| 摘要 |
The invention relates to a liquid pump comprising a hollow body with an inlet and an outlet valve. The pump effect is produced by varying the volume of the hollow body. In order to create a pump, which is of simple construction and functions reliably even at high frequencies, it is proposed according to the invention that the hollow body (10) have at least one converter (3, 21, 22), mechanically prestressed in a saucer shape and fitted with contacts in such a way that, in the event of voltage changes on the contacts, its surface contracts. This reduces the enclosed volume. With two converters (21, 22) the pump output can be simply controlled by out-of-phase triggering. <IMAGE>
|
