| Patents for F01C 21 - Component parts, details, or accessories, not provided for in groups (5,689) |
|---|
| 08/22/1991 | WO1991012432A1 Rotary screw machine having thrust balancing means |
| 08/08/1991 | DE4003663A1 Rotary piston IC engine - has body of eccentric bearing has bores on both sides on its axial inner edges which line up with bores in piston |
| 08/07/1991 | EP0439660A1 Twin-shaft rotary piston machine |
| 07/31/1991 | EP0438982A2 Power skinning knife with removable drive mechanism and high efficiency pneumatic motor |
| 07/31/1991 | EP0438922A1 Refrigerant compressor for HFC 134a |
| 07/31/1991 | EP0318509B1 Axial bearing device |
| 07/25/1991 | WO1991010812A1 Rotary valve machine |
| 07/23/1991 | US5033946 Rotary vane machine with back pressure regulation on vanes |
| 07/18/1991 | DE4100328A1 Bearing arrangement for spiral compressor - is designed to prevent bearing overload by careful arrangement of bearing centres |
| 07/16/1991 | US5032070 Rotary machine having axially biased ring for limiting radial vane movement |
| 07/11/1991 | WO1991010045A1 Screw compressor for internal combustion engines |
| 07/09/1991 | US5030074 Rotary machine with dynamic pressure bearing grooves on vane guide ring |
| 07/09/1991 | US5030018 Adjustment device for centrifugal pump impeller |
| 07/03/1991 | EP0435815A1 Lapping of involute spiral scroll element |
| 07/02/1991 | US5027654 Volumetric meter for liquids and/or gases |
| 06/27/1991 | DE3942177A1 Rotary power unit with sliding vane motor - has exhaust driving precompressor and heating combustion air |
| 06/25/1991 | US5026263 Rotary vane pump with valve to control vane biassing |
| 06/18/1991 | US5024591 Vane compressor having reduced weight as well as excellent anti-seizure and wear resistance |
| 06/18/1991 | US5024114 Wobble drive for a translationally moving structural part |
| 06/11/1991 | US5022842 Vane pump with rotatable annular ring means to control vane extension |
| 06/04/1991 | US5021629 Electric plasma arc powder welded slide layer for rotary fluid pump vane |
| 05/29/1991 | EP0429208A2 Fluid compressing apparatus |
| 05/29/1991 | DE3939096A1 Runner for use in pump or motor - has lamellae fitting into slots in rotor and pushed outward by star-shaped leaf spring assembly |
| 05/21/1991 | US5017109 Cylinder and housing assembly for pneumatic tool |
| 05/16/1991 | WO1991006776A1 Scroll compressor |
| 05/08/1991 | DE3936429A1 Sealing gap in pump or compressor - involves use of fibre materials to form flocculation zones |
| 05/07/1991 | US5013227 Multistage roots pump and a method of assembling such a pump |
| 05/02/1991 | EP0425094A2 A rotary vane compressor |
| 04/30/1991 | US5011390 Rotary vane machine having stopper engaging recess in vane means |
| 04/30/1991 | US5011387 Rotary piston internal combustion engine |
| 04/30/1991 | US5011385 Bearing- and drive arrangement of a rotary piston internal combustion engine |
| 04/24/1991 | EP0424104A1 Rotary engine |
| 04/19/1991 | CA2027843A1 Rotary engine |
| 04/16/1991 | US5007813 Rotary rolling piston compressor with fixed vane having a relieved incline section |
| 04/10/1991 | EP0421263A1 Lubrication control system for rotary piston engine |
| 04/04/1991 | WO1991004402A1 Stirling engine type machine |
| 04/03/1991 | CN2074382U Automatic control flow direction cycloidal rotary lubricating pump |
| 03/27/1991 | CN1012201B Scroll compressor |
| 03/26/1991 | US5002473 Vane pump with annular ring and cylindrical slide as vane guide |
| 03/26/1991 | CA2026052A1 Rotary vane compressor |
| 03/26/1991 | CA1281891C Method of manufacturing rotor for rotary fluid pumps |
| 03/19/1991 | CA1281604C Rotary engine cooling system |
| 03/19/1991 | CA1281534C Method of manufacturing a rotor |
| 03/13/1991 | CN1011996B Fluid flowmeter |
| 03/12/1991 | US4998868 Vane pump with sliding members on axial vane projections |
| 03/12/1991 | US4998867 Rotary machine having axial projections on vanes closer to outer edge |
| 03/06/1991 | EP0415315A1 Primary vacuum pump |
| 03/05/1991 | US4997353 Vane pump with dynamic pressure bearing grooves on vane guide ring |
| 03/05/1991 | US4997351 Rotary machine having vanes with embedded reinforcement |
| 02/27/1991 | CN1011811B Scroll type compressor |
