| 摘要 |
<p>This pump has two end chambers (2, 3) in which respective pistons (4, 5) are housed which pump the salt water towards a reverse osmosis membrane (7), and a central chamber (8) in which a slide part is housed that can be actuated by the shifting of the pistons (4 and 5), carrying out the actuation of a directional valve (9). This pump causes the alternate reversal of the outside pressure inlet towards the frontal areas of the end chambers (2, 3) and the reversal of the pressure inlet of the water repelled by the membrane towards the latter areas of said chambers (2, 3). <IMAGE></p> |
