Regulating valve, particularly for regulating the flow of fluids in refrigeration systems
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United States of America Patent
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Aug 7, 2012
Grant Date -
Feb 18, 2010
app pub date -
Aug 10, 2009
filing date -
Aug 18, 2008
priority date (Note) -
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Abstract
A regulating valve for regulating the flow of fluids in refrigeration systems has a valve body that has an inlet and an outlet for fluid, connected by a connecting opening, a flow control device for the opening, which is inserted in the valve body and comprises a flow control piston for the connecting opening that is driven by an electric motor along a sliding axis between an open position and a blocking position of the connecting opening. The flow control piston has openings for connection between a front face, which is directed toward the connecting opening, and a rear face thereof for balancing pressures applied by the fluid to the front face, and a head dome facing the connecting opening and forming the front face, the connection openings comprising a plurality of holes passing through the dome.
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