Water flow control valve
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United States of America Patent
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Jun 5, 2012
Grant Date -
Jan 22, 2009
app pub date -
Dec 29, 2006
filing date -
Feb 22, 2006
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention provides a water flow control valve, which has an improved structure, thus reducing manufacturing costs and increasing the reliability of products. To achieve the above-mentioned purpose, the water flow control valve includes synchronous motors (20), which generate drive forces in directions opposite each other, an eccentric cam (30), which is provided between the synchronous motors (20) and converts a direction in which the drive force is transmitted, a power transmission unit (50), which is in rolling contact with the eccentric cam and adjusts the amount of fluid that flows through a housing using operation of the eccentric cam, and ratchet gears (40), which are provided between the synchronous motors and the eccentric cam and transmit the drive force of one of the synchronous motors while preventing the drive force of the remaining synchronous motor from being transmitted in a no-load operation manner.
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