Filter Apparatus with Tangential Inflow and Cyclone Bubble Removal
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Solution Overview
Problem
Existing filter systems release removed bubbles back into liquid tanks, which can cause issues like air suction into pumps, leading to temperature and pressure fluctuations and potential part damage.
Innovation Solution
A filter apparatus with a bubble removing portion that creates a swirling flow to collect bubbles, a retainer plate to retain them, and a filter element to ensure bubbles are not released into the liquid tank, utilizing a tangentially inflowing pipe and strategically positioned retainer and filter elements to prevent bubble passage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If bubbles are removed by a bubble removing device and discharged into a hydraulic oil tank, then bubbles can be removed from the liquid, but the removed bubbles are released into the interior of the hydraulic oil tank and may be suctioned from the strainer and fed into the pump
Solution Approach 1:
The invention extracts the harmful bubbles from the liquid stream using a cyclone separator, and crucially, discharges them into the atmosphere or a separate containment space rather than returning them to the hydraulic oil tank. This extraction and isolation principle prevents the bubbles from re-entering the hydraulic system through the strainer and pump.
Solution Approach 2:
The invention introduces an intermediary discharge mechanism (such as an atmosphere vent or separate containment chamber) between the bubble removal device and the hydraulic oil tank. This intermediary prevents direct communication between the bubble separation zone and the hydraulic system, ensuring removed bubbles cannot be re-suctioned by the pump.
2Reliability
If a filter element is provided to filter the liquid, then the liquid can be filtered, but bubbles may pass through the filter element and be released inside the liquid tank
Solution Approach 1:
The invention performs preliminary bubble removal action before the liquid reaches the filter element. By using the cyclone separator to extract bubbles from the liquid stream upstream of the filter, the system prevents bubbles from reaching and passing through the filter element, thereby eliminating the risk of bubbles being released into the tank after filtration.
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
Effectively removes bubbles from liquids without releasing them into the liquid tank, preventing air suction and related damage, ensuring a stable hydraulic system.
Implementation Method 1
an inflow pipe that is provided to a side surface of the filter case, is configured to cause a liquid to flow into the filter case from a tangential direction at any point on the side surface of the filter case, and produce a swirling flow in the liquid that flowed thereto
Implementation Method 2
a retainer plate that is provided to an interior of the filter case and is configured to retain bubbles collected in a center of the swirling flow by the swirling flow
Data Source
AI summary
A liquid is made to flow into a filter case from a tangential direction at any point on a side surface of the filter case and produces a swirling flow. Bubbles collected in a center of the swirling flow are retained by a retainer plate, thereby removing the bubbles from the liquid. A filter element filters the liquid from which the bubbles were removed.