Multilayer Hose Wire Density Layout for Pressure and Flex Durability
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Solution Overview
Problem
Conventional laminated hoses face a trade-off between pressure-resistant performance and oscillating durability performance due to the increased flexibility reduction caused by higher reinforcing wire density, which also complicates even wire alignment during manufacturing.
Innovation Solution
A laminated hose design with varying wire densities across reinforcing layers, where the density decreases from the innermost to the outermost layer, combined with a winding angle of 40° to 70°, particularly 50° to 60°, ensures both pressure-resistant and oscillating durability performance while facilitating even wire alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the density of reinforcing wires is increased to ensure pressure-resistant performance, then pressure-resistant performance is improved, but flexibility is reduced and oscillating durability performance deteriorates
Solution Approach 1:
The patent applies different wire densities to different layers: the innermost layer has higher wire density for pressure resistance, while outer layers have progressively lower wire density for flexibility. This local differentiation resolves the contradiction by optimizing each layer's density according to its specific functional requirements.
Solution Approach 2:
The reinforcing structure is segmented into multiple layers with distinct wire density characteristics. The innermost layer uses higher density for strength, while outer layers use lower density for flexibility, allowing the system to simultaneously achieve both pressure resistance and flexibility through layered segmentation.
2Strength
If the density of reinforcing wires is increased to ensure pressure-resistant performance, then pressure-resistant performance is improved, but oscillating durability performance deteriorates
Solution Approach 1:
The patent applies different wire densities to different layers: the innermost layer has higher wire density for pressure resistance, while outer layers have progressively lower wire density for oscillating durability. This local differentiation resolves the contradiction by optimizing each layer's density according to its specific functional requirements.
Solution Approach 2:
The reinforcing structure is segmented into multiple layers with distinct wire density characteristics. The innermost layer uses higher density for strength, while outer layers use lower density for oscillating durability, allowing the system to simultaneously achieve both pressure resistance and oscillating durability through layered segmentation.
3Reliability
If the density of reinforcing wires is reduced to improve flexibility and oscillating durability, then oscillating durability performance is improved, but pressure-resistant performance deteriorates
Solution Approach 1:
The patent applies different wire densities to different layers: outer layers have lower wire density for oscillating durability, while the innermost layer has higher wire density for pressure resistance. This local differentiation resolves the contradiction by optimizing each layer's density according to its specific functional requirements.
4Ease of operation
If the density of reinforcing wires is reduced to improve flexibility, then oscillating durability performance is improved, but manufacturing alignment difficulty increases
Solution Approach 1:
The patent applies different wire densities to different layers, with outer layers having lower density for flexibility and the innermost layer having higher density for manufacturing alignment. This local differentiation resolves the contradiction by optimizing each layer's density according to its specific functional requirements.
Data Source
Figure 1
Figure 2~4
AI summary
To provide a laminated hose capable of achieving both pressure-resistant performance and oscillating durability performance. The laminated hose (1) comprises a plurality of reinforcing layers (12) laminated to the hose body (11), and each of the plurality of reinforcing layers (12) includes a reinforcing wire (13). A wire density (p) of the reinforcing layer (12) in all of the plurality of reinforcing layers (12) is 90% or more and less than 96%.