Gas valve for an internal combustion engine, comprising: a valve seat ( 32), and a valve body (30) movable along a longitudinal axis (33) of the valve body (30), wherein in a closed state of the gas valve (26) the valve body (30) contacts the valve seat (32) at a contact surface, wherein adjacent to the valve seat (32) there is provided a cylindrical portion (34) with a first, preferably circular, cross-section, the valve body (30) comprises a second, preferably circular, cross-section generally corresponding to the first cross- section, and the valve body (30) is at least partially arranged in the cylindrical portion (34) when the gas valve (26) is in the closed state.
F01L 3/00 - Lift valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing facesParts or accessories thereof
F01L 3/20 - Shapes or constructions of valve members, not provided for in preceding subgroups of this group
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
Gas valve, preferably a pre-chamber gas valve (2), for an internal combustion engine, comprising: - a valve housing (31) having a valve seat (32), - a valve body (30) movable along a longitudinal axis (33) arranged in the valve housing (31), and - at least one gas channel (34) arranged in the valve housing (31) configured to provide air, fuel or air-fuel mixture to be supplied to a target volume, in particular a pre-chamber (3), via a gap between the valve seat (32) and the valve body (30), wherein the valve body (30) comprises at least one recess (35) configured to fluidly connect the at least one gas channel (34) with the target volume in at least one position of the valve body (30) relative to the valve housing (31).
Pre-chamber assembly for an internal combustion engine, comprising at least one pre-chamber gas valve (2) for supplying air, fuel or an air-fuel-mixture to the pre-chamber (3), wherein the pre- chamber gas valve (2) comprises a pre-chamber gas valve seat (4) and a pre-chamber gas valve body (5), wherein a mechanical actuation system (5) for actuating the pre-chamber gas valve (2) is provided, wherein the mechanical actuation system (6) is configured to impart a motion on the pre-chamber gas valve body (5) for opening and/or closing the at least one pre-chamber gas valve ( 2).
A method for operating an internal combustion engine, including collecting a knocking signal of a knocking sensor and collecting a cylinder pressure signal of a cylinder pressure sensor. The cylinder pressure signal is representative of a cylinder pressure prevailing in at least one combustion chamber of the internal combustion engine. The method further includes determining an estimated cylinder pressure on the basis of a model and the knocking signal, and subjecting the cylinder pressure signal to a plausibility check. The method further includes, if the cylinder pressure signal is not plausible according to the plausibility check, using the estimated cylinder pressure for the operation of the internal combustion engine.
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
5.
INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME
Internal combustion engine comprising an engine controller (2) for controlling operational parameters of the internal combustion engine (1), wherein the engine controller (2) comprises a model-based controller (3) configured to employ a physical and/ or chemical engine model of the internal combustion engine (1) for controlling the operational parameters, wherein a disturbance estimator (4) is provided which is configured to estimate a model error of the engine model based on at least one disturbance quantity, wherein the at least one disturbance quantity comprises at least one of a torque and/or power and/or an angular acceleration and/or a model parameter offset of the internal combustion engine.
42 - Scientific, technological and industrial services, research and design
Goods & Services
Large reciprocating engines for power generation and gas compression used for industrial applications and replacement parts for same, and not for land vehicles. Platform-as-a-service software, namely, providing non-downloadable software for remote monitoring, operations and optimization, diagnostic services and maintenance support using artificial intelligence in the field of power generation and industrial installations, namely, power plants and reciprocating engines for power generation and gas compression.
7.
INTERNAL COMBUSTION ENGINE AND A METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
A controller configured to control a gas mixing device and/or a port injection valve and a direct fuel injector of an internal combustion engine in order to:
A controller configured to control a gas mixing device and/or a port injection valve and a direct fuel injector of an internal combustion engine in order to:
in a first operation mode, supply a first gaseous fuel to at least one main combustion chamber of the internal combustion engine via at least one intake valve, in a second operation mode, supply a second gaseous fuel to the at least one main combustion chamber of the internal combustion engine by use of the direct fuel injector, wherein a supply system for providing flushing gas to the direct fuel injector is provided and the controller is configured to activate the direct fuel injector during operation according to the first operation mode, such that the flushing gas is injected into the at least one main combustion chamber.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
8.
