| Patents for F04C 29 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups (16,981) |
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| 03/30/1999 | US5888057 Scroll-type refrigerant fluid compressor having a lubrication path through the orbiting scroll |
| 03/30/1999 | US5887622 Valve assembly of a compressor |
| 03/25/1999 | WO1999014511A1 Sliding member and refrigerating compressor using the same |
| 03/25/1999 | DE19842050A1 Worm conveyor for liquids |
| 03/24/1999 | EP0903499A2 Scroll compressor |
| 03/24/1999 | CN2311649Y Pump suspension bearing frame water-cooling jacket for transfering high-temperature midia |
| 03/23/1999 | US5885066 Scroll compressor having oil bores formed through the crank shaft |
| 03/23/1999 | US5885063 Variable capacity scroll compressor |
| 03/23/1999 | US5884494 Oil flow protection scheme |
| 03/18/1999 | WO1999013225A1 Oil flow protection scheme |
| 03/18/1999 | WO1999013224A1 Oil-free screw rotor apparatus |
| 03/18/1999 | DE19739279A1 Compressor plant |
| 03/17/1999 | EP0902186A1 Scroll-type fluid displacement machine |
| 03/17/1999 | CN1210948A Refrigerant compressor and refrigerating apparatus |
| 03/17/1999 | CN1210947A 压缩机 Compressor |
| 03/17/1999 | CN1210945A Scroll compressor |
| 03/17/1999 | CN1210936A Displacement machine for compressible media |
| 03/11/1999 | WO1999011938A1 Pulsation damper |
| 03/11/1999 | WO1999011937A1 Compressor having a water circulation system |
| 03/10/1999 | EP0900939A1 Scroll compressor |
| 03/10/1999 | CN1210206A 旋转式压缩机 Rotary compressor |
| 03/10/1999 | CN1210205A Vortex compressor |
| 03/09/1999 | US5879146 Stepped wear indicator for a radial compressor |
| 03/09/1999 | US5879139 Vacuum pump with gas heating |
| 03/09/1999 | US5879138 Two-stage rotary vane vacuum pump |
| 03/04/1999 | WO1999010654A1 Electric compressor |
| 03/04/1999 | DE19736907A1 Elektrisch angetriebener Verdichter Electrically driven compressor |
| 03/03/1999 | EP0899460A2 Scroll type compressor |
| 03/03/1999 | EP0899459A1 Scroll type compressor |
| 03/03/1999 | EP0899423A1 Scroll compressible fluid displacement machine |
| 03/03/1999 | EP0736233B1 Electric motor for a drive, especially for a pump |
| 03/03/1999 | CN1209533A Variable refrigerant, stage-compression heat-pump |
| 03/03/1999 | CN1042361C Horizontal vortex compressor |
| 02/26/1999 | CA2245629A1 Displacement machine for compressible media |
| 02/25/1999 | DE19736017A1 Vacuum pump or compressor for compacting gases |
| 02/24/1999 | EP0898128A2 Variariable refrigerant, intrastage compression heat pump |
| 02/24/1999 | CN2308737Y Small magnetic shaft |
| 02/24/1999 | CN1209193A Inverter-controlled sealed compressor |
| 02/24/1999 | CN1209159A Refrigerating machine oil and refrigerator using same |
| 02/24/1999 | CN1208821A Sealed compressor having pipe connectors and method of joining pipe connectors to sealed casing |
| 02/24/1999 | CN1208819A Double roll and dry type scroll vacuum pump |
| 02/23/1999 | US5873261 Accumulator for rotary compressor |
| 02/23/1999 | US5873255 Digital control valve for refrigeration system |
| 02/18/1999 | WO1999008001A1 Horizontal type scroll compressor |
| 02/18/1999 | DE19729498A1 Verdichteranlage Compressor system |
| 02/16/1999 | US5871338 Vacuum pump with a gas ballast device |
| 02/16/1999 | CA2172744C Composite fiber rotor vane |
| 02/16/1999 | CA2164570C Scroll compressor with flywheel |
| 02/16/1999 | CA2089783C Scroll type compressor with variable displacement mechanism |
| 02/09/1999 | US5869914 Piloted assembly |
