| Patents for F01C 21 - Component parts, details, or accessories, not provided for in groups (5,689) |
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| 05/10/1988 | US4743183 Rotary vane compressor with discharge fluid to front and rear shaft bearings and vane slats |
| 05/10/1988 | US4743182 Rotating piston compressor with thin-walled radially-resilient piston |
| 05/04/1988 | EP0265774A2 Sliding-vane rotary compressor |
| 04/28/1988 | DE3636048A1 Device for controlling an internal combustion engine |
| 04/28/1988 | DE3635999A1 Compressed air motor with new type of silencer |
| 04/27/1988 | EP0264778A2 Vane pump |
| 04/27/1988 | EP0264749A2 Sliding vane vacuum pump |
| 04/26/1988 | US4740144 Reversible radial vane air motor |
| 04/21/1988 | DE3635615A1 Internal combustion engine |
| 04/19/1988 | US4738603 Hydraulic vane pump |
| 04/19/1988 | US4738596 Fuel pumping apparatus |
| 04/12/1988 | US4737090 Movable vane compressor |
| 04/12/1988 | CA1235029A1 Rotary engine cooling system |
| 04/07/1988 | WO1988002438A1 Rotary machine |
| 04/05/1988 | US4735561 Machine having plural fixed internal axes with reinforced rotor |
| 04/05/1988 | CA1234788A1 Rotary compressor |
| 03/24/1988 | DE3724089A1 Vane pump for conveying foodstuffs |
| 03/22/1988 | CA1234376A1 Lubrication for rotary compressor vane |
| 03/15/1988 | US4730998 Scroll-type apparatus having a pivoting main journal bearing |
| 03/15/1988 | US4730995 Screw compressor bearing arrangement with positive stop to accommodate thrust reversal |
| 03/10/1988 | WO1988001696A1 Trochoidal gas processing devices |
| 03/08/1988 | US4729729 Lined with chromium-molybdenum alloy layer |
| 03/08/1988 | US4729726 Housing structure for a multiple-rotor type rotary piston engine |
| 03/03/1988 | DE3628998A1 Slide piston for rotary compressor |
| 03/01/1988 | US4728272 Rotary fluid displacement machine with revolving working chambers of periodically varying volume |
| 02/25/1988 | WO1988001353A1 Axial bearing device |
| 02/25/1988 | DE3631574C1 Device for controlling a rotary engine |
| 02/25/1988 | DE3616090A1 Valveless rotary piston engine with crankshaft |
| 02/04/1988 | DE3724128A1 Fluegelzellenpumpe Fluegelzellenpumpe |
| 02/02/1988 | US4722652 Hydraulic vane type pump |
| 01/26/1988 | US4721445 Outer envelope trochoidal rotary device having a rotor assembly having peripheral reliefs |
| 01/26/1988 | CA1231864A1 Scroll type fluid displacement apparatus with surface treated spiral element |
| 01/21/1988 | DE3623739A1 Rotary engine with desmodromic valve gear |
| 01/05/1988 | US4717322 Roots-type fluid machine |
| 01/05/1988 | US4717321 Vane compressor with vane back pressure adjustment |
| 01/05/1988 | US4717319 Housing of a rotary piston internal combustion engine |
| 12/29/1987 | US4715799 Composite construction of casing for rotary piston engine |
| 12/29/1987 | US4715796 Scroll-type fluid transferring machine with loose drive fit in crank shaft recess |
| 12/17/1987 | WO1987007675A1 Rotary piston machine |
| 12/17/1987 | DE3620205A1 Aluminium piston of a rotary internal combustion engine |
| 12/17/1987 | DE3620190A1 Aluminium piston of a rotary internal combustion engine |
| 12/15/1987 | US4712987 Vane compressor provided with endless camming surface minimizing torque fluctuations |
| 12/09/1987 | EP0248350A1 Rotary piston machine |
| 12/08/1987 | US4711620 Moving vane type compressor |
| 12/02/1987 | EP0247223A1 Annular combustion engine |
| 11/25/1987 | EP0247001A2 Vane pump for the transport of pasty foodstuffs, especially of sausage meat |
| 11/25/1987 | EP0246482A2 Vane pump |
| 11/19/1987 | DE3616515A1 Slide vane rotary vacuum pump |