APPLICATOR TOOL POSITIONABLE WITHIN A VALVE SEAT BORE OF A CYLINDER HEAD FOR AN INTERNAL COMBUSTION ENGINE
An applicator tool positionable within a valve seat bore of a cylinder head for an internal combustion engine. The applicator tool includes a sealing portion extending radially outwardly from a base body of the applicator tool for sealing abutment with the valve seat bore, a wiper portion extending radially outwardly from the base body and narrower in diameter than the sealing portion, and a circumferential groove between the sealing portion and the wiper portion and recessed relative to the wiper portion, wherein the circumferential groove has a groove base which is circumferentially continuous.
An engine controller, for an internal combustion engine, is configured to:
control at least one actuator to provide an air-fuel mixture with a lambda value higher than 3 to a main combustion chamber via at least one intake valve, wherein the at least one actuator is arranged upstream of at least one intake port or which is arranged in the intake port;
control at least one fuel supply system to provide fuel directly to the main combustion chamber and/or a pre-combustion chamber of a piston-cylinder unit such that at the time of ignition of the air-fuel mixture the lambda value of that air-fuel mixture in the main combustion chamber is lower than the lambda value of the air-fuel mixture provided to the main combustion chamber via the at least one intake valve.
Internal combustion engine comprising an engine controller (2) configured to control a first control parameter and a second control parameter, characterised in that the engine controller (2) has stored a, preferably at least piecewise linear, control relationship (3) between the first control parameter and the second control parameter, and in that the engine controller (2) is configured to control the internal combustion engine (1) based on a distance (d) of an actual working point (4) of the internal combustion engine (1) from the control relationship (3), wherein the actual working point (4) comprises actual values of the first control parameter and the second control parameter.
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
An internal combustion engine includes a centrifuge, a centrifuge pump, and a controller. The centrifuge is configured to separate foreign particles from a lubricant, wherein the centrifuge is so designed that a lubricant volumetric flow directed into the centrifuge produces and/or maintains a rotational movement of the centrifuge. The centrifuge pump is configured to produce and/or increase the lubricant volumetric flow directed into the centrifuge. A controller is configured to provide control of the centrifuge pump according to a setpoint value for a kinematic operating parameter and/or for a setting parameter of the centrifuge pump. The controller is configured to gradually change the setpoint value for control of the centrifuge pump upon shutdown or starting of the centrifuge pump.
A prechamber assembly for a combustion engine includes a prechamber component having one or more transfer ports, and a housing component having an igniter housing area. The prechamber component and the housing component are coupled together to at least partially define a prechamber. The housing component includes a first portion having a first material, and a second portion having a second material different from the first material, wherein the second portion is between the prechamber and the first portion.
Method for monitoring a lubricant of a combustion engine, wherein measured numerical values are acquired with at least one sensor over a running time of a combustion engine, wherein the measured numerical values are representative of an oil quality of an engine oil of the combustion engine, wherein an oil sampling interval is adapted depending on at least one measured numerical value and/or a variable derived therefrom.
A method of producing a spark plug (1) for an internal combustion engine, wherein at least one electrode (2) is generated by welding an electrode plate (3) onto an electrode carrier (4), preferably by laser beam welding, wherein before welding the electrode plate (3) onto the electrode carrier, the electrode plate (3) is manufactured by providing a precious metal plate (5) and building up a deposition layer (6) on the precious metal plate (5) by a build-up welding process.
