| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
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| 06/20/2001 | CN1067465C Scroll compressor having discharge port inserts |
| 06/19/2001 | US6247910 Scroll type compressor which requires no flange portions or holes for solely positioning purposes |
| 06/19/2001 | US6247907 Thin counterweight for sealed compressor |
| 06/14/2001 | WO2001042661A1 Internal-axis screw displacement machine |
| 06/14/2001 | WO2001042660A1 Scroll compressor and air conditioner |
| 06/14/2001 | WO2001042659A1 Scroll type compressor |
| 06/14/2001 | WO2001042658A1 Scroll type compressor |
| 06/14/2001 | CA2393411A1 Internal-axis screw displacement machine |
| 06/13/2001 | CN2434449Y Vane type fluid rotor pump |
| 06/13/2001 | CN1299444A Vacuum pump |
| 06/13/2001 | CN1299434A Rotating piston machine with three-blade rotors |
| 06/13/2001 | CN1299011A Multi-cylinder compressor and method for manufacturing accentric shaft |
| 06/12/2001 | US6244841 Vacuum pumps |
| 06/12/2001 | US6244840 Scroll compressor having end plates of fixed and revolving scrolls thicker than heights of spiral protrusions of the scrolls |
| 06/12/2001 | US6244837 Deformed compressor motor winding to accomodate components |
| 06/12/2001 | US6244834 Variable capacity-type scroll compressor |
| 06/12/2001 | CA2057032C Scroll compressor |
| 06/07/2001 | US20010002981 Rotary compressor with vane body immersed in lubricating fluid |
| 06/07/2001 | US20010002980 Scroll compressor discharge muffler |
| 06/06/2001 | CN2433424Y Totally-enclosed four-rotary system refrigeration compressor |
| 06/06/2001 | CN1298474A Positive displacement machine |
| 06/05/2001 | US6241498 Rotary fluid mover |
| 06/05/2001 | US6241495 Modified positioning mechanism for stationary scroll of scroll compressor |
| 06/05/2001 | US6241490 Multirotor vacuum pump |
| 06/05/2001 | CA2118475C Scroll compressor |
| 05/31/2001 | WO2001038742A1 Vacuum pump comprising an outlet |
| 05/31/2001 | WO2001038740A1 Scroll type compressor |
| 05/31/2001 | US20010002239 Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor |
| 05/31/2001 | US20010001923 Air conditioner |
| 05/30/2001 | EP0746672B1 Positive displacement pump apparatus |
| 05/30/2001 | CN2432357Y Helical eddy pump |
| 05/30/2001 | CN1297112A Dual-blade rotary compressor |
| 05/30/2001 | CN1297111A Dry-type vacuumizing pump with cantilever and screw bolt |
| 05/30/2001 | CN1066361C Method for casting scroll |
| 05/29/2001 | US6238188 Compressor control at voltage and frequency extremes of power supply |
| 05/29/2001 | CA2216429C Gas flow and lubrication of a scroll compressor |
| 05/29/2001 | CA2172745C Variable capacity vane compressor with linear actuator |
| 05/29/2001 | CA2058618C Scroll compressor with discharge valve opened by centrifugal force |
| 05/24/2001 | US20010001639 Scroll vacuum pump with improved performance |
| 05/23/2001 | EP1101943A2 Control of a two-stage vacuum pump |
| 05/23/2001 | EP1101942A2 Evacuating apparatus |
| 05/23/2001 | EP1101070A2 Vapor-compression evaporative air conditioning system |
| 05/23/2001 | EP1101024A1 Quasi-isothermal brayton cycle engine |
| 05/23/2001 | CN2431419Y Energy-saving single screw compressor |
| 05/23/2001 | CN1296395A Quiet vacuum cleaner using vacuum pump with lobed chamber |
| 05/23/2001 | CN1296130A Rotary compressor and making method thereof |
| 05/22/2001 | US6236897 Calculation and precision processing of cardiocle and expanded cardioid casing curved surfaces for eccentric rotor vane pumps |
| 05/22/2001 | US6234769 Hybrid type compressor driven by engine and electric motor |
| 05/22/2001 | CA2153385C Pumping process for operating a multi-phase screw pump and pump |
