| Patents for F02B 73 - Combinations of two or more engines, not otherwise provided for (548) |
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| 10/28/1993 | WO1993021434A1 Rotary internal combustion engine |
| 10/07/1993 | DE4210382A1 Combination IC engine with active parts of two engines - has two cylinder groups of same/different capacity, for simultaneous or alternating working |
| 08/31/1993 | US5239830 Plural engine power producing system |
| 08/03/1993 | CA1320853C Crankshaft phasing mechanism |
| 07/20/1993 | US5228294 Rotary internal combustion engine |
| 06/30/1993 | CN1021469C Multifunctional semi-rotor internal combustion engine |
| 06/24/1993 | WO1993012334A1 Internal combustion engines |
| 05/05/1993 | CN2131989Y Double action free piston-power locomotive crew |
| 10/20/1992 | US5156122 Self-synchronizing 720 degree clutch for partial crankshafts of split environmental engines |
| 10/15/1992 | WO1992017693A1 Dual compression and dual expansion internal combustion engine and method therefor |
| 07/23/1992 | DE4206518A1 Twin-cylinder IC engine - is balanced using two counter-rotating crankshafts geared together |
| 06/25/1992 | WO1992010652A1 Combustion engine combination |
| 05/21/1992 | DE4036492A1 Self-synchronising 720 deg. coupling - is for part crankshafts of split-environment engines, and includes internal control gear of screw wheel form |
| 05/13/1992 | EP0484589A1 Piston engine with 2 banks arranged in a V-configuration |
| 04/21/1992 | US5105775 Two-stroke engine with controlled pneumatic injection |
| 04/02/1992 | WO1992005348A1 Internal combustion engine with motorcycle thermal parts |
| 03/17/1992 | US5095871 Reciprocating engine with two cylinder banks arranged in a V-shape |
| 03/03/1992 | US5092293 Crankshaft-systems for split environmental engines and multi-split environmental engines |
| 01/21/1992 | US5081961 Internal combustion engine with rotary exhaust control |
| 12/19/1991 | DE4018943A1 Piston engine for use in regenerative cycles - produces optimum time slope using rotating eccentric transmission |
| 09/19/1991 | WO1991014088A1 Drive assembly, in particular for driving a vehicle |
| 09/11/1991 | EP0445407A1 Drive unit, especially for driving vehicles |
| 07/03/1991 | EP0435730A1 Two-stroke engine with controlled pneumatic injection |
| 07/03/1991 | EP0434697A1 Crankshaft phasing mechanism |
| 06/06/1991 | DE4037272A1 Reciprocating piston IC engine - has two crankshafts, and extra space for accessory drives |
| 05/16/1991 | WO1991006751A1 Combustion chamber |
| 04/11/1991 | DE3931644A1 Four-stroke IC engine - consists of two V-six units coupled together by bevel gears |
| 04/02/1991 | US5004962 Automatic motor synchronizer |
| 04/02/1991 | US5003935 Internal combustion |
| 02/20/1991 | CN1011725B Engine plant comprising a plurality of turbocharged combustion engines |
| 02/12/1991 | US4992669 Modular energy system |
| 12/13/1990 | WO1990015234A1 Power installation for a vehicle |
| 11/29/1990 | DE4015701A1 Vehicular drive with piston engine and electric machine - reduces low-speed irregularity of engine by operating machine alternately as booster motor and as brake |
| 10/31/1990 | CN1046583A Combination engine |
| 09/18/1990 | US4957072 Balanced radial engine |
| 09/11/1990 | US4955328 Leading piston engine with two cylinders interconnected through a transfer port |
| 07/03/1990 | US4938175 Engine, particularly for ultralight aircraft |
| 05/02/1990 | CN1041813A Multifunctional semi-rotor internal combustion engine |
| 03/08/1990 | WO1990002255A1 Crankshaft phasing mechanism |
| 01/31/1990 | CN1006625B Supercharged marine diesel engine |
| 01/23/1990 | US4894995 Combined internal combustion and hot gas engine |
| 12/07/1989 | DE3824346A1 Internal combustion engine with two cylinder banks |
| 11/23/1989 | EP0343093A2 Internal combustion motor |
| 10/31/1989 | US4876992 Crankshaft phasing mechanism |
| 05/17/1989 | EP0316286A1 An engine particularly for ultralight aircraft |
| 05/03/1989 | CN1004066B Supercharged marine diesel engine |
| 04/18/1989 | US4822307 Warning device for a watercraft provided with a plurality of marine propulsion engines |
