| Patents for F02B 41 - Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power (2,672) |
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| 10/27/1999 | CN2345703Y Air inlet vortex reinforced mechanism of internal-combustion engine |
| 10/26/1999 | US5970924 Arc-piston engine |
| 10/12/1999 | US5964087 External combustion engine |
| 10/07/1999 | WO1999050541A1 High efficiency vehicle and engine |
| 10/06/1999 | CN2342107Y Improvement of air Inlet bent-tube for waste gas turbocharger air compressor |
| 09/29/1999 | EP0945606A2 Turbocharged gas-combustion engine equipped with motor generator |
| 09/29/1999 | CN2340913Y Booster |
| 09/01/1999 | EP0938625A1 Improved internal combustion engine and working cycle |
| 08/25/1999 | CN1226631A Exhaust booster for monocylinder diesel engine |
| 08/18/1999 | EP0935702A1 An engine |
| 08/03/1999 | CA2115573C Internal combustion engine having opposed pistons |
| 07/14/1999 | CN2328800Y Single cylinder series diesel engine supercharging device |
| 07/07/1999 | CN1222218A Method for pollution abating engine and installation on city bus and other vehicles |
| 07/06/1999 | US5918504 High torque motion converting and transmitting mechanism for an engine |
| 06/24/1999 | WO1999031373A1 Arrangement for a combustion engine |
| 06/17/1999 | DE19844200A1 Variable compression ratio crank drive |
| 06/09/1999 | CN1219216A Internal combustion engine with constant-volume independent combustion chamber |
| 06/02/1999 | CN1218539A IC engines |
| 05/26/1999 | CN2320796Y Booster oil economizer for motorcycle |
| 04/29/1999 | WO1999006682A3 Supercharged internal combustion compound engine |
| 04/27/1999 | CA2050455C Aluminum casting alloy for high strength/high temperature applications |
| 04/14/1999 | EP0908610A1 Apparatus and method of fuel injection and ignition of internal combustion engine |
| 04/08/1999 | DE19743118A1 Combustion chamber modification for spark-iginition piston engines |
| 04/07/1999 | EP0906492A1 Method for pollution abating engine and installation on a city bus and other vehicles |
| 04/06/1999 | US5890465 Internal combustion engine with optimum torque output |
| 03/30/1999 | US5889338 Demagnetizing apparatus for an automotive engine |
| 03/25/1999 | WO1999014472A1 Internal combustion engines |
| 03/25/1999 | DE19742031A1 Internal combustion engine with exhaust gas turbocharger and additional energy converter |
| 03/23/1999 | US5884482 Combustion engine of turbocompound type with exhaust gas brake |
| 03/18/1999 | WO1999013206A1 Internal combustion engine with variable compression ratio |
| 03/17/1999 | EP0842354B1 Internal combustion engine |
| 03/16/1999 | US5881559 Hybrid electric vehicle |
| 03/11/1999 | WO1999011906A1 Coupling arrangement for reciprocating piston engine |
| 03/10/1999 | CN1042453C IC engine |
| 03/03/1999 | EP0898644A1 Internal combustion engines |
| 03/03/1999 | CN2309430Y 空气冷却器 Air cooler |
| 03/02/1999 | US5875755 Low compression ratio internal combustion engine |
| 02/25/1999 | DE19834297A1 Water injection for turbocharged internal combustion engine |
| 02/24/1999 | EP0897463A1 Arrangement and method for power transmission in combustion engines |
| 02/18/1999 | DE19734984A1 Motor fuel gas compression |
| 02/17/1999 | CN2307913Y Engine using afterheat increasing efficiency |
| 02/11/1999 | WO1999006682A2 Supercharged internal combustion compound engine |
| 02/10/1999 | EP0895564A1 Low-temperature, near-adiabatic engine |
| 02/03/1999 | EP0894189A1 Supercharged internal combustion engine |
| 02/03/1999 | CN1206784A Spark ignition type four-stroke internal combustion engine with booster pump |
| 01/20/1999 | EP0892162A2 Dual compression and dual expansion internal combustion engine |
| 01/12/1999 | US5857436 Internal combustion engine and method for generating power |
| 01/07/1999 | EP0889214A2 Method and device to increase the brake power of engines |
| 12/30/1998 | WO1998059155A1 Engine |
| 12/30/1998 | CN2302341Y Automobile engine with main and secondary gas escape tube boost system |
