| Patents for F02B 53 - Internal-combustion aspects of rotary-piston or oscillating-piston engines (4,415) |
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| 04/22/1998 | EP0837219A1 Rotary piston engine |
| 04/22/1998 | CN1179507A Internal combustion rotor engine |
| 04/21/1998 | CA2077275C Engine/pump with eccentric elliptical gear mechanism |
| 04/15/1998 | EP0835362A1 Rotary positive-displacement fluid machine |
| 04/14/1998 | US5738065 Variable rotary engine |
| 04/02/1998 | WO1998013583A1 Oscillating piston engine |
| 03/26/1998 | WO1998012419A2 Radial vane rotary internal combustion engine |
| 03/25/1998 | EP0830499A1 Rotary engine |
| 03/25/1998 | EP0734486B1 Rotary engine |
| 03/18/1998 | EP0801709A4 Orbiting piston combustion engine |
| 03/17/1998 | US5727518 Alternating piston rotary engine with unidirectional transmission devices |
| 03/17/1998 | US5727517 Equivalence-boosted sliding vane internal combustion engine |
| 03/12/1998 | WO1998010180A1 Protruding piston rotary engine |
| 03/12/1998 | WO1998010172A2 Vaned rotary engine with regenerative preheating |
| 03/12/1998 | DE19635976A1 External combustion heat engine with rotating piston |
| 03/12/1998 | CA2236573A1 Vaned rotary engine with regenerative preheating |
| 03/11/1998 | CN1175660A Male rotor rotary engine |
| 03/03/1998 | US5722361 Internal combustion engine with pistons that rotate about a center line |
| 02/24/1998 | US5720251 Rotary engine and method of operation |
| 02/11/1998 | CN1172898A 旋转发动机 Rotary engine |
| 02/03/1998 | US5713210 Sliding-blade refrigeration apparatus and method |
| 01/27/1998 | US5711268 Rotary vane engine |
| 01/22/1998 | DE19628785A1 Rotary piston engine |
| 01/21/1998 | EP0819835A1 Reversible converter of direction of movement and device for displacing volumes using said converter |
| 01/15/1998 | WO1998001657A1 Rotary engine |
| 01/15/1998 | DE19639503C1 Rotary piston engine |
| 01/14/1998 | EP0818604A2 Rotary machine |
| 01/06/1998 | US5704332 Rotary engine |
| 12/31/1997 | WO1997049899A1 Internal combustion rotary engine with constant volume (daisy system) |
| 12/24/1997 | WO1997048885A1 A rotary internal combustion engine and rotary internal combustion engine cycle |
| 12/18/1997 | DE19621051A1 Rotary piston engine |
| 12/16/1997 | CA2045400C Power conversion machine with pistons rotating in pairs relative to each other in a spherical housing |
| 12/10/1997 | CN2270121Y Direct rotary IC engine |
| 12/10/1997 | CN2270120Y One-stroke opposition-explosion free piston engine |
| 12/03/1997 | CN2269469Y Double head piston rotary engine |
| 11/27/1997 | DE19643183A1 Measurement device for determination of magnetic field changes |
| 11/20/1997 | WO1997043519A1 Integral circular rotation internal combustion engine |
| 11/20/1997 | DE19619435A1 Internal combustion engine with annular piston |
| 11/13/1997 | WO1997042398A1 Rotary piston internal combustion engine |
| 11/12/1997 | EP0805916A1 Continuous operating mode with the most isothermal possible compression for rotary piston heat engines |
| 11/12/1997 | CN1164610A Principle of rotor explosive motor |
| 11/11/1997 | US5685269 High speed rotary engine and ignition system |
| 11/05/1997 | CN2266653Y Rotoplug & rotor engine |
| 10/28/1997 | US5681157 Rotary combustion unit for rotary internal combustion engine |
| 10/22/1997 | EP0801709A1 Orbiting piston combustion engine |
| 10/09/1997 | WO1997037113A1 Rotary vane engine |
| 10/08/1997 | CN2264254Y Swing piston 4-stroke engine |
| 10/01/1997 | CN2263713Y Unequal distance stroke energy storage push rotor gasoline explosive motor |
| 10/01/1997 | CN1160811A Vane rotor engine |