Spark plug connector with a connector body, which has a first end portion for inserting an end of a high-tension lead and a second end portion for receiving an end of a spark plug, wherein an electrical wiring section for transmitting a sparking voltage from the high-tension lead to the spark plug is arranged between the first end portion and the second end portion, and wherein the electrical wiring section has, adjacent to the first end portion, at least one inductor; internal combustion engine with at least one arrangement consisting of a spark plug and such a spark plug connector; and arrangement with a device to be driven mechanically and at least one such internal combustion engine for driving the device to be driven mechanically.
Pre-chamber component for an internal combustion engine comprising a longitudinal axis and a gasket for sealing a coolant jacket disposed around the pre-chamber component against a main combustion chamber of the internal combustion engine, which gasket can be braced against a cylinder head of the internal combustion engine, wherein a flange is provided on the pre-chamber component which flange is axially distanced from the gasket along the longitudinal axis in a direction away from the main combustion chamber when the pre-chamber component is mounted in the cylinder head, wherein there are provided a plurality of through holes through the flange which end in a space between the gasket and the flange.
A combustion engine for combustion of an air-fuel mixture containing air and fuel, comprising at least one temperature adjusting means for cooling or heating the air, fuel, and/or air-fuel mixture and a control unit configured to determine the methane number and/or hydrogen content of the fuel and/or air-fuel mixture, wherein the control unit is configured to control a temperature of the air, fuel and/or air-fuel mixture based on the determined methane number and/or hydrogen content by controlling the at least one temperature adjusting means.
A pre-chamber assembly of an internal combustion engine includes a supply channel configured to supply air and fuel into a pre-chamber, at least one transfer passage configured to couple the pre-chamber with a main combustion chamber, and a riser passage between the pre-chamber and the transfer passage. The riser passage is oblique relative to a longitudinal axis of the pre-chamber assembly. An ignition means and the supply channel are arranged on a proximal end of the pre-chamber assembly.
Spark plug for igniting a combustible fuel in an internal combustion engine, wherein the spark plug has an igniter arranged at an end of the spark plug facing the combustion chamber, when the spark plug is mounted in the internal combustion engine. The spark plug includes a wall and a sealing area. The wall at least partially surrounds the igniter. The sealing area is used for sealing the combustion chamber against the environment. The wall has the sealing area located at an end of the wall, which end faces the combustion chamber when the spark plug is mounted in the internal combustion engine.
An internal combustion engine includes an intake manifold, at least one cylinder head with a plurality of piston-cylinder-units, at least one ammonia source, and at least one hydrogen source. Each piston-cylinder-unit includes at least a main combustion chamber, at least one intake valve, a prechamber coupled to the main combustion chamber, and an ignition device in the prechamber. The at least one ammonia source is configured to provide ammonia to each piston-cylinder unit. The at least one hydrogen source is configured to provide hydrogen to each prechamber, wherein the at least one hydrogen source includes at least one reformer for cracking ammonia.
An internal combustion engine includes an intake manifold, at least one intercooler, at least one cylinder head with a plurality of piston-cylinder-units, at least one ammonia source, and a controller. Each piston-cylinder-unit includes at least a main combustion chamber, at least one intake valve, and an ignition device. The at least one ammonia source is configured to provide ammonia to each piston-cylinder unit as part of a combustion charge. The controller is configured to control the intercooler to provide a gaseous medium with a temperature of at least 60° C. to the intake manifold, and control a lambda of the combustion charge inside each main combustion chamber to be between 0.9 and 1.2.
Crankcase door for covering an opening (3) of a crankcase (2) of an internal combustion engine (4), wherein the crankcase door (1) comprises a base body (5) having an inner surface (6) which faces the interior of the crankcase (2) in a assembled state of the crankcase door (1), wherein the crankcase door (2) comprises at least one absorber element (8), which is arranged at the inner surface (6) of the base body (5).
A system includes a piston assembly. The piston assembly includes a crown portion having a crown, an outer wall coupled to the crown, a first inner wall disposed inside of the outer wall, a first fluid chamber disposed radially between the outer wall and the first inner wall, and an angled wall insert. An opening extends into the first fluid chamber in an axially inward direction. The outer wall, the first inner wall, the first fluid chamber, the opening, and the angled wall insert extend circumferentially about a central axis of the piston assembly. The angled wall insert is disposed in the opening, and the first fluid chamber is disposed axially between the crown and the angled wall insert.
