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)
05/2003
05/21/2003EP1312880A2 Rotary compressor and refrigeration circuit
05/21/2003EP1311763A1 Pressure seal for a vacuum pump
05/21/2003CN1419633A Interlocking scroll compressor components
05/21/2003CN1109198C Vortex type machine
05/20/2003US6565339 Abrasion resistance structure of scroll compressor
05/20/2003US6564576 Motor-driven compressors
05/20/2003CA2274413C Rotary compressor with vane body immersed in lubricating fluid
05/15/2003US20030091446 Refrigerant compressor and pressure-resistant vessel
05/14/2003EP1309799A1 Screw-type compressor
05/14/2003CN1417475A Refrigerant compressor and pressure container
05/14/2003CN1417474A 压缩机 Compressor
05/13/2003US6561766 Oil free screw compressor operating at variable speeds and control method therefor
05/13/2003US6560984 Compressor for a system for air-conditioning the passenger compartment of a motor vehicle
05/13/2003US6560868 Method of making lower end cap for scroll compressor
05/08/2003US20030086800 Motor-driven compressors
05/08/2003US20030086798 Compressor
05/08/2003US20030086797 Integrated air compressor
05/08/2003US20030084868 Rotary type fluid machine, vane type fluid machine, and waste heat recovering device for internal combustion engine
05/08/2003US20030084867 Rotary type fluid machine, vane type fluid machine, and waste heat recovering device for internal combustion engine
05/08/2003US20030084866 Rotary type fluid machine, vane type fluid machine, and waste heat recovering device for internal combustion engine
05/07/2003EP1308629A1 Integrated air compressor
05/07/2003EP1308328A2 An air-conditioner for use in an automobile
05/07/2003CN1415861A Whirl compressor
05/06/2003US6558126 Compressor utilizing low volt power tapped from high volt power
05/01/2003WO2003036188A1 Refrigerating equipment
05/01/2003WO2003036094A2 Vacuum pump
05/01/2003WO2003036089A1 Enclosed mechanical booster
05/01/2003US20030082064 Scroll compressor
05/01/2003US20030082061 Air-conditioner for use in an automobile
04/2003
04/29/2003US6554594 Shaft seal structure for vacuum pump
04/29/2003US6553663 Method of installing a protective connector assembly in a hermetic compressor
04/29/2003US6553645 Hermetic motor compressor and method assembling the same
04/24/2003WO2003033761A2 Multi-chamber installation for treating objects under vacuum, method for evacuating said installation and evacuation system therefor
04/24/2003WO2002053912A9 Cooling air arrangement for compressor
04/24/2003US20030077194 Scroll compressor
04/24/2003US20030077182 Multi-stage vacuum pump
04/24/2003US20030077181 In-line gas compression system
04/24/2003US20030074910 System for controlling starting of air conditioner and control method thereof
04/24/2003US20030074905 Car air conditioner and car with its conditioner
04/23/2003CN1106495C Motor spacer for hermetic motor-compressor
04/22/2003US6551082 Oil free type screw compressor
04/22/2003US6551081 Scroll-type compressor for a fuel cell with an obstruction member around a drive shaft
04/22/2003US6550260 Vibration detection in a transport refrigeration system through current sensing
04/17/2003WO2003031821A1 Screw type vacuum pump
04/17/2003WO2003031820A1 Vacuum pump
04/17/2003US20030072662 Two-piece powdered metal suction fitting
04/17/2003US20030070441 Control system of degree of superheat of air conditioner and control method thereof
04/17/2003US20030070429 Hydrostatic transmission
04/16/2003EP1301712A2 Monobloc housing for vacuum pump
04/16/2003CN1410746A Method of detecting vibration by current sensing for use in transporting refrigerating system
04/15/2003US6547544 Hermetic compressor and open compressor
04/15/2003US6547543 Scroll compressor with unique mounting of non-orbiting scroll
04/10/2003WO2003030296A2 Rotor for vane pump
04/10/2003US20030068236 Compressor, method for manufacturing the compressor, defroster of refrigerant circuit, and refrigeration unit
04/10/2003US20030066302 Oil amount detector, refrigeration apparatus and air conditioner
04/09/2003CN1409015A Vortex compressor with variable volume
04/09/2003CN1409014A Low pressure gas loop for compressor
04/09/2003CN1409011A Compressor and its producing method, frost removing device of coolant loop, and freezing device
04/08/2003US6544020 Cooled screw vacuum pump
04/08/2003US6543741 Vibration isolation for a transversely mounted compressor
04/08/2003US6543243 Hybrid compressor
04/08/2003US6543238 Refrigerant cycle system with expansion energy recovery
04/03/2003WO2003027441A1 Rotary fluid machinery
04/03/2003US20030063990 Scroll fluid machine
04/03/2003US20030063986 Low-pressure gas circuit for a compressor
04/03/2003US20030063983 Variable-capacity scroll-type compressor
04/03/2003US20030063982 Diagnostic system for a compressor
04/03/2003US20030061825 Vibration detection in a transport refrigeration system through current sensing
04/02/2003EP1298324A2 Rotary vane compressor with vane holding plug
04/02/2003CN1407237A Vortex compressor
04/02/2003CN1407233A Vortex compressor and its manufacture
04/02/2003CN1407232A Vortex compressor manufacture
04/02/2003CN1407231A Vortex compressor
04/02/2003CN1104606C Seal compressor and refrigeration air-condition device using said compressor
04/02/2003CN1104564C Vortex compressor
04/01/2003US6540489 Motor driven compressor
03/2003
03/27/2003US20030059327 Scroll-type fluid machine
03/27/2003US20030059326 Oil free type screw compressor
03/27/2003US20030059325 Quill drive miniature roots blower
03/27/2003US20030059319 Shaft axial compliance mechanism
03/27/2003US20030056534 Refrigerating device
03/26/2003CN1406318A Refrigeration compressor
03/26/2003CN1405951A Vortex compressor and refrigerator using ammonia-like as refrigrant
03/26/2003CN1405452A Compound compressor
03/26/2003CA2401636A1 Shaft axial compliance mechanism
03/25/2003US6537045 Rotating machine having lubricant-containing recesses on a bearing surface
03/20/2003WO2003023229A1 Vacuum pumping system and method of operating vacuum pumping system
03/20/2003US20030053916 Hybrid compressor
03/20/2003DE20121634U1 Multiple chamber plant used for degassing, coating or etching substrates comprises an evacuating system connected to chambers
03/19/2003EP1293676A2 Two stage scroll compressor
03/19/2003EP1293674A1 Scrawl compressor
03/19/2003EP1292541A1 Pumping arrangement for a household water purifier
03/18/2003US6533561 Scroll type compressor
03/18/2003US6533558 Closed rotary compressor
03/13/2003US20030049146 Refrigerant compressor
03/13/2003US20030046952 Scroll compressor and refrigerating system using ammonia group refrigerant
03/12/2003EP1291528A2 Scroll compressor and refrigerating system using ammonia group refrigerant
03/12/2003EP1291527A2 A two-stage vacuum pump
03/12/2003CN1402814A Multistage compressor unit and method for regulating such multistage compressor unit
03/12/2003CN1401910A Swirl compressor
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