| Patents for F04D 13 - Pumping installations or systems (12,375) |
|---|
| 07/02/2003 | CN2558795Y Small circulating pump for water cooling system of fuel cell engine |
| 07/01/2003 | US6587037 Method for multi-phase data communications and control over an ESP power cable |
| 07/01/2003 | US6586900 Method for boosting the output voltage of a variable frequency drive |
| 07/01/2003 | US6585495 Reversible volume oil impeller pump with mechanical governor |
| 07/01/2003 | US6585492 Pump system with vacuum source |
| 06/26/2003 | US20030116323 System for, and a method of pumping fluids from a well |
| 06/26/2003 | DE20305562U1 Clamping connection for pump shaft cantilever-mounted on motor shaft has portion of cup-shaped pump shaft section embraced by housing bore provided with guide section and clamping section |
| 06/26/2003 | DE10226168C1 Electric immersion pump with mechanical regulation of liquid level via throttle valve operated by float |
| 06/25/2003 | EP1321676A1 Submersible motor-pump for petroleum dispensing stations |
| 06/25/2003 | CN2557728Y Submerged self-suction two-purpose water pump |
| 06/25/2003 | CN2557727Y Sewage deep well pump |
| 06/24/2003 | US6582193 Composite water and power steering pump assembly |
| 06/24/2003 | US6581476 Measuring apparatus |
| 06/19/2003 | US20030113219 System and method for improving petroleum dispensing station dispensing flow rates and dispensing capacity |
| 06/18/2003 | EP1318846A2 Electrically powered surgical irrigator |
| 06/18/2003 | DE20305544U1 Free-standing hand-operated pump for liquids |
| 06/18/2003 | DE10151227C1 Circuit for controlling water supply systems, especially domestic or similar local systems, has controller controlling electrical power fed to alternating current motor via rising edge controller |
| 06/18/2003 | CN1425109A Pump having dynamic shaft seal |
| 06/17/2003 | US6579077 Deep well submersible pump |
| 06/12/2003 | WO2003038286A3 Mixed flow pump |
| 06/11/2003 | EP1318306A1 Device for dispensing a liquid |
| 06/11/2003 | CN2555430Y Hydraulic screw pump driving gear |
| 06/11/2003 | CN2555429Y Horizontal wide V-shape belt mechanical stepless speed governing driving gear for screw pump |
| 06/11/2003 | CN2555428Y 简单泵 Simple Pump |
| 06/11/2003 | CN1111256C Integral pump |
| 06/10/2003 | US6575717 Magnetically levitated pump |
| 06/10/2003 | US6575714 Submersible pump and sprinkler system |
| 06/05/2003 | WO2003046336A1 Downhole pump assembly and method of recovering well fluids |
| 06/05/2003 | US20030105420 Duplex blood pump for heart surgery |
| 06/05/2003 | US20030103852 Dispensing apparatus for a fluid |
| 06/05/2003 | DE20305335U1 Rotor for a pump comprises a brake body which is clamped in the radial and axial directions of the shaft between a surface of the shaft and a surface of the wheel |
| 06/05/2003 | DE20305334U1 Rotor for pump, especially for a pump which is driven by a synchronous motor comprises a buffer and a sealing which are cast in the wheel, in one-piece |
| 06/05/2003 | CA2468102A1 Downhole pump assembly and method of recovering well fluids |
| 06/04/2003 | EP1317051A1 Assembly of rotatable members |
| 06/04/2003 | CN2554399Y Immersed pump liquid-pad thrust device |
| 06/04/2003 | CN2554398Y Water pump clutch with uniformly acceleration starting up and uniformly acceleration off function |
| 06/04/2003 | CN2554397Y Magnetic drive pump for transmitting high-temp medium |
| 06/04/2003 | CN2554396Y Long-axis vertical sump pump |
| 06/04/2003 | CN1110881C Submerged pump motor |
| 06/03/2003 | CA2065324C Subsea pump system |
| 05/30/2003 | WO2003044318A1 Gas turbine for oil lifting |
| 05/29/2003 | US20030099415 Sliding bearing for a magnetically driven centrifugal pump |
| 05/28/2003 | EP1315272A2 Canned pump with temperature sensor |
| 05/28/2003 | CN2553146Y Submersible electric pump with pressure-reducing protector |
| 05/28/2003 | CN2553145Y Self-priming vertical centrifugal pump |
| 05/28/2003 | CN2553144Y Disc centrifugal pump |
| 05/28/2003 | CN2553143Y 单螺杆泵驱动装置 Single screw drives |
