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)
05/2003
05/27/2003US6568198 Multi-stage compression refrigerating device
05/22/2003WO2003042542A1 Tempering method for a screw-type vacuum pump
05/22/2003WO2003042541A1 Cooled screw-type vacuum pump
05/22/2003WO2003042540A1 Check valve of scroll compressor
05/22/2003US20030096134 An electroless nickel plating surface layer providing hardness, excellent sliding characteristics, resist to peeling, wear resistance; non heat-treated layer
05/22/2003US20030095885 Gas compressor
05/22/2003US20030095884 Compressor fixed turbine assembly structure
05/22/2003US20030094815 Alternator having vacuum pump capable of improving cooling characteristic
05/22/2003US20030094004 Adaptive control for a cooling system
05/22/2003CA2463957A1 Cooling method for a screw-type vacuum pump
05/22/2003CA2463617A1 Cooled screw-type vacuum pump
05/21/2003EP1313200A2 Alternator having vacuum pump capable of improving cooling characteristic
05/21/2003EP1312880A2 Rotary compressor and refrigeration circuit
05/21/2003EP1311763A1 Pressure seal for a vacuum pump
05/21/2003CN2551782Y Non-eccentric elliptic rotor compressor
05/21/2003CN1419633A Interlocking scroll compressor components
05/21/2003CN1109197C Positive displacement compressor and coating-film formation method
05/20/2003US6565340 Compressor having a seal member for supporting a shaft during assembly
05/20/2003US6565339 Abrasion resistance structure of scroll compressor
05/20/2003US6565338 Compressor fixed turbine assembly structure
05/20/2003CA2274413C Rotary compressor with vane body immersed in lubricating fluid
05/15/2003WO2003040566A1 Compressor
05/15/2003US20030091746 Method of coating fluorocarbon resin, and sliding member and gas compressor using the same
05/15/2003US20030091446 Refrigerant compressor and pressure-resistant vessel
05/15/2003US20030089119 Diagnostic system and method for a cooling system
05/14/2003EP1309799A1 Screw-type compressor
05/14/2003CN1417479A Special rotary-vane vacuum pump
05/14/2003CN1417477A Vane of rotary compressor and its making process
05/14/2003CN1417476A Fluid compressing pump
05/14/2003CN1417475A Refrigerant compressor and pressure container
05/14/2003CN1417474A 压缩机 Compressor
05/14/2003CN1108456C Compressor for refrigerator
05/14/2003CN1108454C Fork type isolated blade rolling rotor cylinder structure
05/14/2003CN1108453C Screw gas compressor
05/14/2003CN1108452C Compressor of swirl
05/13/2003US6561776 Scroll compressor
05/13/2003US6561766 Oil free screw compressor operating at variable speeds and control method therefor
05/08/2003WO2003001035A3 Improved rotary machine
05/08/2003US20030086807 Screw machine
05/08/2003US20030086806 Screw machine
05/08/2003US20030086805 Screw machine
05/08/2003US20030086804 Rotary blower with an abradable coating
05/08/2003US20030086800 Motor-driven compressors
05/08/2003US20030086798 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
05/08/2003US20030084672 Refrigeration system and method for controlling defrost
05/08/2003US20030084666 Exhaust energy recovery system for combustion engine
05/07/2003EP1308328A2 An air-conditioner for use in an automobile
05/07/2003EP1307657A1 Two-shaft vacuum pump
05/07/2003CN2549211Y Radial flexible compensating mechanism of vortex compressor
05/07/2003CN1415861A Whirl compressor
05/07/2003CN1107806C Refrigerant compressor and refrigerating appts.
05/07/2003CN1107805C Vortex fluid machinery
05/06/2003US6558143 Scroll compressors
05/02/2003EP1306139A2 Method of coating with fluorocarbon resin, sliding member and gas compressor coated using the same
05/02/2003EP1305524A1 Compressor
05/02/2003EP1007851B1 A pair of co-operating screw rotors
05/01/2003WO2003036094A2 Vacuum pump
05/01/2003WO2003036093A1 Screw compressor assembly and method
05/01/2003US20030082064 Scroll compressor
05/01/2003US20030082061 Air-conditioner for use in an automobile
04/2003
04/30/2003CN1415055A Screw vaccum pump with coolant circuit
04/30/2003CN1414247A Gas compressor
04/29/2003US6554595 Compressor with oil-mist separator
04/29/2003US6554593 Dry screw vaccum pump having nitrogen injection
04/29/2003US6554481 Compressor bearings
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
04/24/2003US20030077195 Gas compressor apparatus
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
04/23/2003EP1303702A1 Twin screw rotors and displacement machines containing the same
04/23/2003CN1412441A High-low pressure zone separation mechanism for vortex compressor
04/23/2003CN1412440A Vortex portion cooling agent leakage-resisting device of vortex compressor
04/23/2003CN1106504C Scroll machine with reverse rotation sound attenuation
04/23/2003CN1106494C 旋转式活塞发动机 Rotary piston engine
04/22/2003US6551084 Screw rotor machine having means for axially biasing at least one of the rotors
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
04/22/2003US6551069 Compressor with a capacity modulation system utilizing a re-expansion chamber
04/22/2003US6550260 Vibration detection in a transport refrigeration system through current sensing
04/22/2003US6550258 Pre-start bearing lubrication for refrigeration system compressor
04/17/2003WO2003031821A1 Screw type vacuum pump
04/17/2003WO2003031820A1 Vacuum pump
04/17/2003US20030072664 Compressor discharge valve
04/17/2003US20030071533 Self-starting synchronous motor and compressor using the same
04/17/2003US20030070878 Refrigerant gas buffered seal system
04/17/2003US20030070712 Discharge valve assembly of fluid machinery
04/17/2003US20030070441 Control system of degree of superheat of air conditioner and control method thereof
04/16/2003EP1302665A2 Gas compressor with oil separation filter
04/16/2003EP1301714A1 Screw machine
04/16/2003EP0934465B1 Rotor provided with shaft pivots
04/16/2003CN1411538A Single-screw compressor
04/16/2003CN1410746A Method of detecting vibration by current sensing for use in transporting refrigerating system
04/16/2003CN1105830C 旋转式压缩机 Rotary compressor
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