Patent ID: 7303674
Filing Date: 2007-12-04
Classification: B01D,C02F,Y02A

Abstract:
1. A device for generating hydraulic pressure without an external energy input, comprising: (a) a housing assembly having a FO end and a hydraulic pressure output end, a sealable osmotic agent access port communicating with the FO end of the housing assembly, a hydraulic fluid inlet port and a hydraulic fluid pressure outlet port; (b) a forward osmosis assembly having a spiral wound configuration contained within the housing assembly at the FO end, wherein the forward osmosis assembly further comprises a central hollowed unit wherein the hollow communicates with the hydraulic fluid water inlet port; and (c) a piston or baffle assembly located between the forward osmosis assembly and the hydraulic fluid outlet port within the housing assembly and movable between the FO end and the hydraulic fluid outlet port of the housing assembly.