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 29 - Component parts, details, or accessories, of pumps or pumping installations specially adapted for elastic fluids, not provided for in groups
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)
07/1998
07/22/1998CN2286499Y Gas-suction silencer for refrigerator's compressor
07/21/1998US5782622 Hermetic compressor having a frame supporting the comprission mechanism
07/21/1998US5782618 Rotary compressor having a round cylinder block
07/21/1998US5782610 Method of stopping scroll compressor that is driven by 3-phase DC motor
07/21/1998US5782609 Vacuum pump having different diameter rotors and a drive motor synchronization system
07/15/1998CN1187603A Refrigerator
07/15/1998CN1187588A Hermetic compressor and silencer device for use therein
07/15/1998CN1187587A Fluid compressor
07/15/1998CN1187586A Closed compressor and its manufacturing method
07/14/1998US5779461 Scroll type fluid displacement apparatus having a control system of line contacts between spiral elements
07/14/1998US5779453 Vacuum pump motor arrangement having reduced heat generation
07/08/1998EP0852295A1 Compressor with valve for by-pass and anti-reverse rotation control
07/08/1998EP0851980A1 Rotary vane pump
07/07/1998US5775894 Compressor ball valve
07/07/1998US5775893 Scroll compressor having an orbiting scroll with volute wraps on both sides of a plate
07/07/1998US5775888 Scroll fluid machine having end plate with greater center thickness
07/07/1998US5775882 Multicylinder rotary compressor
07/07/1998US5775117 Variable capacity vapor compression cooling system
07/07/1998CA2105141C Orbiting member fluid displacement apparatus with rotation preventing mechanism
07/07/1998CA2072685C Motor driven fluid compressor within hermetic housing
07/02/1998WO1998028542A1 Impeller for a liquid ring machine
07/01/1998EP0851558A2 Electric motor assembly
07/01/1998EP0851126A1 Screw machine and shaft bearing lubrication
07/01/1998EP0851125A1 Rotary compressor
07/01/1998CN1186177A Noise reducing structure for hermetically sealed compressor
07/01/1998CN1186176A Rotary compressor with discharge chamber pressure relief groove
07/01/1998CN1186174A Scroll machine with reverse rotation sound attenuation
06/1998
06/30/1998US5772416 Scroll-type machine having lubricant passages
06/30/1998US5772415 Scroll machine with reverse rotation sound attenuation
06/30/1998US5772411 Gas flow and lubrication of a scroll compressor
06/25/1998DE19727719C1 Rotary fluid pump for miniature vacuum pump
06/25/1998DE19653746A1 Laufrad für eine Flüssigkeitsringmaschine Impeller for a liquid ring machine
06/24/1998EP0849471A1 High-pressure dome type compressor in which the discharge of oil by gas is prevented and in which oil is cooled by discharge gas
06/24/1998EP0848981A1 Pressure swing adsorption plant to separate oxygen from the air and process to operate the same
06/24/1998CN1185823A Varialle-displacement screw-type compressor
06/24/1998CN1185680A Guiding package
06/24/1998CN1185543A Refrigrant compressor and cooling device carried with said compressor
06/24/1998CN1185539A Positive displacement compressor and coating-film formation method
06/24/1998CN1185538A Vortex compressor
06/23/1998US5769617 Vane-type compressor exhibiting efficiency improvements and low fabrication cost
06/23/1998US5769613 Compressor muffler having sections interconnected by an elastic retainer
06/18/1998WO1998025686A1 Pulsator for obtaining oxygen from air, and principle of operation thereof
06/18/1998DE19651458A1 Pressure swing adsorption plant for recovery of atmospheric oxygen@
06/17/1998EP0847791A1 Pressure swing adsorption plant to seperate oxygen from the air and process to operate the same
06/17/1998CN1184895A Seal bearing for scroll type compressor
06/17/1998CN1184894A Scroll machine with reverse rotation protection
06/16/1998US5767635 Displacement machine with electronic motor synchronization
06/16/1998US5765392 Screw compressor apparatus for refrigerants with oils soluble in refrigerants
