| Patents for F04B 49 - Control of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for in, or of interest apart from, groups (22,036) |
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| 10/26/1999 | US5971727 High-pressure hydraulic pump with improved performance |
| 10/26/1999 | US5971723 Dosing pump |
| 10/26/1999 | US5971718 Method and apparatus for regulating a volumetric fuel flow between a feed pump and a high-pressure pump |
| 10/26/1999 | US5971714 Electronic CAM compensation of pressure change of servo controlled pumps |
| 10/26/1999 | US5971713 Pulseless liquid delivery system using a pulsatile pump |
| 10/26/1999 | US5971711 Vacuum pump control system |
| 10/20/1999 | EP0950267A1 Process for supplying with air a polymer electrolyte membrane (pem) fuel cell system |
| 10/20/1999 | CN2344582Y Safety auxiliary air inflation device with pressure-limiting function |
| 10/20/1999 | CN1232144A Means and method for varying margin pressure |
| 10/19/1999 | US5967761 Method for modulation lag compressor in multiple compressor system |
| 10/19/1999 | US5967758 Controlling device for controlling rotational speed of engine of hydraulic working machine |
| 10/19/1999 | US5967757 Compressor control system and method |
| 10/19/1999 | US5967756 Power management control system for a hydraulic work machine |
| 10/14/1999 | WO1999051882A1 Diaphragm pump and pump for double-breast pumping |
| 10/13/1999 | EP0949008A2 Device for coating sheets and strips |
| 10/13/1999 | CN2343380Y Cascade controlling device for energy-saving of pumping unit |
| 10/13/1999 | CN1045653C Device and a method for influencing of a valve |
| 10/12/1999 | US5964694 Method and apparatus for cardiac blood flow assistance |
| 10/12/1999 | US5964578 Control valve in variable displacement compressor |
| 10/12/1999 | CA2174929C Relief valve seat for positive displacement pump |
| 10/07/1999 | DE19913248A1 Luftkompressor-Steuersystem und Verfahren zum Steuern eines Luftkompressors Air compressor control system and method for controlling an air compressor |
| 10/07/1999 | DE19812784A1 Pumpe mit integrierter Leistungsregelung Pump with integrated power control |
| 10/06/1999 | EP0947695A2 Control valve for a variable displacement swash plate compressor |
| 10/06/1999 | EP0947694A2 Control valve for a variable displacement swash plate compressor |
| 10/06/1999 | CN2342134Y Automatic controller for air compressor |
| 10/05/1999 | US5960824 Scroll compressor having contoured fixed rotation suction control valve |
| 09/30/1999 | WO1999049208A1 Fuel supply system and powerplant |
| 09/30/1999 | DE19813170A1 Kraftstoff-Versorgungssystem und Motoraggregat Fuel supply system and motor unit |
| 09/29/1999 | EP0945620A2 Pump with integrated power control |
| 09/29/1999 | EP0945619A1 Torque control device for hydraulic pump of hydraulic construction equipment |
| 09/29/1999 | EP0945618A2 Displacement control valve for use in a variable displacement compressor |
| 09/29/1999 | EP0945617A2 Displacement control valve for use in variable displacement compressor |
| 09/28/1999 | US5957674 Variable-discharge high pressure pump |
| 09/28/1999 | US5957669 Diaphragm pump including improved drive mechanism and pump head |
| 09/28/1999 | CA2182446C Apparatus and method for electronically controlling inlet flow and preventing backflow in a compressor |
| 09/23/1999 | DE19910358A1 Fluid pressure production and control system for vehicle with fluid reservoir and pump also pressure accumulator provided with pressure switch and warning system |
| 09/23/1999 | DE19812234A1 Luftfederungsanlage für Fahrzeuge Air suspension system for vehicles |
| 09/23/1999 | DE19812157A1 Regulating gas flow in compressor station, especially one connected into natural gas pipe network |
| 09/23/1999 | DE19811691A1 Operating device for tool towed by agricultural vehicle, e.g. tractor |
| 09/23/1999 | DE19811400A1 Sheet or web coating device, e.g. for providing oil microfilm layer |
| 09/23/1999 | DE19810764A1 Bedarfsabhängig ein- und ausschaltbarer Kompressor und Verfahren zur Steuerung bzw Regelung eines solchen Kompressors Depending on demand switched on and off compressor and method for controlling or regulation of such a compressor |
| 09/22/1999 | EP0943468A2 Air spring installation for vehicles |
| 09/22/1999 | EP0828944B1 Compressed air maintenance device |
| 09/22/1999 | EP0769102B1 Booster pump |
| 09/22/1999 | CN2339790Y Automatic control device of oil-pumping machine |
| 09/21/1999 | US5954482 Compressor having pressure eliminating means |
| 09/21/1999 | US5953979 Variable capacity wobble plate compressor |
