Hydraulic system for an installation for heating and generating domestic hot water
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United States of America Patent
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Issued Date -
Aug 20, 2020
app pub date -
Feb 14, 2020
filing date -
Feb 20, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Hydraulic system comprising a three-way valve, the three-way valve comprising a first port for the connection to a primary heat exchanger through the circulation pump, a second port and a third port for connection to the heating circuit and to a secondary heat exchanger, respectively. The three-way valve is switchable between two positions in which the first port is in fluid communication with the second port or with the third port. The three-way valve is responsive to the pressure applied by a circulation pump, and has a displaceable obstructing member that may be moved due to transitions between an off-state and an on-state of the circulation pump. The obstructing member comprises a pair of sealing surfaces facing away from each other and suitable to engage reciprocatingly respective opposed seats of the three-way valve.
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Family
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