Cylinder liner for an internal combustion engine, comprising:
a cylindrical portion having an outer diameter and an inner diameter, the inner diameter at least partly realizing a cylinder wall, when the cylinder liner is mounted in the internal combustion engine,
a circumferential recess at the inner diameter of the cylindrical portion having a larger diameter than the inner diameter of the cylinder wall, wherein the circumferential recess is located at one end of the cylindrical portion, and
a removable scraper ring,
wherein the recess comprises at least one groove, wherein a size of the scraper ring is adapted to fit into the recess and to cover the at least one groove.
B25B 27/02 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
27.
Flow guiding device, cylinder head assembly, and internal combustion engine
A flow guiding device for an internal combustion engine includes a main body substantially in the shape of a surface shell of a truncated cone and/or a cylinder and a plurality of orifices in the main body. The main body is adapted to be mounted between a cylinder head body and an ignition assembly of the internal combustion engine, and wherein the orifices are adapted to guide a cooling medium between an outside volume and an inside volume of the truncated cone or cylinder.
A pre-chamber component for an internal combustion engine includes a chamber for accommodating an air-fuel-mixture to be ignited, wherein the pre-chamber component includes a first opening into the chamber for arranging an ignition device, in particular a spark plug, and a second opening for introducing the air-fuel-mixture in the form of a mixture flow into the chamber. The pre-chamber component includes a mixture flow guiding device, which is shaped such that the mixture flow of the air-fuel-mixture in the chamber is oriented substantially transversely with respect to a longitudinal axis from the second opening of the chamber to at least a part of the chamber adjacent to the first opening and/or in the form of a turbulent flow.
An internal combustion engine includes transfer passages between a pre-chamber and a main combustion chamber, and a control unit configured to control a pre-chamber supply system coupled to the pre-chamber and a main combustion chamber supply system coupled to the main combustion chamber, wherein the control unit is configured to control the pre-chamber supply system such that a supply volume exceeds a volume of the pre-chamber and that a surplus of the supply volume is communicated to the main combustion chamber, such as during a transient operating condition.
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02B 19/12 - Engines characterised by precombustion chambers with positive ignition
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 41/10 - Introducing corrections for particular operating conditions for acceleration
30.
Piston and internal combustion engine having such a piston
Piston for an internal combustion engine, preferably a gas engine comprising a pre-chamber, comprising a piston crown limiting the piston on a side facing a cylinder head when the piston is arranged inside an internal combustion engine, wherein the piston crown comprises at least one piston bowl which has a lower surface level than a radial edge region of the piston crown, wherein the piston bowl comprises a depth (d), which is defined by the distance between the radial edge region and the lower surface level of the piston bowl measured parallel to central elevation which has a height (H), wherein the height (H) of the central elevation equals the depth (d) of the piston bowl plus/minus 50%, preferably 20%, of the depth (d) of the piston bowl.
a second operation mode, in which a majority of the fuel energy amount for the combustion in the main combustion chamber is supplied via the pre-chamber to the main combustion chamber by use of the pre-chamber intake system.
F02D 13/02 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing during engine operation
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
A spark plug of an internal combustion engine has a sealing area between a mounting portion (e.g., threads) and an end portion of a housing of the spark plug. The end portion faces a combustion chamber of the internal combustion engine. The spark plug includes a flow control element coupled to the end portion, wherein the flow control element projects beyond an igniter in a direction toward the combustion chamber.
