| 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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| 04/30/2008 | EP1915533A1 Regulator device for a hydrostatic piston machine with electronic control unit |
| 04/30/2008 | CN201053389Y Hydraulic motor speed regulating controller |
| 04/30/2008 | CN201053385Y Double head pump application system and its circuit control system |
| 04/30/2008 | CN101169114A Pump off control method for pump jack and pump jack control device |
| 04/30/2008 | CN101169078A Hydraulic chassis engineering machinery walking control method and control system |
| 04/30/2008 | CN100385116C Air compressor using variable frequency speed-pressure regulation |
| 04/29/2008 | CA2488874C Compressor with capacity control |
| 04/24/2008 | WO2008046544A1 Hydraulic machine tool |
| 04/24/2008 | US20080095643 Active intake pressure control of downhole pump assemblies |
| 04/24/2008 | US20080095641 Linear Compressor |
| 04/24/2008 | US20080095640 Controller for a motor and a method of controlling the motor |
| 04/24/2008 | US20080095639 Controller for a motor and a method of controlling the motor |
| 04/24/2008 | US20080095638 Controller for a motor and a method of controlling the motor |
| 04/24/2008 | US20080095637 Solid state fluid level sensor |
| 04/24/2008 | US20080092961 Flow cytometer system with unclogging feature |
| 04/24/2008 | US20080092750 Method for the Electrical Protection of an Electrical Household Appliance |
| 04/24/2008 | DE212005000082U1 Fluidmaschine oder Pumpe und Installation mit einer Fluidmaschine oder Pumpe Fluid engine or pump and installation with a fluid machine or pump |
| 04/24/2008 | DE202007011556U1 Hochwasserschutzbox Hochwasserschutzbox |
| 04/24/2008 | DE19958257B4 Halboffener Hydraulikkreislauf Semi-open hydraulic circuit |
| 04/24/2008 | DE19713197B4 Verfahren zum Betrieb einer Klimaanlage in einem Kraftfahrzeug sowie Klimaanlage mit einem Kältemittelkreis Method for operating an air conditioner in a motor vehicle and air conditioner with a refrigerant circuit |
| 04/24/2008 | DE102007029670A1 Hydraulische Arbeitsmaschine Hydraulic machine |
| 04/23/2008 | EP1914614A1 Proportional pressure control valve |
| 04/23/2008 | EP1913259A1 Control valve unit with alternating stops |
| 04/23/2008 | CN201050473Y Pumping unit anti-slip vehicle lock |
| 04/23/2008 | CN201050472Y Natural gas station compressor Regulation device capable of adapting to gas inlet pressure change |
| 04/23/2008 | CN201050471Y Oil extractor |
| 04/23/2008 | CN201050470Y Gearless transmission oil pumping unit |
| 04/23/2008 | CN101165349A Method of compressing and feeding inactive gas and apparatus therefor |
| 04/23/2008 | CN100383389C Operation controller for reciprocating compressor and method thereof |
| 04/23/2008 | CN100383388C Compressor |
| 04/23/2008 | CN100383387C Hydraulic pump and motor |
| 04/23/2008 | CN100383384C Hermetic compressor |
| 04/23/2008 | CN100383363C Direct ground driving gear of screw pump |
| 04/22/2008 | USRE40257 Compressor pulse width modulation |
| 04/22/2008 | US7361000 Tandem pump unit |
| 04/22/2008 | US7360999 Means for using single force sensor to supply all necessary information for determination of status of medical pump |
| 04/17/2008 | WO2008043879A1 Pump device |
| 04/17/2008 | WO2008012070A3 Method and device for analyzing vibrations in a machine |
| 04/17/2008 | US20080089792 Operation Control Device And Method Of Compressor |
| 04/17/2008 | DE10316395B4 Membranpumpe Diaphragm pump |
| 04/17/2008 | DE102006048071A1 Druckluftversorgungsanlage und Verfahren zur Parameter-Ermittlung der Anlage Compressed air supply system and method for determining parameters of the system |
| 04/16/2008 | EP1911391A1 System for evacuating detached tissue in continuous flow irrigation endoscopic procedures |
| 04/16/2008 | EP1910679A2 Reciprocating piston pump with air valve, detent and poppets |
| 04/16/2008 | CN201047345Y Reciprocating type hydraulic diaphragm pump differential pressure type oil mass automatic control device |
| 04/16/2008 | CN101163887A System and method for controlling a variable speed compressor during stopping |
| 04/16/2008 | CN101162018A Decelerator-free oil-submersible screw pump |
| 04/10/2008 | WO2008042721A2 Method and apparatus for detecting air bubbles |
| 04/10/2008 | WO2008042308A2 Safe over-center pump/motor |
| 04/10/2008 | WO2008041996A1 Refrigerant system with multi-speed pulse width modulated compressor |
