| Patents for F02B 53 - Internal-combustion aspects of rotary-piston or oscillating-piston engines (4,415) |
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| 01/21/1993 | WO1993001395A1 Oscillating piston engine |
| 01/20/1993 | EP0523129A1 A rotary engine |
| 01/20/1993 | CN1068171A Combined rotary type ic engine |
| 01/07/1993 | EP0521540A1 Piston rocket |
| 12/30/1992 | EP0371022B1 Compound rotary internal combustion engine |
| 12/23/1992 | CN2125709U Compound rotary internal-combustion engine |
| 12/23/1992 | CN1067293A Internal combustion engine with three-ring rotationary rotor |
| 12/23/1992 | CN1019592B Internal combustion engine with swing piston |
| 12/17/1992 | DE4226547A1 Combustion gas generator for in/direct drive of piston engine - has piston compressor head formed by movable intermediate piston, moving on cylinder |
| 12/17/1992 | DE4119622A1 Planetary piston IC engine - has housing-fastened expansion-chamber, open to rotary piston, with rotating filler channel, to feed combustion gas to expansion chamber |
| 12/16/1992 | EP0510125A4 Rotary internal combustion engine |
| 12/10/1992 | WO1992021867A1 A continuous stroke cycle, rotary engine |
| 12/10/1992 | DE4118938A1 Rotary swing piston engine - has pistons which perform working stroke with each rotation of driving drum |
| 12/08/1992 | US5168846 Rotary engine with variable displacement |
| 12/02/1992 | EP0515841A1 Method for the controlled supply of an additive into the fuel stock of a vehicle combustion engine |
| 11/25/1992 | EP0514955A2 Improved rotary vee engine |
| 11/25/1992 | EP0514954A2 Rotary vee engine |
| 11/24/1992 | US5165238 Continuous external heat engine |
| 11/19/1992 | EP0513877A2 Improved rotary vee engine |
| 11/19/1992 | EP0513876A2 Rotary vee engine |
| 11/18/1992 | CN1066318A Combination type rotary blade engine |
| 11/12/1992 | WO1992016728A3 Rotary device with a toric chamber |
| 11/05/1992 | DE4222000A1 Rotary-piston engine for vacuum, injection or diesel motors - has discs in separate housings on common shaft with central bearing and incorporating pistons |
| 11/05/1992 | DE4213858A1 Rotary-piston engine - has top regulator receiving piston and turning through semicircle with it before combustion and exit |
| 10/28/1992 | EP0510125A1 Rotary internal combustion engine. |
| 10/15/1992 | WO1992017693A1 Dual compression and dual expansion internal combustion engine and method therefor |
| 10/15/1992 | WO1992017048A2 Energy transmission mechanism in internal combustion engine of new type |
| 10/13/1992 | US5154149 Rotary motor/pump |
| 10/06/1992 | US5152381 Multiple fail operational rotary actuator with series mounted motor stages |
| 10/06/1992 | US5152254 Internal combustion engine for vehicles |
| 10/01/1992 | WO1992016728A2 Rotary device with a toric chamber |
| 10/01/1992 | DE4110042A1 Kolbenmotor Piston engine |
| 09/17/1992 | WO1992015777A1 Rotary piston engine |
| 09/17/1992 | DE4212692A1 IC engine with ring cylinder - is divided into segments, with combustion, prepression and after-expansion chambers formed by pistons |
| 09/15/1992 | US5147193 Power conversion machine with pistons rotating in pairs relative to each other in a spherical housing |
| 09/03/1992 | WO1992014909A1 Rotary piston internal combustion engine |
| 09/02/1992 | EP0500597A1 A rotary fluid engine. |
| 09/02/1992 | CN1018079B Piston internal combustion engine |
| 08/26/1992 | CN1063922A Connected-cavity internal combustion engine |
| 08/19/1992 | CN2113349U Vane rotor engine |
| 08/19/1992 | CN1063742A Flexible rotator ingine |
| 08/18/1992 | US5138994 Supercharged rotary piston engine |
| 07/28/1992 | US5133317 Rotary piston engine |
| 07/22/1992 | CN1062953A Double-cylinder cam-type rotor engine |
| 07/21/1992 | US5131359 Rotating head and piston engine |
| 07/07/1992 | US5127377 Rotary machine with oval piston in triangular chamber |
| 07/07/1992 | CA1304692C Rotary internal combustion engine |
| 06/30/1992 | US5125379 Rotary engine |
| 06/24/1992 | CN1062188A Composite low pressure difference power machine |
| 06/23/1992 | US5123820 Pressure assisted apex seal with stepped slot |
| 06/16/1992 | US5121721 Rotary engine |
| 06/10/1992 | EP0489208A1 Rotary engine, pump or compressor, with triangular cylinder |
