Marine hose
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Solution Overview
Problem
Existing marine hoses face challenges in ensuring sufficient impact absorption performance while minimizing the burden on reinforcing layers when the main reinforcing layer group is damaged, particularly due to the limitations of carcass layer design and weight considerations.
Innovation Solution
A marine hose design featuring a main reinforcing layer group, a buoyant layer, and an auxiliary reinforcing layer group, where the buoyant layer is interposed between the main and auxiliary reinforcing layers to absorb impact forces, reducing the need for excessive strength in the auxiliary reinforcing layers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the number of carcass layers in the outer carcass layer group is increased to improve impact absorption performance, then the impact absorption performance is improved, but the weight of the marine hose increases
Solution Approach 1:
The patent introduces a buoyant layer as an intermediary component positioned between the main reinforcing layer group and the auxiliary reinforcing layer group. This buoyant layer serves as a mediator that absorbs impact forces when the main reinforcing layer group is damaged, thereby protecting the auxiliary reinforcing layer group from excessive impact loads and reducing the need for numerous heavy carcass layers.
Solution Approach 2:
The buoyant layer is positioned in advance between the reinforcing layer groups to provide cushioning protection. When damage occurs to the main reinforcing layer group, the buoyant layer is already in place to absorb the impact force, preventing direct transmission of shock to the auxiliary reinforcing layer group and eliminating the need for excessive reinforcement.
2Weight of moving object
If the specification of carcass cord in the outer carcass layer group is optimized to reduce weight, then the weight and cost are reduced, but the impact absorption performance is insufficient
Solution Approach 1:
The buoyant layer acts as an intermediary that absorbs impact energy before it reaches the auxiliary reinforcing layer group. This allows the carcass cords in the auxiliary layer to have reduced specification while still maintaining sufficient impact absorption performance, as the buoyant layer pre-absorbs a significant portion of the impact force.
Solution Approach 2:
The patent changes the physical state and properties by introducing a buoyant layer with different material characteristics between the reinforcing layers. This parameter change enables the system to achieve the same or better impact absorption performance with lighter auxiliary reinforcing layers, as the buoyant layer compensates for the reduced strength of the auxiliary carcass cords.
3Strength
If the auxiliary reinforcing layer group is designed with strong specifications to withstand impact, then the impact resistance is improved, but the number of auxiliary reinforcing layers must be increased
Solution Approach 1:
The buoyant layer serves as a protective intermediary that absorbs impact forces, thereby reducing the burden on the auxiliary reinforcing layer group. This allows the auxiliary layers to be designed with fewer layers and lower strength specifications while still maintaining adequate impact resistance, as the buoyant layer handles the majority of the impact absorption.
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 design ensures sufficient impact absorption performance while allowing for a reduction in the number of auxiliary reinforcing layers, resulting in a lighter marine hose.
Implementation Method 1
the impact force generated by a fluid flowing through a flow path when the main reinforcing layer group is damaged is absorbed and alleviated to some extent by the buoyant layer
Data Source
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AI summary
A marine hose that can ensure sufficient impact absorption performance while reducing the burden on a reinforcing layer for absorbing the impact when a main reinforcing layer group is damaged is provided. By layering, on a marine hose (1) of a floating type in which a main reinforcing layer group (4) and a buoyant layer (6) are layered in order from an inner circumferential side between an inner surface rubber layer (3) and a cover layer (8), an auxiliary reinforcing layer group (7) that assists the main reinforcing layer group (4) in at least one of a position inside the buoyant layer (6) or a position on an outer circumferential side of the buoyant layer (6), when the main reinforcing layer group (4) is damaged, the impact force generated by a fluid (L) flowing through a flow path (la) is absorbed and alleviated by the buoyant layer (6) interposed between the main reinforcing layer group (4) and the auxiliary reinforcing layer group (7), the impact force acting on the auxiliary reinforcing layer group (7) is reduced, and sufficient impact absorption performance is ensured.