Parallel Hydraulic Hoses for High-Flow Flexible Routing
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Solution Overview
Problem
Hydraulic hoses with large throughflow cross sections are disproportionately expensive, rigid, and prone to material wear due to increased material usage and pressure-induced forces, making them costly and difficult to manufacture and handle.
Innovation Solution
A hydraulic system comprising multiple hose lines arranged parallel to each other, dividing the volume flow into smaller sub-flows, reducing the inner surface area and material stress, and allowing for a compact, flexible, and cost-effective design, with adaptable lengths to cancel out pressure pulsations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a single hose line with large throughflow cross section is used, then the desired volume flows can be achieved, but the hose line becomes disproportionately expensive, rigid, and prone to material wear
Solution Approach 1:
The single large throughflow cross section hose line is segmented into multiple smaller hose lines arranged in parallel. Each smaller hose line has a reduced throughflow cross section, which decreases the inner surface area subjected to pressure, reduces material stress, and lowers manufacturing costs while collectively maintaining the required total volume flow capacity
2Productivity
If a single hose line with large throughflow cross section is used, then the desired volume flows can be achieved, but the hose line has larger minimum bending radius and reduced flexibility
Solution Approach 1:
The single large hose line is divided into multiple smaller hose lines. Each smaller hose line has a smaller minimum bending radius due to its reduced diameter, enabling more flexible routing and easier installation in compact spaces while collectively handling the required volume flow
3Productivity
If a single hose line with large throughflow cross section is used, then the desired volume flows can be achieved, but the wall thickness must increase leading to increased weight
Solution Approach 1:
The single large hose line is replaced by multiple smaller hose lines. Each smaller hose line requires less wall thickness to withstand the same pressure due to its smaller diameter, reducing the amount of material used per hose line. Although there are multiple hose lines, the total material usage and weight are reduced compared to a single large hose line with proportionally thicker walls
4Productivity
If a single hose line with large throughflow cross section is used, then the desired volume flows can be achieved, but the inner surface area subjected to pressure increases causing pronounced material loading and wear
Solution Approach 1:
The large inner surface area of a single hose line is segmented into multiple smaller inner surface areas. Each smaller hose line experiences the same pressure but has reduced total surface area, which decreases the cumulative material loading and wear on the hose material, improving reliability and service life
Data Source
AI summary
A hydraulic system has a fluid path which connects two system components fluidically to one another and which comprises a hydraulic hose. It is known to form a fluid path between two components of a hydraulic system, for example between a pump and a control block, by a single hydraulic hose which is designed in accordance with the maximum volume flow and the maximum pressure. A hydraulic hose for large volume flows and high pressures is disproportionately expensive relative to a hydraulic hose for smaller volume flows and, on account of its larger internal and external diameters, has a larger minimum bending radius than a hydraulic hose for smaller volume flows. In order to provide a cost-effective and compact structure, a hydraulic system according to the disclosure has the fluid path formed by at least two hydraulic hoses arranged fluidically parallel to one another.