Work vehicle with unit for aspirating and moving slurry - incorporates pair of analogue tanks each connected via cut-off valves to suction conduit connected to vacuum pump

摘要

A pair of analogue tank (7,8) are each connected via cut-off valves to a suction conduit (14',14") connected to a vacuum pump (13) via which vacuum pressure can be created in the tanks. A pressure conduit (16',16") connected to a compressor (15) creates excess pressure in the tanks, and a feed-in conduit (17) working with suction effect and common to both tanks sucks fluid into the tanks. A feed-out conduit (18',18") working with pressure effect presses out fluid from the tanks. The tanks are arranged to work alternately so that the one tank, at least periodically during a work operation, is emptied at the same time as the other is filled with fluid.