| 02/04/1999 | DE19830312A1 Hybrid drive for compressor |
| 02/03/1999 | EP0894978A1 Double-wrap dry scroll vacuum pump |
| 02/03/1999 | CN1206795A Multi-blade type impeller Roots blower (pump) structure with counter-flow device |
| 02/02/1999 | US5865607 Refrigerating cycle or compressor having foreign matter collector |
| 01/28/1999 | WO1999004167A1 Vane pump |
| 01/26/1999 | US5863317 Apparatus for gas liquid separation |
| 01/26/1999 | US5863191 Scroll compressor having a discharge muffler chamber |
| 01/26/1999 | US5863190 Scroll compressor |
| 01/21/1999 | WO1999002863A1 Compressor assembly |
| 01/20/1999 | CN1205397A Scroll hydraulic machine |
| 01/14/1999 | WO1999001668A1 Liquid ring pump |
| 01/14/1999 | WO1999001664A1 Seal structure for casing |
| 01/14/1999 | DE19726943A1 Kältemittelkompressor Refrigerant compressor |
| 01/14/1999 | CA2264149A1 Seal structure for casing |
| 01/13/1999 | EP0890709A1 Scroll hydraulic machine |
| 01/13/1999 | CN1205055A Oil separator for compressors, scroll compressor using said separator and method manufacturing said oil separator |
| 01/07/1999 | WO1999000600A1 Refrigerant compressor |
| 01/07/1999 | EP0889241A1 Scroll-type fluid displacement apparatus and method for manufacturing such apparatus |
| 01/07/1999 | DE19827932A1 Hydraulic pump for e.g. vehicle power steering |
| 01/07/1999 | DE19827924A1 Vehicle power steering with hydraulic pump |
| 01/06/1999 | CN1204385A Radial compliance mechanism for co-rotating scroll apparatus |
| 01/05/1999 | US5855475 Scroll compressor having bypass valves |
| 01/05/1999 | US5855473 High displacement rate,scroll-type, fluid handling apparatus |
| 12/30/1998 | CN2302356Y Special-shaped seal components using for gear pump |
| 12/30/1998 | CN1203654A Sub-sea pumping system and associated method |
| 12/30/1998 | CN1041453C Swinging rotary compressor |
| 12/29/1998 | US5853288 Scroll compressor having a counterboring part communicating with an intermediate pressure chamber |
| 12/23/1998 | CN2301560Y Water outlet parts for immersible screw pump |
| 12/23/1998 | CN1202757A Process for producing hermetic electric compressor |
| 12/23/1998 | CN1202578A Valve assembly of compressor |
| 12/23/1998 | CN1041342C 回转式压缩机 Rotary Compressor |
| 12/22/1998 | CA2174200C Scroll compressor having a suction check valve |
| 12/17/1998 | WO1998057067A1 Screw spindle vacuum pump and operating method |
| 12/17/1998 | WO1998057066A1 Scroll type fluid machine |
| 12/17/1998 | DE19724643A1 Schraubenverdichter und Verfahren zum Betrieb desselben The same screw-type compressor and method of operating |
| 12/17/1998 | CA2254730A1 Scroll type fluid machine |
| 12/16/1998 | EP0711385B1 Drive arrangement |
| 12/16/1998 | CN1201872A 涡旋式压缩机 Scroll compressor |
| 12/16/1998 | CN1201871A Scroll compressor |
| 12/15/1998 | US5848537 Method of improving the capacity/efficiency of a heat pump system |
| 12/10/1998 | WO1998055767A1 Horizontal scroll compressor |
| 12/09/1998 | EP0882894A2 Scroll compressor |
| 12/09/1998 | EP0882893A2 Scroll fluid displacement machine |
| 12/09/1998 | EP0882892A1 Scroll type machine |
| 12/09/1998 | EP0882780A1 Refrigerating machine oil and refrigerator using same |
| 12/09/1998 | EP0882184A1 Inverter-controlled sealed compressor |
| 12/09/1998 | CN1201116A Vortex compressor |
| 12/09/1998 | CN1201115A Vortex compressor |
| 12/09/1998 | CN1201113A Aspiration silencer of compressor |
| 12/08/1998 | US5846066 Vacuum pumps with claw-type rotor and roots-type rotor near the outlet |