| 10/29/1987 | DE3614349A1 Vane cell pump as well as vane suitable therefor |
| 10/29/1987 | DE3613640A1 Compressed air motor |
| 10/27/1987 | US4703021 Sliding contact type ceramics article and a method for manufacturing the same |
| 10/21/1987 | EP0241570A1 Volumetric displacement fluid machine |
| 10/15/1987 | DE3611395A1 Rotating piston compressor |
| 10/14/1987 | EP0240491A1 Rotary engine. |
| 10/13/1987 | US4699101 Volumetric displacement fluid machine |
| 10/07/1987 | EP0240294A2 Fiber reinforced metal vanes for rotary compressor |
| 09/29/1987 | CA1227468A1 Rotary compressor housing |
| 09/22/1987 | CA1227173A1 Interfitting mechanism of spiral elements for scroll type fluid displacement apparatus |
| 09/22/1987 | CA1227019A1 Method of manufacturing a rotor for a rotary fluid pump |
| 09/08/1987 | US4692105 Roller displacement motor |
| 09/08/1987 | US4692104 Rotary pumping apparatus with radial seal assemblies on piston |
| 09/08/1987 | CA1226478A1 Lubricating mechanism for scroll-type fluid displacement apparatus |
| 08/26/1987 | EP0233372A1 Cooling system for a rotary piston combustion engine |
| 08/25/1987 | US4688531 Rotary internal combustion engine |
| 08/20/1987 | DE3605222A1 Vane cell pump |
| 08/13/1987 | DE3604206A1 Dry-running slide vane rotary vacuum pump |
| 08/13/1987 | DE3603809A1 Two-step slide vane rotary vacuum pump |
| 08/05/1987 | EP0230646A1 Liquid cooled housing for rotary piston combustion engine |
| 07/30/1987 | DE3644320A1 Eccentric shaft of a rotary internal combustion engine |
| 07/29/1987 | EP0230054A1 Multi-purpose rotary vane machine |
| 07/22/1987 | EP0229376A1 Eccentric shaft for rotary piston combustion engine |
| 07/21/1987 | US4681519 Rotor for rotary fluid pump |
| 07/21/1987 | US4680844 For use in an air motor |
| 07/21/1987 | CA1224361A1 Rotary pump |
| 07/09/1987 | DE3603773A1 Gear machine |
| 07/07/1987 | CA1223747A1 Multi-groove and spline connection and method |
| 07/01/1987 | EP0226823A1 A method of manufacturing a rotor |
| 06/30/1987 | CA1223479A1 Axial clearance adjustment mechanism for scroll type fluid displacement apparatus |
| 06/24/1987 | EP0226352A1 Gear pump |
| 06/16/1987 | US4673341 Variable capacity roller- and vane-type pumps with non-circular cam profile |
| 06/16/1987 | CA1222985A1 Scroll-type fluid displacement apparatus |
| 06/16/1987 | CA1222984A1 Drive shaft support means for fluid displacement apparatus |
| 06/16/1987 | CA1222983A1 Scroll-type fluid displacement apparatus |
| 06/04/1987 | DE3638475A1 Eccentric drive for a rotating mass |
| 06/04/1987 | DE3542022A1 Rotary engine, especially an internal combustion engine |
| 06/02/1987 | US4669963 Rolling piston type rotary machine |
| 05/26/1987 | US4667468 Rotary internal combustion engine |
| 05/20/1987 | EP0221967A1 Centre-axle circular or rotary piston machine with tapered rotary pistons |
| 05/19/1987 | US4666381 Lubricant distribution system for scroll machine |
| 05/12/1987 | US4664609 Vane holder for vane pump and method of making same |
| 05/12/1987 | US4664607 Rotary engine cooling system with flow balancing |
| 05/06/1987 | EP0220383A1 Rotating piston machine |
| 05/05/1987 | US4662046 Power transmission |
| 04/23/1987 | WO1987002426A1 Vane cell compressor |
| 04/21/1987 | US4659298 Pump with vane actuating system |
| 04/21/1987 | US4659296 Rotary vane pump with plural outlet ports and relationship for cam surface radii |
| 04/16/1987 | DE3536368A1 Vane cell compressor |
| 04/15/1987 | EP0218016A1 Internal-axis rotary piston machine |
| 04/15/1987 | EP0217979A1 Vane cell compressor |
| 04/14/1987 | US4656984 Rotary internal combustion engine with integrated supercharged fuel-air induction |