| Patents for F02B 55 - Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons (1,252) |
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| 03/31/2010 | CN101684745A Rotary type internal combustion engine with two corner pistons |
| 03/17/2010 | CN101675224A 正位移旋转叶片发动机 Positive displacement rotary vane engine |
| 03/17/2010 | CN101672217A Reed-type flexible rotor engine |
| 03/11/2010 | WO2010005713A3 Planetary rotary engine |
| 03/03/2010 | CN201416478Y Rotating multi-cavity internal combustion engine |
| 02/18/2010 | WO2010017778A1 Rocking-valve rotary-cylinder type capacity-variable mechanism and rotary engine associated |
| 02/17/2010 | CN201407096Y 转子发动机 Rotary engine |
| 01/20/2010 | CN201386573Y Rotary compressing expansion machine of triangular piston |
| 01/14/2010 | WO2010005713A2 Planetary rotary engine |
| 01/14/2010 | CA2728192A1 Planetary rotary engine |
| 12/23/2009 | EP2134945A2 Positive displacement rotary vane engine |
| 12/23/2009 | CN100572772C Circular arc tooth cycloid rotor engine |
| 12/10/2009 | WO2009148347A1 Rotary internal combustion engine |
| 12/09/2009 | CN100567717C Engine with impacting rotor |
| 11/25/2009 | CN101586493A Rotary piston engine |
| 11/18/2009 | CN201347797Y Cylinder body mechanism in circular motion piston type internal combustion engine |
| 11/18/2009 | CN201347795Y Circular motion piston type internal combustion engine |
| 11/11/2009 | CN201344064Y Internal combustion engine with rotary plug wheel |
| 10/28/2009 | CN100554663C Ring cylinder intelligent piston internal combustion engine |
| 10/21/2009 | CN101560913A Rotor sliding vane type engine |
| 10/07/2009 | CN101550868A A piston rotary type engine pertains to the engine |
| 09/30/2009 | CN101545399A Rotary multi-cavity internal-combustion engine |
| 09/24/2009 | DE102008015031A1 Housing for planetary piston engine, has center part arranged between two lateral units, where center part has sectors, which are separated from each other and spaced in circumferential direction |
| 09/23/2009 | CN101539053A 转子发动机 Rotary engine |
| 09/16/2009 | EP2100017A1 Rotary engine with cylinders of different design and volume |
| 09/16/2009 | CN101532423A Double-rotor four-stroke spark ignition internal combustion engine |
| 09/16/2009 | CN100540864C Rotary engine |
| 09/16/2009 | CN100540850C Piston for an internal combustion engine |
| 09/09/2009 | CN101526027A Omega-type engine without crankshaft |
| 08/27/2009 | WO2009103210A1 Ratchet-wheel type rotary engine |
| 08/20/2009 | WO2009101385A1 Rotary piston internal combustion engine |
| 08/19/2009 | CN101509420A Major-minor cylinder combined rotor engine |
| 08/19/2009 | CN101509419A Constant volume type piston rotor engine |
| 08/19/2009 | CN100529356C Rotor internal combustion engine |
| 08/12/2009 | CN101506494A Vane-type internal combustion engine |
| 07/08/2009 | CN100510322C Concave triangle rotor engine |
| 06/25/2009 | DE102007057913A1 Rotating piston combustion engine comprises an outer ring pressed into a piston with openings formed in a cylindrical contact surface between the piston and an outer ring |
| 06/18/2009 | WO2009075604A1 Reciprocal screw unit for the movable positive displacement working chambers or for using the pressure of a compressed liquid and/or gas working medium and a method for producing a spherical spiral wall of the spherical screw of the reciprocal screw unit |
| 06/04/2009 | DE102008026920A1 Rotary piston combustion engine, has end side part designed as two-parts, where end side part comprises end-side path part that is bent toward piston, and end-side covering part that is bent away from piston |
| 05/27/2009 | CN201246187Y Valve swinging rotary cylinder type positive-displacement mechanism and rotary engine thereof |
| 05/07/2009 | WO2009056850A1 Power supply systems |
| 05/06/2009 | CN100485177C Split rotory piston IC engine |
| 05/06/2009 | CN100485176C Rotating spherical engine |
| 04/30/2009 | WO2009054746A1 Rotary internal combustion engine and the operational cycle thereof |