| 05/27/2003 | US6568475 Isolation container for a downhole electric pump |
| 05/27/2003 | CA2269590C Aircraft fuel transfer pump with auxiliary fuel line scavenge pump |
| 05/21/2003 | CN2551786Y Deep well pump |
| 05/21/2003 | CN2551785Y Centrifugal water pump |
| 05/20/2003 | US6565335 Vertical pump |
| 05/15/2003 | US20030091450 Pump with electrodynamically supported impeller |
| 05/14/2003 | CN2550532Y Semi closed submersible pump |
| 05/14/2003 | CN1108458C Cooling water pump and method for production thereof |
| 05/13/2003 | US6561754 Inlet structure for pump installations |
| 05/13/2003 | US6561697 Support assembly for a motor shaft of a centrifugal submersible pump |
| 05/13/2003 | CA2119884C Fluid pump with magnetically levitated impeller |
| 05/08/2003 | WO2003038286A2 Mixed flow pump |
| 05/07/2003 | EP1308628A1 Coupling device |
| 05/07/2003 | EP1308627A2 Battery drive circulation pump |
| 05/07/2003 | EP0879359B1 A centrifugal pump device |
| 05/07/2003 | CN2549217Y Coupling immersible pump |
| 05/07/2003 | CN2549216Y D.C. water pump |
| 05/06/2003 | US6558139 Bearings with hardened rolling elements and polymeric cages for use submerged in very low temperature fluids |
| 05/01/2003 | WO2003035225A1 Method for operating a submarine, rotating device and an apparatus for said device |
| 05/01/2003 | US20030081994 Device for transmitting motion between the rotor of a synchronous permanent-magnet motor and a working part |
| 05/01/2003 | US20030080646 Pump driving system of induction type |
| 04/29/2003 | US6554586 Sealed motor driven centrifugal primary fluid pump with secondary fluid flow for cooling primary fluid |
| 04/29/2003 | US6554584 Inline type pump |
| 04/29/2003 | US6554576 Magnetically coupled and self-lubricated pump with bearing burnout protection |
| 04/29/2003 | US6554565 Fluid pump device having filter |
| 04/23/2003 | CN2546661Y Servomotor deep suction sprinkling pump |
| 04/23/2003 | CN2546660Y Non-seal multi-stage self-priming coupling apparatus |
| 04/23/2003 | CN2546659Y Hihg-lift soft shaft water pump |
| 04/23/2003 | CN1412444A Capacitor-start induction electric pump |
| 04/23/2003 | CN1412443A Mechanical equipment capable of converting solar wind energy into air pressure energy and using said pressure energy to lift water |
| 04/22/2003 | US6551078 Pump assembly for an aquarium |
| 04/22/2003 | US6551075 Magnet pump with bi-directional axial self-alignment |
| 04/17/2003 | WO2003031815A2 Downhole well pump |
| 04/17/2003 | WO2003031814A2 Sludge extractor |
| 04/17/2003 | US20030072656 Ultra-thin pump and cooling system including the pump |
| 04/17/2003 | US20030072647 Micro paddle wheel pump for precise pumping, mixing, dispensing, and valving of blood and reagents |
| 04/17/2003 | CA2462609A1 Downhole well pump |
| 04/16/2003 | CN2545400Y Cone core locking separate water pump device |
| 04/16/2003 | CN2545399Y 摩托车抽水装置 Motorcycle pumping device |
| 04/15/2003 | US6547539 Pump assembly with bearing and seal-free reusable impeller for fragile and aggressive fluids |
| 04/15/2003 | US6547530 Fluid pump apparatus |
| 04/15/2003 | US6547514 Technique for producing a high gas-to-liquid ratio fluid |
| 04/15/2003 | CA2264385C A submersible machine |
| 04/10/2003 | DE20301052U1 Centrifugal pump with magnetic drive has casing connected to motor with shaft surrounded by bearing with helical fluid channel |
| 04/03/2003 | WO2003027504A1 Ultra-thin pump and cooling system including the pump |
| 04/03/2003 | WO2003027501A1 Fuel transfer pump |
| 04/03/2003 | US20030063978 Pump control system |
| 04/02/2003 | EP1298325A2 Pump control system |
| 04/02/2003 | CN1407241A Pump device and method for generating adjustable constant fluid volume flow and its application |
| 04/02/2003 | CN1104566C Fuel conveying device with improved conveying pump giometric structure |
| 04/01/2003 | US6541884 Pump unit particularly for medical and food use |
| 04/01/2003 | US6541883 RFI shield structure for an electric motor in a fuel pump housing |
| 04/01/2003 | US6540482 Turbo-type machines |