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| Number | Title | Issue Date |
| 7201557 | Rotary pressure exchanger A pressure exchanger for the transfer of pressure energy from a high pressure fluid stream to a lower pressure fluid stream wherein a generally cylindrical housing contains a rotor having a plurality of channels extending axially therethrough and a pair of end cover... | 04/10/2007 |
| 6540487 | Pressure exchanger with an anti-cavitation pressure relief system in the end covers A pressure exchanger for simultaneously reducing the pressure of a high pressure liquid and pressurizing a low pressure liquid. The pressure exchanger has a housing having a body portion; with end elements at opposite ends of the body portion. A rotor is ... | 04/01/2003 |
