| Patents for F02B 55 - Internal-combustion aspects of rotary pistons; Outer members for co-operation with rotary pistons (1,252) |
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| 02/15/1977 | US4008001 Rotor for rotary internal combustion engine |
| 02/01/1977 | US4005955 Rotary internal combustion engine with liquid cooled piston |
| 01/18/1977 | US4003346 Rotary piston internal combustion engine |
| 01/04/1977 | US4000721 Rotary internal combustion engines |
| 12/28/1976 | US3999905 Rotary mechanism |
| 11/30/1976 | US3994642 Rotary piston internal combustion engine of the trochoidal type |
| 11/16/1976 | US3991722 Rotary engine of the type cooled by an air-fuel mixture intake |
| 11/09/1976 | US3990819 Seals for rotary mechanisms |
| 11/09/1976 | US3990817 Rotary combustion engine having a modified trochoid |
| 11/09/1976 | US3990410 Rotary engine with rotary valve |
| 11/02/1976 | US3989423 Piston of light metal for a rotary piston combustion engine |
| 11/02/1976 | US3989011 Constant pressure heating vane rotary engine |
| 10/26/1976 | US3988079 Two-piece rotor for wankel engines |
| 10/26/1976 | US3987758 Radial piston engine |
| 09/21/1976 | US3981688 Wear resistance |
| 09/14/1976 | US3980412 Casing seal means for a rotary piston engine |
| 08/24/1976 | US3976404 Lubrication of compression seals in rotary engines |
| 08/24/1976 | US3976036 Rotary piston engines |
| 08/24/1976 | US3976035 Rotary engine and method of operation |
| 08/10/1976 | US3973526 Rotary combustion engine |
| 07/20/1976 | US3970527 Aluminum housing |
| 07/13/1976 | US3969048 Rotary piston internal combustion engine of trochoidal construction |
| 07/06/1976 | US3967594 Rotary power unit |
| 07/06/1976 | US3967593 Rotary piston internal combustion engines |
| 07/06/1976 | US3967592 Rotary piston engine equipped with an improved air or fuel injection opening |
| 06/29/1976 | US3965869 Asymmetrical divider block for a rotary displacement engine |
| 06/22/1976 | US3964843 Seal means for rotary piston engine |
| 06/22/1976 | US3964445 Water cooling system - Wankel engine |
| 06/22/1976 | US3964442 Internal combustion engine |
| 06/01/1976 | US3960115 Stratified charge rotary engine (method of operation) |
| 05/25/1976 | US3958906 Rotary engine with modified trochoidally shaped inner wall |
| 05/25/1976 | US3958538 Gaseous ignition system for internal combustion engine |
| 05/18/1976 | US3957021 Precombustion chamber rotary piston diesel engine |
| 05/11/1976 | US3955539 Rotary piston internal combustion engine |
| 05/04/1976 | US3954356 Rotary engine rotor housing having coolant cooled bridged exhaust port |
| 05/04/1976 | US3954088 Combustion chamber arrangements for rotary compression-ignition engines |
| 04/20/1976 | US3951112 Rotary internal combustion engine with rotating circular piston |
| 04/13/1976 | US3950116 Engine housings |
| 04/06/1976 | US3948309 Composite rotor housing with wear-resistant coating |
| 03/30/1976 | US3947159 Split bearing for wankel engine |
| 03/23/1976 | US3945776 Structure for preventing oil leakage in a rotary engine |
| 03/23/1976 | US3945346 Rotary diesel engine |
| 03/09/1976 | US3942919 Rotary piston type engine |
| 03/09/1976 | US3942917 Housing for circular piston combustion engine of trochoid type and method of producing the same |
| 02/24/1976 | US3940104 Mold for die-cast rotor housing for rotary combustion engines |
| 02/10/1976 | US3937602 Engine housings |
| 02/10/1976 | US3937266 Method for application of wear-resistant coating |
| 02/10/1976 | US3937187 Toroidal cylinder orbiting piston engine |
| 02/10/1976 | US3937185 Staggered configuration for wankel engine spark plugs |
| 02/03/1976 | US3935841 Rotary internal combustion engine |
| 02/03/1976 | US3935840 Rotary engine |
| 01/27/1976 | US3934321 Rotor housing for a rotary piston type engine and method for manufacturing the same |