| 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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| 09/14/2006 | US20060204380 Dual volume-ratio scroll machine |
| 09/14/2006 | US20060204379 Dual volume-ratio scroll machine |
| 09/14/2006 | DE102005010690A1 Öleingespritzter Verdichter mit Temperaturschalter Oil-injected compressors with temperature switch |
| 09/13/2006 | EP1701039A1 Scroll fluid machinery |
| 09/13/2006 | EP1700067A2 Compressor protection and diagnostic system |
| 09/13/2006 | CN2816418Y Compressor |
| 09/13/2006 | CN1831338A Dual horizontal scroll machine |
| 09/13/2006 | CN1274960C 涡旋压缩机 Scroll Compressor |
| 09/12/2006 | US7104764 Variable capacity rotary compressor |
| 09/08/2006 | WO2006093821A1 System and method for controlling a variable speed compressor during stopping |
| 09/07/2006 | US20060198735 Vacuum pump and method of starting the same |
| 09/06/2006 | EP1698784A1 Scroll machine with single plate floating seal |
| 09/06/2006 | EP1698783A1 Fuel gas compression system |
| 09/06/2006 | CN1830131A Compressor protection and diagnostic system |
| 09/06/2006 | CN1828057A Capacity-changing unit of orbiting vane compressor |
| 09/06/2006 | CN1273743C 气体压缩机 Gas compressor |
| 09/05/2006 | US7102309 Apparatus for compensating for speed error of motor |
| 09/05/2006 | US7102264 Synchronous induction motor and manufacturing method and drive unit for the same, and hermetic electric compressor |
| 09/05/2006 | US7101161 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit |
| 09/05/2006 | US7101155 vacuum pump unit with an inlet connectable with an outlet for exhausting gas; pumping gas from the chamber to the pump inlet using the vacuum pump unit, then allowing gas to be evacuated from the pump outlet to the chamber to reduce pressure |
| 09/05/2006 | US7100386 Economizer/by-pass port inserts to control port size |
| 08/31/2006 | WO2006090979A1 Capacity varying type rotary compressor |
| 08/31/2006 | WO2006090978A1 Capacity varying type rotary compressor |
| 08/31/2006 | WO2006090977A1 Capacity varying type rotary compressor and refrigeration system having the same |
| 08/31/2006 | WO2005059366A9 Scroll fluid machinery |
| 08/30/2006 | CN2811613Y Vortex compressor with high-pressure unloading device for air conditioner |
| 08/30/2006 | CN2811612Y Vortex compressor with external unloading device for large displacement vehicle |
| 08/30/2006 | CN2811611Y Vortex compressor with built-in unloading device for large displacement vehicle |
| 08/30/2006 | CN2811610Y Vortex compressor with reverse rotation preventing device for air conditioner |
| 08/30/2006 | CN1824952A 可变容量压缩机及其启动方法 The variable capacity compressor and start method |
| 08/29/2006 | US7096681 System and method for variable speed operation of a screw compressor |
| 08/23/2006 | EP1692440A1 Compressor with unloader valve between economizer line and evaporator inlet |
| 08/23/2006 | CN2809273Y Multi-stage dry type vacuum pump |
| 08/23/2006 | CN1823228A System for controlling compressor of cooling system and method for controlling the same |
| 08/23/2006 | CN1821578A Compressor diagnostic system |
| 08/23/2006 | CN1821577A 压缩机诊断系统 Compressor diagnostic system |
| 08/23/2006 | CN1820795A Pressure controlling and releasing device for injection pump |
| 08/22/2006 | US7094038 Vacuum preventing device for scroll compressor |
| 08/17/2006 | US20060182635 Compressor protection and diagnostic system |
| 08/16/2006 | EP1552155B1 Compressor with capacity control |
| 08/16/2006 | CN1270092C Fluid pump |
| 08/16/2006 | CN1270091C Composite compressor |
| 08/10/2006 | WO2006083598A2 Method and apparatus for pumping liquids using directional growth and elimination of bubbles |
| 08/09/2006 | EP1687539A1 Compressor |
| 08/09/2006 | EP1001173B1 Screw compressor with adjustable full-load capacity |
| 08/09/2006 | CN1816697A Rotary-type enclosed compressor and refrigeration cycle apparatus |
| 08/09/2006 | CN1815028A Rotary compressor |
| 08/09/2006 | CN1815027A Step-type capacity varying apparatus of scroll compressor |