| 04/29/2009 | CN101418719A Wobble plate stroke variable internal combustion engine |
| 04/29/2009 | CN101418718A Rotor engine |
| 04/29/2009 | CN101418717A Annular cylinder cock internal combustion engine |
| 04/23/2009 | WO2009049467A1 A ring shaped cylinder combustion engine |
| 04/22/2009 | EP2050941A1 Rotary piston engine and method for designing the same |
| 04/22/2009 | CN101413434A Double-cylinder circular ring type cylinder internal combustion engine |
| 04/15/2009 | CN100478552C All-rotation engine |
| 04/08/2009 | CN101403336A Internal combustion type micro-blade rotor engine |
| 04/08/2009 | CN101403335A Rotary piston engine |
| 04/08/2009 | CN100476171C Engine with movable door type rotor |
| 04/01/2009 | CN201215038Y Rotor engine |
| 04/01/2009 | CN101397934A Rotary piston combustion engine without counter force having pulling and inserting type baffle |
| 03/26/2009 | US20090078231 Energy transfer machine |
| 03/26/2009 | CA2603152A1 Valve systems for turbomachines |
| 03/25/2009 | CN101392680A Water-oil hybrid circle rotor engine |
| 03/05/2009 | WO2009000844A3 Rotary piston combustion engine |
| 03/04/2009 | CN201202526Y Vane rotor engine |
| 02/24/2009 | US7493885 Asymmetric complete expansion rotary engine cycle |
| 02/19/2009 | WO2009022888A1 Rotary-vane internal combustion engine |
| 02/11/2009 | CN101363361A Ball rotor internal combustion engine |
| 02/11/2009 | CN100460641C Backpressure laminae mechanism of closure burning rotary laminae engine |
| 02/09/2009 | CA2638428A1 Continuous otto piston elliptical engine |
| 01/21/2009 | CN201184237Y Rotary-piston type internal combustion engine |
| 01/21/2009 | CN101349192A Four-cylinder spherical internal combustion engine main body mechanism |
| 01/21/2009 | CN100453779C Turbine rotor engine |
| 01/15/2009 | WO2009008743A1 Circular run gear-piston engine |
| 01/15/2009 | WO2008109704A3 Positive displacement rotary vane engine |
| 01/07/2009 | CN101338687A Shaking valve rotary cylinder type variable displacement device and its rotary engine |
| 12/31/2008 | CN101333962A Novel rotary piston type engine |
| 12/24/2008 | CN201170133Y Engine with piston capable of being recycled |
| 12/24/2008 | CN100445530C Crankless disc type composite internal combustion engine |
| 12/17/2008 | CN201165900Y Four-cylinder spherical internal combustion engine body mechanism |
| 12/17/2008 | CN100443706C Two cylinders or multicylinders four-stroke internal-combustion engine of single or multiple cascaded swing pistons |
| 12/10/2008 | CN100441840C Rotary engine |
| 12/03/2008 | CN100439675C Rotary engine system |
| 11/26/2008 | CN201155360Y Ratchet type rotor engine |
| 11/19/2008 | CN201152195Y Rotary internal combustion engine |
| 11/19/2008 | CN201152194Y Direct-spraying thrust force rotor engine |
| 11/13/2008 | US20080276902 Rotary Piston Machine Comprising Two Piston Mounts Arranged on an Axle |
| 10/28/2008 | US7441534 Rotary engine system |
| 10/22/2008 | CN101289961A Rotor engine |
| 10/22/2008 | CN101289960A Rotor engine |
| 09/17/2008 | CN101265839A Rotor engine |
| 09/12/2008 | WO2008109704A2 Positive displacement rotary vane engine |
| 09/12/2008 | CA2680200A1 Positive displacement rotary vane engine |
| 09/10/2008 | CN101260829A Gear alternate-dent control type rotor engine |
| 09/09/2008 | US7421982 Independent combustion chamber-type internal combustion engine |
| 09/03/2008 | CN101255817A Environment protection type internal combustion engine |
| 09/03/2008 | CN101255816A Rotary internal combustion engine |
| 09/03/2008 | CN101255815A Double-screw type internal combustion engine |
| 08/27/2008 | CN201106486Y Novel compound gear rotary piston engine |
| 08/21/2008 | US20080196688 Internal Combustion Engine |
| 08/20/2008 | CN201103461Y Combustion chamber coupling natural gas car engine |
| 08/20/2008 | CN201103460Y Non-dead point five-point surface contact sealing convex triangular rotor engine |
| 08/20/2008 | CN101245732A Ratchet type rotor engine |
| 08/12/2008 | CA2425487C Hinged rotor internal combustion engine |