| 摘要 |
A pumping unit, consisting of two side-by-side identical pumps (1) linked together, each comprising a star arrangement of pistons (9) which at one end are linked to a shaft (7) with a crank (77), and at the other end comprise respective pumping diaphragms (11) housed in corresponding operating chambers (13), each chamber (13) being provided with an intake valve (130) and a delivery valve (131), comprises a common intake or delivery manifold (3) located between the facing sides of said two pumps, and having a single branch for connection to the supply of fluid to be pumped, or to the device using the pumped fluid, and respective branches for connection to said operating chambers for said diaphragms. <IMAGE> |
