| 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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| 08/17/2005 | CN1656318A Dual-shaft vacuum pump |
| 08/17/2005 | CN1215263C Protection system and method for compressor |
| 08/17/2005 | CN1215261C Vortex compressor |
| 08/17/2005 | CN1215260C Natural gas scroll compressor |
| 08/16/2005 | US6929457 Gas compressor |
| 08/10/2005 | EP1562011A2 Digital controller for scroll compressor condensing unit |
| 08/10/2005 | CN1214187C Swirl compressor |
| 08/10/2005 | CN1213789C Method for regulating compressor installation with a dryer and compressor installation used therewith |
| 08/09/2005 | US6925824 Apparatus for driving a compressor and a refrigerating air conditioner |
| 08/03/2005 | EP1228292B1 Screw rotor machine having means for axially biasing at least one of the rotors |
| 08/03/2005 | CN1648458A 压缩机机组 Compressor unit |
| 07/28/2005 | US20050163632 Eccentric pump and method for operation of said pump |
| 07/28/2005 | US20050163623 Air supply apparatus for stable air supply |
| 07/28/2005 | DE102004058399A1 Fluidmaschine Fluid machine |
| 07/27/2005 | EP1556614A1 Improvements in dry pumps |
| 07/27/2005 | CN1646812A Pressure equalization system and method |
| 07/21/2005 | WO2005065355A2 Compressor protection and diagnostic system |
| 07/20/2005 | CN1643258A 机动泵 Motor pumps |
| 07/14/2005 | WO2005064166A1 Scroll compressor |
| 07/14/2005 | WO2005064165A1 Scroll compressor |
| 07/13/2005 | EP1553300A1 Variable inner volume ratio-type inverter screw compressor |
| 07/13/2005 | EP1552156A1 Speed control for compressors |
| 07/13/2005 | EP1552155A1 Compressor with capacity control |
| 07/13/2005 | EP1552153A1 Screw pump |
| 07/13/2005 | EP1552152A1 Rotary piston vacuum pump with washing installation |
| 07/13/2005 | CN2709679Y Vortex compressor |
| 07/13/2005 | CN1210500C Oilless lubricating screw type compressor |
| 07/07/2005 | WO2005061901A1 Freezing cycle device |
| 07/07/2005 | US20050147499 Device for prevention of backward operation of scroll compressors |
| 07/05/2005 | US6913451 Vacuum pump with fail-safe vanes |
| 07/05/2005 | US6913448 Load-regulating device for scroll type compressors |
| 06/30/2005 | WO2005059366A1 Scroll fluid machinery |
| 06/30/2005 | US20050142017 Scroll compressor with backflow-proof mechanism |
| 06/29/2005 | CN1632317A Compressor with control and protection system |
| 06/28/2005 | US6910872 Rotary compressor |
| 06/23/2005 | US20050135940 Overheating protection apparatus of scroll compressor |
| 06/23/2005 | US20050135939 Scroll compressor having overheat preventing unit |
| 06/23/2005 | DE10047940B4 Verfahren zur Regelung des Betriebs einer ölfreien Schraubenkompressionsvorrichtung Method for controlling the operation of an oil-free screw compression apparatus |
| 06/22/2005 | EP1544469A1 Eccentric coupling device in radial compliance scroll compressor. |
| 06/22/2005 | CN1629494A Scroll compressor having overheat preventing unit |
| 06/22/2005 | CN1629493A Overheating protection apparatus of scroll compressor |
| 06/22/2005 | CN1629492A 可变容量回转式压缩机 The variable capacity rotary compressor |
| 06/16/2005 | US20050129551 Variable capacity rotary compressor |
| 06/16/2005 | US20050126194 Refrigerant cycle apparatus |
| 06/15/2005 | EP1540185A1 Vacuum pump and method of starting the same |
| 06/15/2005 | EP1540181A1 Seal-leak detector arrangement for compressors and other equipment |
| 06/09/2005 | US20050123415 Fluid machine |
| 06/09/2005 | US20050123407 System and method for noise attenuation of screw compressors |
| 06/02/2005 | US20050118035 Multistage dry vacuum pump |
| 06/02/2005 | DE102004050924A1 Steuerung für einen regenerativ betreibbaren Kompressormotor für ein Brennstoffzellenantriebssystem Control for a renewable operated compressor motor for a fuel cell drive system |
| 06/01/2005 | EP1536140A1 Multistage dry vacuum pump |
