| 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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| 06/07/2006 | CN1782417A Overheat preventing device for turine compressor |
| 06/07/2006 | CN1782402A Pressure regulator of scroll compressor |
| 06/07/2006 | CN1782401A Valve assembly of scroll compressor |
| 06/07/2006 | CN1782400A Vulume regulator of scroll compressor |
| 05/31/2006 | CN2784623Y Pressure release protecting structure of rotary compressor |
| 05/31/2006 | CN1780987A Method for controlling a compressed air installation comprising several compressors, control box applied thereby and compressed air installation applying this method |
| 05/31/2006 | CN1779264A Rotary compressor and cooling circulation therewith |
| 05/30/2006 | US7052255 Apparatus for changing capacity of scroll compressor with movable seal member |
| 05/30/2006 | US7051759 Processing apparatus having integrated pumping system |
| 05/24/2006 | EP1659291A2 Compressor diagnostic system |
| 05/24/2006 | DE102005000896A1 Scroll compressor`s capacity varying apparatus for e.g. refrigerator, has sealing varying mechanism changing sealing region of orbiting and fixed scroll wraps based on change in pressure applied to back of orbiting scroll |
| 05/24/2006 | CN1778032A Motor controlling device, compressor, air conditioner and refrigerator |
| 05/24/2006 | CN1776231A Variable capacity rotary compressor |
| 05/23/2006 | US7048511 Device for prevention of backward operation of scroll compressors |
| 05/18/2006 | WO2006051260A1 Vacuum pumping system |
| 05/17/2006 | CN1773119A Discharge valve system of scroll compressor |
| 05/17/2006 | CN1773118A Scroll compressor |
| 05/17/2006 | CN1773115A Sealed type electric compressor |
| 05/16/2006 | US7044717 Lubrication of a hermetic carbon dioxide compressor |
| 05/11/2006 | US20060099083 Dry pumps |
| 05/11/2006 | DE19704234B4 Verfahren und Vorrichtung zur Regelung des Saugvermögens von Vakuumpumpen Method and apparatus for regulating the pumping speed of vacuum pumps |
| 05/11/2006 | DE102005000897A1 Capacity varying apparatus for scroll compressor, has elastic opening and closing device for opening and closing bypass passage by pressure of compression pocket and pressure and elasticity of suction side when passage is opened and closed |
| 05/10/2006 | EP1655493A2 Scroll machine with continuous capacity modulation |
| 05/10/2006 | EP1655492A1 Rotary-type enclosed compressor and refrigeration cycle apparatus |
| 05/10/2006 | CN1769710A Apparatus for changing capacity of multi-stage rotary compressor |
| 05/09/2006 | US7040107 Air conditioner and method of controlling the same |
| 05/04/2006 | WO2006045190A1 Variable capacity vane pump with force reducing chamber on displacement ring |
| 05/04/2006 | WO2006045188A1 Variable capacity vane pump with out-of-plane control |
| 05/04/2006 | US20060093494 Rotary hermetic compressor and refrigeration cycle system |
| 05/03/2006 | EP1653085A1 Multi-stage rotary compressor with variable capacity |
| 05/03/2006 | CN1766468A Refrigerating machine |
| 05/03/2006 | CN1766339A Overheating prevention apparatus of vortex compressor |
| 04/27/2006 | WO2006044787A2 Pressure equalization system |
| 04/27/2006 | WO2005065355A3 Compressor protection and diagnostic system |
| 04/26/2006 | CN2775353Y Air pressure automatic regulator for air compressor |
| 04/25/2006 | US7033144 Cooling fan for a screw compressor drive motor |
| 04/20/2006 | US20060080978 Compressor diagnostic system |
| 04/20/2006 | DE102004060000B3 Air conditioning system for motor vehicles has externally governed compressor with adjustable swashplate for variable adjusting of evaporator temperature |
| 04/19/2006 | CN1761817A Rotary closed type compressor and refrigerating cycle apparatus |
| 04/19/2006 | CN1252389C Pump comprising water supply |
| 04/18/2006 | US7029251 Backpressure mechanism of scroll type compressor |
| 04/18/2006 | US7028495 Refrigerant cycle apparatus |
| 04/12/2006 | EP1472460B1 Method for controlling the oil recirculation in an oil-injected screw-type compressor and compressor using this method |
