Combined pump

Abstract

Abstract PURPOSE: To increase the pressure supply amount without increasing the amount of circulating liquid even when the jet pump reached to the limit of flow, by providing a bypass for conducting the flow-in path to the circulation path between the suction port of motor pump and jet pump. CONSTITUTION: Electric signals from pressure detector 19 and temperature detector 20 are processed in the controller 16, to calculate the difference between real pressure at the suction side 3 of motor pump 1 and the saturated pressure corresponding with real temperature thus to regulate the opening of flow regulating valve 18 and to increase/decrease the boosting function due to jet pump 5 at the suction 3 of motor pump 1. When the pressure in the circulation path 4 at the suction port 3 of motor pump 1 is decreased by the pressure in the flow-in path 10, recovered water at the flow-in path 10 is supplied through bypass 21 to the suction side 3 of motor pump 1. COPYRIGHT: (C)1980,JPO&Japio

Inventors

• 👤 Masakatsu Okamoto

Bibliographic Details