| 06/01/2005 | CN1621693A 可变容量回转式压缩机 The variable capacity rotary compressor |
| 06/01/2005 | CN1621692A 可变容量回转式压缩机 The variable capacity rotary compressor |
| 06/01/2005 | CN1621691A 可变容量回转式压缩机 The variable capacity rotary compressor |
| 05/31/2005 | US6898948 Screw compressor |
| 05/26/2005 | WO2005047783A1 Compressor with unloader valve between economizer line and evaporator inlet |
| 05/26/2005 | US20050112010 Variable capacity rotary compressor |
| 05/26/2005 | US20050112009 Variable capacity rotary compressor |
| 05/26/2005 | US20050112008 Variable capacity rotary compressor |
| 05/26/2005 | US20050110446 System and method for starting pump |
| 05/24/2005 | US6896499 Scroll compressor with flow restriction and back pressure chamber tap |
| 05/24/2005 | US6896498 Scroll compressor with hot oil temperature responsive relief of back pressure chamber |
| 05/19/2005 | DE102004050415A1 Gaskompressionseinrichtung, die einen Schmiermittelaustritt verhindern kann Gas compression device that can prevent lubricant leakage |
| 05/18/2005 | CN1616827A 空气压缩机 Air compressor |
| 05/17/2005 | US6893235 Scroll compressor |
| 05/17/2005 | US6893229 Vacuum preventing device of scroll compressor |
| 05/17/2005 | US6893227 Device for prevention of backward operation of scroll compressors |
| 05/17/2005 | US6892548 Rotary compressor and refrigerant cycle system having the same |
| 05/17/2005 | US6892454 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit |
| 05/12/2005 | US20050100449 Compressor diagnostic and recording system |
| 05/12/2005 | US20050097908 Compressor with unloader valve between economizer line and evaporator inlet |
| 05/06/2005 | WO2005040614A1 Multistage vacuum pump with improved efficiency |
| 04/28/2005 | WO2005038257A1 Compressor |
| 04/28/2005 | WO2005038255A2 Evacuation apparatus |
| 04/28/2005 | WO2004079196A3 Hydraulically-operated control system for a screw compressor |
| 04/28/2005 | US20050089432 Method for controlling the oil recirculation in an oil-injected screw-type compressor and compressor using this method |
| 04/28/2005 | US20050086960 Refrigerating machine |
| 04/28/2005 | US20050086959 Method and apparatus for variable frequency controlled compressor and fan |
| 04/26/2005 | US6884046 Scroll compressor |
| 04/26/2005 | US6884042 Two-step self-modulating scroll compressor |
| 04/26/2005 | US6883341 Compressor with unloader valve between economizer line and evaporator inlet |
| 04/21/2005 | WO2005035989A1 Improved water-injected screw-type compressor |
| 04/21/2005 | US20050084724 Regenerative compressor motor control for a fuel cell power system |
| 04/21/2005 | US20050084404 Gas compression apparatus capable of preventing lubricant leakage |
| 04/20/2005 | EP1523624A1 Discharge porting design for screw compressor |
| 04/20/2005 | CN1608172A Compressor and overload protecting apparatus |
| 04/20/2005 | CN1607478A An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 04/20/2005 | CN1607332A 变容旋转压缩机 Variable capacity rotary compressor |
| 04/19/2005 | US6881046 Scroll type fluid machine |
| 04/19/2005 | US6881040 Multi-stage screw compressor unit accommodating high suction pressure and pressure fluctuations and method of operation thereof |
| 04/14/2005 | US20050079071 Variable capacity rotary compressor |
| 04/06/2005 | CN1603628A 可变容量旋转压缩机 Variable capacity rotary compressor |
| 04/06/2005 | CN1603627A 变容旋转压缩机 Variable capacity rotary compressor |
| 04/06/2005 | CN1603623A 变容旋转压缩机 Variable capacity rotary compressor |
| 04/05/2005 | US6874996 Compressor having independently driven members |
| 04/05/2005 | US6874989 Vacuum pump |
| 04/05/2005 | US6874486 Supercharger with multiple backflow ports for noise control |
| 04/05/2005 | US6874328 Hybrid compressor device |
| 03/31/2005 | WO2005028871A1 Cleaning method of a rotary piston vacuum pump |
| 03/31/2005 | US20050069442 Variable capacity rotary compressor |