Submersible electric pump, has pumping chamber equipped with cooling chamber through filling hole, discharge port attached with mouth of filling hole, and impeller connected with axis of anvil part

摘要

The pump (1) has a sealed envelope (3) provided with electric connection units (5, 6). A suction drive pump (2) is coupled with a lower end of an electric motor. A tubular outer body (14) is attached with a cooling chamber (18) that is arranged between the sealed envelope and the tubular body. A pumping chamber (12) is equipped with the cooling chamber through a filling hole (19). A discharge port (21) is attached with a mouth (20) of filling hole. An impeller (10) is connected with an axis of an anvil part (22).