| 04/10/2008 | WO2008016285A3 Controlling apparatus for linear compressor |
| 04/10/2008 | WO2008005443A3 Pump apparatus and method |
| 04/10/2008 | US20080083461 Fluid exchange apparatus with locking flow alignment device |
| 04/10/2008 | DE10341946B4 Verfahren und Vorrichtung zum Betreiben einer elektronisch steuerbaren Motoreinheit Method and apparatus for operating an electronically controllable motor unit |
| 04/10/2008 | DE10114042B4 Hydraulikanlage für zwei Konstantpumpen Hydraulic system for two fixed displacement pumps |
| 04/10/2008 | CA2664764A1 Safe over-center pump/motor |
| 04/09/2008 | EP1907817A2 Method and apparatus for maximizing liquid aspiration from small vessels |
| 04/09/2008 | EP1907702A2 Linear compressor controller |
| 04/09/2008 | EP1907701A1 Compressor, in particular piston compressor |
| 04/09/2008 | CN201045343Y Oil-well pump protectors |
| 04/09/2008 | CN201045342Y Oil pumping machine fault automatic control and wireless alarming device |
| 04/09/2008 | CN101158345A Air compressor pressure automatic control device |
| 04/09/2008 | CN101158343A Automatic speed regulation air compressor |
| 04/09/2008 | CN100380103C Manufacturing apparatus and life predictive method for whirler |
| 04/09/2008 | CN100380035C Differential pressure regulating valve |
| 04/09/2008 | CN100379994C Gas compressor and air-conditioning system |
| 04/09/2008 | CN100379983C Variable displacement compressor |
| 04/09/2008 | CN100379472C Fluid pressure actuated blood pumping systems and methods with continuous inflow and pulsatile outflow conditions |
| 04/08/2008 | US7354253 Oil pump |
| 04/08/2008 | US7354250 Variable capacity rotary compressor |
| 04/08/2008 | CA2355612C Device for continuous regulation of the gas flow rate processed by a reciprocating compressor |
| 04/05/2008 | CA2562707A1 Variable capacity natural gas compressor |
| 04/03/2008 | WO2008000698B1 Equipment for continuous regulation of the flow rate of reciprocating compressors |
| 04/03/2008 | US20080080986 Axial Piston Machine |
| 04/03/2008 | US20080080982 Evacuation apparatus |
| 04/03/2008 | US20080080981 Compensating temperature-induced errors during piston movement |
| 04/03/2008 | DE102006043863A1 Circuit arrangement for controlling drive motor of compressor for production of compressed air, has outlet valve activated when drive motor reaches operating speed or rotational speed close to operating speed |
| 04/02/2008 | EP1906013A2 Metering pump, spraying device for spraying agents and method for operating such a spraying device |
| 04/02/2008 | EP1906012A1 Device and method for controlling a two-cylinder pump for high-viscosity fluids |
| 04/02/2008 | EP1904745A1 Device for driving an electromagnetic pump and related electromagnetic dosing pump |
| 04/02/2008 | EP1527279B1 Device for compressing gases |
| 04/02/2008 | EP1290346B1 Temperature control with constant cooling flow and temperature for vacuum generating device |
| 04/02/2008 | CN201043539Y Hexahedral pressing machine hydraulic control apparatus for differential oil supply in heating and pressure maintaining direction |
| 04/02/2008 | CN101155993A Pressure accumulating apparatus |
| 04/02/2008 | CN101155992A System and method for a variable home position dispense system |
| 04/02/2008 | CN101155990A Capacity control valve |
| 04/02/2008 | CN101153585A Evacuation apparatus |
| 04/02/2008 | CN100378333C Vertical oil pumping unit balancing mechanism fast braking device |
| 04/02/2008 | CN100378329C Control valve for variable displacement compressor |
| 04/02/2008 | CN100378327C Locking device for dual capacity compressor |
| 04/02/2008 | CN100378324C Control valve for variable displacement compressor |
| 04/01/2008 | US7352545 Compressor terminal fault interruption method and apparatus |
| 04/01/2008 | US7351288 Shock absorbing fluidic actuator |
| 03/27/2008 | WO2007136718A3 Heart booster pump |
| 03/27/2008 | US20080075607 Displacement Changing Control Device for Scroll Compressors |
| 03/27/2008 | US20080075606 Pump Apparatus |
| 03/27/2008 | DE202006017554U1 Vakuumpumpe Vacuum pump |
| 03/26/2008 | EP1901859A1 Method for controlling a cleaning device and cleaning device for carrying out said method |
| 03/26/2008 | CN201041147Y Piston type energy accumulator liquid level control transmission device |
| 03/26/2008 | CN201041144Y Cylindrical pumping unit |
| 03/26/2008 | CN201041138Y Variable capability pump |