Spiral Reinforced High-Pressure Hose for Burst Pressure and Bendability
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
High-pressure hoses used in applications with large movements face challenges in achieving both high burst pressure and bendability due to conflicting requirements of implant density, where higher density improves burst pressure but lowers bendability, and vice versa.
Innovation Solution
A high-pressure hose design featuring four or more reinforcing layers with spiral reinforcing materials, where the pitch length of adjacent layers decreases from the innermost to the outermost layer, optimizing the pitch length and outer diameter dimensions to balance internal pressure distribution and maintain bendability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the implant density of reinforcing materials is increased to improve burst pressure, then the burst pressure resistance is improved, but the bendability of the hose deteriorates
Solution Approach 1:
The patent applies different pitch lengths to different layers of reinforcing materials. The inner layer has a longer pitch length (lower implant density) to maintain bendability, while the outer layer has a shorter pitch length (higher implant density) to provide burst pressure resistance. This local differentiation of quality allows each layer to optimize for its specific function without compromising the other.
Solution Approach 2:
The patent resolves the contradiction by moving from a single-dimensional solution (uniform implant density throughout) to a multi-dimensional solution (varying implant density across layers). By distributing reinforcing materials at different pitch lengths across multiple layers, the patent achieves both high burst pressure resistance and good bendability simultaneously.
2Strength
If the implant density of reinforcing materials is increased to improve burst pressure, then the burst pressure resistance is improved, but the amount of reinforcing material required increases
Solution Approach 1:
The patent concentrates the reinforcing material more efficiently by placing it where it is most needed - in the outer layer with shorter pitch length for burst pressure resistance - while using less material in the inner layer with longer pitch length. This localized quality distribution optimizes material usage and reduces the total amount of reinforcing material required.
Solution Approach 2:
The patent changes the pitch length parameter across different layers to optimize material efficiency. By varying the pitch length from the inner layer to the outer layer, the patent achieves the required burst pressure resistance with a more efficient distribution of reinforcing materials, thereby reducing the total quantity needed.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A high-pressure hose relating to the present disclosure has, within a hose main body, four or more reinforcing layers at which linear reinforcing materials extend in spiral shapes, wherein, at two reinforcing layers that are adjacent in a hose radial direction, a pitch length of the reinforcing material at the reinforcing layer that is disposed at an outer side is shorter than a pitch length of the reinforcing material at the reinforcing layer that is disposed at an inner side.