| Patents for F04F 5 - Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow (4,425) |
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| 03/06/2003 | US20030044287 Vacuum producing device |
| 03/05/2003 | EP1288504A1 Vacuum generating device |
| 03/05/2003 | CN2538995Y Ring-type jet vacuum pump |
| 02/20/2003 | US20030034078 Back flow preventing eductor |
| 02/13/2003 | WO2003012300A1 Method for operating a well jet device during repair and insulating operations and device for carrying out said method |
| 02/13/2003 | WO2003012299A1 Well jet device for well testing and development and operating method for said well jet device |
| 02/13/2003 | US20030031566 Plurality of vacuum generation units |
| 02/11/2003 | US6517320 Hose siphon |
| 02/06/2003 | WO2002086323A3 Ejector pump and a method for producing a nozzle for an ejector pump |
| 02/06/2003 | US20030026707 Hose siphon |
| 02/06/2003 | US20030024583 Mixing insert for a chemical injector |
| 02/06/2003 | US20030024485 Animal bathing system |
| 01/29/2003 | EP1278916A1 Method and device for subsea dredging |
| 01/28/2003 | US6511307 Method for producing a vacuum by a pumping-ejection system |
| 01/23/2003 | WO2003006832A1 Well jet device for well testing and developing and the operating method for said well jet device |
| 01/21/2003 | US6508386 High pressure hydraulic cleaning unit possibly with detergent ejector device |
| 01/16/2003 | WO2003004127A1 Fluid injector with vent/proportioner ports |
| 01/16/2003 | US20030012658 Thermo-kinetic compressor |
| 01/15/2003 | EP1275914A2 Cryogenic refrigeration system and method having an open-loop short-term cooling system for a superconducting field winding |
| 01/15/2003 | CN2531155Y Water circulation vacuum pump |
| 01/14/2003 | US6505644 Dual barrel jet fuel pump assembly for a fuel tank |
| 01/09/2003 | US20030007874 Ejector and negative-pressure supply apparatus using the same |
| 01/08/2003 | CN1390279A Method and device for increasing the pressure of a gas |
| 01/02/2003 | EP1269025A1 Thermo-kinetic compressor |
| 01/01/2003 | CN2529001Y Deacid jet injector |
| 01/01/2003 | CN2529000Y Dredge-nut underground double-pipe hydraulic injection pump |
| 12/27/2002 | WO2002093016A3 Hydraulic pump nozzle and method of use |
| 12/25/2002 | CN1387009A Jet-type splittable cooking fume exhauster without contact of cooking fume with fan |
| 12/25/2002 | CN1097150C Device for producing energy by means of turbo-machine |
| 12/19/2002 | WO2002100229A2 Animal bathing system |
| 12/19/2002 | WO2002084126A3 Method and apparatus for injecting a chemical into a fluid stream |
| 12/18/2002 | CN2526569Y Circulation water-saver for vacuum pump |
| 12/18/2002 | CN2526568Y Device for suction drainage of washing lotion |
| 12/18/2002 | CN1386186A Ejector pump and refrigerating machine |
| 12/18/2002 | CN1385649A Jet-flow type green monount oil fume exhauster without ail fume contact with fan |
| 12/05/2002 | US20020182084 Annular suction valve |
| 12/04/2002 | CN1383404A 燃料输送单元 Fuel delivery unit |
| 12/04/2002 | CN1095527C Device for clearing oil mist and smoke |
| 12/03/2002 | US6488476 Fuel feed unit |
| 11/28/2002 | WO2002095238A1 Method of operation of a well jet device in well testing and development and the well jet device for carrying out said method |
| 11/28/2002 | US20020176802 Comprises venturi pumps; pneumatics; for use in biochips |
| 11/21/2002 | WO2002093016A2 Hydraulic pump nozzle and method of use |
| 11/21/2002 | US20020172601 Suction jet pump and method for producing a nozzle for a suction jet pump |
| 11/20/2002 | EP1257742A1 Plurality of vacuum generation units |
| 11/14/2002 | US20020168269 Hydraulic pump nozzle and method of use |
| 11/14/2002 | US20020168268 Pneumatic microfluid driving system and method |
| 11/07/2002 | US20020162518 High pressure steam water injector comprising an axial drain |
| 11/07/2002 | DE10118885C1 Vakuumerzeuger Vacuum Generators |
| 11/06/2002 | CN1378479A 液体喷射压缩机 Liquid jet compressor |
| 10/31/2002 | WO2002086323A2 Ejector pump and a method for producing a nozzle for an ejector pump |
