Double selectable delivery pump.

摘要

The double delivery pump comprises an impeller (6) with double direction of rotation contained in a body (5) connected to an axial intake conduit (9) and defining a cylindrical seat (8) connected to two tangential rectilinear ducts (12,13) leading into a distribution seat (17) containing a distribution element (16). The distribution element can slide in the distribution seat and defines shutters (23,24) which can cutoff one or the other of two delivery conduits (20,21) connected to the opposite ends of the distribution seat.