| 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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| 11/06/1997 | DE19714894A1 Non-return outlet valve for compressor |
| 11/06/1997 | DE19711448A1 Cell compressor for air conditioning in cars |
| 11/06/1997 | DE19710419A1 Vane type compressor for e.g. air conditioner used in motor vehicle |
| 11/06/1997 | DE19710418A1 Vane type compressor for e.g. air conditioner used in motor vehicle |
| 11/05/1997 | CN1163991A Scroll compressor |
| 11/04/1997 | US5683237 Horizontal type scroll compressor having inlet ports at an upper level of the casing |
| 11/04/1997 | US5683236 Anti-reverse rotation valve for scroll compressor |
| 11/04/1997 | US5683229 Hermetically sealed pump for a refrigeration system |
| 11/04/1997 | US5682793 Engaged rotor |
| 10/29/1997 | CN1036290C Engagement type rotor |
| 10/28/1997 | US5681155 Scroll type compressor having an elastic body in the driven crank mechanism |
| 10/21/1997 | US5678987 Rotary screw compressor with variable thrust balancing means |
| 10/21/1997 | US5678986 Fluid displacement apparatus with lubricating mechanism |
| 10/21/1997 | US5678657 Lubricating device for rotary compressors |
| 10/21/1997 | US5678299 Method for assembling an enclosed motor compressor of a two cylinder type using integral structures |
| 10/15/1997 | EP0800622A1 Compressor installation |
| 10/14/1997 | US5676535 Enhanced rotary compressor valve port entrance |
| 10/08/1997 | EP0799382A1 Liquid ring gas pump with a silencer in the pressure chamber |
| 10/08/1997 | CN1161415A Vortex compressor |
| 10/08/1997 | CN1036087C Compressor with internal filter |
| 10/07/1997 | US5674063 Screw fluid machine and screw gear used in the same |
| 10/07/1997 | US5674062 Hermetic compressor with heat shield |
| 10/07/1997 | US5674061 Scroll compression having a discharge muffler chamber |
| 10/07/1997 | US5674058 Scroll-type refrigerant compressor |
| 10/07/1997 | US5674051 Positive displacement pump having synchronously rotated non-circular rotors |
| 10/07/1997 | CA2042975C Scroll type fluid displacement apparatus |
| 10/01/1997 | EP0798465A1 Refrigerant compressor |
| 10/01/1997 | EP0798464A1 Process and plant for treating atmospheric air |
| 10/01/1997 | EP0798463A2 Oil-free scroll vacuum pump |
| 10/01/1997 | CN2263724Y Gear pump |
| 09/30/1997 | US5672054 Rotary compressor with reduced lubrication sensitivity |
| 09/30/1997 | US5672052 Blower muffling apparatus |
| 09/30/1997 | CA2081411C Motor driven fluid compressor |
| 09/27/1997 | CA2201045A1 Atmospheric air treatment installation and procedure |
| 09/25/1997 | WO1997035112A1 Anti-reverse rotation valve for scroll compressor |
| 09/24/1997 | CN1160127A Counterweight drag eliminator |
| 09/23/1997 | US5669762 Sound and pulsation reducing outlet chamber for an air compressor |
| 09/17/1997 | EP0701662B1 Positive displacement machine with electronic motor synchronisation |
| 09/16/1997 | US5667372 Rolling piston rotary compressor formed with lubrication grooves |
| 09/16/1997 | US5667371 Scroll machine with muffler assembly |
| 09/16/1997 | US5667367 Air compressor |
| 09/10/1997 | CN1158944A Eddy gas compressor with by-pass valve |
| 09/10/1997 | CN1035837C Liquid ring gas pump |
| 09/03/1997 | EP0793021A1 Vacuum pumps |
| 09/03/1997 | EP0793020A1 Vane type compressor |
| 09/02/1997 | US5662463 Rotary screw compressor having a pressure bearing arrangement |
| 09/02/1997 | US5661894 Method for assembling an electric motor employing a casing body having low dimensional accuracy |
| 08/28/1997 | WO1997031188A1 Inverter-controlled sealed compressor |
| 08/26/1997 | US5660539 Scroll compressor |
| 08/26/1997 | US5660535 Method of operating a claw-type vacuum pump and a claw-type vacuum pump suitable for carrying out the method |
