Variable displacement piezo-electric pumps

Details Variable displacement piezo-electric pumps Variable displacement piezo-electric pumps

2007-12-05

2011-11-15

Freay, Charles (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C092S049000, C092S099000

Reexamination Certificate

active

08057198

ABSTRACT:
A variable displacement piezo-electric pump which includes a pump housing having a side housing wall defining a pump chamber, an inlet line and an outlet line communicating with the pump chamber, a flexible pump diaphragm spanning the side housing wall in the pump chamber, a diaphragm-stroking mechanism such as a piezo-electric stack engaging the pump diaphragm and a diaphragm support provided between the diaphragm-stroking mechanism and the side housing wall of the pump housing.

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