| Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928) |
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| 11/07/2013 | US20130294933 Compressor diagnostic and protection system and method |
| 11/06/2013 | CN102272541B Truck trailer refrigeration system |
| 10/31/2013 | WO2012113047A8 A system and method of remotely connecting and disconnecting the auxiliary power supply of a frequency inverter |
| 10/30/2013 | CN203257686U Screw compressor energy and internal volume ratio slide valve precise positioning indication apparatus |
| 10/30/2013 | CN203257685U Mechanical high-precision screw compressor energy and internal volume ratio slide valve adjustment mechanism |
| 10/30/2013 | CN203257684U Combination type screw compressor energy and internal volume ratio slide valve adjustment mechanism |
| 10/30/2013 | CN203257675U Integrated electric scroll compressor |
| 10/30/2013 | CN103375408A Temperature control device and method for compressor, compressor components and refrigerating system |
| 10/30/2013 | CN103375406A 压缩气体供给单元 Compressed gas supply means |
| 10/30/2013 | CN101813087B Vortex fluid machinery |
| 10/30/2013 | CN101328889B Scroll machine with continuous capacity modulation |
| 10/24/2013 | WO2013155954A1 Temperature control equipment for compressor, compressor component, and refrigeration system |
| 10/23/2013 | EP2653649A2 Scroll compressor |
| 10/23/2013 | CN203248366U Automatic drainage device of water ring type vacuum set |
| 10/23/2013 | CN103362803A 涡旋压缩机 Scroll Compressor |
| 10/16/2013 | CN103352850A Vacuum compression integrated machine for electric automobile |
| 10/15/2013 | US8556922 Motor assembly for a powered surgical instrument |
| 10/10/2013 | WO2013151040A1 Method and device for controlling scroll compressor |
| 10/09/2013 | EP2646655A2 Vacuum pump for motor vehicles |
| 10/09/2013 | CN203230585U Low-voltage screw rod air compressor PLC (programmable logic controller) control integrated system |
| 10/09/2013 | CN103343744A Rotary piston type air compressor capable of regulating compression ratio automatically |
| 10/03/2013 | WO2013146674A1 Two-stage compression device |
| 10/03/2013 | WO2012080610A3 Scroll refrigeration compressor |
| 10/03/2013 | WO2011022455A3 Screw compressor drive control |
| 10/02/2013 | CN203223382U Singlechip-based air compressor controller |
| 10/01/2013 | US8545199 Regulatable vane-cell pump with a sealing web curving in an arc |
| 09/26/2013 | WO2013092132A3 Method for the start-up control of an electric vacuum pump |
| 09/26/2013 | WO2012152886A3 Actuating module for an electric vacuum pump |
| 09/26/2013 | WO2012136364A3 Regulator, in particular intake regulator for compressors |
| 09/26/2013 | DE102012102405A1 Kältemittelverdichter Refrigerant compressor |
| 09/25/2013 | CN103321907A 旋转式压缩机 Rotary compressor |
| 09/25/2013 | CN101341336B Apparatus for detecting a flammable atmosphere within a compressor, in particular vacuum pump |
| 09/19/2013 | US20130240043 Variable Speed Compressor Protection System And Method |
| 09/19/2013 | DE112011104431T5 Scroll-Kälteverdichter Scroll refrigeration compressor |
| 09/19/2013 | DE112011104428T5 Scroll-Kälteverdichter Scroll refrigeration compressor |
| 09/19/2013 | DE112011104421T5 Scroll-Kälteverdichter Scroll refrigeration compressor |
| 09/18/2013 | EP2638294A1 Compressor and enclosure assembly for electrical components |
| 09/18/2013 | CN203201797U Screw-type compressor |
| 09/18/2013 | CN103306981A Double-screw air compressor |
| 09/12/2013 | DE112011104373T5 Scroll-Kälteverdichter Scroll refrigeration compressor |
| 09/12/2013 | DE112011104357T5 Thermodynamisches System, das mir einer Vielzahl von Verdichtern ausgestattet ist Thermodynamic system, which is equipped me a plurality of compressors, |
| 09/11/2013 | CN103291620A Multi-air-cylinder rotary compressor as well as control method thereof |
| 09/06/2013 | WO2013126969A1 Compressor device, as well as the use of such an assembly |
| 09/04/2013 | EP2634431A1 Vane pump |
| 09/04/2013 | EP2633195A2 Rotary compressor with an installed circulation control unit |
| 09/04/2013 | CN203175863U Oil cut-off protection device for air compressor |
| 09/04/2013 | CN203175862U Dynamic electric test system of vortex compressor |
| 09/04/2013 | CN203175856U Energy-saving and environment-friendly variable frequency oil-free water-lubricated screw type air compressor |
