| 摘要 |
<p>A pump is comprised of a piezo-electric vibrator (2) mounted in a casing (1). The piezo-electric vibrator (2) is coated with an elastic elastomer layer (10), and a peripheral part of the elastomer layer is secured to the casing (1) within the casing (1). Suction and discharge of fluid is performed by means of a piezo-electric vibrator vibrated by applying alternative current voltages between electrodes (3,4) of the piezo-electric vibrator (2). The vibration of the piezo-electric vibrator (2) is performed smoothly to produse and high discharge volume and discharge pressure can be produced.</p> |
