Annular Deaeration Channel Using Pressure Gradient Bubble Venting
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Solution Overview
Problem
Existing deaeration devices require complex structures and airtight housings, necessitating the use of pumps for deaeration, which increases complexity and size.
Innovation Solution
A deaeration device with an annular channel and a partition that forms a pressure gradient using an actuator to rotate channel forming members, allowing air bubbles to naturally rise to an air vent, eliminating the need for a vacuum pump.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a decompressor pump is used to reduce pressure inside the housing for deaeration, then air bubbles can be discharged into the low-pressure housing, but the device complexity and size increase
Solution Approach 1:
The patent extracts the deaeration function from the main fluid delivery system by providing a separate deaeration chamber that is intermittently connected to the fluid passage. This allows air bubbles to be separated and discharged independently without requiring a decompressor pump, thus reducing device complexity while maintaining deaeration effectiveness
Solution Approach 2:
The deaeration chamber utilizes the fluid pressure itself to discharge air bubbles externally through a communication hole, rather than requiring an active decompressor pump. The system uses its own operating pressure to achieve deaeration, eliminating the need for additional active components
2Reliability
If a decompressor pump is used to reduce pressure inside the housing for deaeration, then air bubbles can be discharged into the low-pressure housing, but the device size increases
Solution Approach 1:
The patent extracts the deaeration function from the main fluid delivery system by providing a separate deaeration chamber that is intermittently connected to the fluid passage. This allows air bubbles to be separated and discharged independently without requiring a decompressor pump, thus reducing device complexity while maintaining deaeration effectiveness
Solution Approach 2:
The deaeration chamber utilizes the fluid pressure itself to discharge air bubbles externally through a communication hole, rather than requiring an active decompressor pump. The system uses its own operating pressure to achieve deaeration, eliminating the need for additional active components
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 device simplifies the configuration by using a pressure gradient to remove air bubbles without a vacuum pump, ensuring effective deaeration with reduced complexity and size.
Implementation Method 1
an actuator that causes at least one of the inner peripheral portion, the outer peripheral portion, and the pair of side walls to rotate relatively to the partition, in a circumferential direction of the annular channel, to form a gradient in pressure of the fluid in the annular channel
Implementation Method 2
as one can see from a well-known phenomenon that, when a liquid containing air bubbles is poured into a glass, the bubbles naturally rise to the water surface, bubbles contained in a fluid are naturally carried from a high-pressure side to a low-pressure side of the fluid
Data Source
AI summary
A deaeration device includes: a channel forming member that defines an annular channel; an inlet port through which a fluid flows into the annular channel; an outlet port through which the fluid flows out of the annular channel; a partition that partially partitions the annular channel; an actuator that causes at least a part of the channel forming member to rotate relatively to the partition in the circumferential direction of the annular channel, to form a gradient in the pressure of the fluid in the annular channel; and an air vent that opens to the annular channel at a position where the pressure of the fluid is lower than the pressure of the fluid in the outlet port, and that releases the air bubbles contains in the fluid, to outside of the annular channel.