Torque-Resisting Hose Mounting for Leak-Free Hydraulic Connections
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Solution Overview
Problem
Hydraulic hose connections in vehicle fluid power circuits experience torque-induced leaks and failures due to differential pressurization, which can compromise vehicle performance and safety, and existing solutions are costly in terms of engineering complexity and servicing time.
Innovation Solution
A torque-resisting hose mounting system that uses clamps with cuboidal jaws and a rigidifying member to connect flexible hoses to pipe fittings, allowing oppositely acting torques to cancel out, preventing rotation and reducing the need for rigid bracing, and accommodating manufacturing variations through resilient deformable materials and adjustable fastening systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If hose unions or terminations are supported essentially by the hoses connected to them, then the mounting structure is simplified and easier to install, but torque causes the unions or terminations to rotate leading to leaks and connection failures
Solution Approach 1:
The mounting uses a first clamp and second clamp positioned on opposite sides of the hose, with a rigidifying member interconnecting them, to create counterbalancing support that prevents torque-induced rotation while maintaining structural simplicity
Solution Approach 2:
The mounting structure is divided into separate functional components: first clamp, second clamp, and rigidifying member, allowing each to perform its specific function while maintaining overall simplicity and ease of installation
2Reliability
If rigid bracing is added to prevent torque-induced rotation, then connection reliability is improved, but engineering complexity and parts inventory requirements increase
Solution Approach 1:
Rigidity is applied locally only where needed - through the rigidifying member interconnecting the clamps - rather than requiring comprehensive rigid bracing throughout the entire mounting structure, thus improving reliability without excessive complexity
3Force
If complex bracing arrangements are implemented, then torque resistance is improved, but servicing time and machine maintenance requirements increase
Solution Approach 1:
The mounting is segmented into discrete, easily replaceable components (clamps and rigidifying member) that can be serviced independently, reducing maintenance time while providing adequate torque resistance
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 system effectively attenuates torque at hose connections, reducing leaks and failures without requiring rigid bracing, ensuring reliable operation and easy assembly, while accommodating various hose designs and pressurization scenarios.
Implementation Method 1
The first clamp includes a first pair of resiliently deformable clamp jaws for gripping the first rigid pipe
Data Source
Figure 1
Figure 2
Figure 3A
AI summary
A torque-resisting hose mounting (10) for attenuating torque arising when at least first and second flexible, fluid-carrying hoses (11,12) each connected in a fluid-communicating manner with a pipe fitting (16,22) are differentially pressurized comprises: a. a first pipe fitting (16) to which the first flexible, fluid-carrying hose (11) is directly or indirectly connected; b. a second pipe fitting (22) to which the second flexible, fluid-carrying hose (12) is directly or indirectly connected; c. a first clamp (31) gripping the first flexible hose (11) or a first hose extension connected thereto; d. a second clamp (32) gripping the second flexible hose (12) or a second hose extension connected thereto; and e. a rigidifying member (33) interconnecting the first and second clamps (31,32).