| 摘要 |
<p>A pump apparatus comprising an enclosure (70) for holding a volume of fluid; an intake one-way valve (46,58) for enabling intake of fluid into the enclosure; a discharge one-way valve (48,64) for enabling discharge of fluid from the enclosure; a diaphragm (28) for cyclically deflectably increasing and decreasing the volume of the enclosure whereby fluid is oscillatingly drawn into the enclosure and discharged therefrom; a heating assembly (30) for selectively oscillatingly applying heat to the diaphragm and terminating application of heat thereto for selectively oscillatingly deflecting the diaphragm. <IMAGE></p> |
