| 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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| 03/31/2005 | US20050069441 Variable capacity rotary compressor |
| 03/31/2005 | US20050069422 Variable capacity rotary compressor |
| 03/31/2005 | US20050066673 Pressure equalization system |
| 03/31/2005 | DE19520757B4 Kältemittel-Spiralkompressor Refrigerant scroll compressor |
| 03/30/2005 | EP1519046A2 Apparatus for compensating for speed error of motor |
| 03/30/2005 | CN1602391A Method for controlling the oil recirculation in an oil-injected screw-type compressor and compressor using this method |
| 03/24/2005 | US20050063849 Variable capacity rotary compressor |
| 03/24/2005 | US20050063828 Compressor and overload protecting apparatus |
| 03/24/2005 | US20050062448 Apparatus for compensating for speed error of motor |
| 03/23/2005 | CN1599232A Apparatus for compensating for speed error of motor |
| 03/23/2005 | CN1598323A 可变容量旋转式压缩机 The variable capacity rotary compressor |
| 03/23/2005 | CN1598322A 可变容量旋转式压缩机 The variable capacity rotary compressor |
| 03/22/2005 | US6869272 Electric compressor and control method therefor |
| 03/17/2005 | US20050058562 Variable capacity rotary compressor |
| 03/16/2005 | EP1515047A2 Compressor capacity modulation |
| 03/15/2005 | US6866490 Water-injected screw compressor |
| 03/10/2005 | US20050053507 Scroll compressor |
| 03/10/2005 | US20050053506 Variable capacity rotary compressor |
| 03/10/2005 | US20050050908 Air conditioner and method of controlling the same |
| 03/09/2005 | EP1511938A1 Compressed gas production installation and operating method thereof |
| 03/09/2005 | EP1511937A1 Methods and apparatus for unloading a screw compressor |
| 03/09/2005 | EP1511936A1 Dual-shaft vacuum pump |
| 03/09/2005 | EP1287298A4 Control system of degree of superheat of air conditioner and control method thereof |
| 03/09/2005 | CN1590884A Air conditioner and method of controlling the same |
| 03/09/2005 | CN1192169C Apparatus for preventing vacuum compression of scroll compressor |
| 03/09/2005 | CN1192167C Overheat protector for whirl compressor |
| 03/08/2005 | US6863510 Vacuum preventing oil seal for scroll compressor |
| 03/08/2005 | US6863504 Fluid pump relief valve |
| 03/03/2005 | WO2003019010A8 Method for the protection of a volumetric liquid-injected compressor |
| 03/03/2005 | US20050047936 Vane pump, method for adjusting pump flow rate of vane pump and fuel vapor leakage check module having vane pump |
| 03/01/2005 | US6860730 Methods and apparatus for unloading a screw compressor |
| 03/01/2005 | US6860724 Rotary compressor |
| 02/24/2005 | US20050042125 Two-step self-modulating scroll compressor |
| 02/23/2005 | CN1585859A Tempering method for a screw-type vacuum pump |
| 02/17/2005 | US20050034767 Processing apparatus having integrated pumping system |
| 02/16/2005 | EP1507085A1 Scroll compressor |
| 02/16/2005 | CN1580565A Volume-variable rotary compressor |
| 02/16/2005 | CN1580564A 涡旋式压缩机 Scroll compressor |
| 02/10/2005 | US20050031463 Continuous variable suction system |
| 02/10/2005 | DE10333400A1 Schraubenverdichter Screw compressor |
| 02/09/2005 | EP1334264B1 Vane machine |
| 02/09/2005 | EP1293674B1 Scroll compressor |
| 02/09/2005 | CN1576605A Capacity modulated scroll compressor |
| 02/09/2005 | CN1576604A Variable capacity scroll compressor |
| 02/09/2005 | CN1576603A Variable capacity scroll compressor |
| 02/09/2005 | CN1576602A Variable capacity scroll compressor |
| 02/09/2005 | CN1576601A Variable capacity scroll compressor |
| 02/09/2005 | CN1576600A 可变容量旋转式压缩机 The variable capacity rotary compressor |
