| Patents for F02B 55 - Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons (1,252) |
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| 01/31/2013 | US20130028771 Oil seal arrangement for rotary internal combustion engine |
| 01/31/2013 | US20130028769 Apex seal for rotary internal combustion engine |
| 01/30/2013 | CN102906393A 振荡活塞发动机 Oscillating piston engine |
| 01/30/2013 | CN102900516A Rotary internal combustion engine with exhaust purge |
| 01/30/2013 | CN102900514A Rotary internal combustion engine with pilot subchamber |
| 01/30/2013 | CN102900513A 超级引擎 Super Engine |
| 01/30/2013 | CN102900510A Compound engine system with rotary engine |
| 01/28/2013 | CA2783030A1 Multi-rotor rotary engine architecture |
| 01/28/2013 | CA2782735A1 Apex and face seals with rotary internal combustion engine |
| 01/23/2013 | CN102305130B 活塞式内燃机 Piston engine |
| 01/16/2013 | CN102877935A Three-stroke sliding vane type rotary engine |
| 01/16/2013 | CN102877934A Rotor structure for concentric rotor engine |
| 01/02/2013 | EP2539565A2 Rotary type internal combustion engine |
| 01/02/2013 | CN102011642B Vane type engine |
| 12/26/2012 | CN202628270U Rotor engine |
| 12/26/2012 | CN102840027A Arc cylinder pendulum type internal combustion engine |
| 12/26/2012 | CN101936217B Single-screw rod engine and energy converting method thereof |
| 12/19/2012 | CN102828820A Engine |
| 12/13/2012 | WO2012113039A3 Grechkin rotary engine |
| 12/13/2012 | DE102011103812A1 Double flat-topped piston engine mounted in vehicle such as motor car, has double flat piston fixed at center of pipe, which is moved in cylinder, and ball bearings are moved back and forth in quarter circle |
| 12/12/2012 | CN102817707A 旋转活塞发动机 Rotary piston engine |
| 12/06/2012 | WO2012166080A1 Multy-cylinder reciprocating rotary engine |
| 12/06/2012 | WO2012165993A1 Internal combustion engine |
| 12/05/2012 | CN202578902U Four-stroke disc-shaped engine mechanism |
| 12/05/2012 | CN102155286B Damping channel engine |
| 12/05/2012 | CN101994566B Double-blade rotary motor |
| 12/05/2012 | CN101338687B Shaking valve rotary cylinder type variable displacement device and its rotary engine |
| 11/29/2012 | DE102011018346B4 Rotationskolbenmotor und Abdichtungsverfahren für einen Rotationskolbenmotor Rotary engine and sealing method for a rotary engine |
| 11/21/2012 | CN102787909A Mover engine |
| 11/21/2012 | CN102787867A Rotary piston and cylinder devices |
| 11/21/2012 | CN101852122B Interdigitated rotor engine |
| 11/21/2012 | CN101245732B Ratchet type rotor engine |
| 11/20/2012 | CA2620602C Homogeneous charge compression ignition (hcci) vane-piston rotary engine |
| 11/14/2012 | CN102213138B Elliptical sliding vane type engine |
| 10/25/2012 | DE102011018346A1 Trochoidal rotary piston engine, has rotor arranged in working chamber, where rotor is provided with multiple sealing elements that are provided with multiple supplementary seals, and each sealing element comprises recess |
| 10/24/2012 | CN102140958B Four-rotor piston engine |
| 10/10/2012 | CN202483715U Roller rotary blade engine |
| 10/10/2012 | CN102251851B Turbine rotor engine |
| 10/04/2012 | DE102011001752A1 Rotationskolben-Verbrennungsmotor Rotary piston engine |
| 10/03/2012 | CN202468017U Two-stroke annular shell rotary type engine |
| 09/27/2012 | DE102011014861A1 Rotary piston engine has cooling circuit for cooling rotor provided in working space such that cooling air is supplied to rotor from closed cooling circuit through air supply line |
| 09/26/2012 | CN102691572A Rotary combustion engine |
| 09/19/2012 | CN202441483U Semicircular turbine |
| 09/19/2012 | CN102678289A Spiraster-type rotation device, engine, pneumatic motor, and compressor |
| 09/12/2012 | CN102667101A Supplemental compounding control valve for rotary engine |
| 09/12/2012 | CN102661195A Circumferential rotation type piston engine |
| 09/06/2012 | DE102011013004A1 Sealing strip for radial gas sealing of rotary piston, has two, particularly three identical strips, which are placed one behind other in piston groove, where former strip is pressed on side plate |
| 09/05/2012 | CN102094707B Hydrogen energy vortex engine |
| 08/29/2012 | CN202402133U Hybrid rotary piston internal combustion engine |