| 04/12/2006 | CN1250877C Enclosed compressor and freezer using such compressor |
| 04/12/2006 | CN1250875C 空气压缩机 Air Compressor |
| 04/12/2006 | CN1250874C Rotary air compressor |
| 04/05/2006 | CN2769554Y Folding structure for bundling protector sleeve |
| 04/05/2006 | CN1755109A Initiate control method of volume-variable compressor |
| 04/05/2006 | CN1249354C Rotary compressor |
| 04/05/2006 | CN1249353C Variable capacity rotary compressor |
| 04/05/2006 | CN1249352C Conveyance amount regulator for rotary compressor |
| 04/05/2006 | CN1249350C Vacuum-protective device for vortex compressor |
| 03/29/2006 | CN1247899C Vortex type compressor |
| 03/28/2006 | US7018180 Vacuum preventing device of scroll compressor |
| 03/22/2006 | EP1407147B1 Screw compressor |
| 03/22/2006 | CN1246590C Vacuum proof device for vortex type compressor |
| 03/21/2006 | US7014427 Capacity controller of capacity variable compressor |
| 03/21/2006 | CA2298689C Screw compressor with adjustable full-load capacity |
| 03/16/2006 | US20060057010 Scroll compressor |
| 03/15/2006 | CN1746506A Double volume rotary compressor |
| 03/15/2006 | CN1245600C Defrosting device of refrigerant loop and rotary compressor for refrigerant loop |
| 03/15/2006 | CN1245571C Hybrid compressor system |
| 03/14/2006 | US7011183 Suction oil injection for rotary compressor |
| 03/09/2006 | US20060051226 Scroll compressor |
| 03/08/2006 | EP1387961B1 Multi-stage screw compressor |
| 03/08/2006 | CN1745251A Screw compressor witrh axially sliding capacity control |
| 03/07/2006 | US7008199 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit |
| 03/07/2006 | US7007505 Refrigerating device |
| 03/02/2006 | US20060045761 Oil return tube aligned over motor protector in scroll compressor |
| 03/01/2006 | EP1629199A1 Method for controlling a compressed air installation comprising several compressors, control box applied thereby and compressed air installation applying this method |
| 02/23/2006 | US20060039805 Variable inner volume ratio-type inverter screw compressor |
| 02/23/2006 | CA2573233A1 System and method to reduce acoustic noise in screw compressors |
| 02/22/2006 | CN1737374A Defroster of refrigerant circuit and rotary compressor |
| 02/16/2006 | US20060034720 Variable capacity rotary compressor |
| 02/15/2006 | CN1734095A 可变容量旋转压缩机 The variable capacity rotary compressor |
| 02/14/2006 | US6999840 Vacuum pump |
| 02/08/2006 | CN1240978C Start-up method and apparatus in refrigeration chillers |
| 02/01/2006 | EP1621772A2 Capacity modulated scroll machine |
| 02/01/2006 | EP1621771A2 Capacity modulated scroll machine |
| 01/26/2006 | US20060018769 Compressor with capacity control |
| 01/26/2006 | US20060016200 Compressor diagnostic method |
| 01/25/2006 | EP1619389A2 Scroll compressor capacity control |
| 01/25/2006 | CN1724873A Variable capacity rotation compressor |
| 01/25/2006 | CN1724872A Variable capacity rotation compressor |
| 01/25/2006 | CN1238674C Control and cooling system of compressor |
| 01/18/2006 | EP1617082A2 Multicylinder rotary compressor and compressing system and refrigerating unit provided with same |
| 01/18/2006 | EP1617081A2 Sealed type electric compressor |
| 01/18/2006 | EP1025403B1 An adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 01/18/2006 | CN2752489Y Non-stage frequency changeable screw type refrigerant compressor and control device |
| 01/18/2006 | CN1721701A Sealed type electric compressor |
| 01/18/2006 | CN1237279C Electric compressor and its control method |
| 01/17/2006 | US6987373 System and method for starting pump |
| 01/12/2006 | WO2005108882A3 Compressor diagnostic and protection system |
| 01/11/2006 | CN2751163Y Refrigerating compressor |
| 01/11/2006 | CN1720397A Screw compressor |
| 01/11/2006 | CN1236255C Refrigerant circulation device |
| 01/10/2006 | US6984465 Seal-leak detector arrangement for compressors and other equipment |
| 01/10/2006 | US6984114 Two-step self-modulating scroll compressor |
| 01/05/2006 | US20060002809 Rotary closed type compressor and refrigerating cycle apparatus |
| 01/04/2006 | CN1715812A Digital scroll condensing unit controller |