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WO/2024/076879A3 |
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/2024/092048A1 |
A method of operating an engine includes operating the engine in first and second engine operating map regions (306 and 308) by performing passive jet ignition combustion with a first stoichiometric fuel mixture and a first volume of res...
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WO/2024/092051A1 |
An engine includes an engine block (102) having a cylinder (101), a piston (105) movably disposed in a main chamber (103) of the cylinder (101), a prechamber (117) adjacent to and in fluid communication with the main chamber (103) via a ...
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WO/2024/076645A1 |
A system and method are provided for hydrogen enriched pre-chamber ignition ammonia combustion in an internal combustion engine. The system and method implement H2-enriched ammonia combustion by combining on-board ammonia cracking with e...
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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/2024/056140A1 |
A prechamber element (2) for an igniting device (1) with a main body (3) and a prechamber cover (4), wherein the main body (3) and the prechamber cover (4) form a prechamber (5), wherein the main body (3) has an opening (6) for receiving...
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WO/2024/038789A1 |
Provided is a prechamber-type engine comprising a cylinder, a cylinder head, and a piston defining a main combustion chamber between the cylinder and the cylinder head. Inside the cylinder head, a pre-combustion chamber communicating wit...
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WO/2024/033562A1 |
The cylinder head (1) for a piston engine has a bottom surface (1A) configured to delimit a main combustion chamber (2) and a top surface (1B) facing an opposite direction and configured to receive a gas admission valve assembly (4) atta...
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WO/2023/232672A1 |
The invention relates to an air/steam engine which has one or more cylinders and a piston located therein, by which a stroke movement can be carried out. Furthermore, the air/steam engine comprises an injection nozzle and an antechamber....
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WO/2023/215126A1 |
Apparatus for providing a source of compressed air for an engine (1) having an engine cylinder (3) and an engine crank shaft (5), includes a rotatable compressor crank shaft (6), a compressor cylinder (2) defining an interior space and a...
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WO/2023/194188A1 |
The invention relates to an internal combustion engine (10), comprising at least one combustion chamber (12) and at least one prechamber spark plug (32) associated with the combustion chamber (12), the prechamber spark plug having a prec...
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WO/2023/190152A1 |
This hybrid vehicle (60) has a series travel mode and a parallel travel mode. In the series travel mode, the air-fuel mixture to be introduced into a combustion chamber (C) of an engine (10) is set to a first air-fuel ratio, and the igni...
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WO/2023/189299A1 |
An internal combustion engine (1) comprising: a cylinder (5) inside which a combustion chamber (3) is formed; a piston (7) that reciprocates within the cylinder (5); an intake port (9) for supplying air to the combustion chamber (3); a f...
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WO/2023/190154A1 |
A vehicle comprises: an engine (10) provided with an injection device (9) that supplies fuel to a combustion chamber (C) provided with an auxiliary chamber (11), and an ignition device (4) facing into the auxiliary chamber (11); and a co...
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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/2023/178367A1 |
A prechamber assembly for an internal combustion engine in which a sealing seat is formed between at least one first sleeve seat surface (12) of a prechamber sleeve (1) and at least one injector seat surface (11) of at least one fuel inj...
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WO/2023/181398A1 |
This engine comprises: a piston; a cylinder block having a cylinder in which the piston reciprocates; a cylinder head that is secured to the cylinder block, and forms a main chamber between the piston and the cylinder head; a partition w...
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WO/2023/181393A1 |
This engine comprises: a piston; a cylinder block having cylinders in which the piston performs a reciprocating motion; a cylinder head that is fixed to the cylinder block and that forms a main chamber between the cylinder head and the p...
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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/2023/164632A1 |
Systems, devices, and methods described herein provide one or more radical chemicals generators (RCGs) and/or mini-chambers (M-Cs) that can be used to provide enhanced radical ignition (ERI) in an internal combustion engine. RCGs as desc...
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WO/2023/162805A1 |
Provided are an engine knocking determination device and method for a divided chamber type engine for injecting flames from an auxiliary chamber into a main chamber for combustion therein, the engine knocking determination device compris...
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WO/2023/157050A1 |
A sub-chamber combustion four-stroke engine (1) includes a sub-chamber (20) that is in communication with a main combustion chamber (2) via a plurality of communication holes (21) and has an inner space into which a part of a sub-chamber...
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WO/2023/157382A1 |
A pre-chamber (20) of a pre-chamber-combustion four-stroke engine (1) is formed such that between the length (L1) of the internal space of a pre-chamber in a plug axial direction (DP) of a pre-chamber sparkplug (23) and the maximum lengt...
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WO/2023/157088A1 |
A pre-chamber combustion four-stroke engine (1) does not comprise an ignition assistance device that assists in ignition of a gaseous mixture, but does comprise a pre-chamber (20) that is in communication with a main combustion chamber (...
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WO/2023/153322A1 |
This engine comprises: an engine body; an intake line connected to the combustion chamber of the engine body; a first fuel line connected to the intake line, and configured to supply a first fuel to the intake line; and a second fuel lin...