| 02/19/1991 | US4993929 Scroll machine with lubricated thrust surfaces |
| 02/05/1991 | US4989997 Radial load reducing device, and sliding bearing and screw compressor using the device |
| 02/05/1991 | CA1279854C Scroll type fluid compressor with axial clearance adjusting construction |
| 01/30/1991 | EP0410074A2 Radial load reducing device, and sliding bearing and screw compressor using the device |
| 01/22/1991 | US4986741 Vane compressor with ball valve located at the end of vane biasing conduit |
| 01/17/1991 | DE4020082A1 Vane cell vacuum pump for servo pump for servo drives - makes use of sintered rotor built up in layers |
| 01/16/1991 | EP0408011A1 Gerotor motor and improved pressure balancing therefor |
| 01/15/1991 | CA1279047C Lubricating mechanism for a scroll-type fluid displacement apparatus |
| 01/09/1991 | EP0406941A2 Wear resistant articles |
| 01/02/1991 | EP0404921A1 Rotor pair for a high-pressure screw-type compressor. |
| 12/19/1990 | EP0402959A2 Gear pump or motor |
| 12/11/1990 | US4976916 Method for producing ferrous sintered alloy product |
| 12/11/1990 | US4976594 Gerotor motor and improved pressure balancing therefor |
| 12/06/1990 | DE3918303A1 Rotary IC engine made of ceramic - has rotor with two or more lobes which rotate in cylindrical housing |
| 12/04/1990 | USRE33473 Oil feeding device for scroll fluid apparatus |
| 12/04/1990 | US4974318 Method of making a dual-shaft machine |
| 11/29/1990 | DE3916869A1 Rotary slide high speed air pump - has housing which encloses cylindrical inner chamber with smooth face surfaces and eccentrically mounted circular cylindrical rotor |
| 11/29/1990 | DE3916858A1 Internal axis rotary piston machine - has provision of low friction coating on rotor or housing |
| 11/27/1990 | US4973233 Four-rotor type rotary piston engine |
| 11/22/1990 | EP0398053A1 Vane pump for foodstuffs in paste form |
| 11/22/1990 | EP0397996A2 Internal combustion engine |
| 11/20/1990 | US4971536 Rotor for fluidic apparatus |
| 11/20/1990 | US4971533 Piston of a rotary piston engine |
| 11/13/1990 | US4969809 Lubrication system for an eccentric bearing of a rotary piston internal-combustion engine |
| 11/13/1990 | US4969429 Lube oil control system for turbocharged rotary piston engine |
| 11/06/1990 | US4968228 Housing for horizontal rolling piston rotary compressor |
| 10/30/1990 | CA1275642C Air pump vane assembly |
| 10/23/1990 | US4964787 Electric vehicle pump isolation mount |
| 10/23/1990 | US4964786 Compressor mounting apparatus |
| 10/17/1990 | EP0392975A1 Rotary scroll supercharger for compressible media |
| 10/17/1990 | EP0392230A2 Internal axis rotary piston machine |
| 10/16/1990 | US4963080 Rotary hydraulic vane machine with cam-urged fluid-biased vanes |
| 10/16/1990 | US4963041 Bearing mounting with self-compensation for thermal expansion |
| 10/10/1990 | EP0391182A2 Vacuum pump |
| 10/09/1990 | CA1275014A1 Rotary engine cooling system with flow balancing |
| 10/06/1990 | CA2012322A1 Electric vehicle pump isolation mount |
| 10/02/1990 | US4960373 Fluid motor rotor assembly |
| 09/27/1990 | DE3909831A1 Sliding-vane rotary pump designed for dry running, and method for manufacturing it |
| 09/27/1990 | DE3909259A1 Hydraulic motor with axial working connections |
| 09/26/1990 | EP0323979A4 Rotary machine |
| 09/25/1990 | US4958995 Vane pump with annular recesses to control vane extension |
| 09/19/1990 | EP0388127A1 Fluid motor rotor assembly |
| 09/18/1990 | US4957420 Vane pump with guide means for regulating movement of vane |
| 09/13/1990 | DE3939653A1 Twin-wheel externally meshing gear pump - with application of pump pressure to free gear |
| 09/13/1990 | DE3939652A1 Twin wheel externally meshing gear pump - incorporates roller bearings to support free gear |
| 09/13/1990 | DE3906584A1 Roots pump |
| 09/11/1990 | US4956058 Aluminum or aluminum alloy scrolls, milling, electrolysis or polishing, aluminite wear resistant surfaces |
| 09/11/1990 | US4955985 Vane pump with annular ring for engaging vanes and drive means in which the rotor drives the annular ring |
| 09/11/1990 | US4955414 Graphite crystallized in an austenitic cast iron matrix |
| 09/04/1990 | US4954057 Scroll compressor with lubricated flat driving surface |