| Patents for F04C 28 - Control of, monitoring of, or safety arrangements for, pumps or pumping installations specially adapted for elastic fluids (4,928) |
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| 11/27/1996 | EP0744548A2 Refrigerant compressor with rotation detecting means |
| 11/26/1996 | US5577897 Scroll-type variable-capacity compressor having two control valves |
| 11/20/1996 | EP0742869A1 Scroll-type fluid displacement device having high built-in volume ratio and semi-compliant biasing mechanism |
| 11/20/1996 | CN1136140A 涡旋压缩机 Scroll Compressor |
| 11/13/1996 | EP0741851A1 Refrigeration system and a method for regulating the refrigeration capacity of such a system |
| 11/13/1996 | CN1135580A Vane side surface refrigerant gas discharging apparatus for rotary type compressor |
| 11/12/1996 | US5573387 Vacuum pumps |
| 10/31/1996 | WO1996034204A1 Screw-type compressor with water hammer protection |
| 10/16/1996 | EP0737812A1 Gear pump |
| 10/15/1996 | US5564907 Evacuating apparatus |
| 10/10/1996 | DE19513136A1 Control for multi-pump pressure network |
| 10/08/1996 | US5562426 Scroll type refrigerant compressor |
| 10/02/1996 | DE19512950A1 Device to guide slide for adjusting volume ratio of screw compressor |
| 09/25/1996 | CN1131732A Eddy compression engine |
| 09/18/1996 | EP0732503A1 Scroll type compressor |
| 09/18/1996 | CN1131266A Refrigerating circulation arrangement |
| 09/18/1996 | CN1131238A Scroll compressor |
| 09/17/1996 | US5556271 Valve system for capacity control of a screw compressor and method of manufacturing such valves |
| 09/11/1996 | EP0731277A1 Apparatus with reverse rotation protection |
| 09/11/1996 | CN1130724A Scroll compressors with reverse rotation protector |
| 09/04/1996 | EP0730093A1 Control of a two-stage vacuum pump |
| 09/03/1996 | US5551846 Scroll compressor capacity control valve |
| 08/29/1996 | WO1996026368A1 Gas actuated slide valve in a screw compressor |
| 08/28/1996 | CN1129968A Oil level control device for compressor |
| 08/28/1996 | CN1129967A Horizontal scroll compressor |
| 08/21/1996 | EP0685038B1 Liquid ring machine and process for operating it |
| 08/14/1996 | EP0725902A1 Tank mounted rotary compressor |
| 08/13/1996 | US5546015 Determining device and a method for determining a failure in a motor compressor system |
| 08/13/1996 | US5545019 Scroll compressor drive having a brake |
| 08/08/1996 | WO1996023976A1 Protection device for a high side co-rotating scroll compressor |
| 08/08/1996 | CA2211688A1 Protective device for a high side co-rotating scroll compressor |
| 08/06/1996 | US5542822 Liquid ring pump and separator container assembly |
| 07/31/1996 | EP0724078A1 Multicylinder rotary compressor |
| 07/30/1996 | US5540565 Variable capacity vane compressor with linear actuator |
| 07/30/1996 | US5540558 Apparatus and method for electronically controlling inlet flow and preventing backflow in a compressor |
| 07/16/1996 | US5536152 Scroll compressor having improved orbital drive mechanism |
| 07/09/1996 | US5533873 Induction regulator valve for rotary compressors |
| 07/02/1996 | US5531571 Regulating device with starting and stopping device for screw-type compressors, and starting and stopping device used hereby |
| 07/02/1996 | CA2132173C Variable capacity vane compressor with axial pressure device |
| 06/26/1996 | EP0718500A1 Reverse rotation prevention for scroll compressors |
| 06/19/1996 | EP0717192A1 Oil level control device for a compressor |
| 06/18/1996 | US5527158 Scroll machine with overheating protection |
| 06/12/1996 | EP0716231A1 Horizontal scroll compressor |
| 06/06/1996 | WO1996017175A1 Rotary screw compressor with unloading means |
| 06/05/1996 | EP0715080A1 Fluid displacement apparatus with variable displacement mechanism |
| 06/05/1996 | EP0714482A1 Vacuum pump with oil separator |
| 06/04/1996 | US5522235 Reversible rotary compressor and reversible refrigerating cycle |
| 05/30/1996 | WO1996016302A1 System and method for performing cooling |
| 05/28/1996 | US5520525 Scroll compressor having wraps with recesses |
| 05/24/1996 | CA2163572A1 System and methods for controlling rotary screw compressors |