| 06/09/1992 | US5119778 Tuned intake air system for a rotary engine |
| 06/04/1992 | DE4037617A1 Stirling engine with reciprocating piston - incorporates, uses rotors to transport gas from hot to cold heat exchangers |
| 06/03/1992 | CN2106225U Rotor engine |
| 06/03/1992 | CN2106224U Full cycle rotary piston type internal-combustion engine |
| 05/27/1992 | CN2105562U Compression conversion internal combustion engine |
| 05/21/1992 | DE4036170A1 Generation of mechanical energy - uses rotating engine with split circular channel and magnetic piston couplings |
| 05/20/1992 | EP0485667A1 Method for converting heat into work |
| 05/20/1992 | EP0485465A1 Toroidal hyper-expansion rotary engine, compressor, expander, pump and method. |
| 05/12/1992 | US5112204 Oscillatory rotating engines with rotor speed control |
| 05/07/1992 | DE4035151A1 Rotary chamber engine - has radially movable seals, to form variable vol. chamber |
| 05/03/1992 | CA2054783A1 Rotary machine |
| 04/19/1992 | CA2027958A1 Rotary internal combustion engine |
| 04/15/1992 | EP0456705A4 Compression/combustion assembly |
| 04/15/1992 | CN2101764U Birotor type engine |
| 04/09/1992 | DE4031272A1 IC engine with ring-shaped cylinder - works with at least two pistons, one of which is connected via connecting disc to central shaft |
| 04/07/1992 | US5101782 Rotary piston engine with slide gate |
| 03/31/1992 | US5100309 Cooling medium pump of a rotary piston internal combustion engine |
| 03/25/1992 | EP0277252B1 Curved cylinder engine |
| 03/18/1992 | EP0307417B1 Rotating piston machine |
| 03/18/1992 | CN1059583A Composite engine with elliptical slideway |
| 03/12/1992 | DE4029144A1 Rotary-type IC engine - incorporates combustion chamber in which fuel burns continuously |
| 03/10/1992 | US5094205 Scroll-type engine |
| 03/10/1992 | US5094204 Stratified charge injection for gas-fueled rotary engines |
| 03/05/1992 | WO1992003640A1 One-stroke internal combustion engine and applications |
| 03/04/1992 | CN1059185A Snail shell type unsymmetrical internal combustion engine |
| 03/03/1992 | US5092752 Seal assembly for a rotary device |
| 02/13/1992 | DE4025406A1 Rotary compressor or IC engine - has housing containing working rotor and synchronous rotor with fixed rotation ratio |
| 02/12/1992 | CN2095942U Double rotor engine |
| 02/12/1992 | CN1058633A Internal combustion engine with fractional gear transmission and arc-cylindrical rotating piston |
| 02/11/1992 | US5086732 Four stroke concentric oscillating rotary vane internal combustion engine |
| 02/06/1992 | DE4024270A1 Rotary piston IC engine - has two=stroke working during rotation of eccentric shaft |
| 02/05/1992 | EP0469415A2 Sealing strip arrangement for a rotary piston engine |
| 02/05/1992 | CN1058452A Three-potential engine and oil-spraying atomizer thereof |
| 02/01/1992 | CA2045062A1 Pressure assisted apex seal with stepped slot |
| 01/30/1992 | DE4130533A1 Rotary IC engine piston - has helical end face which matches face of flange of output shaft |
| 01/28/1992 | US5083540 Rotary engine |
| 01/28/1992 | CA1294891C Energy-efficient turbine apparatus |
| 01/23/1992 | WO1992001148A1 Induction system for rotary engines, 2-stroke and other engines without valves, with translating throttle shutters |
| 01/23/1992 | DE4014279A1 Four-stroke, rotary vane IC engine - has vane rotating in one direction only in circular, radial, working chamber |
| 01/21/1992 | US5081974 Fuel control apparatus of an engine |
| 01/15/1992 | EP0465962A1 Sealing system for rotary internal combustion machine |
| 01/10/1992 | CA2044842A1 Multi-piece tilted apex seal assembly |
| 01/09/1992 | DE4021148A1 Four-stroke rotary piston IC engine - has concentric movement of all mechanical parts giving optimum formation of piston displacement and combustion chamber |
| 12/31/1991 | US5076228 Rotary vane engine |
| 12/24/1991 | US5074253 Volumetric displacement machine with double-action oscillating pistons |
| 12/17/1991 | US5072705 Rotary engine and method |
| 12/12/1991 | WO1991019088A1 Rotary piston internal combustion engine |
| 12/05/1991 | DE4017760A1 Rotary piston IC engine - has at least one twin piston system with two pistons rotating symmetrically round common axis |