Pressure-regulating reciprocating-piston pump having a magnet drive
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United States of America Patent
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Jun 7, 2016
Grant Date -
Dec 26, 2013
app pub date -
Aug 22, 2013
filing date -
Feb 25, 2011
priority date (Note) -
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Abstract
The invention relates to a reciprocating piston pump having a magnet drive and a first displacement chamber and a second displacement chamber, which are separated from each other by a piston, wherein both displacement chambers are connected to each other by a fluid-conducting channel. An overflow valve is arranged in the channel and allows a preferred flow from the first displacement chamber to the second displacement chamber, wherein an additional return valve is arranged either in a transition region between an inlet and the first displacement chamber or in a transition region between the second displacement chamber and an outlet, an armature of the magnet drive being firmly connected to the piston.
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