| 摘要 |
<p>A positive displacement pump (10) having a magnetic drive, characterised in that the pump (10) comprises a pump housing (12) defining a cavity (14) therein through which a fluid may be pumped or metered, at least one vane (50, 52) being located in the cavity (14), the pump housing (12) having provided at each opposed end thereof a gear housing (16), the gear housing (16) having located therein at least one guide member (38, 44), wherein there are provided a complementary number of guide members (38, 44) and vanes (50, 52) forming pairs thereof, these pairs having provided therein magnetic coupling means such that movement of a guide member (38, 44) induces movement in a complementary vane (50, 52).</p> |
