Patents
Sitemap › F02 - Combustion engines; Hot-gas or combustion-product engine plants › F02B - Internal-combustion piston engines; Combustion engines in general › F02B 41 - Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power
Patents for F02B 41 - Engines characterised by special means for improving conversion of heat or pressure energy into mechanical power (2,672)
07/1991
07/04/1991DE3943150A1 Engine with divided stroke gas change - has outlet slits and slide lips for longer combustion stroke than compression stroke
06/1991
06/19/1991EP0433040A1 Engine with flywheel generator
06/12/1991EP0431920A1 Internal combustion engine
05/1991
05/29/1991WO1991008377A1 Internal combustion engines
05/14/1991US5015356 Hydrocarbon fuel systems
05/07/1991US5012906 Apparatus for disengaging a friction clutch which couples an exhaust gas turbine to an internal combustion engine
05/02/1991WO1991005945A1 An endothermic engine with an otto-cycle and double combustion diesel cycle
04/1991
04/16/1991US5007384 L-head two stroke engines
04/10/1991EP0421481A1 Device for introducing pressurized gas in a combustion chamber of an internal combustion engine
04/04/1991DE3928520A1 Piston-engine output-improvement - involves partly encapsulated combustion chamber enclosed by air buffer-storage chamber
04/03/1991EP0420705A1 Complex turbocharger compound engine system
03/1991
03/14/1991DE3927535A1 IC engine crank drive system - incorporates gears to give dwell period near TDC
03/05/1991US4996839 For aircraft
02/1991
02/21/1991DE4023299A1 Heat engine with continuous heat supply - has method of controlling compression, and gas throughput
02/13/1991CN1011607B Turbo compound engine
02/12/1991CA1280044C Internal combustion engine
02/05/1991US4989410 Motor for a vehicle
01/1991
01/31/1991DE4011139A1 After chamber inlet control for two=stroke engine - uses slotted control disc to influence mixt. formation
01/24/1991DE3923370A1 Speed reduction gear train - is for exhaust gas turbocharger and has torsion bush to damp out torsional vibrations
12/1990
12/27/1990WO1990015919A1 Device at an internal combustion engine
12/27/1990EP0309508B1 Crank mechanism
12/27/1990EP0159320B1 Internal combustion engine and operating cycle therefor
12/25/1990US4979428 Reciprocating air compressor with improved drive linkage
12/11/1990US4976226 Method for increasing the heat efficiency of a piston combustion engine
12/06/1990DE3917468A1 IC engine, crankshaft speed independent torque booster - has split eccentric movable fitted between crane pin and big end bearing
12/04/1990US4974554 Compound rod, sleeve and offset crankshaft assembly
12/04/1990US4974553 Rotary internal combustion engine
11/1990
11/29/1990WO1990014509A1 Power transmission of turbocompound engine
11/22/1990EP0398138A2 Device for controlling a power turbine coupled with a generator
11/15/1990DE3942220A1 Piston type IC engine - has cylinder axis offset from crankshaft axis
11/14/1990EP0396754A1 Power transmission for supercharger-carrying internal combustion engines
11/08/1990DE3914987A1 IC engine with extended piston and cylinder - reduces temp. of sliding surfaces of piston and cylinder
10/1990
10/30/1990US4966109 Hydraulic connecting rod
10/30/1990US4966043 Crank drive
10/23/1990US4964275 Multicylinder compound engine
10/18/1990WO1990012203A1 Hydraulic connecting rod
10/18/1990WO1990012202A1 Reciprocating engine having two crank mechanisms
09/1990
09/18/1990US4957069 Driving or working engine, in particular an internal combustion engine
09/11/1990US4955332 Vaporization
09/11/1990US4955199 Drive system for turbochargers with rotary electric machines
08/1990
08/23/1990WO1990009515A1 Power transmission of turbo-compound engine
08/16/1990DE3904399A1 Exhaust-energy recovery device
08/07/1990US4945866 Altered piston timing engine
08/02/1990DE3902051A1 Internal combustion engine with multi-cylinder combination
07/1990
07/18/1990EP0378085A2 Exhaust gas turbine generator apparatus
07/11/1990CN1008758B Improved ic engine and operating method