| 03/07/1989 | US4809506 Engine plant comprising a plurality of turbo-charged combustion engines |
| 02/07/1989 | CA1249728A1 Automotive power plant |
| 11/30/1988 | CN88102879A Engine plant comprising a plurality of turbocharged combustion engines |
| 11/29/1988 | US4787207 Multi-engine plant including turbocharged combustion engines |
| 11/24/1988 | DE3715750A1 Internal-Combustion Engine |
| 11/10/1988 | DE3713383A1 Internal combustion engine |
| 10/27/1988 | DE3711863A1 Multiple-engine installation for ships |
| 10/18/1988 | US4777917 Rotary valve engine with tandem power and supercharger sections |
| 09/06/1988 | US4768607 Freewheel flywheel transmission system |
| 09/01/1988 | DE3705045A1 Split motor |
| 08/02/1988 | US4760702 Supercharged marine diesel engine |
| 07/05/1988 | US4754606 Composite engine system |
| 05/03/1988 | US4741165 Twin engine Synchronizer |
| 02/02/1988 | US4722308 Engine with split crankshaft and crankshaft half disabling means |
| 01/19/1988 | US4719756 Supercharged marine diesel engine |
| 12/02/1987 | EP0247857A2 Rotary valve engine with tandem power and supercharger sections |
| 11/24/1987 | US4708669 Warning device for a watercraft provided with a plurality of marine propulsion engines |
| 10/28/1987 | CN87100987A Supercharged marine diesel engine |
| 10/22/1987 | DE3619351A1 Multi-split engine for motor vehicles with split crankshaft and engine transverse shaft for auxiliary unit drives |
| 09/09/1987 | EP0235390A1 Marine diesel engine assembly |
| 07/28/1987 | CA1224677A1 Diesel engine propulsion unit arrangement in a vessel sailing in open waters and ice-breaking |
| 07/15/1987 | CN86106876A Multi-engine plant including turbocharged combustion engines |
| 05/21/1987 | WO1987003039A1 Two stroke diesel engine having complex piston |
| 05/05/1987 | US4662490 Clutch system for an internal combustion engine provided with a plurality of engine units |
| 01/27/1987 | US4638637 Vehicle propulsion plant |
| 12/23/1986 | US4630447 Regenerated internal combustion engine |
| 12/02/1986 | US4625583 Vehicle drive plant |
| 10/29/1986 | EP0199165A1 Supercharged diesel engine |
| 10/22/1986 | EP0198068A1 Rotary piston engine as an internal combustion engine for independent or in-line operation |
| 10/22/1986 | CN86102888A Supercharged marine diesel engine |
| 09/16/1986 | US4611466 Vehicle power system comprising an auxiliary engine in combination with the main vehicle engine |
| 08/19/1986 | US4606193 Freewheel flywheel transmission system |
| 06/18/1986 | EP0184685A2 Split-engine for motor-vehicles, with a divided crankshaft, and an engine cross-shaft for auxiliary-drives |
| 06/03/1986 | US4592311 Intake system for two-cycle multi-cylinder engines |
| 05/09/1986 | WO1986002699A1 Rotary piston engine as an internal combustion engine for independent or in-line operation |
| 05/06/1986 | US4586341 Twin engine synchronizer |
| 04/01/1986 | US4578955 Automotive power plant |
| 01/28/1986 | US4566279 Vehicle propulsion plant |
| 11/26/1985 | US4555003 Split engine clutch |
| 07/02/1985 | US4527071 Modular power plant for the combined production of electrical and thermal energy and installation comprising a plurality of modular power plants |
| 04/09/1985 | US4509474 Piston machine |
| 01/15/1985 | US4493190 Cooling system for an engine having a plurality of engine units |
| 11/13/1984 | US4481841 Multiple engine drive arrangement |
| 11/06/1984 | US4480612 Internal combustion engine provided with a plurality of power units |
| 10/30/1984 | US4479357 Method and apparatus for automatically synchronizing multiple engines |
| 09/25/1984 | US4472944 Diesel and electric hydraulic systems for transportation |
| 09/11/1984 | US4470379 Multi-cylinder engine |
| 08/08/1984 | EP0044313B1 Piston machine |
| 06/05/1984 | US4452043 Differential compound engine |
| 04/17/1984 | US4442805 Internal combustion engine provided with a plurality of power units |
| 04/03/1984 | US4439989 Internal combustion engine provided with a plurality of power units |
| 03/13/1984 | US4435961 Method and apparatus for automatically synchronizing multiple engines |
| 02/14/1984 | US4430862 Internal combustion engine for vehicles |