| 05/24/1996 | CA2161907A1 Valve system for capacity control of a screw compressor and method of manufacturing such valves |
| 05/22/1996 | EP0713010A1 Scroll compressor |
| 05/21/1996 | US5518373 Compressor start-up controller |
| 05/15/1996 | EP0711387A1 Vacuum pump with a gas ballast device |
| 05/15/1996 | DE4439724A1 Twin shaft mangle useful esp. for avoiding hydrocarbon emissions |
| 05/14/1996 | US5516267 Scroll compressor having a pressure relief mechanism using an oldham coupling |
| 05/14/1996 | US5516265 Interface apparatus for permitting microprocessor-based electronic control of non-electronically controlled air compressors |
| 05/07/1996 | US5513968 Inspection system for a defective rotation preventing device in an orbiting member of a fluid displacement apparatus |
| 05/07/1996 | US5513960 Rotary-vane pump with improved discharge rate control means |
| 05/02/1996 | WO1996013011A1 Vibration monitoring system |
| 04/30/1996 | US5511952 Refrigerant displacement apparatus with an improved thermal sensing device |
| 04/23/1996 | USRE35216 Scroll machine with floating seal |
| 04/23/1996 | US5509786 Thermal protector mounting structure for hermetic refrigeration compressors |
| 04/23/1996 | US5509273 Gas actuated slide valve in a screw compressor |
| 04/10/1996 | EP0705981A1 Capacity and volume ratio control valve assembly |
| 04/10/1996 | CN1120123A Vortex compressor |
| 04/09/1996 | US5505592 Variable capacity vane compressor |
| 04/04/1996 | CA2159167A1 Capacity and volume ratio control valve assembly |
| 04/02/1996 | US5503542 Compressor assembly with welded IPR valve |
| 04/02/1996 | US5503541 Reverse rotation preventing clutch |
| 03/27/1996 | EP0617759B1 Reverse phase and high discharge temperature protection in a scroll compressor |
| 03/20/1996 | EP0701662A1 Positive displacement machine with electronic motor synchronisation |
| 03/20/1996 | CN1118841A Reversible rotary compressor and reversible refrigerating cycle |
| 03/05/1996 | US5496388 System for compressing air and extracting nitrogen from compressed air |
| 03/05/1996 | US5496160 Scroll compressor having a suction check valve |
| 03/05/1996 | US5496157 Reverse rotation prevention for scroll compressors |
| 02/29/1996 | DE4429907A1 Vacuum generator using electrically-operated vacuum pump |
| 02/28/1996 | EP0698738A2 Suction control valve for rotary compressors |
| 02/27/1996 | US5494422 Scroll type compressor having a discharge valve retainer with a back pressure port |
| 02/27/1996 | US5494421 Scroll compressor having a gear oil pump accommodating reverse rotation |
| 02/21/1996 | EP0697523A2 Screw fluid machine and screw gear used in the same |
| 02/21/1996 | CN1117308A Swinging rotary compressor |
| 02/20/1996 | US5492450 Control valve for variable capacity vane compressor |
| 02/14/1996 | CN1031010C Capacity control mechanism of vortex compressor |
| 02/13/1996 | US5490769 Variable capacity scroll type fluid displacement apparatus |
| 02/06/1996 | US5489195 Liquid ring pump having a sheet metal valve plate |
| 01/31/1996 | CN1115998A Scroll compressor |
| 01/30/1996 | US5487654 Hermetic compressor with heat shield |
| 01/30/1996 | CA2154709A1 Induction regulator valve for rotary compressors |
| 01/18/1996 | DE4443387C1 Twin=step mechanical vacuum pump assembly |
| 01/17/1996 | EP0692635A2 Multistage dry compressing vacuum pump and method for its operation |
| 01/17/1996 | EP0692074A1 Co-rotation scroll compressor supercharger device |
| 01/11/1996 | WO1996000851A1 Oil level control device for a compressor |
| 01/09/1996 | US5482450 For handling a working fluid |
| 01/04/1996 | WO1996000350A1 Horizontal scroll compressor |
| 01/03/1996 | EP0690235A2 Method and apparatus for evacuating vacuum system |
| 01/02/1996 | CA2007230C Compressor for heat pump and method of operating said compressor |
| 12/20/1995 | EP0584177B1 A rotary displacement compressor and a method for regulating a rotary displacement compressor |
| 12/20/1995 | CN1113548A Vortex hydraulic mechanism |
| 12/20/1995 | CN1113547A Scroll machine with reverse rotation protection |