A PUMP, A WASTE DISPOSAL TRUCK AND A METHOD FOR PUMPING A PUMPABLE MATERIAL

摘要

A waste disposal truck comprising a solid matter storage chamber (6) and a compactor (7) for compacting solid matter being delivered to the solid matter storage chamber (6). A pumpable material storage chamber (9) is located on top of the solid matter storage chamber (6), and a pump (10) is mounted on the compactor (7) to the rear and to one side thereof for receiving and pumping pumpable material into the pumpable material storage chamber (9). The pump (10) comprises a pump housing (15) defining a pump chamber (16). An inlet port (24) is provided to the pump chamber (16). A sub-housing (25) extending upwardly from the pump housing (15) defines an inlet opening (45) to the inlet port (24). A piston (35) is carried on an hydraulic ram (33) which is pivotally coupled to an anchorage (31) in the sub- housing (25). The piston (35) is urged by the hydraulic ram (33) from a first state spaced apart above the inlet opening (45) through the inlet port (24) for discharging pumpable material in the pump chamber (16) through an outlet port (21), and in turn through a conduit (12) to the pumpable material storage chamber (9). A chute (47) directs pumpable material through the inlet opening (45) and the inlet port (24) to the pump chamber (16).