| 08/22/2012 | CN102644507A Rotary vane type engine |
| 08/15/2012 | EP2486258A1 Supplemental compounding control valve for rotary engine |
| 08/15/2012 | CN202381166U Annular efficient engine |
| 08/15/2012 | CN102635439A Engine |
| 08/09/2012 | WO2012103672A1 Damping channel engine |
| 08/02/2012 | DE102011116234A9 Kraftmaschinenanordnung mit einer eine Abgasrückführung für eine Primärkraftmaschine liefernden Rotationskolbenkraftmaschine Engine assembly having an exhaust gas recirculation for a primary combustion engine supplying rotary piston engine |
| 08/01/2012 | CN202360217U 旋转发动机 Rotary engine |
| 07/25/2012 | CN102606291A Engine |
| 07/25/2012 | CN101852121B Annular cylinder rotor engine |
| 07/19/2012 | DE102011000126A1 Method for operating internal combustion engine i.e. hydrogen engine, involves introducing fuel into detonation chamber, igniting fuel, and rotating rotor relative to injection apparatus |
| 07/18/2012 | CN102588092A Two-stroke self-suction rotating engine |
| 07/18/2012 | CN102588091A Rotary engine with homocentric arc trapezoid swivel plugs |
| 07/18/2012 | CN102588090A Spherical piston rotating type engine |
| 07/18/2012 | CN102588088A Thread rotor engine |
| 07/11/2012 | CN202325830U 一种发动机 An engine |
| 07/11/2012 | CN102562283A Internal combustion engine with double rotor pistons |
| 07/11/2012 | CN102562282A Semicircular turbine |
| 07/04/2012 | CN102536446A Rotary engine with double rows of pistons |
| 07/04/2012 | CN101506494B Vane-type internal combustion engine |
| 06/27/2012 | CN102269050B Rotor engine and rotor part thereof |
| 06/20/2012 | CN102505985A Triangle rotary piston engine and triangle rotor cooling method thereof |
| 06/14/2012 | WO2012057838A3 Rotary valve continuous flow expansible chamber dynamic and positive displacement rotary devices |
| 06/13/2012 | CN102493867A Four-rotor cold and hot double-chamber rotary engine |
| 06/07/2012 | WO2012044051A3 Rotary engine and multi-stepped rotary engine using same |
| 06/06/2012 | CN102486122A Crankless unsymmetrical piston type aircraft engine |
| 06/06/2012 | CN102486121A Rotor of internal combustion engine |
| 06/06/2012 | CN102486120A Dead-point-free type lean combustion rotor engine |
| 05/30/2012 | CN102477899A Generator set having housing |
| 05/23/2012 | CN102465758A Rotary modulation engine |
| 05/23/2012 | CN101392680B Water-oil hybrid circle rotor engine |
| 05/09/2012 | CN202215351U Oscillating wing type engine |
| 05/03/2012 | WO2012057838A2 Rotary valve continuous flow expansible chamber dynamic and positive displacement rotary devices |
| 05/02/2012 | CN102434274A Dynamic balancing system for triangle rotor engine and method thereof |
| 04/26/2012 | DE102011116234A1 Kraftmaschinenanordnung mit einer eine Abgasrückführung für eine Primärkraftmaschine liefernden Rotationskolbenkraftmaschine Engine assembly having an exhaust gas recirculation for a primary combustion engine supplying rotary piston engine |
| 04/25/2012 | CN202202950U Novel efficient engine |
| 04/25/2012 | CN1814999B Disc-shape centrifugal-block compression-type IC engine |
| 04/25/2012 | CN102428259A Separate-type rotary engine |
| 04/25/2012 | CN102425480A 转子发动机的强制风冷系统 Forced air cooling system rotary engine |
| 04/18/2012 | CN102418595A Engine with central axis elliptical rotor and compressed air bridged fuel oil clamped injection |
| 04/17/2012 | CA2528957C Rotary engine system |
| 04/11/2012 | EP2439387A2 Separate-type rotary engine |
| 04/11/2012 | CN102410080A Hybrid rotary piston internal combustion engine |
| 04/05/2012 | WO2012044185A1 An engine usable as a power source or pump |
| 04/05/2012 | WO2012044051A2 Rotary engine and multi-stepped rotary engine using same |
| 04/05/2012 | CA2849395A1 An engine usable as a power source or pump |
| 03/21/2012 | CN102383921A Rotor engine and rotor unit thereof |
| 03/15/2012 | DE10151639B4 Kreiskolbenmotor in Trochoidenbauweise Rotary engine in Trochoidenbauweise |
| 03/14/2012 | CN102374014A Double-cylinder sliding-piece type rotary internal combination engine |
| 03/08/2012 | WO2012030311A1 Propulsion system |
| 03/07/2012 | EP2425107A1 Rotary piston internal combustion engine |
| 02/22/2012 | CN202148951U Double-rotor piston internal combustion engine |