| 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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| 07/13/1993 | US5226797 Rolling piston compressor with defined dimension ratios for the rolling piston |
| 07/13/1993 | US5226791 Structure of a rotor shaft and method of making same |
| 07/08/1993 | WO1993013316A1 Scroll compressor |
| 07/07/1993 | EP0549579A1 Rotary pump |
| 07/07/1993 | EP0458891B1 Screw rotor machine comprising a sound silencing device |
| 07/06/1993 | US5224849 Compliance mounting mechanism for scroll fluid device |
| 07/06/1993 | US5224848 Scroll compressor with discharge valve opened by centrifugal force |
| 07/06/1993 | US5224845 Refrigerant circulation pump for air-conditioner |
| 06/30/1993 | CN1073751A Pressure ratio responsive unloader |
| 06/29/1993 | USRE34297 Refrigeration compressor |
| 06/29/1993 | US5223759 DC brushless motor with solid rotor having permanent magnet |
| 06/29/1993 | US5222885 Horizontal rotary compressor oiling system |
| 06/29/1993 | US5222881 Scroll type compressor having curved surface portions between the shaft and bearing means |
| 06/29/1993 | US5222874 Lubricant cooled electric drive motor for a compressor |
| 06/24/1993 | DE4241002A1 Hydraulic rotary cell pump with adjustable throttle - uses temp. responsive control to expand gaps in coil spring windings |
| 06/24/1993 | DE4142660A1 Valve for periodic cleaning of compressor separator - opens and closes in response to impulses transmitted to electric motor |
| 06/23/1993 | EP0547491A1 Fluid displacement apparatus with a spiral element |
| 06/23/1993 | EP0547470A1 Positive displacement machine of the spiral principle |
| 06/23/1993 | EP0547436A1 Liquid ring pump |
| 06/23/1993 | EP0547254A1 Apparatus for generating an air/oxygen stream in biological purification plants |
| 06/22/1993 | US5221199 Lubrication oil volume control device in a scroll type compressor |
| 06/22/1993 | US5221198 Scroll type compressor with intake port aligned with counterweight |
| 06/22/1993 | US5221191 Horizontal rotary compressor |
| 06/16/1993 | EP0456688B1 Rotary screw compressor with inlet chamber |
| 06/16/1993 | CN1073238A Motor compressor |
| 06/16/1993 | CN1073237A Rotary vane compressor with capacity control |
| 06/16/1993 | CN1073236A Sealed electric compressor, vortex compressor and vertical milling cutter for making vortex guide blade |
| 06/15/1993 | US5219281 Fluid compressor with liquid separating baffle overlying the inlet port |
| 06/15/1993 | US5218762 Process to manufacture a cylinder for a rotary hermetic compressor |
| 06/10/1993 | WO1993011358A1 Twin opposing eccentric mount for a rolling piston compressor |
| 06/09/1993 | EP0545847A1 Pressure ratio responsive unloader |
| 06/09/1993 | EP0545191A1 Scroll-type fluid displacement machine |
| 06/09/1993 | EP0545187A1 Scroll type fluid displacement machine |
| 06/08/1993 | US5217361 Fluid compressor having lubrication for two spiral blade compression sections |
| 06/08/1993 | US5217360 Scroll compressor with swirling impeller biased by cooled lubricant |
| 06/08/1993 | US5217359 Scroll compressor with regulated oil flow to the back pressure chamber |
| 06/01/1993 | US5215501 Hysteresis magnet coupling for roots type pumps |
| 06/01/1993 | US5215452 Compressor having an oil pump ring associated with the orbiting shaft |
| 06/01/1993 | US5214937 Integral oil separator and muffler |
| 05/26/1993 | CN1072310A Fluid pump and rotary machine having said fluid pump |
| 05/25/1993 | US5213490 Scroll-type compressor with discharge opening above the lubricant reservoir |
| 05/25/1993 | US5213489 Scroll compressor with axial vibration prevention for a shaft bearing |
| 05/25/1993 | US5212964 Scroll apparatus with enhanced lubricant flow |
| 05/19/1993 | EP0542178A1 Sound damping of the air sucked in by a compressor |
| 05/19/1993 | EP0542169A1 Silencer for a screw compressor |
| 05/19/1993 | EP0541801A1 Rotary compressor |
| 05/18/1993 | US5211543 Liquid-ring pump with pressure chamber valve plate |
