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WO/2024/076879A2 |
Systems, apparatus, and methods described herein can overcome some of the disadvantages of existing internal combustion engines. In particular, systems, apparatus, and methods described herein can improve the mixing uniformity of fuel an...
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WO/2024/013632A1 |
Internal combustion engine with hydrogen direct injection equipped with: - a cylinder head (100) equipped with at least one injector (20) configured to inject a spray (21) of hydrogen, - at least one piston (10) - a combustion chamber (4...
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WO/2024/008272A1 |
The disclosure relates to a piston (3) for an internal combustion engine, ICE, said piston extending in an axial direction (A) and a radial direction (R), and having an axial top end (16) comprising a piston bowl (6) intended to form par...
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WO/2023/234877A1 |
A combustion chamber for internal combustion engines as new construction or renovation of existing engines is designed to reduce consumption, emissions and detonations by supplying richer fuel mixture into a primary volume (1.1) through ...
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WO/2023/219601A1 |
An engine is provided with various enhanced features. For example, a 2-stroke diesel engine has a porting design that enhances the efficiency of a scavenging event. In specific embodiments, a four-piece piston is positioned in each cylin...
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WO/2023/218742A1 |
This internal combustion engine is provided with a cylinder liner, a cylinder head, a suction valve, an exhaust valve, a piston, and an injector. The cylinder head and the suction valve are configured to form a swirl flow in a combustion...
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WO/2023/218308A1 |
Described herein is a hydrogen spark ignition internal combustion engine (1) based on the architecture of a compression- ignition internal combustion diesel engine (E) of the prior art. The internal combustion engine (1) according to the...
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WO/2023/213620A1 |
A tubular structure (100) adapted to connect a valve cover (200) of an internal combustion engine (300) to a portion (310) of the internal combustion engine (300) is disclosed. The tubular structure (100) is adapted to protect an ignitio...
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WO/2023/188881A1 |
A two-stroke engine (E) of the present disclosure is provided with both an intake port (16) and an exhaust port (18) on either side of a cylinder axis (AX1) in a top wall (12a) of a combustion chamber (12), and the intake port (16) and t...
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WO/2023/185197A1 |
An engine combustion system control method, and an engine combustion system. Working conditions of an engine are divided into three working conditions, according to a rotating speed of the engine and a torque of the engine, and a corresp...
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WO/2023/183662A1 |
Operating a gaseous fuel engine (18) includes spark-igniting gaseous hydrogen fuel and air, and propagating combustion gases of the spark-ignited mixture outwardly from a spark gap. The propagating combustion gases are impinged upon a co...
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WO/2023/174003A1 |
A piston and an engine. The piston comprises a piston body (1), the top of which is provided with a combustion chamber (2). The combustion chamber comprises a first ring groove (21), a second ring groove (22) and a third ring groove (23)...
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WO/2023/175643A1 |
The present invention relates to a compression ignition internal combustion engine of the type known as HCCI (Homogeneous Charge Compression Ignition) provided with a special combustion chamber suitable for containing the formation of ni...
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WO/2023/169581A1 |
An engine combustion system, a control method and an engine. The combustion system comprises: a cylinder having a cylinder chamber; a piston, the top of which is provided with a combustion chamber in communication with the cylinder chamb...
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WO/2023/160274A1 |
An oil injection method for a swirl combustion chamber comprises: by means of acquiring a target oil injection duration of a swirl combustion chamber, and a first oil injection start point, a first oil injection end point, a current oil ...
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WO/2023/135563A1 |
Piston (16) suitable for a Diesel engine (10), the piston having a flat ceiling (20), an annular head (22), a skirt (24) extending axially from the annular head (22) and a circular combustion chamber (28, 80, 90) embedded in the ceiling ...
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WO/2023/110131A1 |
The disclosure relates to an internal combustion engine, ICE, system (100) comprising: an internal combustion engine (10) for combustion of gaseous fuel and having a combustion chamber (7) at least partially delimited by a cylinder (2); ...
