Power generator and turbine unit

摘要

The present invention provides a power generator (8) comprising: at least one underwater turbine unit (10) including a housing (12) having a liquid flow channel (14) and at least one turbine means (16) mounted in the flow channel (14) for rotation in response to the liquid flow through the flow channel (14). The turbine means (16) drives a pump means (18) that pumps fluid to the generator assembly (20). The power generator (8) generates electrical power. Channel (14) comprises a venturi comprising a symmetrical divergent-convergent-divergent venturi.