Pressure and flow rate control apparatus and plant system using the same
US6457313B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2001 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Dec 10, 2021 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01K7/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A pressure and flow control apparatus includes first to third pipes, fluid being supplied to the first pipe and outputted from the third pipe, a pressure control valve, a control valve, and a control unit. The pressure control valve is provided between the first and second pipes and opened or closed based on a first opening degree to control flow of the fluid from the second pipe to the third pipe. The control valve is provided between the second and third pipes and opened or closed based on a second opening degree to control flow of the fluid from the first pipe to the second pipe. The control unit determines the first opening degree, and determines the second opening degree based on the first opening degree and a pressure in the second pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.