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WO/2023/127221A1 |
This gas engine (1) includes: a frame (2) including a crankcase (21) in which a crankshaft (22) is accommodated; a cylinder (3) protruding from the frame (2); and a cylinder head (4) that is attached to the cylinder (3) and comprises an ...
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WO/2023/110320A1 |
The invention relates to a spark plug (1) with a longitudinal axis, comprising: a housing (2) with a hole along the spark plug longitudinal axis and a combustion-chamber-side end side (20); an isolator (3) arranged inside the housing (2)...
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WO/2023/105860A1 |
[Problem] To provide a diesel engine which makes it possible to simultaneously reduce NOx and PM. [Solution] A diesel engine 1 comprises an injector 15 for injecting fuel into an auxiliary combustion chamber 13 and is provided so as to f...
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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/2023/086413A1 |
There are provided systems and methods for the use of rich limit extenders, and in particular pre-chamber assemblies, for increasing the ability of a spark-ignition engine to operate under fuel-rich conditions. In embodiments the pre- ch...
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WO/2023/079799A1 |
This engine control apparatus controls output of an engine that comprises: a cylinder for allowing combustion of fuel-air mixture, which is a mixture of fuel injected by a fuel injection device and air taken in by an intake system, in a ...
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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/2023/048080A1 |
The present invention comprises: a main combustion chamber; an auxiliary chamber; an auxiliary chamber fuel supply line that supplies a fuel gas to the auxiliary chamber; an auxiliary chamber fuel flow rate adjustment valve that is capab...
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WO/2023/028625A1 |
Internal combustion engine, comprising: - at least one piston-cylinder unit (2) in which an air-fuel mixture, preferably an air- hydrogen mixture, is combustible, - at least one intake port (3) fluidically connected to the at least one p...
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WO/2023/024965A1 |
A combustion chamber structure of a gasoline engine, comprising: a pre-combustion chamber (1) and a main combustion chamber (2); a bottom wall of the main combustion chamber comprises a piston top wall (22) and a boss (21) disposed on th...
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WO/2023/021531A1 |
A pre-chamber ignition unit (104) comprises at least one injector holder (107) being connected to at least one fuel injector (106), a pre chamber top (108), a pre chamber bottom (110) at least one spark plug (112), being connected to the...
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WO/2023/275630A1 |
A detonation system (200/300) includes an internal combustion engine (210/310) having a combustion chamber (218), and a detonation device (250) located outside the internal combustion engine (210/310), and having a detonation chamber (25...
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WO/2022/258667A1 |
The invention relates to a method of heating a catalytic converter (40) of an internal combustion engine (1), the method comprising the steps of: igniting the gas charge in one of the cylinders (22, 24, 26, 28) in a range from 10°KW bef...
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WO/2022/251965A1 |
An improved apparatus for injecting and igniting fuel in an internal combustion engine includes a nozzle with a bore and a tip at a distal end. The bore includes a longitudinal axis and an annular valve seat. A needle reciprocates within...
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WO/2022/251889A1 |
Pre-chamber component for an internal combustion engine (10) comprising a longitudinal axis (X) and a gasket (2) for sealing a coolant jacket (3) disposed around the pre-chamber component (1) against a main combustion chamber (4) of the ...
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WO/2022/238104A1 |
The present invention relates to a prechamber spark plug comprising: - a housing (4); - a cap (6), the housing (4) and the cap (6) defining a prechamber (7); and - at least one gas exchange hole (61) and at least one flame hole (60), whi...
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WO/2022/226553A1 |
Pre-chamber assembly for an internal combustion engine (1) with a distal end, which protrudes into a main combustion chamber (5) when the pre-chamber assembly (1) is mounted in the internal combustion engine (1), and a proximal end, the ...
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WO/2022/221890A1 |
Internal combustion engine (1 ) comprising: - an intake manifold (3) which can provide gaseous medium to a plurality of piston- cylinder-units - at least one cylinder head with a plurality of piston-cylinder-units, each piston- cylinder-...
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WO/2022/223145A1 |
The present invention pertains to arrangements for a pre-chamber of a combustion engine as well as pre-chambers comprising such arrangements, in particular to condition or temper a gas flow within a gas-purged pre-chamber prior to enteri...
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WO/2022/223146A1 |
The present invention pertains to arrangements for a pre-chamber of a combustion engine as well as pre-chambers comprising such arrangements, in particular to avoid or impair backfiring or flashbacks of a combustible mixture and/or to en...
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WO/2022/207956A1 |
The prechamber (4) for a cylinder (1) of a piston engine comprises a combustion portion (5) for receiving a mixture of air and fuel for ignition of said mixture, and a nozzle portion (6) for establishing fluid communication between the c...
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WO/2022/182735A1 |
A residual gas ignitor for use in igniting a fuel-air mixture within a main combustion chamber of an engine. The residual gas ignitor includes at least one inlet/outlet port, a residual gas ignitor chamber for receiving a combustion gas ...
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WO/2022/182888A1 |
An active prechamber device (100) may include a prechamber housing (108) longitudinally aligned with a main axis (112). The active prechamber device may also include a prechamber nozzle (110) forming a cap at an end of the prechamber hou...
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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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