| Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928) |
|---|
| 03/17/2010 | CN101675246A Compressor and refrigeration device using the same |
| 03/17/2010 | CN101672271A Air compressor energy-saving controller with constant pressure and dormancy and control method |
| 03/10/2010 | CN201420675Y Intelligent energy-saving control system for screw air compressor |
| 03/04/2010 | WO2010024044A1 Safety valve for compressor |
| 03/03/2010 | CN101660529A On-line control method of screw compressor |
| 02/25/2010 | WO2010021491A1 Variable capacity type rotary compressor, cooling apparatus having the same, and method for driving the same |
| 02/25/2010 | US20100047103 Integral Slide Valve Relief Valve |
| 02/24/2010 | CN201412338Y Two-way safety cutoff valve of spiral lobe compressor air storage tank |
| 02/24/2010 | CN201412337Y Back-pressure balanced adjustable minimum pressure valve of screw compressor |
| 02/24/2010 | CN201412336Y Oil-line control system of two-stage compression twin-screw air compressor |
| 02/17/2010 | EP2154370A1 Compressor and refrigeration device using the same |
| 02/17/2010 | CN201407155Y Intelligent energy-saving control device for air compressor |
| 02/17/2010 | CN101652570A Mechanism for controlling and operating compressor capacity and air conditioner having the same |
| 02/10/2010 | CN201401316Y Intelligent power saver of air compressor |
| 02/04/2010 | US20100028189 rotary pump with vanes |
| 02/03/2010 | CN201396284Y Gas quantity proportion regulation control system of air compressor |
| 02/03/2010 | CN201396283Y Injection temperature control valve of air compressor |
| 02/02/2010 | US7654098 Cooling system with variable capacity control |
| 01/28/2010 | WO2010011081A1 Compressor and air-conditioner having the same |
| 01/28/2010 | WO2010009939A1 Vacuum pump in particular roots type pump |
| 01/28/2010 | DE102008034073A1 Vacuum pump i.e. roots pump, has valve opened during exceeding of maximum pressure difference between pressure side and suction side of suction chamber, and valve unit designed as pivotable valve flap |
| 01/27/2010 | CN101634500A Refrigeration cycle system |
| 01/27/2010 | CN100585186C Capacity varying type rotary compressor |
| 01/27/2010 | CN100585185C Compressor and operation method |
| 01/27/2010 | CN100585184C Vortex compressor with anti-inversion set |
| 01/21/2010 | US20100011807 Capacity modulation compressor and air conditioning system having the same |
| 01/21/2010 | US20100011806 Motor, compressor and air conditioning system having the same |
| 01/20/2010 | CN101629572A Stall and surge detection system and method |
| 01/20/2010 | CN100582486C Volumetric screw compressor provided with delivery adjustment device |
| 01/19/2010 | US7648342 Compressor protection and diagnostic system |
| 01/19/2010 | US7647783 Compressor diagnostic system |
| 01/13/2010 | EP2143952A1 Mechanism for controlling and operating compressor capacity and air conditioner having the same |
| 01/13/2010 | CN201381975Y Air compressor comprehensive intelligent control device |
| 01/13/2010 | CN101624987A Pressure control device of rotary compressor and application thereof |
| 01/13/2010 | CN101624986A Slip sheet control device of rotary compressor |
| 01/06/2010 | EP1456589B1 Control method for mixed refrigerant based natural gas liquefier |
| 01/06/2010 | CN201377430Y Built-in pressure protection device for single-screw refrigeration compressor |
| 01/06/2010 | CN101619722A Method and circuit for controlling temperature of power module |
| 12/30/2009 | WO2009156287A1 Method for cleaning vacuum pumps |
| 12/30/2009 | EP2137810A1 A control system for a compressor actuated by an electric motor |
| 12/30/2009 | EP2137409A2 Compressor reverse rotation of variable duration on start up |
| 12/30/2009 | CN101614208A Device for controlling sliding vane of rotary compressor |
| 12/30/2009 | CN100576703C Compressor protection and diagnostic system |
| 12/24/2009 | US20090317261 Pumping system and method of operation |
| 12/24/2009 | DE102004058399B4 Pumpe Pump |
| 12/23/2009 | WO2009124845A3 Fluid-sealed or fluid-lubricated vacuum pump |
| 12/23/2009 | EP2134968A2 A vaccum pump provided with a device for its deactivation |
| 12/23/2009 | CN201368028Y Intelligent Roots blower unit |
| 12/23/2009 | CN101611229A 回转式压缩机 Rotary Compressor |
