Patent ID: 11933294
Assignee: IHI CORPORATION
Field: Engines, pumps, turbines (Mechanical engineering)
Classification: CPC F | IPC F

Claim 0:
1. A pump system comprising:
a triple-gear pump which pressurizes a fluid using three gears;
an outlet flow path which guides the fluid from a first pressure-increasing portion to an outlet;
a first flow path which guides the fluid from the first pressure-increasing portion to a second pressure-increasing portion;
a second flow path which guides the fluid from the second pressure-increasing portion to the outlet flow path;
a third flow path connected to the first flow path and the second flow path;
a first valve device provided in the first flow path;
a second valve device provided in the second flow path; and
a control device which controls the first valve device,
wherein the control device is configured to cause the first valve device to open after the second valve device is closed when the first pressure-increasing portion and the second pressure-increasing portion are switched from a parallel state to a series state.