| Patents for F04D 9 - Priming; Preventing vapour lock (1,858) |
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| 12/27/1994 | US5375970 Circumferential flow type liquid pump |
| 11/22/1994 | US5366347 Suspension pump with built-in variably eccentric liquid ring pump |
| 10/19/1994 | EP0619860A1 Multiphase fluid treatment |
| 10/18/1994 | US5356274 Supplying self-suction unit |
| 10/12/1994 | EP0619070A2 External filtration device particularly for aquariums and ornamental water tanks |
| 10/12/1994 | EP0619001A1 Centrifugal pump with adaptor for various valves. |
| 10/08/1994 | CA2120632A1 External filtration device particularly for aquariums and ornamental water tanks |
| 09/20/1994 | US5348442 Turbine pump |
| 09/08/1994 | DE4304149C1 Self-priming motor pump unit |
| 08/31/1994 | EP0536159B1 Assembly for feeding fuel from the fuel tank of a motor vehicle to its internal combustion engine |
| 08/18/1994 | DE4304334A1 Unit for delivering fuel from a storage tank to the internal combustion engine of a motor vehicle |
| 08/16/1994 | US5338151 Unit for delivering fuel from the fuel tank to the internal combustion engine of a motor vehicle |
| 08/04/1994 | DE4302497A1 Flow pump for dishwashers etc. |
| 07/19/1994 | US5330319 Automotive fuel pump vapor orifice and channel |
| 06/29/1994 | CN2170394Y Non-return valve arranged at top of centrifugal pump intake |
| 06/28/1994 | US5324166 Apparatus and method for pumping a liquid |
| 06/15/1994 | EP0601220A1 Hydraulic pump system, in particular liquid drain pump |
| 05/25/1994 | CN2166263Y Self-suction centrifugal pump |
| 05/24/1994 | US5314302 Centrifugal pump for supplying hot liquid from a container |
| 05/11/1994 | DE4304150C1 Supply unit for water - comprises self-aspirating motor pump unit to which is connected hydraulic accumulator with inner membrane and control for complete unit |
| 04/14/1994 | WO1994008176A1 Lubrication system |
| 04/13/1994 | CN2161755Y Automatic water pump |
| 03/31/1994 | WO1994007031A1 Sectional-casing-design rotary pump |
| 03/31/1994 | DE4232020A1 Kreiselmaschine, insbesondere Kreiselpumpe, in Gliedergehäusebauart Centrifugal machine, in particular centrifugal pump, segmental type construction |
| 03/23/1994 | CN2159464Y Miniature electric water pump |
| 03/17/1994 | DE4230306A1 Immersion pump powered by electric drive motor - with non-return valve cooperating with base suction opening to maintain required liquid level within pump |
| 03/15/1994 | US5295171 Combined jet pump and internal pump rercirculation system |
| 03/01/1994 | US5289611 Extractor with manual priming pump |
| 02/23/1994 | CN2157338Y Self-priming changing-over switch for sprinkler |
| 02/08/1994 | US5284417 Automotive fuel pump with regenerative turbine and long curved vapor channel |
| 01/26/1994 | CN2154365Y Pump catchment room |
| 01/13/1994 | DE4322370A1 Engine fuel pump with plate pump wheel - has degassing channel over lamellar pump channels connected via smaller radial opening |
| 01/05/1994 | DE4221184A1 Fuel delivery pump for vehicle IC engine - uses space between impeller and delivery channel to control direction of flow |
| 12/29/1993 | CN2151280Y Miniature water pump without bottom valve |
| 12/28/1993 | CA1325552C Self-priming centrifugal pump for dangerous, particularly radio-active liquids |
| 12/21/1993 | US5271725 System for pumping fluids from horizontal wells |
| 11/24/1993 | CN2147376Y Air leading type upper discharging centrifugal pump |
| 11/23/1993 | US5263818 Pump for pumping fluid without vacuum boiling |
| 11/23/1993 | US5263459 Fuel delivery with self-priming fuel pump |
| 11/15/1993 | CA2096107A1 Centrifugal suction pump |
| 11/03/1993 | CN1078023A Double suction, single-stage and self-priming centrifugal pump |
| 10/12/1993 | CA2013132C Pump for and method of separating gas from a fluid to be pumped |
| 10/06/1993 | CN2143265Y Water pump connector |
| 09/22/1993 | EP0561689A1 Centrifugal pumps |
| 08/18/1993 | CN1075353A Small caliber high delivery lifting device for liquid |
| 08/11/1993 | EP0554706A1 Method and device for feeding a fluid |
| 08/10/1993 | US5234320 Centrifugal suction pump |