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WO/2023/110125A1 |
The disclosure relates to an internal combustion engine, ICE, system (100) comprising: an internal combustion engine (10) for combustion of gaseous fuel and having a combustion chamber (7) at least partially delimited by a cylinder (2); ...
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WO/2023/110130A1 |
The disclosure relates to a piston (3) for an internal combustion engine, ICE, (10) operable on a gaseous fuel, said piston having a piston top end (16) comprising a piston bowl (6) for receiving at least one gaseous fuel jet (50, 50a-c)...
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WO/2023/094212A1 |
The invention relates to an internal combustion engine comprising: - at least one cylinder in which a combustion chamber is formed, the combustion chamber being delimited by the side walls of the cylinder and a combustion chamber roof 20...
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WO/2023/084747A1 |
An internal combustion engine (10) comprises a combustion chamber (28), a spark plug (43), an intake port (30), and an exhaust port (31). A tip (43a) of the spark plug (43) is positioned between the intake port (30) and the exhaust port ...
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WO/2023/072429A1 |
The present invention refers to a piston (14) for an internal combustion engine, having a piston crown (22) provided with a piston bowl (40) which includes a circumferential edge portion (42) connecting a circumferential side wall portio...
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WO/2023/070077A1 |
An internal combustion engine and a piston for placement in a cylinder of the internal combustion engine are provided. The engine and piston are designed to reduce hydrocarbon emissions caused by unburnt fuel which remains in a crevice l...
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WO/2023/067117A2 |
A method of combusting hydrogen gas in an engine cylinder to initiate a diffusion combustion process, the engine cylinder having a cylinder piston (18) which is driven by means of a crankshaft between bottom dead centre (BDC) and top dea...
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WO/2023/066828A1 |
The invention relates to an internal combustion engine (1) comprising: at least one cylinder (3) having a combustion chamber (4), wherein a first inlet channel (10) having a first inlet valve (18) opens into the combustion chamber (4) vi...
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WO/2023/038869A1 |
A far square or diamond architecture engine with tumble flow to support spark-ignited fuel usage. The engine may be provided in a configuration generally suited for swirl flow, compression combustion fuel usage. However, the introduction...
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WO/2023/036967A1 |
A method for operating an internal combustion engine (1) which comprises at least one cylinder (3) with a combustion chamber (2) in which hydrogen as fuel is combusted with air, wherein, at least in sections in the combustion chamber (3)...
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WO/2023/024353A1 |
A special engine for a range extender, comprising a cylinder body (1). The cylinder body (1) is provided with a cylinder (3); the cylinder (3) is internally provided with a piston (4) that is vertically slidable along the inner wall of a...
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WO/2023/009516A1 |
An improved air-cooled aviation engine includes a compact combustion chamber having an intake valve opening, an exhaust valve opening, and a generally elliptical shape. The elliptical shape has a major axis and a minor axis, with the maj...
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WO/2022/262275A1 |
Disclosed are a control method for a combustion system, the combustion system, and an engine. The control method for the combustion system comprises: a fuel injector (10) conducts first primary spray and second primary spray at intervals...
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WO/2022/236457A1 |
A combustion system (100) and a vehicle. The combustion system (100) may comprise an air intake passage (10), an air exhaust passage (20), an air intake valve (30), and an air exhaust valve (40). The included angle between an axis of the...
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WO/2022/213171A1 |
A motor vehicle internal combustion engine with a low-toxicity fuel combustion process comprises a cylinder with a piston, coupled to a crankshaft, and a cylinder head with intake and exhaust valves. A compression chamber contains two se...
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WO/2022/210121A1 |
The present disclosure is designed to provide a configuration for an internal combustion engine in which a partition part is provided in an intake passage, wherein it is made possible to further enhance the efficiency of flame propagatio...
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WO/2022/202746A1 |
This opposed-piston engine comprises a cylinder, a one side piston disposed to one side in the axial direction inside the cylinder, and an other side piston disposed to the other side in the axial direction inside the cylinder, wherein: ...
