Conveying device e.g. submersible motor-driven pump for promoting medium e.g. fluid, has gap that is formed between running wheel and intake component and is set with gap width varied by movement of housing portion and intake component

摘要

The device (1) has pumping and spiral housing and a running wheel (2) arranged in the pumping and spiral housing. The pumping and spiral housing comprises a housing portion (3) and an intake component (4). The housing portion and intake component are moveably arranged together by a connection unit. A gap (14) is formed between the running wheel and intake component and is set with a gap width that is varied by the movement of the housing portion and intake component.