MacPherson Strut Upper Support With Integrated Rotating Stop
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Solution Overview
Problem
Current Mac-Pherson type suspension systems for motor vehicles have complex assembly and maintenance due to the separate components of the upper part, which complicates integration and alignment.
Innovation Solution
A multifunctional support with a cylindrical filtration barrel, impact barrel, and integrated rotating stop, featuring a friction ring or ball stop, which simplifies assembly and maintenance by providing a compact, integrated design that includes a prestressing washer for consistent force application and secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If separate components are used for the upper part of the strut (filtration assembly, shock absorber, rotating stop), then each component can be independently manufactured and replaced, but the assembly and maintenance complexity increases
Solution Approach 1:
The patent combines the filtration assembly, shock absorber, and rotating stop into a single integrated upper strut assembly. The filtration barrel and shock barrel are merged into one component housing, the shock absorber is integrated with the rotating stop mechanism, and all mounting functions are consolidated into a single assembly unit that attaches to the vehicle body as one piece, thereby reducing assembly and maintenance complexity while maintaining manufacturability
Solution Approach 2:
The integrated upper strut assembly performs multiple functions simultaneously: the filtration assembly filters contaminants, the shock absorber dampens vibrations, the rotating stop prevents over-rotation, and the mounting flange secures the assembly to the vehicle body. This multi-functional integration reduces the number of separate components needed and simplifies the overall system while maintaining all necessary functions
2Adaptability or versatility
If multiple separate components are used in the upper strut assembly, then component replacement is flexible, but the time required for assembly and maintenance increases
Solution Approach 1:
By merging the filtration assembly, shock absorber, and rotating stop into a single integrated unit, the patent enables the entire upper strut assembly to be installed or replaced as one component, significantly reducing assembly and maintenance time compared to assembling multiple separate parts, while still allowing for potential replacement of the entire assembly if needed
3Productivity
If a compact integrated design is used for the upper strut assembly, then assembly efficiency is improved, but the structural complexity of individual components increases
Solution Approach 1:
The integrated upper strut assembly is designed with internal segmentation into distinct functional zones: the filtration barrel section, the shock absorber chamber, the rotating stop mechanism, and the mounting flange. This segmentation allows each function to be clearly defined and manufactured using standard processes, reducing the actual structural complexity despite the integrated appearance
Data Source
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AI summary
The present invention relates to a strut (12) comprising a shock absorber whose rod (18, 19) is linked to a structural element (22), a support cup for the end of a helical spring (24), a rotating stop (30), a shock block (38), a filtration assembly (36), characterized in that it comprises a one-piece multi-function support (60) which houses the filtration assembly (36), a shock cavity (68) which houses an upper section (37) of the shock block (38), a lateral housing (70) which houses the rotating stop (30) and a lateral flange (72) for mounting on the structural element (22), and in that it comprises an upper element (94) for pre-stressing the filtration assembly (36) and a nut (100) for fixing the support (60) to the structural element (22).