| Patents for F02B 57 - Internal-combustion aspects of rotary engines in which the combusted gases displace one or more reciprocating pistons (870) |
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| 10/30/2002 | CN1093590C Axial piston machines |
| 10/10/2002 | WO2002079625A1 Engine generator |
| 10/01/2002 | US6457443 Valveless rotating cylinder internal combustion engine |
| 09/26/2002 | WO2002016742A3 Crankless internal cumbustion engine |
| 09/26/2002 | DE10112708A1 Rotary piston engine crankshaft induces fuel mixture and expels exhaust gases |
| 09/12/2002 | WO2002070879A1 Rotary internal combustion air-cooled engine |
| 07/25/2002 | WO2002057606A1 Rotary crank-rod mechanism |
| 07/02/2002 | US6412273 Continuous-combustion piston engine |
| 06/27/2002 | US20020078907 Adiabatic internal combustion engine with regenerator and hot air ignition |
| 06/19/2002 | EP1214506A1 Internal combustion engine with regenerator and hot air ignition |
| 06/06/2002 | WO2002044535A1 Internal combustion engine |
| 05/29/2002 | EP0910729B1 Power machine lubrication |
| 05/23/2002 | US20020059907 Homogenous charge compression ignition and barrel engines |
| 05/16/2002 | US20020056420 Internal combustion rotary engine |
| 05/15/2002 | EP1117911B1 A valveless engine |
| 03/28/2002 | DE10042381A1 Verfahren zur Steuerung des Verdichtungsverhältnisses an einer Verbrennungskraftmaschine Method for controlling the compression ratio of an internal combustion engine |
| 03/07/2002 | WO2002018757A1 Method for controlling the compression ratio of an internal combustion engine |
| 03/06/2002 | CN1080372C Axial piston rotary engine |
| 02/28/2002 | WO2002016742A2 Crankless internal cumbustion engine |
| 02/28/2002 | US20020023597 Valveless engine |
| 01/30/2002 | EP0979348A4 A rotary and reciprocating internal combustion engine and compressor |
| 01/22/2002 | US6340004 Internal combustion engine with regenerator and hot air ignition |
| 12/26/2001 | CN1328203A Axial piston machine |
| 12/13/2001 | WO2000034636A8 Rotary internal combustion engine |
| 11/22/2001 | WO2001088340A1 Rotary cylinder fluid pressure machine |
| 11/21/2001 | EP1155221A1 Rotary two-stroke engine |
| 11/01/2001 | WO2001081741A1 Spark-ignition rotary internal-combustion engine |
| 10/18/2001 | WO2001077494A1 Piston motion modifiable internal combustion engine |
| 09/19/2001 | CN2448932Y Satellite type cylinder changeable internal combustion engine |
| 07/25/2001 | EP1117911A1 A valveless engine |
| 07/03/2001 | US6253717 Rotary engine |
| 06/28/2001 | DE10004759A1 4-stroke Otto engine for mobile use has take-off shaft screwed to outer and inner bearing shells, and four offset double-walled cylinders |
| 06/26/2001 | US6250279 Rotary internal combustion engine |
| 06/26/2001 | US6250262 Axial piston machines |
| 06/07/2001 | WO2000070214A3 Piston driven rotary engine |
| 06/05/2001 | US6240884 Valveless rotating cylinder internal combustion engine |
| 05/31/2001 | DE19954728A1 Drehkolbenvorrichtung Rotary device |
| 05/25/2001 | WO2001036789A1 Rotating piston device |
| 05/16/2001 | EP0799371B1 Axial piston rotary engine |
| 05/15/2001 | US6230670 Engine generator |
| 04/24/2001 | US6220208 Combustion engine having a rotatable cylinder block |
| 04/11/2001 | CN1291254A Method and means for varying piston-in-cylinder motion |
| 03/27/2001 | US6205960 Rotary and reciprocating internal combustion engine and compressor |
| 03/21/2001 | EP1085182A1 Internal combustion rotary engine |
| 03/08/2001 | WO2001016470A1 Internal combustion engine with regenerator and hot air ignition |
| 02/07/2001 | CN1283251A Rotary two-stroke engine |
| 01/17/2001 | EP0917617A4 Improvements in axial piston rotary engines |
| 01/03/2001 | CN2413031Y Energy-soving compound diesel and gasoline internal combustion engine |
