Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids
Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928)
08/2012
08/01/2012EP2129979B1 Method for operating a variable displacement compressor and system with a variable displacement compressor
08/01/2012CN102619756A Twin-screw compressor slide valve position indicator
07/2012
07/25/2012CN202348675U Speed regulation device and screw rod compressor
07/25/2012CN102612600A Rotary vane compressor
07/18/2012CN102597524A Heat pump device, two-stage compressor, and method of operating heat pump device
07/18/2012CN102588288A Discharge pressure estimation for compressor
07/12/2012WO2012092739A1 Screw compressor having slide valve with flexible volume ratio
07/11/2012CN202326251U 带有消声结构的螺杆式压缩机的滑阀 Spool with anechoic structure screw compressor
07/11/2012CN202326250U 螺杆制冷压缩机固定内容积比机构 Screw refrigeration compressor fixed internal volume ratio mechanism
07/11/2012CN202326249U 螺杆式空压机控制系统 Screw Compressors Control Systems
07/11/2012CN202326248U Double-drive spindle control system for oil-free dry vacuum pump
07/11/2012CN102562597A Liquid impact prevention device for liquid injection cooling type single screw compressor
07/11/2012CN101865123B Compressor controller and compressor diagnostic and protection method
07/11/2012CN101614208B Device for controlling sliding vane of rotary compressor
07/04/2012EP2472115A1 Spherical expansion compressor adapted to variable working conditions
07/04/2012EP1763620B1 Compressor unloading valve
07/04/2012CN102549268A Method for controlling a compossed device and compossed device wherein such method is applied
07/04/2012CN102549265A Screw compressor
07/04/2012CN102536823A Control method for variable volume and variable discharge pressure of variable-frequency screw compressor
07/04/2012CN101611229B 回转式压缩机 Rotary Compressor
07/04/2012CN101532492B Screw-type vacuum pump
07/03/2012US8210836 Vane cell pump with adjustable output
06/2012
06/27/2012CN1688817B Helical compressor for refrigerating medium
06/27/2012CN101852209B Energy-saving inverse proportion valve
06/27/2012CN101629738B Capacity modulation compressor and air conditioning system having the same
06/26/2012US8206128 Refrigeration cycle system
06/21/2012WO2012080613A2 Scroll compressor for refrigeration
06/21/2012WO2012080612A2 Scroll refrigeration compressor
06/21/2012WO2012080611A1 Thermodynamic system provided with a plurality of compressors
06/21/2012WO2012080610A2 Scroll refrigeration compressor
06/21/2012WO2012080609A2 Scroll refrigeration compressor
06/21/2012DE102010055125A1 Vacuum pump e.g. vane cell pump for brake-force booster of motor vehicle, comprises housing, at which suction port and pressure port is arranged, and conveyor, where housing and conveyor comprise suction chamber
06/14/2012WO2011066629A8 Method for controlling a composite device and a composite device in which this method can be applied
06/07/2012WO2012073165A2 Vacuum pump, in particular for motor vehicles
06/06/2012EP2461040A1 Vacuum pump and joint of shaft and rotary piston
06/06/2012EP2461038A2 Operation control method for BOG multistage displacement compressor
05/2012
05/30/2012EP2458217A1 Temperature control through pulse width modulation
05/30/2012CN202250869U Gas circuit control system of screw compressor
05/30/2012CN202250868U Intelligent energy-saving control system for screw air compressor
05/30/2012CN202250864U Two-stage variable-capacity rotary compressor and air-conditioning system thereof
05/30/2012CN1993554B Capacity variable type rotary compressor and driving method thereof and driving method for air conditioner having the same
05/30/2012CN102477980A 螺杆压缩机 Screw compressor
05/29/2012US8186982 Adjustable rotary pump with reduced wear
05/29/2012US8186979 Capacity varying type rotary compressor and refrigeration system having the same
05/23/2012CN202228356U Scroll compressor for heat pump type air conditioner of cooling and synergia gas mixing type electric automobile
05/23/2012CN102465880A 螺旋式压缩机的容积比调整机构 Volume ratio adjusting mechanism screw compressor
05/23/2012CN101672271B Air compressor energy-saving controller with constant pressure and dormancy and control method