Method for operating an internal combustion engine (1), wherein the internal combustion engine (1) is operated by an air-fuel mixture comprising a fuel mixture and air, wherein the fuel mixture comprises a first fuel, preferably natural gas, and hydrogen as a second fuel different from the first fuel, wherein a hydrogen content of the fuel mixture is determined, and at least an ignition timing is adapted as a function of the hydrogen content of the fuel mixture independent of a target power output of the internal combustion engine (1), wherein the higher the amount of hydrogen in the fuel mixture the later the ignition timing is set for at least partially compensating a shift of a center of combustion due to higher flame speed of hydrogen compared to the first fuel.
F02D 19/08 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed simultaneously using pluralities of fuels
F02D 37/02 - Non-electrical conjoint control of two or more functions of engines, not otherwise provided for one of the functions being ignition
F02D 23/00 - Controlling engines characterised by their being supercharged
F02D 35/02 - Non-electrical control of engines, dependent on conditions exterior or interior to engines, not otherwise provided for on interior conditions
A cylinder head for an internal combustion engine, wherein the cylinder head (1) comprises at least one first component part (12) and at least one second component part (13) joined to the at least one first component part (12), wherein the at least one first component part (12) is manufactured with the use of at least one of the group consisting of primary shaping, forming and cutting, wherein the at least one second component part (13) is manufactured with the use of an additive manufacturing method.
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 injector (4).
Remanufactured large reciprocating engines for power
generation and gas compression used for industrial
applications and remanufactured replacement parts for same,
and not for land vehicles.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Coolants for large reciprocating engines for power
generation and gas compression used for industrial
applications, and not for use with land vehicle engines;
chemical additives for enhancing the performance of fuel
used to power large reciprocating engines for power
generation and gas compression used for industrial
applications, and not for use with land vehicle engines.
An internal combustion engine having a prechamber with first and second sub-chambers. The first sub-chamber has a prechamber gas valve and an igniter. The second sub-chamber has a plurality of first orifices to couple with a main combustion chamber. The second sub-chamber is coupled to the first sub-chamber via a direct connection or an indirection connection. The direct connection includes at least one second orifice, such as a plurality of second orifices. The indirect connection includes a third sub-chamber, wherein the third sub-chamber is coupled to the first sub-chamber by at least one third orifice (e.g., a plurality of third orifices), and the third sub-chamber is coupled to the second sub-chamber by at least one second orifice (e.g., a plurality of second orifices).
a high energy beam, preferably a laser beam, is directed to the exposed core and a powder is melted onto the exposed core by the high energy beam such that in a contact region of the powder and the exposed core a microstructure composed of material of the core and powder is formed after resolidification of the material of the core and the powder and the core is covered by resolidified powder at the one end of the piece of wire or rod.
H01T 21/02 - Apparatus or processes specially adapted for the manufacture or maintenance of spark gaps or sparking plugs of sparking plugs
B23K 26/14 - Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beamNozzles therefor
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
(1) Coolants for large reciprocating engines for power generation and gas compression used for industrial applications, and not for use with land vehicle engines; chemical additives for enhancing the performance of fuel used to power large reciprocating engines for power generation and gas compression used for industrial applications, and not for use with land vehicle engines.
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Coolants for large reciprocating engines for power generation and gas compression used for industrial applications, and not for use with land vehicle engines; chemical additives for enhancing the performance of fuel used to power large reciprocating engines for power generation and gas compression used for industrial applications, and not for use with land vehicle engines
01 - Chemical and biological materials for industrial, scientific and agricultural use
Goods & Services
Coolants for large reciprocating engines for power generation and gas compression used for industrial applications, and not for use with land vehicle engines; chemical additives for enhancing the performance of fuel used to power large reciprocating engines for power generation and gas compression used for industrial applications, and not for use with land vehicle engines.
An internal combustion engine with at least one combustion chamber, at least one fuel delivery line for the delivery of fuel to at least one combustion chamber, and at least one differential pressure control valve for controlling the pressure in the at least one fuel delivery line. The at least one differential pressure control valve is configured to perform a valve opening or valve closing movement based on a pressure difference between the at least one fuel delivery line and a reference volume having a reference pressure. The internal combustion engine further includes at least one pressure relief valve, separate from the at least one differential pressure control valve, and configured to open to cause a pressure relief in the reference volume and a decrease in the reference pressure if a drop occurs in the power to be performed by the internal combustion engine.
