| 摘要 |
A pump is provided for pumping two or more different fluids. The pump comprises a body (3) having a longitudinal bore (5) and at least first and second inlets (9, 19) selectively communicating with and providing passage to the bore (5) via non-return valves (10, 12, 20, 22). A plunger (16) is mounted for reciprocation within the bore (5) and at least one piston (14) is also mounted for reciprocation within the bore (5) so as to permit at least one type of fluid to pass into the bore (5) through one or both inlets (9, 19).
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