Coolant water pump especially for an internal combustion engine

摘要

The coolant pump (1) has a casing (2) with a bearing (3) for a pump shaft (4) which has a sealing element (8) to seal the bearing from the coolant cavity. The leakage cavity (11) in the casing for coolant leaking through the seal can be made along with the casing in a single casting process, deforming it in a transverse plane towards the pump shaft axis.