05/23/2012CN101389867B Freezing device
05/18/2012WO2012064932A1 Compressor and enclosure assembly for electrical components
05/16/2012CN102459914A 用于预测真空泵的转子旋转时的故障的方法及相关的抽吸装置 Method for predicting failure of the vacuum pump when the rotation of the rotor and associated suction means for
05/16/2012CN102459906A 螺杆式压缩机 Screw compressors
05/09/2012CN102449312A A compressor
05/09/2012CN102444580A Digital compressor with directly started brushless permanent magnet motor
05/09/2012CN101377198B Capacity control device for screw compressor
05/03/2012WO2012056623A1 Two-stage pressure boosting type refrigeration cycle device
05/03/2012WO2012005497A3 Device and method for controlling compressor, and refrigerator including same
05/02/2012EP2447535A2 Motor-driven compressor and controller therefor
05/02/2012EP2446147A1 Method for predicting a rotation fault in the rotor of a vacuum pump, and associated pumping device
05/02/2012CN102434462A Mobile compressor oil saving system and method based on flow monitoring
04/2012
04/26/2012WO2007140550A8 Device for regulating the operating pressure of an oil-injected compressor installation
04/25/2012EP2444671A1 Screw compressor
04/25/2012EP2444670A2 Scroll compressor with partial unloader for start-up
04/25/2012CN102428277A 诊断系统 Diagnostic System
04/18/2012CN202194830U 采用整体式双开门结构的空压机电控箱 Double-door structure using integrated air compressor electrical control box
04/18/2012CN102422024A Compressor having capacity modulation assembly
04/18/2012CN101675246B 压缩机以及使用压缩机的冷冻装置 A compressor and a refrigeration apparatus using a compressor
04/18/2012CN101205920B 涡旋式压缩机的过热防止装置 The scroll compressor means for preventing overheating
04/11/2012CN102414448A 压缩机 Compressor
04/05/2012WO2012042894A1 Positive displacement compressor
04/05/2012WO2012042891A1 Screw compressor
04/04/2012EP2436929A1 Screw expander
04/04/2012CN202182029U 螺杆压缩机智能控制装置 Screw compressor intelligent control device
04/04/2012CN102400917A 一种降低封闭式永磁压缩机震动和噪音的方法 A method of reducing vibration and noise of the compressor hermetic permanent magnet Method
03/2012
03/28/2012EP2434159A2 Scroll compressor with a check valve
03/28/2012EP2433007A2 Diagnostic system
03/28/2012CN102395792A Roughing pump method for a positive displacement pump
03/28/2012CN101379297B Improved compressor device
03/22/2012WO2012037229A1 Volume ratio control system and method
03/21/2012CN102384088A Eddy compressor control system and method based on torque and flow intelligent soft measurement
03/21/2012CN102384085A Compressor having capacity modulation system
03/15/2012DE102010045152A1 Pump device for creating low pressure in brake system of motor vehicle, has rotational speed detector detecting rotational speed of drive device during operation of pump device, and evaluation unit evaluating detected rotational speed
03/07/2012CN202157965U 智能调节真空系统 Smart regulation vacuum system
03/07/2012CN202157964U 一种智能调节真空系统 An intelligent regulator vacuum system
03/07/2012CN202157962U 一种螺杆气体增压机 A screw gas turbocharger
03/07/2012CN102367798A Vortex compressor with balancing and energy saving device
03/01/2012WO2012026200A1 Compressor
02/2012
02/29/2012EP2423508A2 capacity control for a screw compressor
02/29/2012CN102364108A Frequency conversion type screw air compressor electric cabinet
02/23/2012WO2011121322A3 Vacuum pumping system
02/23/2012DE10159835B4 Vakuumpumpsystem The vacuum pumping system
02/22/2012EP2419641A2 Roughing pump method for a positive displacement pump
02/16/2012WO2011058848A9 Rotary vane compressor
02/15/2012EP2417356A2 Compressor having capacity modulation assembly
02/15/2012CN202144794U 螺杆压缩机变频一拖三系统 Frequency dragged three screw compressor system
02/15/2012CN102356239A Rotary vacuum pump with a device for decoupling the driving motor
02/15/2012CN102352842A Novel water-cooling semi-sealed helical-lobe compressor
02/01/2012EP2412979A2 Pressure pump with suction nut
02/01/2012EP2411678A1 A compressor
02/01/2012EP2411677A2 Compressor
02/01/2012CN202132231U 带内置式过流过热保护器的直流变频涡旋压缩机 With built-in overcurrent protection device overheating DC inverter scroll compressor
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