| 08/09/2006 | CN1268884C Turbine compressor |
| 08/02/2006 | CN1813132A Power transmission device, method for manufacturing the same and compressor |
| 08/02/2006 | CN1811187A Stage regulating method of gas amount in single-screw compressor with plunger solenoid valve |
| 08/02/2006 | CN1267646C Antivacuum device for vortex compressor |
| 08/01/2006 | US7083397 Scroll compressor with motor control for capacity modulation |
| 07/26/2006 | CN2799915Y Combined valve for big-displacement screw compressor |
| 07/26/2006 | CN1807889A Helical-lobe compressor for refrigerating plant |
| 07/26/2006 | CN1266431C Air conditioner, outdoor unit and refrigerating unit |
| 07/26/2006 | CN1266385C Scroll compressor with vapour injection |
| 07/19/2006 | EP1681468A2 Rotary compressor |
| 07/19/2006 | EP1240433B1 Dry compressing vacuum pump having a gas ballast device |
| 07/18/2006 | US7077635 Pump comprising a water supply |
| 07/18/2006 | US7077159 Processing apparatus having integrated pumping system |
| 07/18/2006 | CA2409250C Reverse rotation brake for a scroll compressor |
| 07/13/2006 | US20060153696 Screw pump |
| 07/12/2006 | EP1511936B1 Dual-shaft vacuum pump with a synchronous motor |
| 07/12/2006 | CN2795491Y On-line monitor of screw compressor unit |
| 07/12/2006 | CN2795487Y Load discharging valve for gas compressor |
| 07/12/2006 | CN1802510A 旋转式压缩机 Rotary compressor |
| 07/12/2006 | CN1800747A Low-temperature air conditioner heat pump system and method for decreasing temperature regulation fluctuation by employing the same |
| 07/12/2006 | CN1800647A Scroll compressor with vapor injection |
| 07/11/2006 | US7075403 Motor protector particularly useful with hermetic electromotive compressors |
| 07/11/2006 | US7074013 Dual volume-ratio scroll machine |
| 07/06/2006 | DE102004060417A1 Kompakter Schraubenkompressor zum mobilen Einsatz in einem Fahrzeug Compact screw compressor for mobile use in a vehicle |
| 07/06/2006 | DE10147610B4 Vorrichtung und Verfahren zur Steuerung eines Kolbenverdichters Apparatus and method for controlling a reciprocating compressor |
| 07/05/2006 | CN1796791A Variable capacity equipment in revolving compressor |
| 07/05/2006 | CN1796785A Displacement type compressor |
| 07/05/2006 | CN1262765C Vacuum pump |
| 07/04/2006 | US7070395 Variable capacity rotary compressor |
| 07/04/2006 | US7070393 Method for regulating a compressor installation with a dryer and compressor installation used therewith |
| 06/28/2006 | EP1673539A2 Evacuation apparatus |
| 06/28/2006 | CN2791305Y Short-message control device of air compressor |
| 06/28/2006 | CN1793660A Rotary compressor of multi-cylinder |
| 06/28/2006 | CN1793659A Linked regulatable load reducing valve |
| 06/28/2006 | CN1793658A Automatic regulating mechanism for displacement of rotary blade type compressor |
| 06/28/2006 | CN1793657A Method for autoregurating output displacement of vortex compressor for air conditioner of vehicle |
| 06/28/2006 | CN1261728C Mixed compressor apparatus |
| 06/27/2006 | US7066723 Scroll compressor having reversion preventive device |
| 06/27/2006 | US7066722 Discharge valve for compressor |
| 06/22/2006 | DE102004060596A1 Schraubenverdichter Screw compressor |
| 06/21/2006 | EP1672219A2 Rotary compressor |
| 06/21/2006 | CN1789723A Smart control valve for compressors |
| 06/21/2006 | CN1789722A Capacity-changing unit of orbiting vane compressor |
| 06/15/2006 | WO2006061317A1 Vacuum system comprising a rotary pump with an intermediate inlet |
| 06/14/2006 | EP1669606A2 Screw compressor |
| 06/14/2006 | EP1224395B1 Multistage compressor unit and method for regulating the same |
| 06/14/2006 | DE10147464B4 Motorbetriebener Kompressor The motor-driven compressor |
| 06/14/2006 | CN1788164A Rotary compressor |
| 06/13/2006 | US7059842 Variable capacity rotary compressor |
| 06/13/2006 | US7059837 Variable speed oil-injected screw compressors |
| 06/08/2006 | US20060120909 Rotary piston vacuum pump with washing installation |
| 06/08/2006 | US20060120889 Discharge valve for compressor |