Patents
Sitemap › F04 - Positive-displacement machines for liquids; Pumps for liquids or elastic fluids › F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; Rotary-piston, or oscillating-piston, positive-displacement pumps › F04C 23 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
Patents for F04C 23 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids (6,201)
12/2005
12/15/2005US20050274569 Compressor sound attenuation enclosure
12/14/2005EP1605167A1 Rotary sealed compressor and refrigeration cycle apparatus
12/14/2005EP1478854B1 Motor pump
12/14/2005CN1707104A Vortex machine with continuous power regulation
12/14/2005CN1707102A Light gas vacuum pumping system
12/14/2005CN1231680C Enclosed rotary compressor and freezing ,air conditioning unit
12/14/2005CN1231677C Electric compressor and refrigerating device therewith
12/13/2005US6974314 Rotary compressor, method for manufacturing the same, and defroster for refrigerant circuit
12/13/2005US6974313 Multiple induction energy-driven engine
12/07/2005EP1603214A1 Magnetizing jig, magnetizing method using the jig, and method of assembling electric compressor by using the jig and the magnetizing method
12/07/2005CN1705825A 压缩机 Compressor
12/06/2005US6971849 improved workabiity/reliability of the sealed container of the compressor
12/01/2005WO2005113985A1 Rotary compressor
12/01/2005US20050262858 Heat cycle
11/2005
11/30/2005EP1600638A1 Two-stage fluid ring pump
11/30/2005CN1229570C Multiple induction encrgy-driven engine
11/29/2005US6968820 Continuous variable suction system
11/24/2005WO2005111427A1 Rotary compressor
11/23/2005EP1598557A1 Compressor lubrication control
11/23/2005CN1699754A Compressor units
11/23/2005CN1699753A Scroll compressor
11/23/2005CN1228586C Whirl compressor
11/23/2005CN1228585C 压缩机 Compressor
11/23/2005CN1228584C Refrigerant compressor
11/23/2005CN1228551C Noise and vibration reducing structure for vortex compressor
11/23/2005CN1228535C Compressor with sound-proof casing
11/22/2005US6966759 Compressor diagnostic and recording system
11/22/2005US6966194 Refrigerating machine
11/17/2005WO2005108795A1 Rotary fluid machine
11/17/2005WO2005108794A1 Rotary fluid machine
11/17/2005WO2005108793A1 Rotary compressor
11/17/2005US20050254981 Light gas vacuum pumping system
11/17/2005US20050253474 Synchronous induction motor and manufacturing method and drive unit for the same, and hermetic electric compressor
11/16/2005EP1596067A1 Compressor sound attenuation
11/16/2005EP1596066A1 Light gas vacuum pumping system
11/16/2005CN1698249A Magnetizing jig, magnetizing method using the jig, and method of assembling electric compressor by using the jig and the magnetizing method
11/16/2005CN1697928A Hermetic compressor
11/16/2005CN1697927A Enclosed compressor
11/16/2005CN1227496C Compressor with control and protection system
11/16/2005CN1227490C Vortex compressor comprising guide rack and affiliated frame
11/16/2005CN1227459C 多级压缩机 Multistage compressor
11/15/2005US6964560 Vacuum pump
11/15/2005US6964558 Compressor utilizing low volt power tapped from high volt power
11/03/2005WO2005103496A1 Rotating fluid machine
11/03/2005WO2005038255A3 Evacuation apparatus
11/03/2005DE10240978B4 Niederdruck-Gaskreis für einen Kompressor Low-pressure gas circuit for a compressor
11/02/2005CN1692228A Rotary compressor
11/02/2005CN1690426A Scroll compressor and refrigerating system using ammonia group refrigerant
11/02/2005CN1690424A Permanent low cost radio frequency compressor identification
11/01/2005US6960070 Compressor
10/2005
10/27/2005US20050238502 Multistage vacuum pump and a pumping installation including such a pump
10/27/2005US20050236437 Screw pump and method of operating the same
10/26/2005EP1589227A1 Multi-stage vacuum pump and pumping system having such a pump
10/26/2005CN1688817A Helical compressor for refrigerating medium
10/20/2005US20050232800 Scroll compressor for refrigerant
10/20/2005US20050232791 Dual-shaft vacuum pump
10/20/2005US20050232783 Vacuum pump and method for generating sub-pressure
10/20/2005US20050232781 Permanent low cost radio frequency compressor identification
10/19/2005CN1685158A Vane rotary type air pump
10/19/2005CN1683793A 涡旋式压缩机 Scroll compressor
10/18/2005CA2359441C In-line gas compression system
10/13/2005US20050226755 Scroll compressor
10/13/2005DE10393034T5 Verhinderung von Ölverschleppung bei Heliumgasverdichtern Prevention of oil carryover in helium gas compressors
10/13/2005DE10307803B4 Verdichteranlage Compressor system
10/13/2005DE102004010061B3 Side channel sliding vane rotary pump comprises a central housing, a rotary slide valve running space arranged eccentrically to a drive shaft, and a rotary slide valve piston arranged on the drive shaft
10/06/2005US20050220655 Rolling piston and gas leakage preventing apparatus for rotary compressor having the same
10/06/2005US20050220654 Apparatus for preventing overheating of scroll compressor
10/06/2005US20050220652 Compressor
10/06/2005US20050217732 Apparatus for controlling the pressure in a process chamber and method of operating same
10/05/2005CN1676938A Rotary dual-cylinder compressor using exhaust middle partition board
10/05/2005CN1676937A Apparatus for preventing overheating of scroll compressor
10/05/2005CN1221771C Refrigerator
10/05/2005CN1221740C Enclosed rotary compressor
10/05/2005CN1221737C Vortex compressor
09/2005
09/29/2005WO2005090875A1 Refrigeration system
09/29/2005US20050214151 Rotary compressor
09/29/2005US20050214138 Multistage rotary compressor
09/29/2005US20050214137 Multicylinder rotary compressor and compressing system and refrigerating unit provided with same
09/29/2005US20050210891 Trans-critical refrigerating unit
09/29/2005US20050210663 Magnetizing jig, magnetizing method using the jig, and method of assembling electric compressor by using the jig and the magnetizing method
09/29/2005DE10393602T5 Luftkühlende, trockene Vakuumpumpe Air-cooling, dry vacuum pump
09/28/2005EP1580433A2 Multistage rotary compressor
09/28/2005CN1675509A Oil carry-over prevention from helium gas compressor
09/28/2005CN1673529A Compressor with built-in motor and mobile structure using the same
09/27/2005US6948922 Hermetic compressor and open compressor
09/27/2005US6948919 Hermetic motor and gas booster
09/27/2005US6948915 Oil free screw compressor
09/22/2005WO2005088079A1 Rotary type expansion machine
09/22/2005WO2005088078A1 Fluid machine
09/22/2005WO2005088077A1 Rotary type expansion machine
09/22/2005US20050207925 Variable capacity rotary compressor
09/22/2005DE102005009752A1 Fluidmaschine Fluid machine
09/21/2005EP1577623A2 Trans-critical refrigerating unit
09/21/2005EP1577557A2 Multicylinder rotary compressor and compressing system and refrigerating unit provided with same
09/21/2005EP1577490A1 Volume expander and fluid machine
09/21/2005EP1358408A4 Horizontal scroll compressor
09/21/2005CN1671966A 卧式旋转压缩机 Horizontal rotary compressor
09/21/2005CN1670447A Trans-critical refrigerating unit
09/21/2005CN1670377A Variable capacity rotary compressor
09/21/2005CN1670375A Multistage rotary compressor
1 ... 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 ... 63