| Patents for F04C 11 - Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations (1,800) |
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| 06/24/1998 | CN1185537A Motor-driven hydraulic pump and driving coupling for same |
| 06/17/1998 | EP0847497A1 Apparatus for recovery of fuel vapor |
| 06/16/1998 | CA2131181C Compressor slide valve control |
| 06/11/1998 | WO1998025029A1 Motor pump unit |
| 05/26/1998 | US5755566 Self-driving fluid pump |
| 05/22/1998 | WO1998021478A1 Twin-cylinder impeller pump |
| 05/22/1998 | CA2242395A1 Twin-cylinder impeller pump |
| 05/20/1998 | EP0843097A1 Fuel divider |
| 05/20/1998 | EP0843096A1 Coupling device for connecting a fuel pump and a vacuum pump having the same casing |
| 05/20/1998 | EP0843095A1 Apparatus for feeding of working media of an internal combustion engine of a power vehicle |
| 05/19/1998 | US5752812 Vapor recovery pump |
| 05/14/1998 | WO1998020259A2 Cascaded progressing cavity pump system |
| 05/14/1998 | WO1997047884A3 Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor |
| 04/16/1998 | WO1998015456A1 Demand system for pneumatic source |
| 04/14/1998 | US5738505 Perfected twin-screw pump, particularly suitable for the pumping of biphase fluids in a submerged environment |
| 04/08/1998 | EP0834788A1 Autonomous device for the flow control of a secondary fluid in relation to a primary fluid flow |
| 03/10/1998 | US5725362 Pump assembly |
| 03/10/1998 | US5725287 Hydraulic motor vehicle brake installation |
| 03/10/1998 | US5724812 Variable displacement apparatus and method of using same |
| 03/05/1998 | DE19737846A1 Oil pump |
| 02/26/1998 | DE19740865A1 Rotary piston motor with rotor formed as elongated tube |
| 02/19/1998 | WO1998006610A1 Motor pump for a vehicle braking system |
| 02/18/1998 | EP0824195A1 Sound attenuating motor end shield |
| 02/15/1998 | CA2212782A1 Sound attenuating motor end shield |
| 02/12/1998 | DE19632213A1 Pumpenaggregat für ein Fahrzeugbremssystem Pump unit for a vehicle braking system |
| 02/11/1998 | EP0823024A1 Rotary pump |
| 01/28/1998 | EP0820817A2 Metering gearhead dispensing apparatus |
| 01/23/1998 | CA2208395A1 Metering gearhead dispensing apparatus |
| 01/21/1998 | EP0819854A2 Motor-driven Hydraulic pump and driving coupler used in the same |
| 01/17/1998 | CA2210621A1 Motor-driven hydraulic pump and driving coupler used in the same |
| 01/15/1998 | DE19627668A1 Drive device esp. as steering assist for motor vehicle |
| 01/14/1998 | EP0817802A1 Method of producing solutions of cellulose in water-containing tertiary-amin-n-oxides |
| 01/08/1998 | WO1998000641A1 Apparatus for recovery of fuel vapor |
| 01/08/1998 | DE19627405A1 Electric motorised pump unit |
| 01/08/1998 | CA2228972A1 Apparatus for recovery of fuel vapor |
| 01/06/1998 | US5704774 Pump with twin cylindrical impellers |
| 01/06/1998 | US5704767 Integral pump and flow meter device |
| 12/30/1997 | US5702234 Fluid pump with bearing set having lubrication path |
| 12/18/1997 | WO1997047884A2 Apparatus for providing pressurized liquid to a device, high speed flood cooled motor/generator therefor |
| 12/11/1997 | DE19622722A1 Micro-motor and micro-pump e.g. for technical and medical fields |
| 12/11/1997 | DE19622518A1 Double hydraulic pump assembly |
| 12/10/1997 | EP0811765A2 Internal combustion engine with two-stage internal gear pump |
| 12/03/1997 | EP0749530B1 Dosing cap |
| 12/02/1997 | US5692884 Pump assembly for hot melt tanks |
| 12/02/1997 | US5692883 Compact electro-hydraulic unit |
| 11/25/1997 | US5689956 Hydraulic variable speed drive |
| 11/13/1997 | DE19618452A1 Vapour control valve for fuel pump for internal combustion engine |
| 11/11/1997 | US5685266 In an engine |
| 11/05/1997 | EP0804687A1 Liquid ring compressor/turbine and air conditioning systems utilizing the same |
| 10/23/1997 | DE19615725A1 Gear pump for fluids |
| 10/02/1997 | DE19612519A1 Hydraulic transmission for bicycles |
