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WO/1997/038213 |
An internal combustion engine comprising a cylinder block with a cylinder including a cylindrical wall having an axis and opposite inlet and outlet ports, a cylinder head fixed to the cylinder block and including a recess (45), a spark p...
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WO/1997/035102 |
An internal combustion engine (11) comprises an engine block (13) having a cylinder (17), a cylinder head (21) fixed to the block and a piston (31), defining a combustion chamber (51). The piston face (37) has a bowl (39) with a cylindri...
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WO/1997/013971 |
A drive train includes an engine having a power cylinder (12) with a power piston (4). Fuel is fed into a combustion chamber (2) located within the power cylinder at one side of the power piston. Intake and exhaust valves (16, 18), in fl...
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WO/1997/006360 |
An internal combustion engine comprises one or more pairs of first and second cylinders (12, 14), the first cylinder (12) having a larger swept volume than the second cylinder (14) and respective first and second pistons (16, 18) recipro...
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WO/1997/002417 |
The invention relates to a cylinder head device (2) for an internal combustion engine with at least one cylinder (4). The cylinder head has for each cylinder an inlet channel (6) with an inlet valve (7), and an exhaust channel (8) with a...
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WO/1996/034189 |
An internal combustion engine is provided with a fuel vaporisation chamber (10) separated from but adjacent to a main combustion chamber (12). The wall (14) of the vaporisation chamber (10) has at least one aperture (16) to allow partial...
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WO/1996/028647 |
The invention pertains to a system for improving the ignition efficiency of internal combustion engines by using a number of small, water-cooled pre-combustion chambers which can be threaded into spark plug holes (13). The pre-combustion...
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WO/1996/025592 |
An internal combustion engine (20) having a combustion chamber (36), a pre-combustion chamber (76) communicating with the combustion chamber (36), injection means (70) located and arranged to periodically deliver controlled amounts of fu...
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WO/1996/022455 |
A diesel engine (10) has a precombustion chamber (30) with four circumferentially spaced and angled transfer passages (60, 61) leading to the main combustion chamber (44). Each transfer passage (60, 61) is tapered to provide a larger low...
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WO/1996/017160 |
A low compression ratio internal combustion engine with extended dwell at ornear piston top dead centre to facilitate substantially complete combustion providing a higher engine output power. A pre-combustion chamber (10) passes high tem...
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WO/1996/015362 |
Inlet and exhaust valve timing is varied in conjunction with reducing the engines compression ratio and increasing drive to the supercharger. Variations include the early opening of one or more exhaust valves and/or closure of one or mor...
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WO/1996/002742 |
An ignition device for an internal combustion engine comprising a small pre-chamber (1) having a volume of about 0.7 % of the volume of an associated combustion chamber, a small outlet orifice (1a) in the pre-chamber having a dimensionle...
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WO/1996/001943 |
This invention relates to engine-building and more particularly to a method of piston internal combustion engine working and may be used in stationary power-generating plants and in transport. A method of piston internal combustion engin...
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WO/1995/025881 |
The invention relates to a method for supplying to a combustion chamber (2) a finely distributed, for instance vaporous or atomized, fuel (V) by supplying a liquid fuel (L) to an intermediate space (9) connected to the combustion chamber...
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WO/1995/024547 |
An internal combustion engine comprises a cylinder assembly including a cylinder (4), at least one piston (8) mounted for reciprocation within the cylinder (4), a common compression chamber (6) defined by the cylinder (4) and piston(s) (...
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WO/1995/000752 |
An internal combustion engine comprises one or more pairs of first and second cylinders (12, 14), the first cylinder (12) having a larger swept volume than the second cylinder (14) and respective first and second pistons (16, 18) recipro...
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WO/1994/025743 |
Method and devices for controlling the combustion of a four stroke engine, comprising for each cylinder, in addition to the main cumbustion chamber (7), a small secondary combustion chamber (12) which is completely separate and independe...
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WO/1994/021903 |
The invention relates to an arrangement in such ignition gaps or channels as are used in combustion devices, for example internal-combustion engines, to impart to an injected finely-divided particulate fuel a temperature sufficient for i...
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WO/1994/016206 |
An all-fuel internal combustion engine comprises a cylinder (1) with a compression chamber (9) on the piston (6) mounted in the cylinder, a combustion chamber (7) for the fuel mixture arranged in the vertical plane in relation to the com...
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WO/1994/013986 |
A non-return valve (10) employed in a pre-combustion chamber (12) for a gas fuelled internal combustion engine is described. The non-return valve (10) comprises a body (30) having an inlet passage (32), and an outlet passage (34) which i...
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WO/1994/005821 |
To provide a diesel engine prechamber sleeve excellent in the resistances to high-temperature oxidation and thermal shock. A diesel engine prechamber sleeve made of a heat-resistant iron-base alloy having a chemical composition comprisin...
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WO/1994/002721 |
A small bore internal combustion engine having a four-stroke operating cycle which is adapted to function with natural gas and other gaseous fuels and which is particularly useful with residential heat pump assemblies with maximum life e...
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WO/1994/001666 |
An internal combustion engine has first and second cylinders (12, 14), the first cylinder (12) having a larger swept volume than the second cylinder (14) and the second cylinder being formed in the crown of the first cylinder. First and ...
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WO/1993/025812 |
A piston (14) for an internal combustion engine (10) is provided with a reaction chamber (44) for generating radical fuel species during a combustion cycle for use during the next succeeding combustion cycle. The reaction chamber (44) is...
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WO/1993/022549 |
Fresh air fed into the working chamber (1) of an engine is centrifugally prevented from mixing with the combustion gases deliberately retained therein from one cycle to the next. An assembly for feeding in pressurized fuel (10) is arrang...