| 01/03/2001 | CN1278888A Radial motor/pump |
| 01/02/2001 | US6167850 Rotary combustion engine with pistons |
| 12/19/2000 | US6161508 Valve system in a rotary radial-piston engine |
| 12/05/2000 | US6155214 Axial piston rotary engines |
| 11/23/2000 | WO2000070214A2 Piston driven rotary engine |
| 11/21/2000 | US6148775 Orbital internal combustion engine |
| 11/14/2000 | US6145482 Rotary-reciprocal combustion engines |
| 11/07/2000 | US6142111 Power machine |
| 10/25/2000 | EP1045963A1 Orbital internal combustion engine |
| 10/18/2000 | EP1044317A1 Method and means for varying piston-in-cylinder motion |
| 09/28/2000 | WO2000057044A1 Inverse peristaltic engine |
| 09/28/2000 | DE19912939A1 Rotary cylinder four-stroke internal combustion engine, consisting of closed fixed casing with sectors for four-stroke operation at circumference and radial rotor in interior |
| 09/28/2000 | CA2366360A1 Inverse peristaltic engine |
| 09/20/2000 | EP0788580B1 Fuel-injected piston combustion engine |
| 09/13/2000 | EP1035310A2 Piston engine with continuous combustion |
| 09/07/2000 | DE19909689A1 Kolbenmotor mit kontinuierlicher Verbrennung Piston motor with continuous combustion |
| 08/30/2000 | EP1030959A1 Radial motor/pump |
| 08/23/2000 | CN1055742C Rotary internal combustion engine |
| 08/17/2000 | WO2000047880A1 Rotary reciprocating internal combustion engine |
| 07/04/2000 | US6082313 Power machine lubrication |
| 06/29/2000 | DE19861056A1 Rotary reciprocating piston engine has central divisible rotor with pistons in opposite cylinder bores connected to crankshaft and reversing gear |
| 06/27/2000 | US6079377 Air cooled power machine |
| 06/27/2000 | US6079376 Fuel-injected piston combustion engine |
| 06/15/2000 | WO2000034636A1 Rotary internal combustion engine |
| 05/31/2000 | DE19853946A1 Rotation hollow cylinder motor has rotating hollow inner drum with radial cylinders that rotates in engine housing without valves, associated controllers, cylinder heads, with fixed bearings |
| 05/31/2000 | CN1255184A Improvements in axial piston rotary engines |
| 05/11/2000 | WO2000026505A1 Method and means for varying piston-in-cylinder motion |
| 04/12/2000 | EP0774057B1 Spherical piston radial action engine |
| 04/06/2000 | WO2000019071A1 A valveless engine |
| 02/16/2000 | EP0979348A1 A rotary and reciprocating internal combustion engine and compressor |
| 01/05/2000 | CN2357139Y Inside structure of combustion chamber of IC engine with high thermal efficiency |
| 12/15/1999 | EP0964136A1 Rotary internal combustion engine |
| 12/01/1999 | EP0960269A1 Combustion engine having a rotatable cylinder block |
| 11/11/1999 | DE19903672A1 Rotary piston engine as bi-cylinder for mobile or stationary mode |
| 10/27/1999 | EP0787251B1 Internal combustion engine |
| 10/21/1999 | WO1999039090A3 Shirwo system (a new internal combustion power system) |
| 10/19/1999 | US5967102 Combustion engine construction |
| 09/15/1999 | EP0672219B1 Rotary engine |
| 08/19/1999 | WO1999031363B1 Orbital internal combustion engine |
| 08/05/1999 | WO1999039090A2 Shirwo system (a new internal combustion power system) |
| 08/03/1999 | CA2138541C Rotary power device |
| 06/24/1999 | WO1999031363A1 Orbital internal combustion engine |
| 06/23/1999 | CN1043804C Spherical piston radial action engine |
| 06/09/1999 | CN1218872A Planetary internal combustion engine |
| 05/26/1999 | EP0918137A2 Rotary engine |
| 05/26/1999 | EP0917617A1 Improvements in axial piston rotary engines |
| 05/20/1999 | WO1999024696A1 Radial motor/pump |
| 05/20/1999 | CA2309669A1 Radial motor/pump |
| 05/18/1999 | CA2167685C Rotary internal combustion engine |
| 04/28/1999 | EP0910729A1 Power machine lubrication |
| 04/28/1999 | EP0910727A1 Power machine |
| 04/15/1999 | WO1999018332A1 Rotary two-stroke engine |