| Patents for F02B 55 - Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons (1,252) |
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| 08/12/2008 | CA2348813C Side plate for trochoidal rotary piston engine |
| 07/30/2008 | CN201092883Y Rotary plate-type internal combustion engine |
| 07/30/2008 | CN101233307A Internal combustion engine |
| 07/23/2008 | CN201090294Y Separating ring high-efficiency engine |
| 07/16/2008 | EP1943418A1 Rotary piston engine |
| 07/09/2008 | EP1268980B1 Piston for an internal combustion engine |
| 07/09/2008 | CN101215990A Pendulum piston type rotor engine |
| 07/03/2008 | WO2008079039A1 Rotary-vane internal combustion engine |
| 07/02/2008 | CN201080853Y Annular cylinder plug internal combustion engine |
| 07/02/2008 | CN201080852Y Annular cylinder plug petrol engine |
| 07/02/2008 | CN201080851Y Back heating engine |
| 07/02/2008 | CN100398794C Contacting curve rotor engine |
| 07/02/2008 | CN100398783C Piston for an internal combustion engine |
| 06/26/2008 | WO2008077032A1 Rotary engine with cylinders of different design and volume |
| 06/25/2008 | EP1934443A1 Internal combustion engine |
| 06/25/2008 | CN101205830A Eccentric wheel type engine |
| 06/19/2008 | DE10300747B4 Kreiskolben-Brennkraftmaschine mit zwei dreieckförmigen Kreiskolben A rotary piston internal combustion engine with two triangular rotary piston |
| 06/18/2008 | EP1933016A2 Rotors having flow-modifying members for use in rotary engines |
| 06/18/2008 | CN101201013A Ceramic compound engine |
| 06/12/2008 | US20080135013 Paddling blades engine |
| 06/04/2008 | CN101191437A Rotor engine |
| 05/28/2008 | CN201065785Y Straight axle round rotor jet engine |
| 05/14/2008 | EP1920140A2 Improvements to wankel and similar rotary engines |
| 05/08/2008 | DE112006001615T5 Rotormotor Rotor motor |
| 05/07/2008 | CN201057087Y Blade type rotor motor |
| 05/07/2008 | CN201057086Y Full rotating engine |
| 05/07/2008 | CN101173629A Rotating internal combustion engine with double-speed transmission rotor pair |
| 04/09/2008 | CN101158313A Circular arc tooth cycloid rotor engine |
| 04/08/2008 | US7353796 Rotary machine |
| 04/02/2008 | CN201043490Y Double-chamber rotor type petrol engine |
| 03/26/2008 | CN101149017A Fixed axle structure for rotary-piston |
| 03/19/2008 | CN101144419A Ring cylinder intelligent piston internal combustion engine |
| 03/19/2008 | CN101144418A Ring cylinder piston petrol engine |
| 03/19/2008 | CN101144417A Rotor internal combustion engine |
| 02/27/2008 | CN101131120A Non-crankshaft thermomotor |
| 02/21/2008 | WO2008020571A1 Vane-type internal combustion engine |
| 02/20/2008 | CN201025115Y Compound rotor engine |
| 01/31/2008 | WO2008014399A2 Hydraulic engine |
| 01/30/2008 | CN201013447Y Double-shaft compression-ignition separate cylinder type rotary-piston explosive motor |
| 01/30/2008 | CN100365255C Changeable slide sheet circular centre type internal combustion engine |
| 01/23/2008 | EP1881153A1 Piston for an internal combustion engine |
| 01/23/2008 | EP1881152A1 Piston for an internal combustion engine |
| 01/23/2008 | CN100363601C Engine with quadrangle rotor |
| 01/16/2008 | CN201007232Y Elastica cylinder type face rotating piston engine |
| 01/09/2008 | CN201003426Y Straight axle rotor piston internal combustion engine |
| 01/09/2008 | CN201003425Y Rotor type IC engine |
| 12/21/2007 | WO2007145475A1 Power generating device for rotary piston engine of vehicle engine |
