| 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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| 02/10/2015 | US8950377 Hybrid internal combustion engine (variants thereof) |
| 02/03/2015 | US8943822 Engine system having dedicated auxiliary connection to cylinder |
| 01/29/2015 | DE102013107844A1 Hubkolbenmotor Reciprocating engine |
| 09/18/2014 | WO2014144156A1 Offset rotational non-reciprocating-piston internal combustion engine |
| 09/18/2014 | WO2014142708A1 Method for converting energy from compressed gas |
| 09/18/2014 | US20140261320 Offset rotational non-reciprocating-piston internal combustion engine |
| 09/18/2014 | US20140261292 Internal combustion engine with port communication |
| 08/12/2014 | US8800501 Rotating and reciprocating piston device |
| 07/24/2014 | DE112012004292T5 Orbitaler, nicht-reziprozierender Verbrennungsmotor Orbital, non-reziprozierender engine |
| 07/01/2014 | US8763358 Rotary type internal combustion engine |
| 06/11/2014 | CN103850784A An internal combustion engine |
| 05/15/2014 | DE102010064296B4 Rotationsverbrennungsmotor und Verfahren zur Einstellung der Steuerzeiten eines Rotationsverbrennungsmotors Rotary internal combustion engine and method for adjusting the valve timing of a rotary internal combustion engine |
| 04/24/2014 | US20140109864 Hybrid internal combustion engine (variants thereof) |
| 03/06/2014 | WO2014035277A1 Engine |
| 02/27/2014 | WO2014028991A1 Improvement to a two-stroke engine with valve effect |
| 02/19/2014 | CN203441595U Improved rotary cylinder engine of intake/exhaust devices |
| 02/19/2014 | CN1918372B Elliptical rotary motor with internal combustion |
| 02/12/2014 | CN203430627U Energy-saving internal combustion engine |
| 12/27/2013 | WO2013189471A1 Seal assembly for rotary piston internal combustion engine |
| 12/27/2013 | CA2875723A1 Seal assembly for rotary piston internal combustion engine |
| 12/11/2013 | CN101852089B Cylinder and piston co-rotating type engine |
| 12/04/2013 | CN203321673U Low-loss high-torque rotary cylinder engine |
| 11/13/2013 | CN103388526A Energy-saving internal combustion engine |
| 08/22/2013 | WO2009105842A3 Internal combustion engine |
| 08/20/2013 | US8511060 External combustion engine with a general wheel rotation power motor |
| 08/14/2013 | EP2625403A1 An engine usable as a power source or pump |
| 08/14/2013 | CN103249928A An engine usable as a power source or pump |
| 08/13/2013 | US8505500 Rotary piston engine with L-shaped piston and cylinder |
| 07/24/2013 | CN203081572U Y-shaped rotor engine |
| 07/24/2013 | CN102383923B Annular serial air cylinder piston type engine |
| 07/17/2013 | CN103206302A Four-stroke rotary engine |
| 07/16/2013 | US8485156 Rotary internal combustion engine |
| 07/10/2013 | CN102032043B Single-row reciprocating piston type rotor engine |
| 05/15/2013 | EP2592225A1 Internal combustion engine |
| 05/15/2013 | CN103104336A Y-shaped rotor motor |
| 05/08/2013 | CN103097661A Internal combustion engine |
| 04/23/2013 | CA2555351C Elliptical rotary motor with internal combustion |
| 04/18/2013 | WO2013055881A1 Orbital, non-reciprocating, internal combustion engine |
| 04/10/2013 | CN101990595B Method for reducing diesel engine emissions, and diesel engine |
| 04/09/2013 | CA2569844C Reciprocating and rotary piston engine |
| 03/19/2013 | US8397694 Airflow-based crank throttle control in a torque-based system |
| 03/06/2013 | CN202768141U Curved rotary cylinder rotor engine of rotating wheel |
| 02/20/2013 | CN102269054B Rotor engine shell and rotor engine |
| 01/16/2013 | CN101943055B High-fuel-efficiency internal combustion engine |
| 12/05/2012 | CN101054057B Hybrid powertrain for homogeneous charge compression ignition engine operation |
| 11/27/2012 | US8316817 Rotary piston engine |
| 11/21/2012 | CN102787911A Superimposed rotary engine |
| 11/21/2012 | CN102787910A Reversed cylinder rotary engine with balancing block |
| 10/30/2012 | US8297239 Gyroscopic rotary engine |
| 10/24/2012 | EP2514920A1 Rotatary machine |
| 10/04/2012 | US20120247425 Method and apparatus for a high flow cylinder head for internal combustion engines |
