| Patents for F04D 1 - Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps (3,447) |
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| 11/16/1995 | WO1995030821A1 Fluid pump with integral filament-wound housing |
| 11/15/1995 | EP0681654A1 Sealless rotodynamic pump |
| 11/15/1995 | EP0493428B1 Pump or compressor unit |
| 11/15/1995 | CN2212673Y Centrifugal pump |
| 11/15/1995 | CN2212672Y Open-type self-sucking centrifugal pump |
| 11/15/1995 | CN1111714A Turboexpander pump unit |
| 11/09/1995 | WO1995030092A1 Self-priming, multi-stage centrifugal pump |
| 11/09/1995 | DE4415157A1 Selbstansaugende mehrstufige Kreiselpumpe Self-priming multistage centrifugal pump |
| 10/25/1995 | CN1110764A Multi-stage pump axial force balance device |
| 10/18/1995 | CN2210269Y Radial-flow pump for spray jet |
| 10/10/1995 | US5456577 Centrifugal pump with resiliently biasing diffuser |
| 10/04/1995 | CN2209225Y Centrifugal pressurizing water injection pump |
| 10/04/1995 | CN2209224Y Synchronous double vane pump |
| 09/20/1995 | EP0672223A1 Impelling apparatus |
| 09/13/1995 | CN2207461Y Multi-stage centrifugal pump |
| 09/06/1995 | CN2206845Y Single-grade single-suction cantilever centifugal oil pump |
| 08/30/1995 | EP0669466A1 Turboexpander pump unit |
| 08/30/1995 | CN2206363Y Bidirectional impeller oil pump |
| 08/29/1995 | US5445494 Multi-stage centrifugal pump with canned magnetic bearing |
| 08/28/1995 | EP0681654A4 Sealless rotodynamic pump. |
| 08/23/1995 | CN1107208A Cylinder case vortex pump |
| 08/16/1995 | EP0667456A1 Centrifugal pump |
| 08/16/1995 | CN2205459Y Self suction centrifugal oil pump for oil tank automobile |
| 08/02/1995 | EP0471089B1 Device for generating fluid flow and method of manufacture thereof |
| 07/26/1995 | EP0664398A1 Centrifugal pump with backflow prevention valve |
| 07/12/1995 | EP0662196A1 Sectional-casing-design rotary pump. |
| 07/05/1995 | CN1104725A Centrifugal pump with differential turbine |
| 06/27/1995 | US5427501 Fuel pump impeller with pump down extension |
| 06/20/1995 | US5425618 Multistage pump provided with modular internal components made of wearproof materials |
| 06/07/1995 | CN1103465A High-efficiency reverse supercharging pump |
| 05/31/1995 | EP0490908B1 Sheet metal pump casing |
| 05/30/1995 | US5420215 Process for producing vinyl chloride-based polymer |
| 05/24/1995 | CN2198420Y Double casing centrifugal pump |
| 05/23/1995 | US5417544 For undersea use |
| 05/23/1995 | CA1335628C Heat pumps |
| 05/18/1995 | WO1995013477A1 Multistage centrifugal pump with canned magnetic bearing |
| 05/18/1995 | CA2174662A1 Multistage centrifugal pump with canned magnetic bearing |
| 05/16/1995 | US5415524 Fluid propulsion device |
| 05/09/1995 | US5413315 Injection equipment |
| 05/09/1995 | CA2074453C Bearing arrangement for centrifugal pump |
| 04/26/1995 | CN2195635Y Safety energy-saving single-stage double-suction centrifugal water pump |
| 04/26/1995 | CN2195634Y Multi-stage-multi-outlet centrifugal pump |
| 04/26/1995 | CN2195633Y Domestic water pump for heating system |
| 04/19/1995 | EP0648934A1 Full-circumferential flow pump |
| 04/19/1995 | CN2194989Y 80 AY 100X2 model double-stage single-suction cantilever centrifugal oil pump |
| 04/18/1995 | US5407323 Fluid pump with integral filament-wound housing |
| 04/13/1995 | WO1995009983A1 Pump with a number of distinct pumping stages for pumping several liquids |
| 03/29/1995 | CN2193447Y Admitting-closed impeller plastic centrifugal pump |
| 03/22/1995 | EP0644472A2 Method for prediction of performance of a centrifugal pump with a thrust balance mechanism |
| 03/22/1995 | CN2192748Y Underoil pump for transformer |
| 03/01/1995 | CN2190708Y Multi-stage self suction centrifugal oil pump carried on vehicle |
