Piezo-electric compressor with displacement amplifier

摘要

A compressor ( 300 ) for successive suction and discharge of a compressible fluid, thereby increasing fluid pressure of the compressible fluid in a substantially closed chamber, the compressor ( 300 ) comprising: at least one piezoelectric element ( 22 ); a primary displacement member ( 46 ) coupled to the at least one piezoelectric element ( 22 ); a secondary displacement member ( 44 ) coupled to the piston ( 16 ); and a non-compressible fluid ( 45 ) disposed to fill a fixed predetermined volume between the primary displacement member ( 46 ) and the secondary displacement member ( 44 ); wherein electrical actuation of the piezoelectric element ( 22 ) is controllable to displace the primary displacement member ( 46 ) by a predetermined distance, being coupled via the noncompressible fluid ( 45 ) to displace the secondary displacement member ( 44 ) by an amplified distance based upon the fixed predetermined volume.