| Patents for F04C 23 - Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids (6,201) |
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| 02/19/1997 | CN1143166A Vacuum pump |
| 02/06/1997 | WO1997004215A1 Scroll decompression device for cryogenic temperatures |
| 02/04/1997 | US5599178 Scroll-type compressor having fastening bolts for the fixed scroll |
| 01/29/1997 | EP0756088A2 Scroll compressor |
| 01/29/1997 | CN1141394A Scroll compressor |
| 01/28/1997 | US5597293 Counterweight drag eliminator |
| 01/22/1997 | CN2245680Y Claw type rotor vacuum pump |
| 01/22/1997 | CN1140806A Twin cylinder rotary compressor |
| 01/22/1997 | CN1140804A 涡旋压缩机 Scroll Compressor |
| 01/21/1997 | US5595477 Vacuum pumping stand |
| 01/21/1997 | US5595067 Energy pump |
| 01/15/1997 | EP0753649A1 Scroll type fluid machine |
| 01/08/1997 | CN1139834A Electric compressor |
| 01/07/1997 | US5591018 Hermetic scroll compressor having a pumped fluid motor cooling means and an oil collection pan |
| 01/07/1997 | US5590539 Refrigeration apparatus and methods |
| 12/24/1996 | CA2064961C Scroll type compressor with injection mechanism |
| 12/11/1996 | EP0747598A2 Capacity modulated scroll machine |
| 12/11/1996 | EP0747596A2 High displacement rate, scrolltype, fluid handling apparatus |
| 12/11/1996 | EP0746732A1 Refrigeration compressor |
| 12/11/1996 | EP0746685A1 Scroll compressor drive having a brake |
| 12/11/1996 | EP0593747B1 Compressor assembly with staked shell |
| 12/10/1996 | US5582511 Scroll machine having discharge port inserts |
| 12/03/1996 | US5580233 For compressing a fluid |
| 12/03/1996 | US5580230 Scroll machine having an axially compliant mounting for a scroll member |
| 12/03/1996 | US5580229 Scroll compressor drive having a brake |
| 12/03/1996 | US5579653 Closed-type compressor, and refrigerating unit, refrigerator and air conditioner each utilizing the compressor |
| 12/03/1996 | US5579651 Closed-type compressor, and refrigerating unit, refrigerator and air conditioner each utilizing the compressor |
| 12/03/1996 | CA1338762C Scroll-type fluid apparatus for variable speed operation |
| 11/28/1996 | WO1996037706A1 Worm-drive compressor |
| 11/28/1996 | DE19519247A1 Schraubenverdichter Screw compressor |
| 11/20/1996 | CN1136140A 涡旋压缩机 Scroll Compressor |
| 11/19/1996 | US5575629 Vapor control system |
| 11/13/1996 | CN1033291C Sealed electric compressor with two cylinders and process for assembly thereof and clamping device for assembling thereof |
| 11/12/1996 | US5573387 Vacuum pumps |
| 11/06/1996 | EP0741245A2 Twin cylinder rotary compressor |
| 11/06/1996 | CN1033242C Convolute-hydrodynamic mechanics |
| 10/30/1996 | CN1134517A Vortex compressor |
| 10/23/1996 | EP0738833A1 Multistage positive-displacement vacuum pump |
| 10/16/1996 | EP0738024A2 Electric compressor |
| 10/16/1996 | CN1133401A Vortex type fluid machinery |
| 10/16/1996 | CN1133400A Rotary compressor |
| 10/15/1996 | US5564907 Evacuating apparatus |
| 10/15/1996 | US5564186 Method of making a scroll compressor having a centering recess for assembly |
| 10/10/1996 | WO1996031702A1 Gas flow and lubrication of a scroll compressor |
| 10/08/1996 | CA2090381C Horizontal rotary compressor |
| 09/24/1996 | US5558509 Sliding-blade water jet propulsion apparatus for watercraft |
| 09/24/1996 | US5557845 Method for installing a stationary scroll |
| 09/18/1996 | CN1131238A Scroll compressor |
| 09/04/1996 | EP0730093A1 Control of a two-stage vacuum pump |
