Oilproof Vent Valve Assembly With Self-Draining Filter Element
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Solution Overview
Problem
Conventional oilproof ventilating valves in oil tanks suffer from frequent maintenance needs due to filter cartridge saturation, leading to reduced filtering and ventilating performance and shortened service life.
Innovation Solution
An oilproof assembly with a valve body, a first filter element, a limiting part, and an elastic part, where the elastic part extrudes excess oil from the filter element when it swells, maintaining optimal filtering and ventilating performance without frequent maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a filter cartridge is used to filter oil gas or oil mist in the tank body, then the air permeability of the waterproof ventilating film is protected from being affected by oil gas accumulation, but the filter cartridge becomes saturated over time, causing insufficient filtering effect and requiring frequent maintenance or replacement
Solution Approach 1:
The patent applies the discarding and recovering principle by enabling the filter element to automatically discharge accumulated oil through a discharge channel. When the filter element becomes saturated with oil, the oil is expelled through the discharge channel back to the tank body, allowing the filter element to be reused without frequent replacement. This resolves the contradiction by recovering the filtering capability of the filter element through automatic oil discharge, thereby extending its service life while maintaining reliable filtering performance.
2Reliability
If the filter cartridge is replaced or actively discharged to ensure filtering and ventilating effects, then the performance of the oilproof vent valve is maintained, but the maintenance cost is increased
Solution Approach 1:
The patent applies the self-service principle by designing an automatic oil discharge mechanism that operates without external intervention. The elastic component automatically pushes accumulated oil out through the discharge channel when the filter element becomes saturated, enabling the system to maintain its filtering and ventilating performance without requiring manual maintenance or replacement of the filter cartridge. This eliminates maintenance costs while ensuring continuous reliable performance.
3Quantity of substance
If the filter cartridge is not maintained thoroughly, then maintenance cost is reduced, but the service life of the oilproof vent valve and even terminal product is shortened
Solution Approach 1:
The automatic oil discharge mechanism enables the system to maintain itself without external maintenance intervention. The elastic component continuously pushes oil out through the discharge channel, preventing oil saturation that would otherwise degrade performance and shorten service life. This self-service mechanism ensures long-term reliability of the oilproof vent valve while eliminating the need for costly maintenance or replacement.
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 solution maintains effective filtering and ventilating performance by automatically extruding excess oil, reducing maintenance costs and extending the service life of the oilproof assembly and associated devices.
Implementation Method 1
an elastic part arranged between the first filter element and the limiting part and configured such that after the first filter element absorbs oil to swell, at least part of oil absorbed in the first filter element is capable of being extruded by a thrust of the elastic part
Data Source
AI summary
Disclosed are an oilproof assembly, an oilproof vent valve, and a device with an oil tank. The oilproof assembly includes: a valve body, wherein a cavity is formed in the middle, the valve body includes a first end and a second end; a first filter element arranged in the cavity at the first end; a limiting part arranged in the cavity at the second end; and an elastic part arranged between the first filter element and the limiting part and configured to apply a thrust to the filter element after the first filter element absorbs oil to swell, so that at least part of oil absorbed in the first filter element can be extruded by the thrust of the elastic part. According to the oilproof assembly, the oilproof vent valve, and the device with the oil tank, the maintenance cost can be reduced, and the service life can be prolonged.