Multi-Pump Outrigger Hydraulics for Uniform Support Extension
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Solution Overview
Problem
Existing hydraulic systems for supporting vehicles or containers often result in asymmetrical lifting due to non-uniform load distribution, and they are either costly or require significant space, especially when trying to extend all floor supports simultaneously.
Innovation Solution
A hydraulic system with two or more support cylinders and pumps, where each support cylinder can be individually controlled through a network of main hydraulic lines and valves, allowing for precise and quick extension while accommodating different load conditions, and featuring a design that allows for emergency operation if one pump fails.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single hydraulic pump is used to extend all ground supports simultaneously, then the system is simple and compact, but the extension becomes asymmetrical due to non-uniform load distribution
Solution Approach 1:
The hydraulic system is segmented into multiple independent circuits, each controlled by a separate pump. This allows individual adjustment of hydraulic flow to each support cylinder, enabling uniform extension despite non-uniform load distribution while maintaining system simplicity
2Manufacturing precision
If separate hydraulic systems are provided for each ground support to allow individual control, then precise extension is achieved, but costs and space requirements increase significantly
Solution Approach 1:
Multiple hydraulic circuits are merged into a single integrated system with shared components such as the hydraulic reservoir, filter, and control unit. This reduces overall system complexity and space requirements while maintaining the ability to individually control each support cylinder through separate valves
3Manufacturing precision
If support cylinders are extended sequentially by closing valves to accommodate non-uniform loads, then uniform extension is achieved, but high structural loads are imposed on the vehicle
Solution Approach 1:
The system changes the parameter of hydraulic flow distribution by using independently controlled valves for each support cylinder. This allows simultaneous extension of all cylinders with adjusted flow rates, achieving uniform extension without the high structural loads associated with sequential extension
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
Enables uniform extension and retraction of support cylinders, reducing structural loads and allowing for flexible flow rates, thus providing a compact and efficient solution for vehicles and containers with non-uniform load distributions.
Implementation Method 1
a hydraulic system (10) comprises at least two hydraulic pumps (20A, 20B), each connected to a hydraulic main line (12A, 12B), with each of the at least two hydraulic pumps (20A, 20B) being assigned an electric motor (30)
Data Source
Figure 1~4
Figure 5
Figure 6A~6B
AI summary
Hydraulic systems for vehicles and containers are known, by means of which the vehicle's or container's outriggers can be extended hydraulically. Such a hydraulic system (10), as well as vehicles (100) and containers (110) from such a hydraulic system, are proposed. The hydraulic system (10) is provided to have at least two outrigger cylinders (60A, 60B, 60C, 60D) for extending outriggers (170). The hydraulic system (10) has at least two hydraulic pumps (20A, 20B), each connected to a main hydraulic line (12A, 12B), with at least one outrigger cylinder (60A, 60B) being provided on each of the two main hydraulic lines (12A). The hydraulic system (10) further has a main valve (40) by means of which the two main hydraulic lines (12A, 12B) can be connected to or disconnected from each other.