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 18 - Rotary-piston pumps specially adapted for elastic fluids
Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462)
10/2003
10/01/2003CN1445456A Vortex compressor with anti-inversion set
09/2003
09/30/2003US6626652 Motor-driven compressors and methods of assembling motor-driven compressors
09/30/2003US6626646 Vehicle mounted gas well pumping unit
09/30/2003CA2275789C Positive displacement pump
09/25/2003WO2003078842A1 Rotary compressor
09/25/2003US20030180169 Rotary compressor for vehicle
09/25/2003US20030180153 Vacuum pump
09/25/2003US20030180150 Oil free screw compressor operating at variable speeds and control method therefor
09/24/2003EP1347177A2 Horizontal compressor
09/24/2003EP1347176A2 Vacuum pump
09/24/2003CN1444700A Twin screw rotors and displacement machines containing the same
09/24/2003CN1443942A Single cylinder double rolling rotor revolving cylinder compressor
09/23/2003US6623244 Heater material
09/20/2003WO2001069061A1 Multiple induction energy-driven engine
09/18/2003WO2003076808A1 Scroll type fluid machine
09/18/2003US20030175140 Horizontal compressor
09/18/2003US20030175139 Scroll compressor having reversion preventive device
09/17/2003EP1344937A1 Scroll compressor with discharge valve
09/17/2003CN2573728Y Scroll automatic compensation oilless lubricating air compressor
09/17/2003CN1442617A Method of coating fluorocarbon resin and sliding part and gas compressor using said method
09/17/2003CN1442616A 空气压缩机 Air compressor
09/17/2003CN1121557C Closed rotary compressor
09/17/2003CN1121556C Screw rod mechanism
09/16/2003US6619934 Scroll compressor with motor control for capacity modulation
09/16/2003US6619430 Refrigerant gas buffered seal system
09/16/2003US6619062 Scroll compressor and air conditioner
09/16/2003US6618931 Apparatus for aligning scroll compressor
09/12/2003WO2003074880A1 Double compressor having planetary rotors
09/12/2003WO2003074879A1 Scroll compressor
09/12/2003WO2003074871A1 Closed compressor
09/12/2003WO2003033761A3 Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor
09/11/2003US20030170135 Rotor profile for screw compressors
09/11/2003US20030170134 Compressor and vane therefor
09/11/2003US20030167784 Two-stage compressor for an automotive air conditioner, which can be driven by a vehicle running engine and an electric motor different therefrom
09/10/2003CN2572051Y High-vacuum energy-saving slide valve vacuum pump
09/10/2003CN2572050Y Single-cylinder agricultural vehicle brake boosted vacuum pump
09/10/2003CN2572049Y Air compressor
09/10/2003CN1441538A Automatic start type synchronous motor and compressor using said motor
09/10/2003CN1441168A Vacuum air exhaust device
09/10/2003CN1441167A Vortex type compressor
09/10/2003CN1120962C Control system for starting of air conditioner and control method thereof
09/10/2003CN1120936C Whirl compressor and its prodn, method
09/10/2003CN1120935C Rotary pump with hydraulic vane actuation
09/09/2003US6616431 Scroll-type compressors
09/09/2003US6616430 Scroll compressors
09/09/2003US6616428 Double-cylinder two-stage compression rotary compressor
09/09/2003US6616424 Drive system and method for the operation of a fuel cell system
09/09/2003US6616415 Fuel gas compression system
09/09/2003US6615968 Ball bearing assembly electromagnetic clutch having ball bearing assembly and gas compressor utilizing electromagnetic clutch
09/09/2003US6615598 Scroll machine with liquid injection
09/09/2003US6615594 Compressor diagnostic system
09/09/2003CA2304096C Sustained-release liposomal anesthetic compositions
09/04/2003US20030164352 Displacement type compressor and method of forming coating film
09/03/2003EP1340916A2 Screw type vacuum pump
09/03/2003EP1339608A1 Device for emptying a food storage container which can be sealed by means of a valve
09/03/2003EP1108143B1 Dry-compressing screw pump
09/03/2003EP0846863B1 Scroll compressor
09/03/2003CN2570500Y Rotary compressor cylinder having leaf trap with lubricating oil aperture
09/03/2003CN2570499Y Vacuum pump
09/03/2003CN1120335C System for controlling starting of air conditioner and control method thereof
09/03/2003CN1120301C Terminal sealing device for vortex vacuum pump and vortex vacuum pump therewith
09/02/2003US6612820 Screw compressor having sealed low and high pressure bearing chambers
09/02/2003US6612117 Hydristor heat pump
08/2003
08/28/2003US20030161749 Vacuum exhausting apparatus
08/28/2003US20030161747 Scroll-type fluid machine
08/28/2003DE10033154C2 Schraubenverdichteranlage Screw compressor system
08/27/2003CN2568842Y Disk air compression mechanism
08/27/2003CN2568841Y Variable transmission gear of helical-lobe compressor
08/27/2003CN1438425A Vortex type pressing-out device
08/27/2003CN1438133A Motor-vehicle airconditioner using mixed compressor
08/27/2003CN1119530C Pressure biased co-rotationalscroll apparatus with enhanced lubrication system
08/27/2003CN1119529C Scroll type compressor
08/27/2003CN1119528C Scroll compressor and air condutioner
08/21/2003WO2003069162A1 Method of producing scroll mechanism
08/21/2003WO2003069130A1 Scroll-type expander having heating structure and scroll-type heat exchange system employing the expander
08/21/2003US20030156962 Rotary positive displacement machine
08/21/2003US20030156961 Scroll compressor having a back pressure chamber in a rotation preventing mechanism
08/21/2003US20030156954 Compressor unit
08/20/2003EP1336760A2 Compressor unit
08/20/2003EP1336759A2 Scroll compressor and expander
08/20/2003EP1007853B1 Oil-free screw rotor apparatus
08/20/2003EP0988453B1 Screw spindle vacuum pump and operating method
08/20/2003CN1437536A Car air conditioner and car with its conditioner
08/20/2003CN1436935A 空气供给装置 Air supply means
08/20/2003CN1436934A Mixing compressor
08/20/2003CN1436933A Apparatus for reducing friction loss of vortex compressor
08/20/2003CN1118634C 旋转式压缩机 Rotary compressor
08/20/2003CN1118633C Helical blade type compressor and refrigeration circulating apparatus using the same
08/20/2003CN1118632C Fluid machinery
08/19/2003US6607372 Refrigerating cycle or compressor having foreign matter collector
08/19/2003US6607367 Scroll type compressor
08/14/2003WO2003067092A1 Method for controlling the oil recirculation in an oil-injected screw-type compressor and compressor using this method
08/14/2003WO2003067032A1 Compressed air motor
08/14/2003WO2003067030A2 Gerotor apparatus for a quasi-isothermal brayton cycle engine
08/14/2003US20030152475 Twin screw rotors and displacement machines containing the same
08/14/2003US20030152473 Scroll-type compressors
08/14/2003US20030152472 Apparatus for reducing friction loss in scroll compressor
08/14/2003US20030152468 Vacuum pump with two co-operating rotors
08/14/2003US20030152467 Hybrid compressor
08/14/2003US20030150223 Scroll expressor
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