| 12/22/1998 | US5850810 Spinning and shuttling piston assembly |
| 12/10/1998 | DE19724225A1 Piston engine operating process |
| 12/03/1998 | DE19806521A1 Connecting rod for Otto/Diesel engines |
| 11/19/1998 | DE19742445C1 Engine braking control for turbocharged combustion engine |
| 11/10/1998 | US5832885 Hybrid internal combustion engine |
| 11/05/1998 | WO1998049437A1 Arrangement in a two cycle combustion engine with internal combustion |
| 11/04/1998 | EP0875671A1 New scavenging process for internal combustion engines |
| 10/28/1998 | EP0874143A2 Ceramic engine with a heat exchanger using porous material |
| 10/28/1998 | CN1197497A I. C. engine |
| 10/14/1998 | CN2294338Y Air-filtration type supercharger for diesel engine |
| 10/14/1998 | CN1040243C Twostroke reciprocating combustion engine |
| 10/13/1998 | US5819702 High efficiency vehicle and engine |
| 10/07/1998 | EP0868600A1 Device for regulating the engine braking power of an internal combustion engine |
| 10/06/1998 | US5816202 High efficiency explosion engine with a double acting piston |
| 10/06/1998 | US5816201 Offset crankshaft mechanism for an internal combustion engine |
| 10/01/1998 | DE19712415A1 Combination system for four-stroke diesel engines |
| 09/30/1998 | CN2292906Y High-efficiency fuel economizer for internal combustion locomotive |
| 09/16/1998 | CN1193375A Fiber reinforced ceramic matrix composite cylinder head and cylinder head liner for an imternal combustion engine |
| 09/15/1998 | US5806315 Internal combustion engine |
| 09/09/1998 | EP0862685A1 Combination internal combustion and steam engine |
| 09/01/1998 | US5799636 Split cycle engines |
| 08/26/1998 | CN2289061Y Climbing booster by turbocharger for diesel oil automobile |
| 07/29/1998 | EP0854975A1 Floating piston, piston-valve engine |
| 07/16/1998 | WO1998030792A1 Orbital internal combustion engine |
| 07/07/1998 | US5775105 Combination nozzle and valve with variable geometry for increased power recovery from internal combustion engine exhaust gas |
| 07/02/1998 | DE19652768A1 Internal combustion engine |
| 06/23/1998 | US5769042 Method of operating an internal combustion engine during a combustion process |
| 06/03/1998 | EP0845075A1 Fiber reinforced ceramic matrix composite cylinder head and cylinder head liner for an internal combustion engine |
| 05/26/1998 | US5755195 Internal combustion engine with a gear arrangement on a connection between the piston and the crankshaft and a method of operation thereof |
| 05/20/1998 | EP0842354A1 Internal combustion engine |
| 05/14/1998 | WO1998020268A1 Internal combustion engine with optimum torque output |
| 05/12/1998 | US5749262 Crank mechanism |
| 04/29/1998 | CN1180135A Combined internal combustion engine |
| 04/02/1998 | WO1998013581A1 An engine |
| 04/02/1998 | DE19641586C1 Crank drive producing pear-shaped track for connecting rod bearings in piston engines |
| 03/24/1998 | US5730096 High-efficiency, low-pollution engine |
| 03/17/1998 | US5728913 Moisture based method of improving the performance of hydrocarbon fuels |
| 03/12/1998 | DE19733385A1 Otto engine avoiding throttling of incoming mixture |
| 03/10/1998 | US5724863 Connecting rod |
| 03/04/1998 | EP0826098A1 Tandem-differential-piston internal-combustion engine |
| 02/26/1998 | DE19732307A1 Auxiliary drive system for road vehicle |
| 02/11/1998 | EP0793769A4 Variable valve lift mechanism for internal combustion engine |
| 02/11/1998 | CN1173214A Variable valve lift mechanism for internal combustion engine |
| 02/04/1998 | CN2273777Y Reciprocating type device for improving pressure and fuel-saving |
| 01/27/1998 | US5711267 Mechanism for translating reciprocating motion to rotary motion |
| 01/22/1998 | CA2276245A1 Improved internal combustion engine and working cycle |
| 01/21/1998 | EP0749522A4 Low compression ratio internal combustion engine |
| 01/15/1998 | WO1998001656A1 Eccentrically mounted connecting rod big end |
| 01/07/1998 | EP0597104B1 Oldham drive engine |
| 01/06/1998 | US5704210 Intercooled supercharged gas generator engine |