| 05/13/1993 | WO1993010355A1 Multi-stage gas compressor provided with bypass valve device |
| 05/12/1993 | CN1071999A Integral oil separator and muffler |
| 05/11/1993 | US5209653 Vacuum pump |
| 05/11/1993 | CA1317470C Compressor mounting apparatus |
| 05/05/1993 | EP0540459A1 Integral oil separator and muffler |
| 05/05/1993 | EP0539849A1 Eccentric anti-friction drive for fluid power apparatus |
| 05/04/1993 | US5208429 Combination muffler and check valve for a screw compressor |
| 05/04/1993 | US5207568 Rotary screw compressor and method for providing thrust bearing force compensation |
| 04/29/1993 | WO1993008404A1 Inlet control combination for a compressor system |
| 04/29/1993 | WO1993008386A1 Lubricating device for mechanically driven supercharger |
| 04/28/1993 | EP0539239A1 Motor driven fluid compressor |
| 04/28/1993 | EP0538973A1 Aircooled compressor unit |
| 04/28/1993 | EP0538892A1 Motor driven fluid compressor |
| 04/28/1993 | EP0538804A1 Method for assembling motor driven fluid compressor |
| 04/25/1993 | CA2081434A1 Motor driven fluid compressor |
| 04/21/1993 | EP0537884A1 Scroll machine with reverse rotation protection |
| 04/20/1993 | US5203686 Rotary compressor with span type discharge valve |
| 04/20/1993 | US5203683 Screw type pump |
| 04/20/1993 | US5203679 Resonator for hermetic rotary compressor |
| 04/20/1993 | CA1316512C Oil pump for a horizontal type rotary compressor |
| 04/19/1993 | WO1993008405A1 Compressor interstage coolant injector nozzle |
| 04/19/1993 | CA2080629A1 Orbiting rotary compressor with adjustable eccentric |
| 04/14/1993 | EP0537051A1 Installation for the pumping of gas with pumping speed regulation |
| 04/13/1993 | US5201648 Screw compressor mechanical oil shutoff arrangement |
| 04/13/1993 | US5201646 Scroll compressor eccentric bushing retainer |
| 04/13/1993 | US5201645 Compliant device for a scroll-type compressor |
| 04/13/1993 | US5201644 Valve arrangement for pump or compressor |
| 04/13/1993 | CA1316001C Valve indexing for a compressor |
| 04/07/1993 | EP0535533A1 Screw vacuum pump |
| 04/06/1993 | US5199859 Refrigerant compressor |
| 04/06/1993 | US5199858 Oil injection type screw compressor |
| 04/06/1993 | US5199280 Co-rotational scroll compressor supercharger device |
| 03/31/1993 | EP0534891A1 Scroll compressor with dual pocket axial compliance |
| 03/31/1993 | EP0533957A1 Rotary compressor |
| 03/30/1993 | US5197868 Scroll-type machine having a lubricated drive bushing |
| 03/30/1993 | US5197861 Fluid rotating apparatus |
| 03/18/1993 | WO1993004811A1 Rotor for a screw rotor machine |
| 03/17/1993 | CN1070034A Rotary vane gas compressors |
| 03/16/1993 | US5194717 Bracket for mounting a crankcase heater |
| 03/16/1993 | US5193992 Scroll type fluid displacement apparatus having control of the line contact urging force |
| 03/11/1993 | DE4129897A1 Control for interlinking of multistage vacuum pumps - has connection channel between pump stages with stroke valve, coupled to discharge valve |
| 03/03/1993 | EP0529754A1 Fluid pump and rotary machine having said fluid pump |
| 03/02/1993 | US5190438 Cooling jacket |
| 02/24/1993 | CN2127436Y 真空泵 Vacuum pump |
| 02/23/1993 | US5188521 Scroll compressor with reduced vibration resulting from the oldham's ring |
| 02/23/1993 | US5188520 Scroll type compressor with frames supporting the crankshaft |
| 02/18/1993 | WO1993003281A1 Control unit for a liquid ring compressor |
| 02/18/1993 | DE4127175A1 Roots twin-rotor vacuum pump - has elongated outlet with edges at slight angle to piston axes |
| 02/16/1993 | US5186546 Self-aligning bearing and closed-type electrically driven compressor having the same |
| 02/11/1993 | DE4126322A1 Steuerkoerper fuer einen fluessigkeitsringverdichter Steuerkoerper for a fluessigkeitsringverdichter |
| 02/10/1993 | EP0527102A1 Hydraulic compressor |
| 02/09/1993 | US5184944 Method and apparatus for changing lubricating oil in a rotary compressor |
| 02/04/1993 | WO1993002290A1 Rotary vane gas compressors |