| Patents for F04D 9 - Priming; Preventing vapour lock (1,858) |
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| 01/08/2003 | CN2530072Y 离心泵 Centrifugal |
| 01/03/2003 | WO2003001065A1 Self priming centrifugal pump |
| 12/18/2002 | CN2526549Y Agricutural water pump set |
| 12/18/2002 | CN2526547Y Vertical leakless self-priming pump |
| 11/14/2002 | WO2002057635A3 Centrifugal pump with facilitated self-priming |
| 11/14/2002 | US20020168270 Vacuum-assisted pump |
| 10/29/2002 | US6471476 Centrifugal trash pump |
| 10/16/2002 | CN2516733Y Combined high lift water pump |
| 10/02/2002 | EP0889989B1 Method and device at the pumping of a medium |
| 10/02/2002 | CN1372619A 泵装置 Pump device |
| 09/26/2002 | WO2002075047A1 Pumping device |
| 09/17/2002 | US6450764 Pulp pump |
| 09/12/2002 | US20020125680 Trailer and fuel tank assembly |
| 09/12/2002 | US20020125335 Tapered air purging circulator |
| 09/12/2002 | DE19709598C2 Flüssigkeitsförderanlage Liquid handling system |
| 08/22/2002 | US20020114707 Vacuum-assisted pump |
| 08/13/2002 | US6431461 Tapered air purging circulator |
| 07/31/2002 | CN1361360A Miniature self-priming pump capable of stopping suction |
| 07/25/2002 | WO2002057635A2 Centrifugal pump with facilitated self-priming |
| 07/25/2002 | US20020098090 Pump system with vacuum source |
| 07/04/2002 | WO2001090581A3 Liquid manure pump aggregate |
| 06/25/2002 | US6409478 Vacuum-assisted pump |
| 06/19/2002 | CN2495832Y Self-sucking type centrifugical pump |
| 06/18/2002 | US6405748 Trailer and fuel tank assembly |
| 05/23/2002 | DE10155547A1 Centrifugal pump has housing in which pump chamber is formed, chamber containing vane wheel and spiral |
| 05/21/2002 | US6390768 Pump impeller and related components |
| 05/15/2002 | CN2491630Y Once water conducting sprinkling irrigation pump |
| 04/10/2002 | CN2485453Y Pump with long shaft for pumping from deep well |
| 04/10/2002 | CN1082630C Diffuser and conveyer device for single-impeller centrifugal self-priming pump |
| 04/10/2002 | CN1082628C Self-priming type centrigual pump |
| 03/27/2002 | EP1191228A2 Self priming centrifugal pump |
| 03/27/2002 | EP1021655B1 Delivery pump |
| 03/27/2002 | CN2483533Y Double wheel self-operating pump |
| 03/26/2002 | US6361272 Centrifugal submersible pump |
| 03/21/2002 | US20020034446 Hygienic self-priming centrifugal pump |
| 03/06/2002 | CN1080392C Method for controlling function of centrifugal pump and vacuum pump combination, and gas separating centrifugal pump |
| 02/26/2002 | US6350101 Barrel pump |
| 02/20/2002 | CN2477868Y Self-sucking water pump |
| 02/06/2002 | CN2475852Y Water pump for diesel engine |
| 01/30/2002 | CN1078681C 自动泵 Automatic pump |
| 01/23/2002 | CN2473362Y Strong self suction middle open centrafugal clean water pump |
| 01/17/2002 | WO2002004815A1 Self-priming pump |
| 01/16/2002 | CN2471976Y Multifunctional self sucking centrifugal pump with casing integrated with body |
| 01/09/2002 | EP1169550A2 Pump assembly and related components |
| 01/09/2002 | EP0961852B1 Pump for fibrous pulp suspension with means for separating gas from the suspension |
| 12/26/2001 | CN1328216A Non-vacuumizing start of large centrifugal water pump |
| 12/12/2001 | EP0732504B1 Self-sucking centrifugal pump |
| 12/05/2001 | CN2463568Y Strong self-priming multi-stage centrifugal pump |
| 11/29/2001 | WO2001090581A2 Liquid manure pump aggregate |
| 11/28/2001 | EP1157601A1 Pump unit |
| 11/28/2001 | EP0830511B1 Method of controlling the function of a centrifugal pump and vacuum pump combination, and a gas-separating centrifugal pump |
| 11/21/2001 | CN1322903A Miniature resistance bottom valve |
| 11/15/2001 | WO2001086831A1 Method for multi-phase data communications and control over an esp power cable |