| 08/03/1993 | US5232333 Single flow turbopump with integrated boosting |
| 07/28/1993 | EP0552661A1 Self priming centrifugal pump |
| 07/22/1993 | WO1993014336A1 Valve, in particular for a pump priming circuit |
| 07/13/1993 | US5226790 Peripheral-longitudinal diffusser for a single-impeller centrifugal pump |
| 07/08/1993 | WO1993013318A1 Multiphase fluid treatment |
| 07/07/1993 | CN2137731Y Self-suction centrifugal pump |
| 07/06/1993 | US5224817 Shunt flow turbopump with integrated boosting |
| 06/22/1993 | US5221178 Circumferential flow type liquid pump |
| 06/10/1993 | WO1993011360A1 Centrifugal pump with adaptor for various valves |
| 06/02/1993 | EP0543853A1 A system for simultaneously degassing and pumping a liquid |
| 05/12/1993 | CN2132850Y Self-suckting unit of normal centrifugal pump |
| 05/04/1993 | US5207810 Submersible well pump gas separator |
| 04/20/1993 | US5203682 Inclined pressure boost pump |
| 03/30/1993 | US5197851 Axial flow turbopump with integrated boosting |
| 03/05/1993 | CA2077520A1 Inclined pressure boost pump |
| 02/25/1993 | DE4128032A1 Rotary pump for handling boiling cryogenic liquids - has inducer drive mounted on hollow shaft of pump and uses inducer running at different speed from pump |
| 02/25/1993 | DE4127768A1 Feeder from fuel tank to vehicular IC engine - improves continuity of supply by collection of cavitation bubbles using perforated rotor in enclosed pumping unit |
| 01/27/1993 | CN1068399A Resilience pump body water-drawer |
| 12/23/1992 | CN2125739U Self-suction device with compensation |
| 12/23/1992 | CN2125738U Strong sewage self-suction device |
| 12/16/1992 | CN1067098A Efficient self-priming pump controlled by gas-liquid separation chamber |
| 12/01/1992 | US5167678 Apparatus for separating gas with a pump from a medium being pumped |
| 11/19/1992 | DE4209126A1 Side channel liq. fuel pump - has gas escape vents along flow route |
| 11/11/1992 | CN2121555U 橡胶球阀水泵 Rubber Ball Pump |
| 11/04/1992 | CN2120902U Vertical self-drawing water pump |
| 11/03/1992 | US5160249 Circumferential flow type fuel pump |
| 10/29/1992 | WO1992018775A1 Self-priming rotary pump |
| 10/22/1992 | DE4113029A1 Selbstansaugende kreiselpumpe zur foerderung von fluessigkeiten in der naehe ihres siedepunktes Self-priming centrifugal pump for pumping liquids near the city its boiling point |
| 10/14/1992 | CN2118843U Air exhausting device of centrifugal pump |
| 10/13/1992 | US5154821 Pool pump primer |
| 10/13/1992 | US5154588 System for pumping fluids from horizontal wells |
| 09/23/1992 | CN1018375B Self-suspension leakage-proof centrifugal pump without having bottom valve |
| 09/22/1992 | US5149252 Two-stage pump for handling hot fuel |
| 09/10/1992 | DE4206907A1 Air removal valve for centrifugal pump - has hollow pump chamber in pump body wall,and flexible membrane |
| 08/12/1992 | CN2112707U Pump water draining device with bottom valve |
| 08/05/1992 | CN1063341A Self-sucking impurity pump |
| 07/22/1992 | EP0495306A2 Pump priming apparatus |
| 07/16/1992 | DE4100973C1 Fuel pump for IC engine - has electromotor driving two units, first delivering greater vol. and formed as side channel pump |
| 07/15/1992 | CN2110105U Self-absorption centrifugal pump |
| 07/14/1992 | US5129796 Automotive fuel pump |
| 07/09/1992 | WO1992011458A1 A suspension pump with built-in vacuum pump |
| 07/08/1992 | EP0494008A1 Turbopump with axial throughflow booster |
| 07/08/1992 | EP0494007A1 Single throughflow turbopump with booster |
| 07/08/1992 | EP0494006A1 Turbopump with bleed flow booster pump |
| 06/23/1992 | US5124115 Bwr series pump recirculation system |
| 06/23/1992 | US5123810 Power transmission |
| 06/17/1992 | CN2107550U Water storage tank type self-suction pump |
| 05/20/1992 | CN2104959U Protector for start and operation of submersible electric pump |
| 05/19/1992 | US5114312 Slurry pump apparatus including fluid housing |
| 05/06/1992 | EP0483298A1 Self-priming pumping method and device |
| 04/19/1992 | CA2053606A1 System for pumping fluids from horizontal wells |
| 04/07/1992 | US5102297 Centrifugal pump with cavitation reducing propeller |
| 03/31/1992 | US5100289 Self-priming centrifugal pump |