|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||417/318 ; 417/393|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 12 인용 특허 : 1|
Motor-pumping method and apparatus for recovery of energy from spent brine discharged from a reverse osmosis desalination system are disclosed. Energy of spent brine discharged from the reverse osmosis system is used to pump a portion of the fresh brine input to the system. The novel apparatus includes a pair of closed cylinders having pistons reciprocable therein which are interconnected for simultaneous piston movement. First valve means movable between first and second conditions are provided for atternatively connecting a source of fresh brine to the...
In a method of delivering fresh brine to a reverse osmosis device by use of main pump means and a plurality of interconnected motor-pump means using spent brine from the reverse osmosis device as motive fluid for said motor-pump means, each motor-pump means including a closed cylinder with a reciprocably movable piston therein separating the cylinder into motor and pump chambers, each piston having opposite faces of different effective area with the larger piston face being included in the motor chamber and the smaller face in the pump chamber for pressu...