06/16/1998US5765380 Air-conditioning apparatus using radiation heat control system and method for stable air-conditioning operation
06/10/1998EP0846864A1 Rotary compressor with discharge chamber pressure relief groove
06/10/1998EP0846863A1 Scroll compressor
06/10/1998EP0846749A1 Refrigerator
06/10/1998EP0799382B1 Liquid ring gas pump with a silencer in the pressure chamber
06/10/1998EP0771394B1 Air cooling system for scroll compressors
06/10/1998CN1184209A Oil pickup apparatus for hermetic compressor
06/03/1998EP0845599A1 Sealing plug device for a refrigerant compressor
06/02/1998US5759021 Scroll type compressor having an annular intake groove for supplying lubricant to the rotation prevention mechanism
06/02/1998US5759020 Scroll compressor having tip seals and idler crank assemblies
06/02/1998US5758404 Method of assembling a motor
05/1998
05/27/1998EP0844398A1 Scroll machine with reverse rotation protection
05/27/1998CN1183136A Screw-type compressor with water hammer protection
05/27/1998CN1038526C Rotative compressor
05/20/1998EP0843098A1 Scroll compressor
05/20/1998EP0843093A2 Oil diffuser for a compressor
05/20/1998DE19647321A1 Unlubricated scroll type fluid machine for air compressor, vacuum pump
05/20/1998CN1182175A Oil-free scroll compressor
05/20/1998CN1038444C 涡旋式压缩机 Scroll compressor
05/19/1998US5752816 Scroll fluid displacement apparatus with improved sealing means
05/19/1998US5752806 Method of reducing noise from the flow of gaseous media in a single rotation machine using a bypass for compression control
05/19/1998US5752391 Refrigerating system
05/14/1998WO1998020259A2 Cascaded progressing cavity pump system
05/12/1998US5749716 Integrated oil pump rotor and coupling piece for an oil-sealed vacuum pump
05/06/1998EP0840011A1 Scroll machine with reverse rotation sound attenuation
05/06/1998EP0839283A1 Oil-sealed vane-type rotary vacuum pump with oil feed
05/06/1998EP0839282A1 Oil-sealed vane-type rotary vacuum pump with an oil pump
05/06/1998EP0725902A4 Tank mounted rotary compressor
05/06/1998CN1181128A Gas flow and lumbrication of scrool compressor
05/06/1998CN1180792A Vortex compressor
05/05/1998US5745992 Method of making a scroll-type machine
05/05/1998CA2144573C Oil management system for screw compressor utilized in refrigeration system
04/1998
04/30/1998WO1998017914A1 Rotor provided with shaft pivots
04/30/1998WO1998017895A1 Scroll fluid displacement apparatus with improved sealing means
04/22/1998EP0837243A1 Screw compressor especially for intermittent operation for the supply of air under pressure to railway vehicles
04/22/1998CN1179513A Movable turbine of turbine compressor and its making method
04/21/1998US5742109 Electric motor, pump and an electric motor/pump system
04/21/1998US5741127 Vane for vane compressor
04/16/1998WO1998015788A1 A method of operating a refrigeration system and a control valve
04/15/1998EP0836007A1 Vane vacuum pumps or compressors
04/15/1998CN1178872A Volumetric liquid machinery
04/15/1998CN1178871A Volumetric liquid machinery
04/15/1998CN1038060C Swing rotary compressor
04/14/1998US5738505 Perfected twin-screw pump, particularly suitable for the pumping of biphase fluids in a submerged environment
04/09/1998WO1998014705A1 Oil separator for compressors, scroll compressor using same, and method of manufacturing oil separator for compressors
04/09/1998CA2238342A1 Oil separator for compressors, scroll compressor using same, and method of manufacturing oil separator for compressors
04/08/1998EP0834655A1 Delivery valve structure
04/08/1998EP0834654A1 Valved discharge mechanism for fluid displacement apparatus
04/08/1998EP0834018A1 Multistage, screw-spindle compressor
04/08/1998EP0834017A1 Vacuum pump
04/08/1998EP0686772B1 Rotary compressor----------------------------------------------
04/08/1998EP0671806B1 Method of and apparatus for assembling an electric motor capable of using a motor housing having low dimensional precision
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