Pump device, cooling unit, and cooling system
AssigneeNidec Corporation
InventorsYoshihisa KITAMURA, Toshihiko TOKESHI, Takehito TAMAOKA
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Abstract
A pump device includes a flow path through which liquid flows, a first pump in the flow path, a second pump in the flow path, a first pump downstream flow path located downstream of the first pump in the flow path, a second pump downstream flow path located downstream of the second pump in the flow path, a connection flow path connected to the first pump downstream flow path and the second pump downstream flow path in the flow path, a first check valve provided in the first pump downstream flow path, and a second check valve provided in the second pump downstream flow path or the connection flow path.
Claims17
A pump device, comprising:
- a flow path through which liquid flows;
- a first pump in the flow path;
- a second pump in the flow path;
- a first pump downstream flow path located downstream of the first pump in the flow path;
- a second pump downstream flow path located downstream of the second pump in the flow path;
- a connection flow path connected to the first pump downstream flow path and the second pump downstream flow path in the flow path;
- a first check valve provided in the first pump downstream flow path;
- and
- a second check valve provided in the second pump downstream flow path or the connection flow path.
Dependencies are inferred from the claim text.