| 12/23/2009 | CN101608623A Oil-saving system of screw compressor driven by diesel engine and method thereof |
| 12/23/2009 | CN100572817C Air-tight compressor thermal protector |
| 12/23/2009 | CN100572816C Variable capacity multi-cylinder rotary compressor and its running method |
| 12/17/2009 | US20090311119 Screw Compressor Capacity Control |
| 12/16/2009 | EP2131648A1 A method in a milking system for creating a required vacuum level and computer program products |
| 12/16/2009 | CN201363277Y Safe guide valve and safe buffering double-use valve using same |
| 12/10/2009 | WO2009147426A1 Vacuum pumping systems |
| 12/10/2009 | WO2009147241A2 Apparatus for indirect conversion of ocean wave energy into electric energy |
| 12/10/2009 | US20090304524 Method of Operating a Pumping System |
| 12/09/2009 | CN101600885A 压缩机 Compressor |
| 12/09/2009 | CN101600884A 螺旋式压缩机容量控制 A screw compressor capacity control |
| 12/09/2009 | CN101598129A Direct-current power-driven vacuum pump used for automobile |
| 12/09/2009 | CN100567737C Automatic unloading one-way valve of air compressor |
| 12/03/2009 | WO2009145028A1 Electric compressor |
| 12/03/2009 | DE102008025327A1 Refrigerator compressor, particularly semi-hermetic refrigerator compressor, has multiple star shaped cylinders arranged around crank shaft, and housing that has base wall |
| 12/03/2009 | DE102008025186A1 Rotary piston machine for use as pump, has cylindrical surfaces formed by cylindrical elements, and valve plate with outlet openings arranged in perforated plate that closes stationary housing in front side |
| 12/02/2009 | CN201354737Y Screw compressor power-off back-spraying prevention design |
| 12/02/2009 | CN100565050C Refrigeration system control system for refrigeration system |
| 12/02/2009 | CN100564881C Capacity varying type rotary compressor and refrigeration system having the same |
| 11/26/2009 | WO2009141097A1 A vane with tilting tips, and a rotary displacement pump using this vane |
| 11/25/2009 | CN100562666C A system and a method for capacity control in a screw compressor |
| 11/24/2009 | US7621721 Vacuum pumping device with electronic control of the motor |
| 11/18/2009 | EP2119916A1 Rotary compressor |
| 11/18/2009 | EP2118491A1 Pump, particularly vane pump |
| 11/18/2009 | CN201347852Y Three-air compressor interlock actuating PLC control device |
| 11/18/2009 | CN101581305A Oil effluence reducing device of rotary compressor and control method thereof |
| 11/12/2009 | WO2009136571A1 Compressor |
| 11/11/2009 | EP2116726A1 Scroll compressor and air conditioner |
| 11/11/2009 | CN201344129Y Air inlet capacity control valve for air compressor |
| 11/11/2009 | CN201344125Y Roots vacuum pump |
| 11/11/2009 | CN101576084A Vacuum pump with abnormity early warning and emergency protection device |
| 11/11/2009 | CN100559028C Rapidly pumping out an enclosure while limiting energy consumption |
| 10/27/2009 | US7607899 Compressor with capacity control |
| 10/21/2009 | EP2110556A1 Compressor |
| 10/21/2009 | EP2109717A2 System and method of operation of multiple screw compressors with continuously variable speed to provide noise cancellation |
| 10/21/2009 | CN201330706Y Pressure control valve for air compressor |
| 10/21/2009 | CN201330702Y Cyclone compressor for preventing liquid impact |
| 10/21/2009 | CN101560979A Slip control device for rotary compressor |
| 10/21/2009 | CN100552225C Intrinsic safe explosion-proof compressor unit and its control method |
| 10/15/2009 | WO2009124845A2 Fluid-sealed or fluid-lubricated vacuum pump |
| 10/15/2009 | DE10300683B4 Hybridverdichter Hybrid compressor |
| 10/14/2009 | CN101555877A Flow-stabilizing regulating and controlling device of sea water pump |
| 10/14/2009 | CN100549426C Oil-injected compressor with a temperature switch |
| 10/14/2009 | CN100549425C Dual-shaft vacuum pump |
| 10/14/2009 | CN100549423C Screw compressor and operating method thereof |
| 10/08/2009 | WO2009121517A2 A rotary displacement pump with vanes, suitable for operating with scarce or absent lubrication |
| 10/07/2009 | CN201321969Y Compressor control valve |
| 10/07/2009 | CN101553663A A vacuum pump provided with a device for its deactivation |
| 10/07/2009 | CN100547245C Plural compressors |
| 10/07/2009 | CN100547244C Screw compressor |
| 10/06/2009 | US7597547 Variable capacity rotary compressor |