公开(公告)号：US11199122B2

公开(公告)日：2021-12-14

申请号：US16971334

申请日：2019-04-02

申请人： NIDEC GPM GmbH

发明人： Steffen Kellner ,  Sandro Schunk

IPC分类号： F01P5/10 ,  F04D15/00 ,  F04D13/14 ,  F01P7/16 ,  F04D1/00 ,  F01P5/12 ,  F01P7/14

摘要： A hybrid-driven dual pump for conveying a coolant for a combustion engine, is proposed. The dual pump comprises: a first pump assembly with a first pump impeller, a first spiral housing and a first pump shaft driven via a mechanical drive connection by a combustion engine; a second pump assembly with a second pump impeller, a second spiral housing, a second pump shaft and an electric drive; a joint pump housing enclosing the first pump assembly and the second pump assembly with a joint pump inlet and a joint pump outlet; and a flap arranged freely pivotably between an outlet of the first spiral housing and an outlet of the second spiral housing such that a direct flow connection between the first spiral housing and the second spiral housing is blocked.