| 08/26/1997 | US5660531 Gear pump with minimized canitation |
| 08/26/1997 | CA2091391C Horizontal rotary compressor oiling system |
| 08/20/1997 | CN1157375A Enclosed type rotary compressor |
| 08/19/1997 | CA2081433C Method for assembling motor driven fluid compressor |
| 08/13/1997 | EP0788402A1 An arrangement in autoclaving systems |
| 08/13/1997 | EP0653017B1 Arrangement of internal combustion engines provided with a supercharger and a fuel injection system |
| 08/12/1997 | US5655844 Rolling bearing unit |
| 08/06/1997 | CN1156218A Storage for rotary compressor |
| 08/06/1997 | CN1156217A Sealed compressor |
| 08/05/1997 | US5653585 Apparatus and methods for cooling and sealing rotary helical screw compressors |
| 07/30/1997 | EP0642629B1 Lubrication regulation system |
| 07/29/1997 | US5651930 Composite fiber rotor vane |
| 07/29/1997 | US5651301 Hydrostatic piston machines |
| 07/24/1997 | DE19702097A1 Cooling system for electric car |
| 07/23/1997 | EP0633980B1 Scroll machine with overheating protection |
| 07/22/1997 | US5649817 Scroll type fluid machine having first and second bearings for the driving shaft |
| 07/22/1997 | US5649816 Hermetic compressor with heat shield |
| 07/16/1997 | EP0784173A2 Safety relief valve assembly for a fluid displacement apparatus |
| 07/16/1997 | CN1154444A Electrical component protection device |
| 07/15/1997 | US5647728 Liquid ring machine having pivoted outer housing |
| 07/10/1997 | WO1997024415A1 Refrigerating machine oil and refrigerator using same |
| 07/09/1997 | EP0711387B1 Vacuum pump with a gas ballast device |
| 07/09/1997 | CN1153870A Enhanced rotary compressor valve port entrance |
| 07/08/1997 | US5645408 In a gamma camera system |
| 07/02/1997 | CN2257334Y Double volute multi-stage pump water intake section |
| 07/02/1997 | CN1153258A Closed compressor |
| 06/24/1997 | US5641279 Swing type rotary compressors having a cut-off portion on the roller |
| 06/24/1997 | US5640854 Scroll machine having liquid injection controlled by internal valve |
| 06/18/1997 | CN1152080A Anti-rotation mechanism for vortex volume-variable machine |
| 06/12/1997 | WO1997021055A1 A sub-sea pumping system and an associated method |
| 06/12/1997 | WO1997021033A1 Rotary compressor with reduced lubrication sensitivity |
| 06/11/1997 | EP0778451A2 Motor cooling in a refrigeration system |
| 06/11/1997 | CN1151486A Cooling device for oil-sealed rotary vacuum pump |
| 06/11/1997 | CN1151485A Whirl compressor and its prodn. method |
| 06/05/1997 | DE19546217A1 Screw compressor with liquid injection |
| 06/04/1997 | EP0777053A1 Scroll fluid machine |
| 06/04/1997 | EP0777051A2 Scroll compressor |
| 06/04/1997 | CN1150997A Positive displacement type vortex fluid compression device with sliding plane thrust bearing |
| 06/03/1997 | US5634782 Scroll compressor having a horseshoe-shaped partition wall on the stationary end plate |
| 05/29/1997 | WO1997019269A1 A scroll-type fluid displacement compression apparatus having a sliding plate thrust bearing |
| 05/28/1997 | DE19543879A1 Screw compressor with liquid injection |
| 05/28/1997 | CN1150621A Lubricant oil separating mechanism for compressor |
| 05/27/1997 | US5632613 Lubricating device for horizontal type hermetic compressor |
| 05/27/1997 | US5632612 Scroll compressor having a tip seal |
| 05/21/1997 | EP0774581A1 Pulse damper or acoustic outlet piece for a compressor and compressor equipped therewith |
| 05/21/1997 | EP0714482B1 Vacuum pump with oil separator |
| 05/21/1997 | CN1034968C Horizontal rotary compressor |
| 05/20/1997 | US5630712 Electrically-driven closed scroll compressor having means for minimizing an overturning moment to an orbiting scroll |
| 05/20/1997 | CA2045332C Compressor |
| 05/15/1997 | WO1997017545A1 Helical compressor |