| 02/09/2005 | CN1576599A 可变容量旋转式压缩机 The variable capacity rotary compressor |
| 02/09/2005 | CN1576598A 可变容量旋转压缩机 Variable capacity rotary compressor |
| 02/09/2005 | CN1576593A Variable capacity rotary compressors |
| 02/09/2005 | CN1576592A Variable capacity rotary compressors |
| 02/09/2005 | CN1576591A 可变容量旋转压缩机 Variable capacity rotary compressor |
| 02/09/2005 | CN1576590A 可变容量旋转压缩机 Variable capacity rotary compressor |
| 02/09/2005 | CN1576589A 可变容量旋转式压缩机 The variable capacity rotary compressor |
| 02/09/2005 | CN1576588A 螺杆压缩机 Screw compressor |
| 02/08/2005 | CA2381591C Prevention of oil backflow from a screw compressor in a refrigeration chiller |
| 02/02/2005 | CN1573113A 可变容量的旋转压缩机 The variable capacity rotary compressor |
| 02/01/2005 | US6848889 Oil utilized as motor protector trip for scroll compressor |
| 01/27/2005 | US20050019193 Variable capacity rotary compressor |
| 01/27/2005 | US20050019192 Variable capacity rotary compressor |
| 01/27/2005 | US20050019191 Variable capacity rotary compressor |
| 01/27/2005 | US20050019190 Variable capacity rotary compressor |
| 01/27/2005 | US20050019189 Variable capacity rotary compressor |
| 01/27/2005 | US20050019179 Variable capacity scroll compressor |
| 01/27/2005 | US20050019178 Variable capacity scroll compressor |
| 01/27/2005 | US20050019177 Variable capacity scroll compressor |
| 01/27/2005 | US20050019176 Variable capacity scroll compressor |
| 01/27/2005 | US20050019169 Tempering method for a screw-type vacuum pump |
| 01/26/2005 | EP1500821A2 Compressor with control and protection system |
| 01/20/2005 | WO2005006534A1 Motor drive for compressor of air conditioner |
| 01/20/2005 | US20050013718 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit |
| 01/20/2005 | US20050013702 Screw compressor |
| 01/19/2005 | EP1498611A1 Screw compressor |
| 01/19/2005 | EP1498610A2 Capacity modulated scroll compressor |
| 01/19/2005 | CN1185416C Turbine machine |
| 01/13/2005 | US20050008520 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit |
| 01/13/2005 | US20050008518 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit |
| 01/13/2005 | US20050008442 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit |
| 01/12/2005 | EP1496260A2 Hermetic compressors |
| 01/12/2005 | EP1496259A2 Hermetic compressors |
| 01/12/2005 | EP1496258A2 Hermetic compressors |
| 01/06/2005 | US20050002815 Variable capacity rotary compressor |
| 01/06/2005 | US20050002814 Variable capacity rotary compressor |
| 01/06/2005 | US20050002813 Variable capacity rotary compressors |
| 01/05/2005 | EP1493981A2 Compressor diagnostic system |
| 01/05/2005 | EP1493980A2 Compressor diagnostic system |
| 01/05/2005 | DE10326466A1 A method for improving the performance of a speed controlled screw compressor has a regulating slide joining the pressure and suction sides at start up |
| 01/05/2005 | CN1183330C Vortex type compressor |
| 01/05/2005 | CN1183327C Vortex machine |
| 12/30/2004 | US20040265140 Two-step self-modulating scroll compressor |
| 12/30/2004 | US20040265135 Vacuum pumping device with electronic control of the motor |
| 12/29/2004 | WO2004113731A1 Rotary-type enclosed compressor and refrigeration cycle apparatus |
| 12/23/2004 | US20040260409 Vacuum pump |
| 12/22/2004 | EP1489368A2 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 12/22/2004 | EP1489307A1 Scroll type fluid machine |
| 12/22/2004 | EP1488107A1 Eccentric pump and method for operation of said pump |
| 12/21/2004 | US6832488 Refrigerating machine |
| 12/16/2004 | WO2004109115A1 Rotary compressor |
| 12/16/2004 | WO2004109114A1 Rotary compressor |