| 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) |
|---|
| 07/28/1992 | US5133651 Scroll compressor with a fluid thrust bearing |
| 07/28/1992 | CA1305690C Two stage liquid ring pump |
| 07/28/1992 | CA1305688C Scroll type compressor |
| 07/21/1992 | US5131825 Multi-stage vacuum pump with reaction chamber between stages |
| 07/07/1992 | US5127809 Scroll compressor with reinforcing ribs on the orbiting scroll |
| 07/01/1992 | EP0492759A2 Non-orbiting scroll mounting arrangements for a scroll machine |
| 06/30/1992 | US5125810 Scroll compressor with a stationary and orbiting member of different material |
| 06/23/1992 | US5123818 Rolling rotor motor driven scroll compressor |
| 06/16/1992 | CA1303579C Compressor with improved exposed outboard thrust plate and method ofassembly |
| 06/02/1992 | US5118251 Compound turbomolecular vacuum pump having two rotary shafts and delivering to atmospheric pressure |
| 05/21/1992 | DE4036754A1 Motor vehicle fuel pump unit - has hydraulic component gp. and electrical component gp. separately supported by end cover of housing |
| 05/19/1992 | US5114322 Scroll-type machine having an inlet port baffle |
| 05/13/1992 | CN1061079A Oldham coupling for scroll compressor |
| 04/28/1992 | US5108274 Scroll-type fluid machine with counter-weight |
| 04/28/1992 | US5108271 Multiple connection for rotation vacuum pumps |
| 04/21/1992 | US5106279 Orbiting scroll member assembly |
| 04/15/1992 | EP0480629A1 Improvements in mechanical pumps |
| 04/15/1992 | EP0480065A1 Scroll compressor |
| 04/15/1992 | CN1016259B 涡旋式压缩机 Scroll compressor |
| 04/08/1992 | EP0479412A1 Oldham coupling for scroll compressor |
| 04/07/1992 | US5102317 Two-cylinder-type rotary compressor system having improved suction pipe coupling structure |
| 04/07/1992 | US5102316 Non-orbiting scroll mounting arrangements for a scroll machine |
| 04/01/1992 | EP0477331A1 Manual device for generating local under or over pressure. |
| 03/31/1992 | US5100308 Vane pump with adjustable housing and method of assembly |
| 03/31/1992 | US5100302 Quick disassembly system for rotary vacuum pumps |
| 03/25/1992 | EP0476631A1 Multistage vacuum pump |
| 03/24/1992 | US5098266 Lubrication of a horizontal rotary compressor |
| 03/24/1992 | US5098265 Oil-free scroll fluid machine with projecting orbiting bearing boss |
| 03/10/1992 | US5094598 Capacity controllable compressor apparatus |
| 03/10/1992 | US5094085 Refrigerating cycle apparatus with a compressor having simultaneously driven two compressor means |
| 03/04/1992 | EP0472933A2 Fluid rotating apparatus |
| 03/04/1992 | CN1059189A Compressor |
| 02/25/1992 | US5090879 Recirculating rotary gas compressor |
| 02/18/1992 | US5088906 Axially floating scroll member assembly |
| 02/06/1992 | WO1991016133A3 Manual device for generating local under or over pressure |
| 02/04/1992 | CA1295303C Compressor with axially balanced shaft |
| 01/22/1992 | EP0467492A1 Compressor |
| 01/22/1992 | EP0467011A1 Liquid ring pump with magnetic coupling |
| 01/15/1992 | CN1057889A Scroll type fluid machinery |
| 01/09/1992 | DE4033154C1 Air cooled screw compressor - has motor housing and air compressor block flanges coupled via connector |
| 01/08/1992 | EP0464970A1 Scroll type fluid machinery |
| 01/08/1992 | EP0464282A2 Scroll compressor discharge valve |
| 12/27/1991 | EP0462924A1 Scroll type fluid machine |
| 12/17/1991 | US5073093 Scroll-type fluid handling machine |
| 12/11/1991 | EP0460864A1 Vapor recovering device for volatile liquid dispensing apparatus |
| 12/10/1991 | US5071329 Scroll type fluid transferring machine with thermoplastic Oldham ring |
| 12/10/1991 | US5071323 Scroll compressor with bypass release passage in stationary scroll member |
| 12/04/1991 | EP0459116A1 Silent vacuum pump |
| 12/04/1991 | EP0459107A1 Vacuum vane pump and its method of oil supply |
| 12/04/1991 | EP0459092A1 Two stage vacuum pump and method for its construction |