| 11/15/2001 | US20010041140 Pump system with vacuum source |
| 11/15/2001 | CA2408593A1 Method for multi-phase data communications and control over an esp power cable |
| 11/13/2001 | US6315524 Pump system with vacuum source |
| 10/31/2001 | CN1319725A Float self-suction pump |
| 10/30/2001 | US6309173 Delivery pump |
| 10/25/2001 | WO2000057056A9 Pump assembly and related components |
| 10/25/2001 | US20010032721 Method for boosting the output voltage of a variable frequency drive |
| 10/17/2001 | CN1073173C Pump device for washing machine |
| 09/19/2001 | CN1071422C Submerged pump |
| 09/04/2001 | US6283704 Circumferential flow type liquid pump |
| 07/11/2001 | CN2438851Y Horizontal self-priming flow pump |
| 07/05/2001 | DE19962729A1 Selbstansaugendes Pumpenaggregat Self-priming pump unit |
| 06/27/2001 | EP1111244A2 Self priming pump |
| 06/27/2001 | CN1067747C Self-sucking centrifugal pump |
| 06/26/2001 | US6250889 Pump with improved priming |
| 06/20/2001 | EP0879360B1 Diffuser and conveyor device for a single-impeller centrigugal self-priming pump |
| 06/13/2001 | CN2434452Y Vertical strong self-sucking pump |
| 06/06/2001 | CN2433430Y Centrifugal water pump self-priming apparatus |
| 05/29/2001 | US6238191 Apparatus for supplying a fuel by means of a fuel supply unit arranged in a housing |
| 05/23/2001 | CN2431421Y Single case double vane self-pressing water diversion centrifugal pump |
| 05/16/2001 | CN2430560Y Agriculture air suction type water pump |
| 04/04/2001 | EP1088170A1 Pulp pump |
| 03/28/2001 | CN2425217Y Diversion device of water pump |
| 03/28/2001 | CN1063729C Liquid pump with degasser and interated vapor recovery function |
| 03/21/2001 | CN1063529C Centrifugal pump |
| 02/14/2001 | CN2419394Y Self sucking pump |
| 01/24/2001 | CN2416255Y Diversion valve for pump |
| 01/18/2001 | DE19938760C1 Electrically-driven cask pump has sealing cone at end of pump rotor shaft for closing annular entry opening at bottom end of tubular pump housing upon axial movement of rotor shaft |
| 01/17/2001 | CN2415179Y Self-priming pump |
| 01/11/2001 | WO2001002732A1 Pump device |
| 01/11/2001 | WO2000057056A3 Pump assembly and related components |
| 01/04/2001 | WO2001000994A1 Pumping device for several fuels |
| 01/03/2001 | EP1065384A1 Pumping device for several fuels |
| 01/03/2001 | CN2413063Y Vertical self-priming discharge pump |
| 01/02/2001 | US6168376 Rotary pump with ventilated chamber |
| 01/02/2001 | US6167965 Electrical submersible pump and methods for enhanced utilization of electrical submersible pumps in the completion and production of wellbores |
| 12/27/2000 | CN2412112Y Guide sucking device for water pump |
| 11/29/2000 | CN2408277Y Automatic water changing self suction centrifugal pump |
| 11/28/2000 | US6152689 Self-priming type cetrifugal pump |
| 11/21/2000 | US6149407 Gas-venting domestic hot water circulation pump |
| 11/08/2000 | CN2405044Y Centrifugal type pump |
| 11/08/2000 | CN2405043Y Self-sucking type centrifugal pump |
| 11/07/2000 | US6142748 Degas piping for pumps |
| 10/31/2000 | US6139606 For degassing gas-containing fluid media in a container with the apparatus including a centrifugal pump for pumping the gas-containing fluid medium from the container, an ejector including a suction side, an ejector inlet for a drive fluid |
| 10/25/2000 | CN2402844Y Double self-priming vertical sewage pump |
| 10/18/2000 | EP1045148A2 Automotive fuel pump with a high efficiency vapor venting system |
| 10/12/2000 | DE19942701C1 Barrel pump has a footplate with openings at the entry zone facing the openings in the bottom plate of a rotating sleeve to open and close them and bring the rotor close to the barrel bottom |