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WO/1993/009337 |
An internal combustion engine has at least one set of first and second cylinders (12, 14), the first cylinder (12) having a larger swept volume than the second cylinder (14), and respective first and second pistons (16, 18) movable in th...
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WO/1993/008399 |
A gas delivery system for gas fuelled internal combustion engines, comprising a gas fuel delivery means (10) for delivering a controlled amount of gaseous fuel to a region adjacent a source of ignition (26). The gas fuel delivery means (...
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WO/1993/008385 |
An ignition device for an internal combustion engine comprising a small pre-chamber (1) having a volume of about 0.7 % of the volume of an associated combustion chamber, a small outlet orifice (1a) in the pre-chamber (1) having a dimensi...
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WO/1993/006348 |
A two stroke internal combustion engine comprises a piston (8) reciprocating in compression chamber (6), an inlet valve (5) permitting the supply of scavenging air at high pressure to compression chamber (6), a small external combustion ...
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WO/1992/006285 |
An internal combustion engine having cylinders (20), wherein each cylinder (20) comprises a split chamber with at least two regions (34, 36) formed therein and a piston (22) slidably disposed in the cylinder (20) to form at least one pri...
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WO/1992/002718 |
A capsule (10), the interior volume of which is an ignition chamber (14), is provided with an engine to improve ignition. The capsule (10) has an orifice (36) so the ignition chamber (14) can communicate with a main combustion chamber (5...
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WO/1992/001860 |
An internal combustion engine has first and second cylinders (12, 14), the first cylinder (12) having a larger swept volume than the second cylinder (14) and the second cylinder being formed in the crown of the first cylinder. First and ...
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WO/1991/019084 |
A split cycle internal combustion engine having located wholly within the combustion chamber (13) of the firing cylinder (10) and spaced from the walls thereof a hollow dome (14) with the closed head of the dome (14) adjacent to the head...
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WO/1991/019083 |
An internal combustion engine provided with an electrically heated member against which fuel collides in a combustion chamber. An electrically heated member (13) is provided in a cavity (7) formed in the top surface of a piston (2), and ...
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WO/1991/019085 |
An internal combustion engine provided with an electrically heated heating member on which fuel strikes and which is disposed in the combustion chamber. An electrically heated heating member (13) is disposed in a cavity (7) formed on the...
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WO/1991/012418 |
This invention relates to a fuel combustion system (10) for a lean burn internal combustion engine (12). Because of the lean fuel/air ratio, it is difficult to consistently achieve complete and thorough combustion within the main combust...
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WO/1991/008603 |
A spark plug for use with an internal combustion engine consists of an electrically conductive hollow body, a dielectric core member located within said body and through which extends a first electrode having a tip portion projecting bel...
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WO/1990/011435 |
A fuel combustion system (12) for an Otto-cycle internal combustion engine (10) including a main combustion chamber (14) and an auxiliairy combustion chamber (26). Timing of ignition is effected by opening a control valve device (28) dur...
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WO/1990/010152 |
A method and device (18) for generating (31, 32, 28, 13, 17, 21, 27) pulsed jets which will form plumes comprising eddy structures, which entrain a fuel/air mixture from the head space of an internal combustion engine, and mixing this fu...
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WO/1989/007193 |
In a process for operating a single-cylinder or multicylinder internal combustion engine, in particular with spontaneously igniting fuel, metered quantities of fuel are introduced into a combustion chamber. Prior to introduction into the...
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WO/1989/006747 |
A fuel injection apparatus in which a closed fuel circuit is pressurized, and the amount of fuel injected is determined by varying the on/off time of injectors. Air intake by the engine is controlled in response to the aspiration conditi...
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WO/1989/003476 |
The engine is characterized by an axial group of two cylinders (2, 7) communicating by means of a channel (22) situated in the cylinder head (20). Both cylinders (2, 7) joined side to side allow for a centralization of both crankshafts (...
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WO/1989/003474 |
A rotary bell (36) driven by a hollow shaft (42) and a pinion (46) selectively uncovers the intake and exhaust ports of the cylinder head (23). The bell delimits a substantially hemispherical combustion chamber (26) and has a progressive...
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WO/1988/006231 |
A combustor and a combustion system for internal combustion engines. A funnel-shaped cone (9) having an opening (13) at the top portion thereof is provided in a combustion chamber (5) so as to be spaced from an igniter. An inflammable ga...
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WO/1988/001339 |
An internal combustion engine, having a combustion chamber (10, 11) with a main suction valve (4) for a lean mixture and a secondary suction valve (9) for a rich mixture in the area of the sparking plug (13), is provided with a compresso...
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WO/1988/001338 |
An engine accessory (P) provides an auxiliary combustion chamber (1) for conventional four-stroke internal combustion engines in the form of a pre-combustion chamber for insertion in an existing spark plug socket (4) in the engine head (...
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WO/1988/000281 |
In a reciprocating piston engine a peripheral cavity (6) surrounds each engine cylinder (8) adjacent a cyclinder head (4) of the engine. A plurality of ports (7) provide communication between the cavity (6) and the cylinder (8), the port...
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WO/1987/005358 |
In an internal combustion engine, each cylinder (1) has a storage chamber (10) shaped as a surrounding annular space. This storage chamber (10) has injection nozzles (17, 18) which inject the fuel necessary for the combustion. Only when ...
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WO/1987/004494 |
A compound engine comprises a positive displacement engine (100), such as a reciprocating or rotary piston diesel engine, which is linked to a turbine/turbocompressor set in the form of a gas turbine engine (102) with a free power turbin...
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WO/1987/004493 |
An operating cycle for a turbocompounded 2-stroke piston engine comprises a compression stroke, shown as B-A-G on the indicator diagram and an expansion stroke G-K-L-B. The expansion stroke expands the combustion gases to a pressure PB w...
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