| Patents for F01C 11 - Combinations of two or more machines or engines, each being of rotary-piston or oscillating-piston type (1,299) |
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| 05/26/1998 | US5755197 Rotary engine |
| 03/17/1998 | US5727517 Equivalence-boosted sliding vane internal combustion engine |
| 02/11/1998 | CN1172910A Fluid machinery |
| 02/03/1998 | US5713210 Sliding-blade refrigeration apparatus and method |
| 01/29/1998 | WO1998003794A1 Rotary assembly |
| 01/29/1998 | DE19624618A1 Rotary piston engine |
| 01/22/1998 | WO1998002641A1 Elliptic piston rotary engine |
| 12/31/1997 | WO1997049899A1 Internal combustion rotary engine with constant volume (daisy system) |
| 12/30/1997 | CA2088662C Multi-chamber rotary lobe fluid machine with positive sliding seals |
| 12/02/1997 | US5692372 Aircraft compound cycle propulsion engine |
| 11/13/1997 | WO1997042398A1 Rotary piston internal combustion engine |
| 10/29/1997 | EP0803639A1 Hot gas motor and compressor unit |
| 09/25/1997 | DE19610689A1 Rotating piston engine |
| 09/18/1997 | WO1997034078A1 Internal combustion rotary engine |
| 08/06/1997 | EP0787251A1 Internal combustion engine |
| 07/17/1997 | WO1997019255A3 Power engine - working machine with turbine rotor |
| 07/01/1997 | US5642620 Hot gas motor and compressor unit |
| 06/25/1997 | CN1152675A Rolling-wheel type expansion machine |
| 06/10/1997 | US5636610 Multi-chamber rotary piston-engine |
| 05/29/1997 | WO1997019255A2 Power engine - working machine with turbine rotor |
| 05/28/1997 | DE19543572A1 Kraft- und Arbeitsmaschine mit Turbinenläufer Engine and machine with turbine rotor |
| 05/09/1997 | WO1997016635A1 Karbovnich rotary internal combustion engine |
| 04/23/1997 | CN1034687C Rotary-poiston internal combustion engine with compressed-air burning in different cylinders |
| 04/17/1997 | DE19617298A1 Rotary piston IC-engine or motor |
| 04/17/1997 | DE19538171A1 Rotary piston engine for motor vehicle |
| 04/16/1997 | EP0625243B1 Rotary engine |
| 04/03/1997 | WO1997012133A1 Rotary engine and compressor |
| 03/21/1997 | CA2185315A1 Rotary motor or engine having a rotational gate valve |
| 02/25/1997 | US5605124 Rotary screw internal combustion engine |
| 02/20/1997 | DE19517879A1 Rotary piston engine with combustion chamber between expander and compressor |
| 01/28/1997 | US5597295 Multi-chamber rotary fluid machine with at least two ring members carrying vanes |
| 01/28/1997 | US5596963 Stage combustion rotary engine |
| 01/15/1997 | EP0668962B1 Engine |
| 01/02/1997 | DE19624257A1 Engine with curved piston and gas turbine |
| 12/11/1996 | EP0747586A1 Rotary internal combustion engine |
| 11/14/1996 | DE19517541A1 Rotary piston engine using repeated eccentric contact design on chamber=cycled bases |
| 11/12/1996 | US5572882 Low pressure air cycle cooling device |
| 11/05/1996 | US5571244 Air bearing rotary engine |
| 10/30/1996 | EP0740051A2 Improved endothermic rotary piston engine |
| 10/29/1996 | US5568796 Rotary compressor and engine machine system |
| 09/24/1996 | US5558509 Sliding-blade water jet propulsion apparatus for watercraft |
| 09/19/1996 | DE19600679A1 Thrust engine for aircraft with compound cycle |
| 09/11/1996 | EP0500597B1 A rotary fluid engine |
| 08/01/1996 | WO1996023135A1 Rotary piston engine |
| 08/01/1996 | DE19527277A1 Four-drive, rotary piston IC engine |
| 07/30/1996 | US5540199 Radial vane rotary engine |
| 07/25/1996 | DE19500713A1 Sealing strip on generatrix on surface of rotating piston |
| 07/25/1996 | DE19500712A1 Elastomeric still-standing seal for threaded shaft |
| 07/23/1996 | US5537974 Method and apparatus for using exhaust gas condenser to reclaim and filter expansion fluid which has been mixed with combustion gas in combined cycle heat engine expansion process |
| 07/17/1996 | EP0613516B1 Multi-chamber rotary piston internal combustion engine |
| 06/27/1996 | DE19601499A1 Bearing pressure compensation for rotary piston engine |
