Piston Hydraulic Accumulator Port Magnet for Particle Separation
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Solution Overview
Problem
Hydraulic accumulators are prone to failure due to metallic particulate contamination, which can damage sealing systems and prevent the separating piston from functioning, especially in high-pressure and high-flow conditions, despite the use of filter devices.
Innovation Solution
Incorporating a magnetic-field-generating device, such as a permanent magnet, in the fluid port to separate magnetizable particles from the fluid flow, ensuring they do not reach the sealing system of the separating piston.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If filter devices are used to clean particulate contamination from hydraulic oil, then the operating fluid is purified, but metallic particles can still pass through and damage the sealing system of the separating piston
Solution Approach 1:
A magnetic field is introduced as an intermediary between the fluid port and the separating piston sealing system. The magnetic field attracts and captures metallic particles from the hydraulic oil, preventing them from reaching the sealing system. This intermediary magnetic field acts as an additional protective barrier that complements the mechanical filtration system.
Solution Approach 2:
The patent replaces or supplements the purely mechanical filtration system with a magnetic field-based particle capture mechanism. Instead of relying solely on mechanical filters to remove all particulate contamination, the magnetic field provides a non-mechanical method to specifically target and capture metallic particles, thereby protecting the sealing system more effectively.
2Productivity
If the fluid port allows high flow rates, then productivity is improved, but the risk of particles damaging the sealing system increases
Solution Approach 1:
The magnetic field serves as an intermediary protective barrier positioned in the fluid port, allowing high flow rates to pass through while simultaneously capturing metallic particles. The magnetic field does not obstruct the flow path significantly but selectively captures particles, enabling both high productivity and sealing system protection to coexist.
3Reliability
If the magnetic field strength is increased to capture more particles, then particle removal effectiveness is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
Instead of generating a strong magnetic field throughout the entire accumulator, the magnetic field is localized specifically to the fluid port region where particles enter. This local concentration of magnetic field strength provides effective particle capture at the critical entry point while avoiding the need for a complex, high-power magnetic system throughout the entire device.
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
Prevents damage to the hydraulic accumulator components by effectively removing metallic particles, ensuring reliable operation and extending the service life of the hydraulic system.
Implementation Method 1
the fluid port comprises a magnetic-field-generating device, which is received in a fixed position in the fluid port and serves to separate magnetisable particles out of the fluid passing through the fluid port so as to purify said fluid
Data Source
AI summary
The disclosure relates to a hydraulic accumulator, in particular in the form of a piston-type accumulator, having a separating element which is arranged in an accumulator housing and fluid-tightly separates two fluid chambers, in particular a closed accumulator chamber comprising a working gas and a liquid chamber comprising an operating liquid such as hydraulic oil, from one another, wherein a fluid port is fluidically connected to one of the fluid chambers. The hydraulic accumulator is characterised in that the fluid port has a magnetic-field-generating device which is received in a fixed position in the fluid port and separates magnetizable particles out of the fluid passing through the fluid port, to purify said fluid.