Pump e.g. coolant pump, has axial bearing and/or radial bearing that is arranged to support the pump wheel relative to the housing such that axial gap and/or radial gap is reduced

摘要

The pump (1) has a pump wheel (2) which is rotatably mounted in housing (5). An axial gap (8) and/or a radial gap (9) is formed between the pump wheel and housing. An axial bearing (10) and/or a radial bearing (11) provided with sealing function is arranged to support the pump wheel relative to the housing such that axial gap and/or radial gap is reduced. The pump wheel is made of plastic.