| 09/24/1997 | EP0797002A1 Rotary positive displacement hydraulic machines |
| 09/23/1997 | US5670852 Pump motor and motor control |
| 09/16/1997 | US5667369 Volumetric pump driven by a continuous tube |
| 09/04/1997 | WO1997032130A1 Vapor recovery pump |
| 09/04/1997 | CA2247054A1 Vapor recovery pump |
| 08/14/1997 | DE19604517A1 Geared pump for vehicle gearchange mechanism |
| 08/12/1997 | US5655892 Thermally actuated fuel pump vapor vent valve |
| 08/06/1997 | EP0787260A1 Multiple-chamber gear pump |
| 06/18/1997 | EP0779433A1 Electric fuel pump for motor vehicle |
| 06/12/1997 | DE19539659A1 Hydraulic rotary pressure converter |
| 06/11/1997 | EP0656098B1 Compact gerotor pump |
| 06/10/1997 | US5636523 Liquid ring compressor/turbine and air conditioning systems utilizing same |
| 06/05/1997 | WO1997020143A1 Fluid pump with bearing set having lubrication path |
| 05/22/1997 | DE19542527A1 Supply device for conveying and/or processing low viscosity fluid |
| 05/14/1997 | EP0638144B1 Gear machine |
| 05/07/1997 | CN1149108A Perfected twin-screw pump, particularly suitable for pumping of biphase fluids in submarine environment |
| 04/09/1997 | CN1146963A Compact electro-hydraulic unit |
| 04/03/1997 | WO1997012124A1 Hydraulic machine having a gear ring which is divided radially into an inside inner part having the first internal toothing and an outside outer part having the second external toothing, which parts are rotatable relative to one another |
| 04/03/1997 | WO1997012123A1 Hydraulic machine having axially joined lateral plates on both sides of gearwheel and gear ring, which plates move jointly with the gearwheel or the gear ring |
| 04/03/1997 | DE19536061A1 Hydraulische Maschine Hydraulic machine |
| 04/03/1997 | DE19536060A1 Hydraulische Maschine Hydraulic machine |
| 04/01/1997 | US5616015 High displacement rate, scroll-type, fluid handling apparatus |
| 03/20/1997 | WO1997010437A1 Wellhead drive brake system |
| 03/12/1997 | EP0761974A1 Screw-type compressor |
| 03/12/1997 | EP0761970A1 Compact electrohydraulic apparatus |
| 03/12/1997 | EP0761969A1 Screw pump |
| 03/11/1997 | US5609474 For pumping lubricant from an oil pan |
| 03/06/1997 | DE19634822A1 Tandem pump hydraulic supply |
| 02/25/1997 | US5605448 AC fuel pump |
| 02/19/1997 | EP0758432A1 Vapor control system |
| 02/11/1997 | US5601422 Assembly for feeding fuel out of a supply tank to an internal combustion engine |
| 02/04/1997 | US5599171 Rotary, self-priming, liquip pump, and an impellers and shaft assembly therefor, and a flexible-impeller pump assembly |
| 01/15/1997 | EP0753666A1 Gear pump or motor |
| 01/15/1997 | CN1140485A Hydraulic speed variator |
| 01/14/1997 | US5593287 Fuel feed pump |
| 01/07/1997 | US5591019 Vapor recovery pump |
| 12/27/1996 | EP0749530A1 Dosing cap |
| 12/27/1996 | CA2177340A1 Apparatus for limiting eccentric deviations of a polished rod in pumping applications |
| 12/24/1996 | US5586875 Assembly of rotary hydraulic pumps |
| 12/11/1996 | EP0747596A2 High displacement rate, scrolltype, fluid handling apparatus |
| 12/10/1996 | US5582510 Assembly for feeding fuel from a supply tank to an internal combustion engine |
| 12/03/1996 | US5580222 Liquid ring vacuum pump and method of assembly |
| 12/03/1996 | US5580213 Electric fuel pump for motor vehicle |
| 11/20/1996 | EP0743457A1 Centrifugal pump with flexible vanes priming pump |
| 11/20/1996 | EP0742872A1 Rotary pump and motor assembly |
| 11/19/1996 | US5575629 Vapor control system |
| 11/05/1996 | US5571003 Fuel pump with and method to modulate vapor purge port pressure pulses |
| 10/24/1996 | DE19513822A1 Einrichtung zum Fördern von Kraftstoff aus einem Vorratstank zu einer Brennkraftmaschine eines Kraftfahrzeuges Means for feeding fuel from a storage tank to an internal combustion engine of a motor vehicle |
| 10/22/1996 | US5567138 Method and apparatus for limiting eccentric deviations of a rotating polished rod in rotary pumping applications |