Hydraulic system
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Solution Overview
Problem
Hydraulic systems require multiple electrically operated switching devices, which complicates the system and makes independent regulation of pump pressure difficult, as well as limiting efficiency optimization for one direction of rotation without impairing the other.
Innovation Solution
A hydraulic system with a speed-controlled circulating pump unit and a mechanical switching device that uses hydraulic forces to switch between positions, eliminating the need for separate electrical drives and allowing optimization of speed and pressure changes to control the switching device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple electrically operated switching devices are used to control hydraulic circuits, then the system can achieve precise control and switching functionality, but the system complexity increases and independent pressure regulation becomes difficult
Solution Approach 1:
The patent combines multiple switching devices and the circulating pump into a single integrated control unit. The microprocessor controller consolidates the control functions of multiple electrically operated switching devices, while the pump assembly integrates the circulating pump with the control electronics, reducing overall system complexity while maintaining precise control capabilities
Solution Approach 2:
The circulating pump assembly serves multiple functions: it acts as both the fluid circulation device and the control unit housing, while the microprocessor controller handles both pump speed regulation and switching device control. This multi-functionality reduces the number of separate components needed in the system
2Productivity
If the circulating pump speed is increased to improve flow rate, then productivity increases, but energy consumption increases
Solution Approach 1:
The patent implements dynamic speed control of the circulating pump using a microprocessor controller that adjusts the pump speed based on real-time system conditions, flow requirements, and pressure feedback. This allows the pump to operate at optimal speeds rather than constant high speed, maintaining productivity while reducing energy consumption during low-demand periods
Solution Approach 2:
The system changes the operating parameters of the circulating pump dynamically, adjusting speed, flow rate, and pressure based on system needs. The microprocessor controller monitors and modifies these parameters to achieve optimal performance-efficiency balance, reducing energy consumption while maintaining required productivity levels
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
This configuration reduces the number of electrically operated devices, enables independent pressure regulation, and optimizes efficiency in both directions of rotation without affecting normal system operation.
Implementation Method 1
the circulating pump unit circulates a liquid, for example water, in the hydraulic circuit
Implementation Method 2
at least one mechanical switching device is arranged in the hydraulic circuit, which is acted upon by pressure changes of the liquid or the fluid located in the hydraulic circuit
Data Source
Figure 1
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AI summary
The invention relates to a hydraulic system with at least one circulating pump unit (2) provided with a speed controller (4, 26), at least one hydraulic circuit (A, B) connected to the circulating pump unit (2) and at least one of a fluid in the hydraulic circuit Pressure-loaded mechanical switching device (86, 88; 120, 122; 120", 122"), which can be moved into at least two different switching positions, the at least one mechanical switching device (28; 86, 28; 120, 122) being controlled by the circulating pump unit ( 2) can be moved via the fluid by means of a hydraulic coupling and the speed controller is designed to cause the switching device (86, 88; 120, 122,120", 122") to move by adjusting the speed of the circulating pump unit via the hydraulic circuit at least one the switching device (86, 88; 120, 122,120", 122") acting and causing a movement of the switching device (86, 88; 120, 122,120", 122") existing hydraulic power is generated.