Integrated Hydraulic Supply Unit for Compact Machine Assembly
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The installation of hydraulic circuits for hydraulic machines is complex due to the need for separate connections of the pump drive and hydraulic pipes, making assembly tedious, especially when integrated into vehicles with numerous components.
Innovation Solution
A power supply unit that integrates the pump device and hydraulic valve device within a single housing, featuring mechanical and hydraulic ports, allowing for compact and simplified connections to the hydraulic machine, reducing external fluid connections and pressure drops.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the pump device and hydraulic valve device are installed separately with individual connections, then the installation flexibility is higher, but the assembly process becomes tedious and complex
Solution Approach 1:
The patent combines the pump device and hydraulic valve device into a single integrated power supply unit with a common housing. The pump device and hydraulic valve device are positioned within the same housing and share common fluid conduits, eliminating the need for separate external connections. This integration directly resolves the technical contradiction by simplifying the assembly process while maintaining functional separation of the pump and valve devices.
2Reliability
If multiple external fluid lines and fittings are used for connections, then the system is more adaptable to different configurations, but pressure losses increase
Solution Approach 1:
The patent integrates the hydraulic valve device directly within the pump housing, allowing fluid to flow internally between the pump outlet and valve inputs without external piping. This internal fluid path elimination reduces the number of fittings and external lines, thereby minimizing pressure losses while maintaining system adaptability through the valve device's internal configuration options.
3Area of stationary object
If the pump and valve devices are mounted separately, then the maintenance of individual components is easier, but the overall system footprint increases
Solution Approach 1:
The patent positions the hydraulic valve device within the housing that contains the pump device, creating a nested arrangement where the valve device occupies internal space within the pump housing. This nesting approach minimizes the overall system footprint by utilizing the existing housing volume, while the modular design allows for selective removal and maintenance of individual components without requiring complete system disassembly.
Data Source
Figure 1~2
Figure 3
Figure 4~5
AI summary
The supply unit (10) comprises a casing (11) containing a pump device (14) and having a motion input (Ml) for mechanically driving the pump device, and a first and a second hydraulic power port (HP1, HP2). The casing contains a hydraulic valve device (16) for selective connection between the pump device (14) and the hydraulic power ports (HP1, HP2). The unit is configured for connection to control means (20) of the hydraulic valve device (16) and for adoption of a resting state in which the first and second hydraulic power ports (HP1, HP2) are subject to a common resting pressure and an activated state in which the first and second hydraulic power ports are respectively subject to a high pressure and a low pressure of the pump device.