Electronic Hydraulic Pump Pressure Setting for Tool Adaptability
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Solution Overview
Problem
Existing hydraulic pumps lack an efficient mechanism for electronically adjusting and maintaining hydraulic fluid pressure, which is crucial for optimal operation of hydraulic tools.
Innovation Solution
A hydraulic pump system with a bladder, manifold, and controller that allows for electronic adjustment of hydraulic fluid pressure through a user interface, enabling precise control of fluid flow direction and pressure settings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a hydraulic pump uses a fixed pressure setting mechanism, then the device complexity is reduced, but the adaptability and versatility for different hydraulic tool requirements deteriorates
Solution Approach 1:
The patent implements a dynamic pressure control system where the pump assembly can adjust its operating pressure on-demand based on user input received via the handle assembly. The controller modifies pump operation in real-time to achieve different pressure settings, transforming a static fixed-pressure system into a dynamic adjustable-pressure system that adapts to different hydraulic tool requirements.
Solution Approach 2:
The patent changes the operating pressure parameter of the hydraulic pump through electronic control. The controller receives user input and adjusts the pump assembly's pressure output by modifying operational parameters such as motor speed or valve positioning, enabling the system to deliver variable pressure settings rather than a fixed pressure level.
2Ease of operation
If a hydraulic pump implements electronic pressure adjustment, then the ease of operation is improved, but the device complexity increases
Solution Approach 1:
The patent replaces traditional mechanical pressure adjustment mechanisms with an electronic control system. Instead of using manual mechanical valves or adjusters, the system employs an electric motor-driven pump assembly controlled by an electronic controller that receives input from the handle assembly, substituting mechanical adjustment with electronic control for improved ease of operation.
Solution Approach 2:
The patent introduces a controller as an intermediary between the user input (handle assembly) and the pump assembly. This intermediary component processes user commands and translates them into appropriate pump operation adjustments, simplifying the user interface while managing the complexity of pressure control through a dedicated control unit.
3Reliability
If a hydraulic pump uses a bladder for fluid storage, then the reliability of fluid supply is improved, but the volume occupied by the pump increases
Solution Approach 1:
The patent integrates the bladder within the pump assembly housing, nesting the fluid storage component inside the existing pump structure. This nesting arrangement allows the bladder to be contained within the pump's internal volume rather than requiring external mounting space, thereby maintaining reliable fluid supply while minimizing the overall volume occupied by the pump assembly.
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 precise and adjustable hydraulic fluid pressure control, enhancing the performance and versatility of hydraulic tools by allowing operators to set and save preferred pressure settings.
Implementation Method 1
a pump assembly that pumps hydraulic fluid from the bladder through the work port
Implementation Method 2
a bladder that stores hydraulic fluid
Data Source
AI summary
A hydraulic power tool system includes a hydraulic pump, a hydraulic tool coupled to the hydraulic pump, a user interface configured to receive an input corresponding to a desired change in a set pressure of the hydraulic pump, and a controller in communication with the user interface and the hydraulic pump. The controller updates the set pressure of the hydraulic pump from a first set pressure to a second set pressure based on the desired change and controls the hydraulic pump until the second set pressure is reached.