| 06/04/1996 | US5522356 Method and apparatus for transferring heat energy from engine housing to expansion fluid employed in continuous combustion, pinned vane type, integrated rotary compressor-expander engine system |
| 05/30/1996 | WO1996016251A1 Voluminous work, especially internal combustion engine with rotary pistons and with extended expansion period |
| 05/30/1996 | DE4440924A1 Four disc IC engine with circulating pistons |
| 05/28/1996 | US5520147 Rotary motor or engine having a rotational gate valve |
| 05/21/1996 | US5518382 Twin rotor expansible/contractible chamber apparauts |
| 05/21/1996 | US5517960 Rotating internal combustion engine |
| 05/15/1996 | DE4439942A1 Quartz glass and low=expansion metal rotary piston engine |
| 04/30/1996 | US5511525 Sliding-blade heat engine with vortex combustion chamber |
| 04/24/1996 | EP0510125B1 Rotary internal combustion engine |
| 04/23/1996 | US5509388 Internal combustion rotary engine |
| 04/11/1996 | DE4435502A1 Rolling piston compressor for different gases |
| 02/29/1996 | DE4430277A1 Rotary cylinder IC engine |
| 02/15/1996 | DE4429877A1 Heat engine with rotor and cells |
| 02/15/1996 | DE4427982A1 Seal mounted between two discs which rotate at different speeds |
| 02/06/1996 | US5489199 Blade sealing arrangement for continuous combustion, positive displacement, combined cycle, pinned vane rotary compressor and expander engine system |
| 02/01/1996 | DE4426265A1 Gas turbine heat engine |
| 01/25/1996 | WO1995027844A3 Twin rotor expansible/contractible chamber assembly |
| 01/04/1996 | DE4421646A1 Rotary piston engine for vehicle and machines |
| 01/04/1996 | DE19522268A1 Turbine engine burning e.g. benzine, diesel, oil, gas etc |
| 01/02/1996 | US5479887 Rotary internal combustion engine and compressor |
| 12/21/1995 | WO1995034750A1 Internal-combustion engine, compressor or pump |
| 12/21/1995 | WO1995034749A1 Internal combustion engine |
| 11/29/1995 | EP0659259A4 Portable self-contained power and cooling system. |
| 11/16/1995 | DE4436196A1 Rotary IC engine |
| 11/14/1995 | US5466138 Expansible and contractible chamber assembly and method |
| 10/19/1995 | WO1995027844A2 Twin rotor expansible/contractible chamber assembly |
| 10/19/1995 | CA2164125A1 Twin rotor expansible/contractible chamber assembly |
| 10/18/1995 | EP0569454B1 Device for conveying and/or compressing media and working or power machines |
| 09/21/1995 | DE4409212A1 Double rotary piston IC engine for vehicle |
| 08/30/1995 | EP0668962A1 Engine. |
| 08/24/1995 | DE4405311A1 IC engine |
| 08/24/1995 | DE19502506A1 Combination of rotary piston systems for IC engines |
| 08/16/1995 | CN1106891A Rotory internal combustion engine |
| 06/28/1995 | EP0659259A1 Portable self-contained power and cooling system |
| 06/27/1995 | US5427068 Rotary compressor and engine machine system |
| 06/22/1995 | DE4442018A1 Rotary piston system for pumps, turbines and IC engines |
| 06/15/1995 | WO1995016116A1 Rotary engine |
| 06/13/1995 | US5423297 Two stage rotary vaned internal combustion engine |
| 04/11/1995 | US5405254 Rotary fluid displacement apparatus |
| 04/11/1995 | US5404850 Rotary combustion engine with oppositely rotating discs |
| 03/30/1995 | DE4432688A1 Rotary engine |
| 03/01/1995 | CA2105196A1 Two stage rotary vaned internal combustion engine |
| 02/28/1995 | US5393209 Double-ended ceramic helical-rotor expander |
| 02/09/1995 | DE4325454A1 Rotary combustion engine with separate compressor and compressed air reservoir functioning virtually continuously |
| 01/31/1995 | US5385457 Nutating positive displacement device having a magnetic element wire sensing arm |
| 01/18/1995 | EP0633979A1 Scroll expander driven compressor assembly |
| 01/18/1995 | EP0625243A4 Rotary engine. |
| 12/27/1994 | US5375985 Multi-chamber rotary fluid machine having at least two vane carrying ring members |
| 11/30/1994 | EP0626033A1 Rotary fluid displacement apparatus |