| 摘要 |
FIELD: pumps.SUBSTANCE: invention relates to devices for pumping fluids and can be used in industry, on transport and in everyday life in pumping liquids, other incompressible and compressible fluids, as well as in oil production from wells. Pump includes a housing, as well as arranged therein and connected in series, rear spacer piezoelectric unit, piezoelectric motion unit configured to move relative to housing in direction of change of its length, front spacer piezoelectric unit. Displacer of pumped medium is connected to front end of piezoelectric motion unit, or with a place located between front and rear ends of piezoelectric motion unit, or with rear end of piezoelectric motion unit, or with rear spacer piezoelectric unit.EFFECT: longer service life of piezoelectric pump.19 cl, 10 dwg |
