Hydraulic System With Piston Intensifiers For Pressure Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hydraulic systems require multiple pumps to meet different pressure and flow requirements, leading to increased costs and complexity, with high-efficiency pumps being expensive and inefficient pumps being used for high pressures.
Innovation Solution
A hydraulic system with a pump and two piston-type pressure intensifiers, each with alternative intensification ratios, allowing the same pump to supply fluid to subsystems with different pressure requirements, reducing costs and enabling steady flow at various pressures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple pumps are used to meet different pressure and flow requirements, then the system can satisfy diverse hydraulic needs, but the system costs and complexity increase
Solution Approach 1:
The single pump is designed to serve multiple functions by supplying hydraulic fluid to both the first subsystem (lower pressure) and the second subsystem (higher pressure) through the pressure intensifiers. The pump acts as a universal fluid source that, combined with the intensifiers, can meet diverse pressure and flow requirements that would traditionally require multiple specialized pumps.
Solution Approach 2:
The pressure intensifiers act as intermediary devices between the single pump and the two subsystems with different pressure requirements. They mediate the pressure transformation, taking hydraulic fluid from the pump at one pressure level and delivering it to subsystems at different pressure levels, thereby enabling a single pump to serve multiple pressure zones.
2Stress or pressure
If high-pressure capable pumps are used, then high pressure requirements are met, but efficiency decreases and costs increase
Solution Approach 1:
The pressure generation function is segmented between the pump and the pressure intensifiers. The pump handles only the lower pressure requirement efficiently, while the pressure intensifiers handle the pressure multiplication to achieve the higher pressure level. This segmentation allows each component to operate in its optimal efficiency range.
Solution Approach 2:
The patent replaces a single high-pressure pump (mechanical solution) with a combination of a lower-pressure pump and mechanical pressure intensifiers. The intensifiers use mechanical leverage through their piston and cylinder arrangements to multiply pressure, substituting the need for an oversized high-pressure pump.
3Device complexity
If a single pump is used for both subsystems, then costs are reduced, but meeting different pressure requirements becomes difficult
Solution Approach 1:
The patent uses hydraulic pressure intensifiers that utilize the incompressibility of hydraulic fluid to transmit and multiply force. The intensifiers use hydraulic principles where a small force applied to a small-area piston creates a large force on a large-area piston, achieving pressure multiplication while maintaining flow continuity from the single pump.
Solution Approach 2:
The pressure intensifiers change the pressure parameter of the hydraulic fluid while maintaining flow from the single pump. By using alternative intensification ratios, the system can adapt the output pressure parameter to match different subsystem requirements, enabling a single pump to serve multiple pressure zones.
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
The system reduces costs by using a single pump for multiple pressure requirements and ensures steady flow at different pressures, improving efficiency and simplifying the system's operation.
Implementation Method 1
two pressure intensifiers for increasing the pressure in the second subsystem to a second pressure level. The pressure intensifiers are piston-type pressure intensifiers
Implementation Method 2
a pump for supplying hydraulic fluid into the system at a first pressure level
Data Source
Figure 1
Figure 2a~2b
Figure 2c~2d
AI summary
The hydraulic system comprises a first subsystem (23) working within a first pressure range and a second subsystem (24) working within a second pressure range, where the upper limit is higher than the upper limit of the first pressure range. The system com- prises a pump (2) for supplying hydraulic fluid into the system and two pressure intensifiers (10, 10') for increasing the pressure in the second subsystem. The pressure intensifiers (10, 10') are piston-type pressure intensifiers with at least two alternative intensification ratios. The invention also concerns a method for operating a hydraulic system.