directly coupled to the filter group's rotation axis. This merging of components eliminates the need for separate alignment elements, positioning rings, or additional gaskets, thereby maintaining high alignment accuracy while reducing the total number of parts.
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 ensures accurate alignment of the filter group and electric drive without additional alignment elements, reduces component complexity, and enhances the assembly's reliability and compactness, leading to improved filtration efficiency and reduced maintenance costs.
Implementation Method 1
a support bearing (6) suitable to support the shaft (5) to the assembly body (2) in such a way as to keep it centred to the axis (X-X) and allow its rotation with respect to the assembly body (2)
Implementation Method 2
the suspended particles are separated from the air both by passing through the porous material and by the action of the centrifugal force
Data Source
AI summary
A blow-by gas filtration assembly has an axis and includes an assembly body including a filtration chamber, an inlet mouth for filtering the blow-by gases, and an outlet mouth for the filtered blow-by gases. A filter group includes a central cavity radially crossed by blow-by gases. An electric drive operatively connects to the filter group to command rotation about the axis and filtration, and includes an electric motor including a stator and rotor. An axial shaft includes a filter portion mounting the filter group, a command portion mounting the rotor, and a support portion axially between the filter and command portions. A support bearing radially engages the support portion and the assembly body. The filter assembly screwably engages the filter group and filter portion, by respective filter and shaft threads so the filter group screws to the shaft until the support bearing is axially engaged.