| 02/22/1995 | CN1099104A Three-baffle slide bearing centrifugal pump |
| 02/09/1995 | WO1995004226A1 Vertical pump and method for accessing same |
| 02/08/1995 | CN2189219Y Automobile cooling water pump |
| 02/01/1995 | CN2188665Y Two-stage single-suction cantilever centrifugal pump |
| 01/31/1995 | US5385447 Axial flow pump for debris-laden oil |
| 01/31/1995 | US5385445 Centrifugal pump |
| 01/31/1995 | US5385444 Pump casing made of sheet metal |
| 01/18/1995 | CN2187689Y Energy-saving double-suction centrifugal circulation water pump |
| 01/11/1995 | CN2187235Y Vortex pump |
| 12/21/1994 | EP0629779A1 Structured surfaces for component parts of turbomachines |
| 12/21/1994 | CN2185816Y Non-axial force segmental type multi-stage centrifugal pump |
| 12/20/1994 | US5374160 High performance turbomolecular vacuum pumps |
| 12/06/1994 | US5370509 Sealless rotodynamic pump with fluid bearing |
| 12/06/1994 | US5369972 Interstage casing for a pump made of sheet metal and method of manufacturing the same |
| 11/30/1994 | CN2184107Y Upright multilevel pump |
| 11/23/1994 | CN2183461Y 离心泵 Centrifugal |
| 11/23/1994 | CN2183460Y Moveable centrifugal boost pump |
| 11/10/1994 | DE4315234A1 Process for producing liquid mixtures from various individual components |
| 11/01/1994 | US5360290 Underground drainage facility, vertical-shaft multi-stage adjustable vane pump, and method of running drainage pump |
| 10/26/1994 | CN1094130A Impelling apparatus |
| 10/25/1994 | US5358373 High performance turbomolecular vacuum pumps |
| 10/19/1994 | EP0620285A1 Injection equipment |
| 10/19/1994 | EP0619860A1 Multiphase fluid treatment |
| 10/19/1994 | CN2179923Y Corrosion-resistant doubl-volute cantilever fluid pump |
| 10/19/1994 | CN2179922Y External returning device for cantilever fluid pump |
| 10/13/1994 | WO1994023211A1 Sheet-metal-construction pump stage |
| 10/12/1994 | EP0619001A1 Centrifugal pump with adaptor for various valves. |
| 10/12/1994 | CN2179474Y Horizontal multi-stage pump |
| 10/05/1994 | EP0618369A1 Barrel-type pump |
| 10/05/1994 | CN2178797Y Plastic centrifugal pump with series multilevel pressure |
| 09/07/1994 | CN1091812A One-section multi-stage centrifugal booster |
| 09/06/1994 | US5344678 Shaft sleeve made of ceramics |
| 09/06/1994 | US5344285 Centrifugal pump with monolithic diffuser and return vane channel ring member |
| 08/23/1994 | US5340272 Multi-stage centrifugal pump incorporating a sealed thrust bearing |
| 08/17/1994 | EP0610572A1 Assembly for pumping washing liquid from a tank to a spray nozzle of a motorvehicle |
| 08/03/1994 | EP0608567A1 Process for producing a vinyl chloride-based polymer |
| 08/02/1994 | CA2048423C Recirculation and filtration device |
| 07/27/1994 | CN2172816Y Rotary injection pump |
| 07/26/1994 | US5332373 Vertical pump and method for accessing same |
| 07/26/1994 | US5332355 Impelling apparatus |
| 07/19/1994 | US5330318 Centrifugal pump with an improved axial diffusor |
| 07/14/1994 | DE4243143A1 Water tornado spiral for low wear drive of pumps and turbines |
| 07/13/1994 | CN1089333A Delivery lift adjustable centrifugal pump |
| 07/13/1994 | CN1025449C Turbocompressor with variable quantity mechanism |
| 06/29/1994 | EP0604390A2 Method for feeding a multiple pressure steam generator and feed pump |
| 06/28/1994 | US5324177 Sealless rotodynamic pump with radially offset rotor |
| 06/23/1994 | WO1994013957A1 Impelling apparatus |
| 06/22/1994 | EP0602576A1 Multistage pump provided with modular internal components made of wearproof materials |
| 06/13/1994 | CA2107435A1 Pump system for liquids which can be driven electrically, aeration device as well as connection flange |