Piezo pump and pressurized circuit provided therewith
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United States of America Patent
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Issued Date -
Oct 15, 2015
app pub date -
Apr 9, 2015
filing date -
Apr 10, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A piezo pump for use in a pressurized circuit includes a pump chamber with an inlet provided with a one way inlet valve, for connection to a feeding line of the pressurized circuit and an outlet provided with a one way outlet valve, for connection to a discharge line of the pressurized circuit and a piezo pump diaphragm closing one end of the pump chamber. A pressure chamber, which can function as a second pump chamber if desired, is defined at the side of the piezo pump diaphragm facing away from the pump chamber, wherein said pressure chamber is connected to a pressure source, which may be the feeding line.
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