Plastic Stabilizer Flange with Vulcanized Elastomer
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Solution Overview
Problem
Conventional stabilizer units for vehicles, which use metal flanges and elastomer rings, are heavy, expensive, and can generate noise due to sliding issues, necessitating a lighter and quieter solution.
Innovation Solution
A stabilizer unit featuring a plastic flange with a vulcanized elastomer layer and optional shim, made from thermoplastic materials like polyamide or polybutylene terephthalate, providing a 40% mass reduction and eliminating sliding noise through a U-shaped groove and cradle configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal flanges are used in the bearing, then mechanical strength is ensured, but the mass of the bearing increases significantly
Solution Approach 1:
The patent applies composite materials by combining plastic material for the flange with reinforcing fibers (such as glass fibers, carbon fibers, or aramid fibers) to create a fiber-reinforced plastic flange. This composite structure provides mechanical strength comparable to metal while significantly reducing the mass of the bearing, directly resolving the contradiction between strength and weight.
2Reliability
If conventional metal flanges with elastomer rings are used, then the stabilizer bar is secured, but sliding occurs generating noise
Solution Approach 1:
The patent uses a composite structure combining plastic flange material with elastomeric material to create a bearing that secures the stabilizer bar while eliminating sliding noise. The elastomeric component provides friction and damping to prevent sliding, while the plastic structure maintains structural integrity.
3Weight of moving object
If plastic material is used for the flange, then mass is reduced by 40%, but mechanical properties must be maintained
Solution Approach 1:
The patent employs fiber-reinforced plastic materials where fibers (glass, carbon, or aramid) are embedded in a plastic matrix to enhance mechanical properties. This composite approach allows achieving metal-level strength while maintaining the weight advantages of plastic, directly addressing the contradiction between mass reduction and mechanical property maintenance.
Solution Approach 2:
The patent applies local quality by concentrating reinforcing fibers in specific high-stress areas of the flange structure. The fiber reinforcement is strategically positioned to provide enhanced mechanical properties where needed while keeping other areas lightweight, optimizing the balance between strength and mass reduction.
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 solution significantly reduces the mass and noise of the stabilizer unit while maintaining mechanical integrity, allowing the stabilizer bar to move freely and return to its rest position effectively, facilitating assembly and stress distribution.
Implementation Method 1
secured to the flange by means of a vulcanized elastomer layer
Implementation Method 2
the elastomer layer is placed around the stabilizer bar and then clamped by the flange that then blocks it by compression
Data Source
AI summary
A stabilizer unit for a vehicle and a method for manufacturing such a stabilizer unit, the stabilizer unit comprising a stabilizer bar, at least one bearing including a flange, made of plastic material, including at least one retaining portion and one groove including a cradle portion, wherein the stabilizer bar passes through the groove of the flange and is secured to the flange by means of a vulcanized elastomer layer.