| 12/03/1991 | CA1292729C Multi-section roots vacuum pump of reverse flow cooling type with internal flow division arrangement |
| 11/14/1991 | WO1991017360A1 Scroll compressor |
| 10/29/1991 | US5060759 Compressor oil supply system |
| 10/18/1991 | WO1991016133A2 Manual device for generating local under or over pressure |
| 10/18/1991 | CA2060657A1 Manual device for generating local under or over pressure |
| 10/15/1991 | US5056336 Scroll apparatus with modified scroll profile |
| 10/08/1991 | US5055012 Scroll compressor with bypass release passage in stationary scroll member |
| 10/08/1991 | US5055010 Suction baffle for refrigeration compressor |
| 10/02/1991 | EP0448750A1 Multistage dry compressing vacuum pump and method for its operation |
| 09/24/1991 | US5051079 Two-piece scroll member with recessed welded joint |
| 09/24/1991 | US5051076 Two-cylinder-type rotary compressor system having improved suction pipe coupling structure |
| 09/03/1991 | US5044904 Multi-piece scroll members utilizing interconnecting pins and method of making same |
| 08/28/1991 | EP0443705A1 Scroll compressor |
| 08/27/1991 | US5042150 Method of assembling a scroll compressor |
| 08/20/1991 | US5040958 Scroll compressor having changeable axis in eccentric drive |
| 08/20/1991 | US5040952 Scroll-type compressor |
| 08/20/1991 | US5040949 Two stage dry primary pump |
| 08/14/1991 | EP0440677A1 Machine for a gaseous medium. |
| 08/13/1991 | US5039287 Direct suction system for a hermetic rotary compressor with insulating material at intake conduit |
| 08/06/1991 | US5037278 Scroll compressor with heat insulating and soundproof cover in bottom disposed low pressure chamber |
| 07/30/1991 | USRE33652 Electrically driven compressor with a peripheral housing weld |
| 07/30/1991 | US5035585 Multiple connector for rotation vacuum pumps |
| 07/18/1991 | CA2025444A1 Two-piece scroll member and method of manufacturing same |
| 07/18/1991 | CA2025419A1 Multi-piece scroll members utilizing interconnecting pins and method of making same |
| 07/03/1991 | EP0435291A1 Combined turbomolecular vacuum pump with two shafts and discharge at atmospheric pressure |
| 06/25/1991 | US5026262 Multipiece eccentric shaft |
| 06/12/1991 | EP0432084A1 Scroll compressor with unitary crankshaft, upper bearing and counterweight |
| 06/12/1991 | EP0432083A1 Scroll compressor and method of assembly |
| 06/11/1991 | US5022146 Multi-unit hermetic |
| 06/05/1991 | EP0430854A1 Multipiece eccentric shaft |
| 06/05/1991 | EP0430853A1 Slider block radial compliance mechanism |
| 05/21/1991 | US5017108 Scroll compressor with first and second oil pumps in series |
| 05/16/1991 | WO1991006776A1 Scroll compressor |
| 05/16/1991 | WO1991006775A1 Method of manufacturing scroll compressor |
| 05/16/1991 | WO1991006769A1 Scroll compressor |
| 05/16/1991 | WO1991006768A1 Scroll compressor |
| 05/16/1991 | WO1991006765A1 Scroll compressor |
| 05/16/1991 | WO1991006764A1 Scroll compressor |
| 05/16/1991 | WO1991006763A1 Scroll compressor |
| 05/16/1991 | DE3937827A1 Multistage compressor with high pressure reservoir - with operation provided by selective connection of inlet to high compression stage(s) |
| 05/14/1991 | US5015161 Multiple stage orbiting ring rotary compressor |
| 05/08/1991 | EP0426278A1 Dual capacity fluid pump |
| 05/08/1991 | EP0426206A2 Hermetic scroll type compressor |
| 05/08/1991 | EP0426078A1 Method of operating a volumetric pump |
| 05/07/1991 | US5013227 Multistage roots pump and a method of assembling such a pump |
| 05/07/1991 | US5013217 Compressing apparatus with extended variable capacity range and capacity control method thereof |
| 05/07/1991 | US5012896 Lubricating system for rotary horizontal crankshaft hermetic compressor |
| 05/01/1991 | CA2022841A1 Dual capacity fluid pump |
| 04/30/1991 | US5011384 Slider block radial compliance mechanism for a scroll compressor |
| 04/16/1991 | US5007810 Scroll compressor with unitary crankshaft, upper bearing and counterweight |