| 10/30/2002 | CN1093492C Apparatus for generating vacuum |
| 10/29/2002 | US6471489 Supersonic 4-way self-compensating fluid entrainment device |
| 10/24/2002 | WO2002084126A2 Method and apparatus for injecting a chemical into a fluid stream |
| 10/24/2002 | US20020155005 Vacuum generator |
| 10/17/2002 | WO2002081928A1 Well jet device |
| 10/17/2002 | US20020148510 Fuel tank |
| 10/17/2002 | DE10116700A1 Device for monitoring pressure level in pressure chambers with ejector has n-minus one OR-pressure members for n pressure chambers with two supply lines and outlet opening into shut-off member |
| 10/16/2002 | EP1248907A1 Jet pump |
| 10/15/2002 | US6464262 Mechanical interface connection for vacuum ejectors, and a modular assembly for supplying negative pressure to an industrial process by means of at least one vacuum ejector driven by compressed air |
| 10/10/2002 | US20020146324 Method for producing a vacuum by a pumping-ejection system |
| 10/10/2002 | US20020144739 Vacuum generator |
| 10/10/2002 | DE10116698A1 Regulating device for regulating pneumatically operated ejector which moves between working position and rest position through the underpressure chamber which is biased with the underpressure prevailing in the suction element |
| 10/09/2002 | CN1373314A Lubricating method and unit for pulley |
| 10/09/2002 | CN1373301A Water plunger type vacuum pump and compressor |
| 10/08/2002 | US6460784 Liquid-gas jet apparatus |
| 10/03/2002 | US20020141878 Pump assembly |
| 10/03/2002 | US20020139525 Downhole jet pump |
| 10/03/2002 | US20020139435 Attachment for a vacuum pump |
| 10/02/2002 | EP1245831A2 Pump assembly |
| 10/02/2002 | EP0889989B1 Method and device at the pumping of a medium |
| 10/02/2002 | CN1091641C Air ozone mixer and ozone fog generator |
| 09/26/2002 | WO2002075109A1 Double-cone device and pump |
| 09/26/2002 | US20020134103 Ejector and refrigerating machine |
| 09/25/2002 | EP1243748A1 Double-cone device and pump |
| 09/24/2002 | US6453935 Fluid injector with vent/proportioner ports |
| 09/24/2002 | US6453926 Method and apparatus for injecting a chemical into a fluid stream |
| 09/18/2002 | CN2511866Y Steam jetting vacuum device |
| 09/17/2002 | US6450775 Jet pumps and methods employing the same |
| 09/17/2002 | US6450774 Method and system for a jet pump slip joint ovalization |
| 09/17/2002 | US6450484 Multiple-nozzle gas-liquid ejector |
| 09/11/2002 | EP1239164A2 Vacuum control apparatus for maintaining the operating condition of a vacuum responsive device during loss and resumption of power |
| 09/11/2002 | CN1368621A Vacuum-negative pressure cooker hood sucking clean air and removing cooking fume not via blade wheel |
| 09/10/2002 | US6446683 Attachment for a vacuum pump |
| 09/03/2002 | US6443175 Vacuum pressure generator circuit with non-volitile memory function |
| 09/03/2002 | US6442949 Cryongenic cooling refrigeration system and method having open-loop short term cooling for a superconducting machine |
| 08/29/2002 | WO2002066840A1 Downhole jet unit for testing and completing wells |
| 08/29/2002 | WO2002066839A1 Downhole jet unit for testing and completing wells |
| 08/29/2002 | US20020119051 High efficiency steam ejector for desalination applications |
| 08/29/2002 | DE10027650A1 Kraftstoffördereinheit Fuel delivery |
| 08/28/2002 | EP1234982A1 Vacuum pump |
| 08/27/2002 | US6438993 Ejector cycle system |
| 08/22/2002 | US20020114705 Vacuum producing device |
| 08/20/2002 | US6438192 Jet pump slip joint seal |
| 08/20/2002 | US6435839 Jet pump sensing line clamp assembly and methods |
| 08/20/2002 | US6435483 Gas-liquid ejector |
| 08/15/2002 | US20020110459 Rotary vane pump |
| 08/14/2002 | CN1363779A Joint refrigeration type steam-jet vacuum pump |
| 08/08/2002 | US20020106547 Variable flow-rate ejector and fuel cell system having the same |
| 08/08/2002 | US20020106281 Method and system for a jet pump slip joint ovalization |
| 08/07/2002 | EP1229253A2 Method for maintaining the operating condition of a vacuum responsive device during loss and resumption of power |