| 09/16/1999 | DE19810867A1 Fuel pump system used with fuel injected internal combustion engines of motor vehicles |
| 09/15/1999 | EP0942173A1 Compressor unit and control device used thereby |
| 09/15/1999 | EP0941876A2 Demand responsive on and off switchable compressor and method for controlling such a compressor |
| 09/15/1999 | EP0941404A1 Pumping and metering device |
| 09/15/1999 | CN1228510A Pressure-pulsation-reducing compressor |
| 09/14/1999 | US5951261 Reversible drive compressor |
| 09/14/1999 | US5951260 Electronic air compressor control system for use with a wet tank |
| 09/14/1999 | US5951258 For controlling an electrohydraulic system |
| 09/14/1999 | US5950757 Power steering devices |
| 09/14/1999 | US5950431 Tandem pump apparatus |
| 09/14/1999 | CA2088824C Capacity control mechanism for scroll-type compressor |
| 09/10/1999 | WO1999045274A1 Scroll compressor with combined pressure ratio and pressure differential relief valve |
| 09/09/1999 | DE19807258A1 Automatic flow regulator valve |
| 09/08/1999 | EP0940917A1 Driving circuit with several sensors |
| 09/08/1999 | EP0940583A2 Variable displacement pump control system |
| 09/08/1999 | EP0940581A2 Pressure pulsation muffler for the discharge valve of a compressor |
| 09/08/1999 | EP0856107B1 Output regulation with load sensing |
| 09/08/1999 | EP0832360B1 Variable displacement electro-hydraulic pump |
| 09/08/1999 | CN2337331Y Non-water power-off and timing controller for water pump |
| 09/08/1999 | CN1228140A Electromagnetically suspended and rotated centrifugal pumping apparatus and method |
| 09/07/1999 | US5947702 High precision fluid pump with separating diaphragm and gaseous purging means on both sides of the diaphragm |
| 09/07/1999 | US5947701 Simplified scroll compressor modulation control |
| 09/07/1999 | US5947700 Fluid vacuum safety device for fluid transfer systems in swimming pools |
| 09/07/1999 | US5947695 Control device for a variable displacement hydraulic pump |
| 09/07/1999 | US5947693 Linear compressor control circuit to control frequency based on the piston position of the linear compressor |
| 09/07/1999 | US5947692 For processing blood and biological cellular suspensions |
| 09/07/1999 | US5947690 Actuator valve for pressure switch for a fluidic system |
| 09/07/1999 | US5947689 Automated, quantitative, system for filtration of liquids having a pump controller |
| 09/02/1999 | WO1998031935A9 Linear peristaltic pump |
| 09/01/1999 | EP0939225A2 Power control circuit for a plurality of hydrostatic variable displacement pumps |
| 09/01/1999 | CN1227313A Apparatus and method for ganging multiple open circuit pumps |
| 08/31/1999 | US5944495 For pumping fluids from a fluid source to a fluid sink |
| 08/31/1999 | US5944493 Radial piston fluid machine |
| 08/31/1999 | US5944492 Hydraulic pump control system |
| 08/31/1999 | US5944491 Piston-type compressor with improved shock absorption during start up |
| 08/31/1999 | US5944049 Apparatus and method for regulating a pressure in a chamber |
| 08/26/1999 | DE19906230A1 Ganging apparatus for multiple open circuit pumps in e.g. hydraulic drive system |
| 08/25/1999 | EP0937204A1 Method for generating high pressurized fuel and a system for generating thereof |
| 08/24/1999 | US5941691 Overcenter mechanism for a pressure powered pump |
| 08/24/1999 | US5941690 Constant pressure variable speed inverter control booster pump system |
| 08/24/1999 | US5941689 Control system and method to control variable hydraulic pumps with a temperature sensor |
| 08/24/1999 | US5941533 Volumetric pump/valve sphincter seal |
| 08/18/1999 | EP0936577A1 Method and system for checking the proper functioning of an apparatus by comparison with the functioning of another apparatus |
| 08/18/1999 | EP0936352A2 Fluid pump control apparatus and method |
| 08/18/1999 | EP0935558A1 Suction device |
| 08/18/1999 | CN1226307A Hybrid magnetically suspended and rotated centrifugal pumping apparatus and method |
| 08/18/1999 | CN1225976A Fluid pump control apparatus and method |
| 08/17/1999 | CA2176909C Refrigerant compressor with rotation detecting means |
| 08/12/1999 | WO1999040318A1 Apparatus for executing activities assisted by hydromotors and a hydraulic transformer for use in such an apparatus |
| 08/12/1999 | DE19803529A1 Pneumatic control device for a reciprocating piston dosing pump |
| 08/11/1999 | EP0935107A2 Method and apparatus for controlling variable displacement compressor |
| 08/11/1999 | EP0934463A1 System and method for pump control and fault detection |
| 08/10/1999 | US5935106 Occlusion detection system for an infusion pump |