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