| Patents for F04C 18 - Rotary-piston pumps specially adapted for elastic fluids (19,462) |
|---|
| 08/10/1993 | US5234323 Fluid positive displacement machine with gas injection in the discharge region |
| 08/05/1993 | WO1993015320A1 Scroll compressor |
| 08/04/1993 | EP0440677B1 Machine for a gaseous medium |
| 08/04/1993 | CN1021747C Scroll type fluid machinery |
| 08/03/1993 | US5232355 Scroll-type fluid apparatus having a labyrinth and oil seals surrounding a scroll shaft |
| 07/28/1993 | EP0552443A1 Gear machine |
| 07/21/1993 | CN2138709Y Automatic control protective net of Roots vacuum pump |
| 07/21/1993 | CN1074513A Coupling mechanism of vortex machinery |
| 07/21/1993 | CN1074512A Nested coupling mechanism for scroll machines |
| 07/20/1993 | US5228309 Portable self-contained power and cooling system |
| 07/20/1993 | US5228196 Method for preparing a scroll compressor |
| 07/15/1993 | CA2085695A1 Internally constrained vane compressor |
| 07/14/1993 | EP0446221B1 Cellular blower |
| 07/14/1993 | CN1021590C Scroll-type fluid machinery |
| 07/13/1993 | US5226791 Structure of a rotor shaft and method of making same |
| 07/08/1993 | WO1993013316A1 Scroll compressor |
| 07/06/1993 | US5224848 Scroll compressor with discharge valve opened by centrifugal force |
| 07/06/1993 | CA1319890C Synchronizing and unloading system for scroll fluid device |
| 06/30/1993 | CN1073751A Pressure ratio responsive unloader |
| 06/29/1993 | US5223052 Non-electrolytic nickel plating on surface of rotor, heating, second layer of organic resin |
| 06/29/1993 | US5222884 Noise limiters for rolling piston compressor and method |
| 06/29/1993 | US5222883 Scroll type compressor having the center of the cylindrical shell displaced for compactness |
| 06/29/1993 | US5222881 Scroll type compressor having curved surface portions between the shaft and bearing means |
| 06/23/1993 | EP0548003A1 Oldham coupling for scroll machine |
| 06/23/1993 | EP0548002A1 Coupling mechanism for scroll machines |
| 06/23/1993 | EP0548001A1 A method for dynamically balancing an Oldham coupling for a scroll machine |
| 06/23/1993 | EP0547491A1 Fluid displacement apparatus with a spiral element |
| 06/23/1993 | EP0547470A1 Positive displacement machine of the spiral principle |
| 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 |
| 06/18/1993 | CA2084371A1 Nested coupling mechanism for scroll machines |
| 06/16/1993 | EP0546281A1 Screw rotor and method of manufacturing the same |
| 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 |
| 06/16/1993 | CN1021244C Lift valve in rotary screw machine |
| 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 |
| 06/09/1993 | EP0545847A1 Pressure ratio responsive unloader |
| 06/09/1993 | EP0545191A1 Scroll-type fluid displacement machine |
| 06/09/1993 | EP0545190A1 Scroll-type fluid displacement machine |
| 06/09/1993 | EP0411000B1 A method for manufacturing screw rotors |
| 06/09/1993 | CN2135672Y Low-alloy high phosphorous iron chute blades |
| 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 |
| 06/08/1993 | US5217358 Scroll type compressor with elongated discharging part |
| 06/01/1993 | US5215452 Compressor having an oil pump ring associated with the orbiting shaft |
| 06/01/1993 | US5215451 Scroll type compressor having stepped assembling portions on the center shell |
| 05/27/1993 | WO1993010333A1 Rotary screw machine with thrust balanced bearings |
| 05/26/1993 | CN2134513Y Volume rotor pump |
| 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 | EP0541801A1 Rotary compressor |
| 05/18/1993 | US5211550 Scroll type fluid compressing apparatus with a thrust ring plate having flat and parallel circumferential opposite surfaces extending over an oldham ring |
| 05/18/1993 | US5211031 Scroll type compressor and refrigeration cycle using the same |
| 05/18/1993 | US5211026 Combination lift piston/axial port unloader arrangement for a screw compresser |
| 05/13/1993 | WO1993010356A1 Two-stage gas compressor |
| 05/13/1993 | WO1993010355A1 Multi-stage gas compressor provided with bypass valve device |
| 05/12/1993 | CN2132848Y Swirl fluid machinery |
| 05/12/1993 | CN1071998A Motion principle and structure design for double acting type rolling spool compressor |
| 05/05/1993 | CN2132006Y Spiral vortex air machine |
| 05/04/1993 | US5207568 Rotary screw compressor and method for providing thrust bearing force compensation |
| 05/04/1993 | US5207206 Method for controlling the supercharge pressure in internal combustion engine |
| 04/29/1993 | WO1993008386A1 Lubricating device for mechanically driven supercharger |
| 04/28/1993 | EP0539273A1 Volumetric machine with planetary movement and hypertrocoidal geometry |
| 04/28/1993 | EP0539239A1 Motor driven fluid compressor |
| 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 | EP0538179A1 High to low side bypass to prevent reverse rotation |
| 04/21/1993 | EP0537884A1 Scroll machine with reverse rotation protection |
| 04/21/1993 | EP0537867A2 Method for making a composite aluminum article |
| 04/21/1993 | CN2130213Y Horizontal fully-closed vortex compressor |
| 04/20/1993 | US5203685 Piston unloader arrangement for screw compressors |
| 04/20/1993 | US5203683 Screw type pump |
| 04/20/1993 | US5203679 Resonator for hermetic rotary compressor |
| 04/14/1993 | EP0537051A1 Installation for the pumping of gas with pumping speed regulation |
| 04/13/1993 | US5201645 Compliant device for a scroll-type compressor |
| 04/07/1993 | EP0535593A1 Method of manufacturing sintered aluminum alloy parts |
| 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 |
| 03/31/1993 | CN2128980Y Paddle type vacuum-pump |
| 03/31/1993 | CN2128979Y Air-compressor with oilless slide paddle |
| 03/31/1993 | CN1070454A Scroll type 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 | EP0532250A1 Rotary compressor |
| 03/17/1993 | CN1069906A Metal loading aromatization catalyst |
| 03/16/1993 | US5193992 Scroll type fluid displacement apparatus having control of the line contact urging force |
| 03/16/1993 | US5193987 Scroll type compressor |
| 03/10/1993 | EP0530222A1 Rotor for a rotary screw machine, a rotary screw machine and a process for manufacturing a rotor. |