| 10/03/2012 | CN202468018U Revolving cylinder rotor engine |
| 08/14/2012 | US8240147 Rotary energy conversion device with reciprocating pistons |
| 08/09/2012 | WO2012032552A4 "rotary internal combustion engine with reducer and pistons that control the cycle" |
| 08/09/2012 | CA2731299A1 Novel simpler and efficient internal combustion engine |
| 08/01/2012 | EP2481950A1 Motor vehicle with belt drive and planetary gear between combustion engine and electrical engine |
| 07/25/2012 | CN102606293A High-efficient cylinder power output system with movable cylinder and fixed piston |
| 07/25/2012 | CN102606292A Runner curve rotary cylinder rotor engine |
| 07/18/2012 | CN101482056B Heat absorption and energy recovery type internal combustion engine |
| 07/05/2012 | DE102010064296A1 Rotationsverbrennungsmotor und Verfahren zur Einstellung der Steuerzeiten eines Rotationsverbrennungsmotors Rotary internal combustion engine and method for adjusting the valve timing of a rotary internal combustion engine |
| 07/04/2012 | CN102536447A Rotary-cylinder rotor engine |
| 06/14/2012 | DE112010003153T5 Verbrauchsoptimierungstechnologie Consumption optimization technology |
| 05/30/2012 | CN202250376U Piston intake guide mechanism for rotating cylinder engine |
| 05/29/2012 | US8186316 Opposite radial rotary-piston engine of choronski-modification |
| 05/17/2012 | US20120118261 Axial-piston engine, method for operating an axial-piston engine, and method for producing a heat exchanger of an axial-piston engine |
| 05/16/2012 | DE102010051299A1 Axial piston combustion engine has multiple engine cylinders, in which engine piston is longitudinally moved, where engine pistons are designed as tandem piston |
| 05/09/2012 | CN202215352U Counter-rotating cylinder type rotor engine having balancing weight |
| 04/26/2012 | WO2012052518A1 Constant-volume internal combustion engine |
| 04/12/2012 | WO2011066326A3 Compact, high-efficiency integrated resonant power systems |
| 04/05/2012 | WO2012044185A1 An engine usable as a power source or pump |
| 04/05/2012 | CA2849395A1 An engine usable as a power source or pump |
| 03/28/2012 | CN102392735A Rotary cylinder piston type engine |
| 03/21/2012 | CN102383923A Annular serial air cylinder piston type engine |
| 03/21/2012 | CN102383922A Rotatable cylinder piston type internal combustion engine |
| 03/15/2012 | WO2012032552A1 "rotary internal combustion engine with reducer and pistons that control the cycle" |
| 01/17/2012 | US8096103 External combustion engine with a general wheel rotation power motor |
| 01/12/2012 | WO2012004630A1 Internal combustion engine |
| 01/12/2012 | CA2804091A1 Internal combustion engine |
| 12/29/2011 | US20110315116 Engine |
| 12/14/2011 | CN102278199A 转轮旋缸活塞共轨发动机 Spin the wheel cylinder piston common rail engine |
| 12/08/2011 | WO2011152812A1 Rotary piston engine |
| 12/08/2011 | CA2801428A1 Rotary piston engine |
| 12/07/2011 | CN102269054A 一种转子发动机壳体及转子发动机 Rotor engine casing and rotor engine |
| 12/07/2011 | CN102269053A 一种转子发动机及其使用方法 Rotor engine and method of use |
| 11/02/2011 | CN101649777B Rotary cylinder engine |
| 08/17/2011 | EP1846646B1 Rotor-piston internal combustion engine |
| 08/04/2011 | US20110186009 PhanNam Engine |
| 08/02/2011 | US7987823 Hybrid piston/rotary engine |
| 07/29/2011 | CA2696343A1 Two cycle two cylinder rotary engine |
| 06/22/2011 | CN201874679U Elliptic track-groove redirection connecting-rod piston type rotating engine |
| 06/14/2011 | CA2674151C Two-stroke engine |
| 06/03/2011 | WO2011066326A2 Compact, high-efficiency integrated resonant power systems |
| 05/11/2011 | CN201826950U Rotor engine |
| 05/10/2011 | US7938097 Low speed valveless horizontally opposed piston rotary internal combustion engine |
| 05/05/2011 | WO2011016051A3 Engine with mileage increase technology |
| 04/27/2011 | CN102032043A Transmission mechanism and rotary engine thereof |
| 04/20/2011 | EP2312121A1 Internal combustion engine with rotating cylinders |
| 04/20/2011 | CN201802488U Rotor motor and piston connection rod assembly thereof |
| 04/20/2011 | CN201802483U Rotor engine casing and rotor engine |
| 04/20/2011 | CN201802482U Rotor engine and rotor part thereof |