| 09/24/1997 | EP0485465B1 Toroidal hyper-expansion rotary engine, compressor, expander, pump and method |
| 09/24/1997 | CN2263201Y Cross rotary reciprocating engine |
| 09/18/1997 | WO1997034078A1 Internal combustion rotary engine |
| 09/16/1997 | US5666912 Internal combustion engine |
| 09/10/1997 | CN2262102Y 内燃式涡轮转子发动机 Internal combustion engine turbine rotor |
| 08/27/1997 | EP0680551B1 Method of operating an internal combustion engine |
| 08/27/1997 | CN1158152A Rotary piston type internal combustion engine |
| 08/27/1997 | CA2170295A1 Flywheel piston engine |
| 08/20/1997 | CN2260170Y Rotary wheel type fluid power converting device |
| 08/06/1997 | EP0787251A1 Internal combustion engine |
| 08/06/1997 | CN1156213A Rotary wheel type fluid function changing device |
| 07/30/1997 | CN1155618A Engine with rotary piston and cam central control and bypass compression |
| 07/23/1997 | EP0785348A1 Rotary piston type internal combustion engine |
| 07/23/1997 | CN1155038A Inside rotor IC engine |
| 07/23/1997 | CN1155037A Double-phase symmetrical swinger engine |
| 07/10/1997 | DE19600343A1 Rotary piston IC engine e.g. for Stirling engine with heating and cooling devices for working gases |
| 07/09/1997 | CN1153865A Rotating-piston oil-burning engine |
| 07/08/1997 | US5645027 Orbiting piston combustion engine |
| 07/02/1997 | EP0781370A1 Internal combustion engine |
| 06/26/1997 | DE19644446A1 Rotary piston engine with reduced fuel and oil usage |
| 06/26/1997 | DE19547347C1 Rotary-piston internal-combustion engine |
| 06/25/1997 | CN2256939Y Bidirectional cam engine |
| 06/24/1997 | US5640938 Rotary engine with post compression magazine |
| 06/18/1997 | CN1152072A Rotary engine |
| 06/10/1997 | US5636610 Multi-chamber rotary piston-engine |
| 06/05/1997 | DE19624540A1 Rotary internal combustion engine |
| 06/04/1997 | EP0776411A1 Rotary engine and method |
| 06/04/1997 | EP0711379B1 Internal combustion engine with pistons that rotate around a centre line |
| 05/28/1997 | EP0775814A1 Four cycle rotary engine |
| 05/28/1997 | EP0746678A4 Alternating piston rotary engine with ratchets |
| 05/21/1997 | CN2254483Y Blade-rotor motor |
| 04/30/1997 | CN1148661A Unequidistance stroke accumulating straight pushing rotor gasoline internal combustion engine |
| 04/23/1997 | CN2252890Y Internally-sliding rotary motor |
| 04/23/1997 | CN1034687C Rotary-poiston internal combustion engine with compressed-air burning in different cylinders |
| 04/22/1997 | US5622149 High-power rotary engine with varaiable compression ratio |
| 04/22/1997 | US5622052 Double-flow hydrostatic radial piston engine with axial flow, thrust compensation, and shaft bearing |
| 04/17/1997 | DE19617298A1 Rotary piston IC-engine or motor |
| 04/16/1997 | EP0719381A4 Internal combustion engine |
| 04/16/1997 | EP0625243B1 Rotary engine |
| 04/16/1997 | CN1147591A Eccentric-rotor rotating-plate internal combustion engine |
| 04/09/1997 | EP0766777A1 Non-contact rotary vane gas expanding apparatus |
| 04/02/1997 | CN2251048Y Rotary piston fuel engine |
| 03/27/1997 | WO1997011258A1 Rotary internal combustion engines |
| 03/20/1997 | WO1997010419A1 Internal combustion rotary engine with variable compression ratio |
| 03/19/1997 | CN2249826Y Engine |
| 03/12/1997 | CN1144878A Completely rotary engine |
| 03/06/1997 | DE19532737A1 Internal combustion engine with ellipsoidal piston |
| 02/25/1997 | US5605124 Rotary screw internal combustion engine |
| 02/20/1997 | DE19517879A1 Rotary piston engine with combustion chamber between expander and compressor |
| 02/19/1997 | CN1143152A Phase difference elliptic stator motor |
| 02/19/1997 | CN1143151A Baffle-plate misplacement elliptical stator motor |