| 09/04/2013 | CN103282667A Rotary compressor with an installed circulation control unit |
| 09/04/2013 | CN103277310A Energy-efficient spiral slice type vacuum pump unit |
| 08/29/2013 | WO2013045127A3 Vane pump |
| 08/28/2013 | CN103270306A Variable capacity screw compressor and method |
| 08/28/2013 | CN102251965B Compressor capable of performing one-stage and double-stage switching, and control method thereof |
| 08/27/2013 | US8517012 Multiple stage blowers and volutes therefor |
| 08/22/2013 | US20130216414 Volume ratio control system and method |
| 08/21/2013 | CN203146334U Flame-proof type oil gas recycling vacuum pump |
| 08/21/2013 | CN103261690A Thermodynamic system provided with a plurality of compressors |
| 08/21/2013 | CN103256223A Variable volume compressor and control method thereof, air conditioner having variable volume compressor, and heat pump water heater having variable volume compressor |
| 08/15/2013 | WO2013021203A3 Scroll pump |
| 08/14/2013 | EP2626562A2 Pump |
| 08/14/2013 | CN203130508U Control cabinet of screw air compressor |
| 08/14/2013 | CN1821577B 压缩机诊断系统 Compressor diagnostic system |
| 08/14/2013 | CN103244429A Control circuit of turbocompressor oil system |
| 08/14/2013 | CN103244419A Automobile vacuum pump capable of giving alarm |
| 08/08/2013 | WO2013113073A1 Pump and/or compressor arrangement including mating, oscillatable vane members for the simultaneous admission and discharge of fluid |
| 08/08/2013 | WO2012080612A3 Scroll refrigeration compressor |
| 08/08/2013 | WO2012080609A3 Scroll refrigeration compressor |
| 08/08/2013 | WO2012050538A3 Rotary compressor with an installed circulation control unit |
| 08/07/2013 | EP2623790A1 Positive displacement compressor |
| 08/07/2013 | EP2623789A1 Screw compressor |
| 08/07/2013 | CN203114633U Device for preventing reverse rotation of screw compressor |
| 08/07/2013 | CN203114622U 压缩机 Compressor |
| 08/07/2013 | CN103233893A Capacity adjusting control method of multi-nose screw compressor |
| 07/31/2013 | CN203098285U Controller system structure of air compressor |
| 07/31/2013 | CN203098281U Vortex compressor |
| 07/25/2013 | WO2013109022A1 Auxiliary control device for compressor and auxiliary control method for compressor thereof |
| 07/25/2013 | US20130189143 Differential pressure regulating valve and motor-driven compressor having differential pressure regulating valve |
| 07/24/2013 | EP2616686A1 Volume ratio control system and method |
| 07/24/2013 | CN203081765U Frequency conversion controlling system for controlling air output of screw type air compressor |
| 07/24/2013 | CN203081764U Air-conditioning driving controller for vehicles |
| 07/17/2013 | CN203067284U Compressor equipment |
| 07/17/2013 | CN101539146B Capacity variable rotary compressor and air-conditioning circulatory system |
| 07/10/2013 | CN203051128U Variable-frequency double-screw two-stage supercharging air compressor |
| 07/10/2013 | CN103201516A Compressor and enclosure assembly for electrical components |
| 07/10/2013 | CN102331123B Safety control method for lubricating oil of multi-unit air conditioner of screw compressor |
| 07/10/2013 | CN101896725B Screw compressor |
| 07/03/2013 | CN203035556U Screw type air compressor system and screw type air compressor thereof |
| 07/03/2013 | CN103185007A Cylinder for rotary compressor, rotary compressor and air conditioner |
| 07/02/2013 | US8475140 Dual volume-ratio scroll machine |
| 07/02/2013 | US8475136 Compressor protection and diagnostic system |
| 07/02/2013 | US8474278 Compressor diagnostic and protection system and method |
| 06/27/2013 | WO2013092132A2 Method for the start-up control of an electric vacuum pump |
| 06/27/2013 | WO2012113047A3 A system and method of remotely connecting and disconnecting the auxiliary power supply of a frequency inverter |
| 06/27/2013 | US20130164147 Vacuum pumping |
| 06/26/2013 | CN203023056U Air compressor |
| 06/26/2013 | CN103180677A Two-stage pressure boosting type refrigeration cycle device |
| 06/26/2013 | CN102331124B Control method for preventing multi-unit air conditioner screw compressor from liquid impact |
| 06/25/2013 | DE202012002883U1 Vakuum-Drehschieberpumpe Rotary vacuum pump |
| 06/25/2013 | DE202012002881U1 Vakuum-Drehschieberpumpe Rotary vacuum pump |
| 06/20/2013 | WO2013090600A1 Slide valve for screw compressor |