07/10/1990US4940029 Turbocompounded two-stroke piston engines
07/04/1990EP0376909A1 Internal-combustion engine
06/1990
06/28/1990DE3843521A1 Method for controlling and/or regulating the burn-through rate of a fuel-air mixture
06/19/1990US4934344 Modified four stroke cycle and mechanism
06/14/1990WO1990006424A1 Rotary internal combustion engine
06/13/1990EP0250406B1 Piston engines
05/1990
05/31/1990WO1990005862A1 Four dead centers crank mechanism
05/31/1990CA2003491A1 Rotary internal combustion engine
05/02/1990EP0366536A1 Adapted compound engine
05/02/1990CN1041813A Multifunctional semi-rotor internal combustion engine
04/1990
04/17/1990US4917054 Six-stroke internal combustion engine
04/12/1990DE3831451A1 Internal combustion engine with irrotational pistons
04/05/1990WO1990003504A1 Crankshaft arrangement
04/04/1990EP0361030A1 Friction clutch
03/1990
03/29/1990DE3931379A1 IC engine with external compressor - with greater part of compression occurring in compressor
02/1990
02/22/1990WO1990001647A1 Double upside down crank mechanism
02/08/1990DE3826617A1 Internal combustion engine
02/06/1990US4897998 Turbo compound engine
01/1990
01/25/1990DE3824521A1 Hypocycloidal gear motor (internal combustion engine)
01/24/1990EP0352063A1 Drive system for turbochargers with rotary electric machines
01/23/1990US4894992 Turbo compound engine
01/02/1990US4890588 Means to control piston movement in relationship to crank arm rotation in an internal combustion engine
12/1989
12/19/1989US4887560 Crankshaft assembly for variable stroke engine for variable compression
12/12/1989US4886978 Exhaust energy recovery apparatus for engine
12/06/1989EP0344902A2 Electric power generating apparatus
12/06/1989EP0344204A1 Variable-cycle reciprocating internal combustion engine
12/05/1989US4884407 Turbo compound engine
10/1989
10/31/1989US4876850 Combustion engine for solid block fuel
10/26/1989DE3812242A1 Exergy engine-reciprocating piston internal combustion engine with reduced fuel demand
10/19/1989WO1989009873A1 Power transmission for supercharger-carrying internal combustion engines
10/17/1989US4873825 Positive displacement engine compounded with a gas turbine engine
10/10/1989US4872311 Exhaust gas turbine connected to engine output
09/1989
09/27/1989EP0333704A1 Method for providing an improved combustion in processes of combustion containing hydrocarbon compounds.
09/21/1989DE3808342A1 Two-stroke internal combustion engine with self-ignition and secondary expansion
09/21/1989DE3807372A1 Internal combustion engine with two-stage exhaust turbocharger and power output turbine
09/05/1989US4864151 Exhaust gas turbine powered electric generating system
09/05/1989US4862841 Internal combustion engine
08/1989
08/31/1989DE3804859A1 Sprung connecting rod
08/30/1989EP0330326A2 Uncooled oilless internal combustion engine having uniform gas squeeze film lubrication
08/29/1989US4860701 Multiple piston expansion chamber engine
08/29/1989US4860699 Two-cycle engine
08/29/1989CA1258775A1 Engine energy recovery apparatus
08/29/1989CA1258774A1 Turbo compound engine
08/24/1989WO1989007705A1 Output increasing structure for piston-crank type engines
08/22/1989US4858440 Turbo-compound engine
08/16/1989EP0327804A2 Internal-combustion engine
08/15/1989US4856463 Variable-cycle reciprocating internal combustion engine
08/10/1989DE3802364A1 Internal combustion engine
07/1989
07/20/1989DE3800606A1 Two-stroke internal combustion engine with an oscillating piston divided cylinder arrangement serving for the delivery of fresh gas or for secondary expansion of the combustion gases
07/11/1989US4846051 Uncooled oilless internal combustion engine having uniform gas squeeze film lubrication
07/04/1989US4843822 Turbo compound engine
07/04/1989US4843821 Multicylinder compound engine
06/1989
06/13/1989CA1255508A1 Turbo compound internal combustion engine
05/1989
05/16/1989US4829958 Device and method for introducing pressurized gas into a combustion chamber of a reciprocating internal combustion engine
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