| 05/17/2001 | WO2001034979A1 Scroll compressor for natural gas |
| 05/17/2001 | WO2001034945A1 Screw rotor machine having means for axially biasing at least one of the rotors |
| 05/16/2001 | CN1295196A Enclosed rotary compressor |
| 05/16/2001 | CN1065948C Lightweight scroll element and method of making the same |
| 05/15/2001 | US6231325 Scroll-type compressor |
| 05/15/2001 | US6231324 Oldham coupling for scroll machine |
| 05/15/2001 | US6231319 Hermetic compressor |
| 05/15/2001 | US6231317 Sealed compressor driven by a motor |
| 05/15/2001 | US6231316 Scroll-type variable-capacity compressor |
| 05/10/2001 | WO2001033082A1 Vane type fluid machinery |
| 05/10/2001 | WO2001033081A1 Pump for a fluid or gaseous medium |
| 05/10/2001 | DE19952605A1 Pumpe für ein flüssiges oder gasförmiges Medium Pump for a liquid or gaseous medium |
| 05/09/2001 | EP0683321B1 Swinging rotary compressor |
| 05/09/2001 | CN2429655Y Rotor machine with assembled accentric shaft for self pressured lubrication |
| 05/09/2001 | CN1065595C 涡旋式压缩机 Scroll compressor |
| 05/09/2001 | CN1065594C 涡旋压缩机 Scroll Compressor |
| 05/08/2001 | US6227834 Screw compressor with adjustment slide means |
| 05/08/2001 | US6227831 Compressor having an inclined surface to guide lubricant oil |
| 05/08/2001 | US6227830 Check valve mounted adjacent scroll compressor outlet |
| 05/08/2001 | US6227828 Gear pump for use in an electrically-operated sealed compressor |
| 05/08/2001 | US6227827 Scroll compressor and its sealing method |
| 05/03/2001 | WO2001031201A1 A single screw compressor |
| 05/02/2001 | EP1096150A2 Scroll machine |
| 05/02/2001 | CN2428599Y Flow-fixed forced-exhausting power blower fan for cooking-fume exhauster |
| 05/02/2001 | CN1293308A Rotary vane type compressor with rolling rotor |
| 05/02/2001 | CN1065324C Check valve of vortex compressor |
| 05/01/2001 | US6224357 Scroll fluid machine having an orbiting radius varying mechanism and a clearance between the wrap portions |
| 05/01/2001 | US6224356 Check valve stop and ports |
| 05/01/2001 | US6223775 Accumulator |
| 04/26/2001 | DE19950117A1 Spiral compressor has force-generating flexible rod mounted on housing so that it biases driven spirals against eccentric cranks of eccentric shafts |
| 04/25/2001 | CN2427650Y Energy-saving single-screw rod cmpressor |
| 04/25/2001 | CN1292850A Scroll compressor with combined pressure ratio and pressure differential relief valve |
| 04/25/2001 | CN1065027C Speed detector of scroll-type fluid machine |
| 04/25/2001 | CN1065025C Vortex type fluid machinery |
| 04/24/2001 | US6220841 Displacement type fluid machine |
| 04/24/2001 | US6220840 Wall shape for scroll-type compressor vanes |
| 04/24/2001 | US6220839 Scroll compressor discharge muffler |
| 04/24/2001 | US6220825 Rotary-screw air compressor having a separator and a cooler fan assembly |
| 04/18/2001 | CN1291685A Vortex type compressor |
| 04/17/2001 | US6217305 Screw pumps |
| 04/17/2001 | US6217304 Multi-rotor helical-screw compressor |
| 04/17/2001 | US6217303 Displacement fluid machine |
| 04/17/2001 | US6217301 Scroll fluid machinery |
| 04/17/2001 | US6216474 Part load performance of variable speed screw compressor |
| 04/11/2001 | CN1290818A Rolling rotor compressor with servo ring hinged blades |
| 04/11/2001 | CN1290817A Box type complete screw compressor |
| 04/11/2001 | CN1290816A Overheat protector for whirl compressor |
| 04/11/2001 | CN1064439C Scroll compressor oil pumping system |
| 04/11/2001 | CN1064437C Tooth screw stem |
| 04/10/2001 | US6213743 Displacement type fluid machine |
| 04/10/2001 | US6213742 Scroll-type fluid mover having an eccentric shaft radially aligned with a volute portion |