| 09/04/1996 | CN1032711C 压缩机 Compressor |
| 09/03/1996 | US5551851 Scroll compressor construction and method of assembly |
| 08/28/1996 | CN1129967A Horizontal scroll compressor |
| 08/27/1996 | US5549466 Scroll compressor having a centering recess for assembly |
| 08/27/1996 | US5549463 Composite dry vacuum pump having roots and screw rotors |
| 08/27/1996 | US5548973 Sealed type compressor and refrigerating cycle |
| 08/21/1996 | CN1129289A Compressor |
| 08/20/1996 | US5547355 Scroll type machine having means to prevent or suppress deflection of legs of scroll-supporting frame |
| 08/20/1996 | US5547344 Fluid compressor with selector valve |
| 08/13/1996 | US5545019 Scroll compressor drive having a brake |
| 08/13/1996 | US5544496 Refrigeration system and pump therefor |
| 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 |
| 08/07/1996 | CN1128326A Sealed electric compressor with two cylinders and method for assembly of same |
| 08/06/1996 | US5542831 Twin cylinder rotary compressor |
| 08/06/1996 | US5542828 Light-gas-isolation, oil-free, scroll vaccum-pump system |
| 08/06/1996 | US5542822 Liquid ring pump and separator container assembly |
| 07/31/1996 | EP0724078A1 Multicylinder rotary compressor |
| 07/30/1996 | US5540061 Refrigerator |
| 07/24/1996 | EP0723080A1 Vacuum pumping system |
| 07/23/1996 | US5538408 Scroll machine sound attenuation |
| 07/09/1996 | US5533875 Scroll compressor having a frame and open sleeve for controlling gas and lubricant flow |
| 07/04/1996 | WO1996020345A1 Scroll compressor having bearing structure in the orbiting scroll to eliminate tipping forces |
| 07/02/1996 | US5531577 Scroll type fluid machine having a lever driving mechanism |
| 07/02/1996 | US5531080 Refrigerant circulating system |
| 06/18/1996 | US5527167 Scroll machine sound attenuation |
| 06/12/1996 | EP0716231A1 Horizontal scroll compressor |
| 06/12/1996 | CN1124518A Scroll compressor capable of effectively cooling a motor |
| 06/12/1996 | CN1124332A Rotative compressor |
| 06/06/1996 | WO1996017175A1 Rotary screw compressor with unloading means |
| 06/05/1996 | EP0714482A1 Vacuum pump with oil separator |
| 06/05/1996 | CN1123888A Scroll type fluid machine |
| 05/30/1996 | WO1996016302A1 System and method for performing cooling |
| 05/28/1996 | US5520527 Apparatus for adjusting orbital radius in a scroll compressor |
| 05/28/1996 | US5520526 Scroll compressor with axially biased scroll |
| 05/21/1996 | US5518381 Closed rotary compressor |
| 05/15/1996 | EP0711919A1 Reverse drive oil pump |
| 05/15/1996 | EP0711384A1 Two-stage slide vane vacuum pump |
| 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 |
| 05/09/1996 | DE4439637A1 Multistage vane=type rotary vacuum pump |
| 05/08/1996 | CN1121994A Fluid compressor and air conditioner |
| 04/30/1996 | US5511959 Scroll type fluid machine with parts of sintered ceramics |
| 04/30/1996 | US5511525 Sliding-blade heat engine with vortex combustion chamber |
| 04/25/1996 | DE19539136A1 Rotary compressor with plates |
| 04/16/1996 | US5507618 Package-type oil-cooled air compressor |
| 04/11/1996 | DE4435502A1 Rolling piston compressor for different gases |
| 04/09/1996 | US5506486 Control apparatus for compressor with induction motor |
| 04/09/1996 | US5505596 Scroll type compressor having drain oil tube with flexible and nonflexible portions |
| 04/02/1996 | US5503542 Compressor assembly with welded IPR valve |
| 04/02/1996 | US5503539 Scroll type compressor having a thrust bearing for the drive shaft |