Tank-Mounted Hydraulic Pump Modules for Low-Loss Fluid Supply
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Solution Overview
Problem
Existing hydraulic pump systems in working vehicles are inefficient due to energy losses in long piping and require complex disconnection procedures for maintenance, especially when driven by internal combustion engines, leading to unnecessary energy consumption and reduced efficiency.
Innovation Solution
A self-contained hydraulic pump system with attachable/detachable pump modules mounted directly to a housing within a tank, reducing piping length, energy losses, and simplifying maintenance by eliminating the need for complex disconnections, and utilizing electric motors for independent flow control and variable speed operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the hydraulic pump is mounted separately from the tank with long piping connections, then the pump can be independently positioned, but energy losses increase due to long piping length
Solution Approach 1:
The patent merges the hydraulic pump with the tank by providing mounting portions that directly attach the pump to the tank body, eliminating the need for separate piping connections. This integration reduces energy losses associated with long piping while maintaining independent positioning capability through the mounting portion design.
2Use of energy by moving object
If the hydraulic pump is driven by an internal combustion engine, then the pump can be continuously operated, but unnecessary energy consumption occurs when hydraulic fluid flow is not required
Solution Approach 1:
The patent applies dynamics by making the pump swash plate angle adjustable, allowing the pump to dynamically change its displacement and flow output according to actual hydraulic system demands. This enables the pump to operate efficiently by matching output to demand rather than running at constant high output.
Solution Approach 2:
The patent changes the operational parameters of the pump by varying the swash plate angle, which directly controls the pump's displacement and flow rate. This parameter adjustment allows the system to optimize energy consumption by reducing pump output when full flow is not required.
3Ease of repair
If the pump is integrated into the tank with mounting portions, then maintenance and replacement become simpler, but the structural design becomes more complex
Solution Approach 1:
The patent segments the pump assembly from the tank by providing dedicated mounting portions with mounting holes and attachment features. This segmentation allows the pump to be easily detached and replaced as a separate component while maintaining a relatively simple overall structure through standardized mounting interfaces.
Data Source
AI summary
A hydraulic pump system includes a housing defining a tank for containing hydraulic fluid in use; one or more pump modules each comprising a hydraulic pump for supplying hydraulic fluid from the tank to a hydraulic system; and a mounting arrangement; wherein the or each pump module is mounted to the housing by the mounting arrangement.