Patents for F02B 73 - Combinations of two or more engines, not otherwise provided for (548)
02/2004
02/12/2004US20040025826 Variable geometry engine, arranged from two identical internal combustion engines
08/2003
08/26/2003US6611748 Engine synchronization system
08/13/2003EP0938627B1 Internal combustion engine
07/2003
07/22/2003US6594998 Method and apparatus for an automotive power generating system
06/2003
06/10/2003CA2059395C Power transmission system for snowmobile
05/2003
05/30/2003WO2003044326A1 Method and apparatus for an automotive power generating system
05/22/2003US20030093996 Method and apparatus for an automotive power generating system
04/2003
04/01/2003US6539835 I-yoke mechanism
03/2003
03/27/2003WO2003024784A1 Power generating and propelling system of vessel
03/19/2003EP1086296B1 I-yoke mechanism
07/2002
07/11/2002US20020091480 Engine synchronization system
06/2002
06/06/2002WO2002044535A1 Internal combustion engine
04/2002
04/10/2002EP1194685A1 Torque balanced opposed-piston engine
02/2002
02/21/2002DE10036093A1 Combustion engine with two engine units with crankshafts which synchronously run in opposite directions with ratio of 1 is to 1, such that one crankshaft is mirror-image of other crankshaft
02/14/2002US20020017264 Compact internal combustion engine
12/2001
12/19/2001CN1076437C Vehicle motorization unit
10/2001
10/23/2001US6306056 Dual engine hybrid electric vehicle
08/2001
08/16/2001DE10004103A1 Reciprocating piston engine has shaft attached to piston and extending from one side of crankshafts to other, and support element is located on shaft end furthest from piston for symmetrical installation of connecting rods
06/2001
06/13/2001EP1105635A1 Dual-cylinder expander engine and combustion method with two expansion strokes per cycle
03/2001
03/28/2001EP1086296A1 I-yoke mechanism
03/20/2001US6202416 Dual-cylinder expander engine and combustion method with two expansion strokes per cycle
03/06/2001US6196181 Compact internal combustion engine
02/2001
02/20/2001US6189493 Torque balanced opposed-piston engine
01/2001
01/18/2001WO2001004473A1 Torque balanced opposed-piston engine
01/18/2001CA2376205A1 Torque balanced opposed-piston engine
10/2000
10/12/2000WO2000009879A9 Dual-cylinder expander engine and combustion method with two expansion strokes per cycle
09/2000
09/27/2000EP1039114A1 A combined system using a vaporous fuel mixture energy source and an internal combustion engine and method therefor
09/27/2000EP0885347B1 Modular engine
09/19/2000CA2266804A1 A combined system using a vaporous fuel mixture energy source and an internal combustion engine and method therefor
08/2000
08/22/2000US6105542 Modular engine
08/16/2000EP1028233A2 Combi power plant
08/01/2000US6095110 Internal combustion engine
05/2000
05/23/2000US6065440 Internal combustion engine with binary cylinder sizing for variable power output
03/2000
03/02/2000DE19839231A1 Drive system, especially for car has two engines coupled directly to drive shaft, each via clutch and further engines are connected in series behind
02/2000
02/24/2000WO2000009879A1 Dual-cylinder expander engine and combustion method with two expansion strokes per cycle
02/24/2000CA2340196A1 Dual-cylinder expander engine and combustion method with two expansion strokes per cycle
01/2000
01/20/2000WO2000003122A1 I-yoke mechanism
01/13/2000DE19927770A1 Multiple cylinder IC engine
01/13/2000DE19830867A1 Method of utilizing energy sources by pre-heater and re-heater
01/05/2000CN2357140Y 组合式发动机 Combined engine
12/1999
12/23/1999WO1999066182A1 Multiple-cylinder internal combustion engine
12/08/1999CN1238026A Internal combustion engine
11/1999
11/04/1999DE19819234A1 Twin coupled internal combustion engine
11/04/1999DE19819233A1 Reciprocating internal combustion engine
10/1999
10/26/1999US5970924 Arc-piston engine
09/1999
09/01/1999EP0938627A1 Internal combustion engine
06/1999
