| 摘要 |
<p>A parallel liquid chromatographic pump is provided. The pump includes a cam (61) with camshaft (60), pump head (65), at least two sets of reciprocating liquid conveying mechanism and cam driven mechanism. The cam (61) is an end cam with cam curves on one end face and the camshaft (60) on the other end face of the cam (61). The cam curves include 1-5 curve units, each of which has rise curve and decline curve. The invention has the advantage of simple structure and stable output liquid pressure.</p> |
