| 摘要 |
<p>Distribution inking unit for use with printing groups, and particularly rotoprint printing groups comprising a printing cylinder (2), a pan (1) containing the ink or another fluid for said printing cylinder (2), a container (8) for the working ink or other working fluid, and pump means for pumping the ink or other fluid from said container (8) to said pan (1) and vice versa, characterized by the fact that the said pumping means is a unidirectional hydraulic pump (11) and that in the circuit between the suction side and the delivery side of said pump (11) a four ways and two positions valve (10) is inserted which, in a first switching position direct the fluid from the container (8) to the pan (1) and which in a second switching position is sucking the fluid from the said pan 1, sending it to said container (8)</p> |