06/29/1999US5915365 Combined system using a vaporous fuel mixture energy source and an internal combustion engine and method therefor
06/15/1999US5911564 Control system for multiple engines
04/1999
04/07/1999CN2313053Y Straight-shaft swing-ring type horizontal engine
04/06/1999US5890365 Internal combustion engine constant speed variable volume coupling and operation process
01/1999
01/20/1999EP0892162A2 Dual compression and dual expansion internal combustion engine
12/1998
12/23/1998EP0885347A1 Modular engine
09/1998
09/15/1998US5806315 Internal combustion engine
07/1998
07/22/1998EP0663984B1 Integral motor
07/21/1998US5782659 Control for watercraft
06/1998
06/23/1998US5769039 V shaped multi-cylinder engine of crankcase compression type
06/02/1998US5758610 Air cooled self-supercharging four stroke internal combustion engine
05/1998
05/22/1998WO1998021458A1 Internal combustion engine
05/22/1998WO1998021456A1 Air-cooled self-supercharging four stroke internal combustion engine
04/1998
04/15/1998EP0835361A1 Multiple crankshaft ic engine
11/1997
11/26/1997EP0808416A1 Two-stroke high power engine
11/20/1997DE19619969A1 Self=synchronising coupling for split environment engine
09/1997
09/12/1997WO1997033072A1 Modular engine
09/12/1997CA2248373A1 Modular engine
08/1997
08/27/1997EP0680551B1 Method of operating an internal combustion engine
04/1997
04/24/1997DE19538912A1 Modular crank disc system, to convert axial motion into rotation
01/1997
01/29/1997EP0756067A2 Dual compression and dual expansion internal combustion engine
01/16/1997WO1997001694A1 Multiple crankshaft ic engine
01/15/1997EP0668962B1 Engine
01/02/1997DE19624257A1 Engine with curved piston and gas turbine
10/1996
10/10/1996DE19529991C1 Engine unit with pair of IC engines
09/1996
09/10/1996US5553576 Vehicle motorization unit
08/1996
08/06/1996US5542382 Dual compression and dual expansion internal combustion engine and method therefor
07/1996
07/18/1996WO1996021804A1 Two-stroke high power engine
06/1996
06/26/1996EP0718482A1 Engine system
05/1996
05/30/1996DE4443260A1 Heat engine unit with cleaner exhaust gases
04/1996
04/17/1996EP0617754B1 Internal combustion engines
04/10/1996CN1120118A Vehicle motorization unit
12/1995
12/26/1995US5477818 Internal combustion engine
11/1995
11/08/1995EP0680551A1 Dual compression and dual expansion internal combustion engine and methodtherefor.
11/02/1995DE4414769A1 Multicylinder drive unit for motorcycle
09/1995
09/21/1995DE4408908A1 Two=stroke engine for use in construction of models
08/1995
08/30/1995EP0668962A1 Engine.
07/1995
07/26/1995EP0663984A1 Integral motor
07/06/1995WO1995018296A1 Internal combustion beam engine
03/1995
03/21/1995US5398508 Three displacement engine and transmission systems for motor vehicles
02/1995
02/15/1995EP0638714A1 Internal combustion engine
02/09/1995WO1995004216A1 Integral motor
12/1994
12/13/1994US5372215 Split engine for a snowmobile having an angular motion accommodating connection between the two engine output shafts
12/08/1994WO1994028298A1 Arrangement in combined-cycle power plant
10/1994
10/05/1994EP0617754A1 Internal combustion engines.
09/1994
09/29/1994DE4309476A1 Multi-engine unit with supercharged diesel internal combustion engines
07/1994
07/14/1994DE4344630A1 Reciprocating piston engine with two crankshafts
06/1994
06/16/1994DE4340872A1 Engine unit for motor vehicles, generators, etc - with exhaust and heat losses of IC engine used in Stirling motor
05/1994
05/26/1994WO1994011624A1 Engine
04/1994
04/20/1994EP0593090A1 Dual compression and dual expansion internal combustion engine and method therefor
04/20/1994EP0593089A1 Dual compression and dual expansion internal combustion engine and method therefor
04/12/1994US5301645 Vehicle drive assembly with auxiliary engine
02/1994
02/25/1994EP0680551A4 Dual compression and dual expansion internal combustion engine and methodtherefor.
01/1994
01/18/1994US5279381 Power transmission system for snowmobile
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