Laminated Hose Wire Layout for Pressure and Oscillation Durability
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Solution Overview
Problem
Conventional laminated hoses face a trade-off between pressure-resistant performance and oscillating durability performance, as increasing reinforcing wire density improves pressure resistance but reduces flexibility and durability, while reducing wire density compromises both pressure resistance and manufacturing alignment.
Innovation Solution
A laminated hose design with a wire density of 90% or more but less than 96% in reinforcing layers, where density decreases from the innermost to outermost layers, and a winding angle of 40° to 70°, ensuring both pressure-resistant and oscillating durability performance without exceeding 100% wire density when bent.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the density of reinforcing wires is increased to improve pressure-resistant performance, then pressure-resistant performance is improved, but flexibility and oscillating durability performance are reduced
Solution Approach 1:
The patent applies parameter changes by precisely controlling the wire density within the range of 90% or more and less than 96%, and by optimizing the winding angle between 40° to 70°. These parameter optimizations balance the competing requirements of pressure resistance and flexibility, resolving the technical contradiction between strength and ease of operation.
2Strength
If the density of reinforcing wires is increased to improve pressure-resistant performance, then pressure-resistant performance is improved, but oscillating durability performance is reduced
Solution Approach 1:
The patent optimizes wire density parameters to a specific range (90% or more and less than 96%) and controls winding angles (40° to 70°) to simultaneously achieve both pressure-resistant performance and oscillating durability performance, resolving the contradiction between strength and reliability.
3Reliability
If the density of reinforcing wires is reduced to improve flexibility and oscillating durability performance, then oscillating durability performance is improved, but pressure-resistant performance is reduced
Solution Approach 1:
The patent determines optimal parameter ranges for wire density (90% or more and less than 96%) and winding angle (40° to 70°) that simultaneously satisfy both oscillating durability and pressure resistance requirements, resolving the technical contradiction between reliability and strength.
4Reliability
If the density of reinforcing wires is reduced to improve flexibility, then oscillating durability performance is improved, but manufacturing alignment becomes more difficult
Solution Approach 1:
The patent specifies wire density within the range of 90% or more and less than 96%, which provides sufficient density for manufacturing alignment while maintaining flexibility and oscillating durability performance, thus resolving the contradiction between reliability and manufacturing precision.
Data Source
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 (ρ) of the reinforcing layer (12) in all of the plurality of reinforcing layers (12) is 90% or more and less than 96%.