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WO/2022/199841A1 |
A cylinder head (53) for a lean-burn gasoline engine comprising a combustion chamber (50) extending into the cylinder head away from a gasket interface surface (58). The combustion chamber comprises a roof surface (90) which intersects t...
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WO/2022/202739A1 |
This opposed-piston engine is provided with a cylinder in which a scavenging port is formed on one side in an axial direction, and an exhaust port is formed on the other side in the axial direction, a scavenging-side piston installed ins...
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WO/2022/200611A1 |
A piston (54) for an engine comprising a cylinder (57), an air inlet (91a) and an exhaust outlet (92a), wherein the air inlet (91a) and the exhaust outlet (92a) are arranged about a longitudinal axis (60) of the cylinder (57). The piston...
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WO/2022/201895A1 |
This combustion chamber structure (10) comprises a cylinder head (12) in which a fuel injection valve (6) is disposed, a cylinder (11), and a piston (13). A combustion chamber (1) is formed in a space surrounded by a top surface of the p...
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WO/2022/199842A1 |
A cylinder head (53) for a lean-burn gasoline engine comprising a combustion chamber (50) extending into the cylinder head (53) away from a gasket interface surface (58). The combustion chamber (50) comprises a combustion chamber roof su...
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WO/2022/199838A1 |
A piston (54) for a high compression lean-burn gasoline engine comprising a cylinder (57), an air inlet (49a, 49b) and an exhaust outlet (56a, 56b), wherein the air inlet (49a, 49b) and the exhaust outlet (56a, 56b) are arranged about a ...
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WO/2022/179910A1 |
The present invention relates to an internal combustion engine (1) comprising at least one cylinder (10), four charge-exchange ports (4) per cylinder (10), wherein a first and a second charge-exchange port (4) are each an inlet port (41)...
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WO/2022/179849A1 |
The present invention relates to an internal combustion engine (1), comprising: at least one cylinder (10); two charge-exchange ports (4) per cylinder (10), a first charge-exchange port (4) being an inlet port (41), and a second charge-e...
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WO/2022/168471A1 |
A reciprocating internal combustion engine (10) comprises: a fuel injection nozzle (18) that is arranged at the center of the top of a cylinder (12) and radially injects fuel into a combustion chamber (16); and a water supply device (22)...
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WO/2022/150757A1 |
A combustion system (300) includes a cylinder (304) having a main chamber (324) and a fuel injector (364) positioned to inject fuel into the main chamber (324). A cylinder head (316) is disposed at a top of the cylinder (304) and forms a...
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WO/2022/109632A1 |
Piston for an internal combustion engine, preferably a gas engine comprising a prechamber, comprising a piston crown (2) limiting the piston (1) on a side facing a cylinder head (14) when the piston (1) is arranged inside an internal com...
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WO/2022/112035A1 |
The present invention relates to a piston (1) for an internal combustion engine, comprising recesses for intake valves (2) and exhaust valves (3), and a surface (4) for connection between the recesses for the intake valves (2) and exhaus...
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WO/2022/106189A1 |
The invention relates to an internal combustion engine (1) comprising a combustion chamber (4) which is delimited by a cylinder (3); an injector (12) by means of which fuel can be injected into the combustion chamber (4), whereby a mixtu...
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WO/2022/069196A1 |
The invention relates to an internal combustion engine having at least one cylinder (10), having a piston (1) in the cylinder (10), which piston has a piston bowl (2), and having a cylinder head (11), wherein the cylinder piston (1) and ...
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WO/2022/066392A1 |
Operating an internal combustion engine includes conveying fuel of spray plumes of directly injected fuel out of a swirl pocket in a combustion bowl in a piston, and impinging the fuel upon an anti-sooting ramp transitioning between a ra...
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WO/2022/034387A1 |
This invention is a positive mechanical displacement mechanism and has a wide range of applications that with minor changes in the inlet and outlet valves can be used as a pump of liquid liquids with different concentrations, compressors...
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