07207781 is referenced by 7 patents and cites 6 patents.

A pressure exchange device is provided that utilizes a rotor assembly inside a housing to transfer the pressure of a fluid from one high pressure fluid to another low pressure fluid. The housing may comprise a pressurized fluid contained therein to provide a sealing force to reduce fluid leakage between the spinning rotors and the housing. The sealing force and wear characteristics may be controlled to reduce leakage and wear of the pressure exchange device. The rotor assembly may be driven in either direction and the high pressure ports may be switched with the low pressure ports if desired.

Pressure exchange apparatus with dynamic sealing mechanism
Application Number
Publication Number
7207781 (B2)
Application Date
August 20, 2004
Publication Date
April 24, 2007
Scott Shumway
Hinesburg, 05461
Eric C Spencer
B01D 61/00
F04B 17/00
F01B 23/08
F04F 11/00
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