| 摘要 |
A reciprocating pump (1) comprises a plurality of reciprocating pistons (2a, 2b, 2c) extending along respective longitudinal axes (X-X) parallel to each other and lying in a plane (Phi), a plurality of pumping work chambers (5a, 5b, 5c), and a plurality of diaphragms (7a, 7b, 7c), each arranged in a respective pumping work chamber (5a, 5b, 5c). In particular, the diaphragms (7a, 7b, 7c) are arranged coplanar in a plane (Delta) perpendicular to the axes (X-X) of the reciprocating pistons (2a, 2b, 2c), and the diaphragm of at least one reciprocating piston is offset with respect to the diaphragm of the adjacent reciprocating piston, in the direction (Y-Y) perpendicular to the plane (Phi) defined by the axes (X-X) of the reciprocating pistons (2a, 2b, 2c).
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