| 12/13/2007 | WO2007142551A1 Rotary internal combustion engine and the operational cycle thereof |
| 12/12/2007 | CN101086224A Sliding-vane rotor engine |
| 12/12/2007 | CN101086223A Straight axle round rotor jet engine |
| 12/05/2007 | CN100353042C Circular combined engine |
| 11/29/2007 | US20070272200 Independent combustion chamber-type internal combustion engine |
| 11/14/2007 | CN101070779A All-rotation engine |
| 11/14/2007 | CN101070778A Impeller type rotary engine |
| 10/17/2007 | EP1141530B1 Rotary engine having enhanced charged cooling and lubrication |
| 10/17/2007 | CN200961518Y Oil supply device of wankel rotary piston engine |
| 10/17/2007 | CN200961512Y Inversion generation set of wankel rotary piston engine |
| 10/17/2007 | CN200961507Y Rotor device of wankel rotary piston engine |
| 10/17/2007 | CN101054922A 涡轮转子发动机 Turbine rotor engine |
| 10/03/2007 | CN200955441Y Rotary rotor IC engine |
| 10/03/2007 | CN200955440Y Tetragonal rotor engine |
| 09/26/2007 | EP1837505A1 Rotary engine |
| 09/26/2007 | CN200952424Y 偏心轮发动机 Eccentric engine |
| 09/26/2007 | CN101042067A Different capacitance impeller-type internal combustion engine |
| 09/19/2007 | CN100338336C Ball shape rotary engine |
| 09/12/2007 | CN101033711A Curved cylinder rotary internal combustion engine without crankshaft |
| 08/29/2007 | CN200940514Y Rotary piston engine |
| 08/28/2007 | US7261066 Piston for an internal combustion engine |
| 08/16/2007 | WO2007091986A1 Rotary internal combustion engine |
| 08/14/2007 | US7255065 Piston for an internal combustion engine |
| 08/08/2007 | CN101012777A Gas engine |
| 07/18/2007 | EP1470319B1 Combustion engine |
| 06/21/2007 | US20070137610 Rotary engine |
| 06/20/2007 | EP1797300A2 Multilobe rotary motion asymetric compression/expansion engine |
| 06/13/2007 | CN2911206Y Differential capacity impeller type I.C. engine |
| 06/06/2007 | CN1975126A 节能型的转子发动机 Energy-efficient rotary engine |
| 05/30/2007 | CN2906076Y Piston rotating type four-in-one IC engine |
| 05/30/2007 | CN1973119A 回转引擎 Rotary Engine |
| 05/30/2007 | CN1318731C 燃烧发动机 Combustion engine |
| 05/23/2007 | CN1969112A Independent combustion chamber-type internal combustion engine |
| 05/10/2007 | WO2007053006A1 Rotary piston engine |
| 05/09/2007 | CN2898324Y Rotary IC engine |
| 05/09/2007 | CN1959081A Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons |
| 05/02/2007 | CN2895757Y Shuttle-shape rotor engine |
| 05/02/2007 | CN2895756Y Cam-rotor engine |
| 03/28/2007 | CN2883693Y Rotary I.C. engine |
| 03/21/2007 | CN1932247A Variable speed gear rotary piston power machine |
| 03/08/2007 | WO2007027174A2 Electromechanical valve actuator |
| 02/28/2007 | CN1920274A Rotary rotor IC engine |
| 02/28/2007 | CN1920273A 偏心轮旋转发动机 Eccentric rotary engine |
| 02/15/2007 | WO2007018527A1 Positive displacement rotary device and method of use |
| 02/14/2007 | CN1912374A Oil supply device of triangle rotor engine |
| 02/14/2007 | CN1912365A Rotor device of triangle rotor engine |
| 02/08/2007 | WO2007015114A1 Internal combustion engine |
| 02/08/2007 | CA2615910A1 Internal combustion engine |
| 02/07/2007 | CN1908403A Crankless disc type composite internal combustion engine |
| 02/07/2007 | CN1908402A Contacting curve rotor engine |
| 02/06/2007 | US7171941 Positive displacement rotary device and method of use |
| 01/24/2007 | CN2861508Y Square disc eccentric block compression type internal combustion engine |
| 01/24/2007 | CN1900499A Changeable slide sheet circular centre type internal combustion engine |