Remanufactured large reciprocating engines for power generation and gas compression used for industrial applications and remanufactured replacement parts for same, and not for land vehicles.
46.
INTERNAL COMBUSTION ENGINE AND A METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
An internal combustion engine comprising: a main combustion chamber comprising at least one intake valve and at least one exhaust valve, wherein at least one intake port fluidically connected to an intake manifold is configured to supply an air and/or an air-fuel-mixture to the main combustion chamber via the at least one intake valve, and a pre-chamber which is in fluid connection with the main combustion chamber, wherein the pre-chamber is in fluid connection with the intake port and/or the intake manifold through a supply line, wherein at least one fuel injector is configured to enrich the air and/or air-fuel-mixture supplied to the main combustion chamber to have a lower ignition delay than an air-fuel-mixture supplied to the pre-chamber and/or air or air-fuel-mixture can be supplied to the pre-chamber to have a higher ignition delay than an air-fuel-mixture supplied to the main combustion chamber.
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02B 19/12 - Engines characterised by precombustion chambers with positive ignition
F02B 19/18 - Transfer passages between chamber and cylinder
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
3) of cycles of the internal combustion engine (1), in dependence on a currently present power demand per cycle of the internal combustion engine (1), to have so many piston-cylinder units (2) produce power by activation of the assigned ignition devices (8) that this results in a torque of the crankshaft (5) adapted to the currently present power demand.
An arrangement for an internal combustion engine includes a crank case, a cylinder liner disposed in a cylinder of the crank case and including a flange, and a cylinder head disposed on an end of the cylinder delimiting a combustion zone inside the cylinder liner, wherein the flange of the cylinder liner is braced between the cylinder head and the crank case, wherein a flange cooling cavity is provided, which is delimited by a circumferential surface of the flange of the cylinder liner and the cylinder head.
Internal combustion engine, preferably a flexible fuel combustion engine, comprising: - at least one main combustion chamber (4), - a gas mixing device (12) or a port injection valve, which is configured to supply a first gaseous fuel, preferably natural gas, to the main combustion chamber (4) via at least one intake valve (7), - a direct fuel injector (14), which is configured to directly inject a second gaseous fuel, preferably hydrogen, into the main combustion chamber (4) and - a control unit (11 ), which is configured to control the gas mixing device (12) and/or the port injection valve and the direct fuel injector (14) in order to ? in a first operation mode supply the first gaseous fuel to the at least one main combustion chamber (4) of the internal combustion engine (1) via the at least one intake valve (7), ? in a second operation mode supply a second gaseous fuel to the at least one main combustion chamber (4) of the internal combustion engine (1) by use of the direct fuel injector (14), wherein a supply system for providing flushing gas (16) to the direct fuel injector (14) is provided and the control unit (11) is configured to - preferably intermittently - activate the direct fuel injector (11) during operation according to the first operation mode, such that the flushing gas is injected into the at least one main combustion chamber (4).
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
50.
INTERNAL COMBUSTION ENGINE AND A METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
Internal combustion engine, preferably a flexible fuel combustion engine, comprising: - at least one main combustion chamber (4), - a gas mixing device (12) or a port injection valve, which is configured to supply a first gaseous fuel, preferably natural gas, to the main combustion chamber (4) via at least one intake valve (7), - a direct fuel injector (14), which is configured to directly inject a second gaseous fuel, preferably hydrogen, into the main combustion chamber (4) and - a control unit (11 ), which is configured to control the gas mixing device (12) and/or the port injection valve and the direct fuel injector (14) in order to • in a first operation mode supply the first gaseous fuel to the at least one main combustion chamber (4) of the internal combustion engine (1) via the at least one intake valve (7), • in a second operation mode supply a second gaseous fuel to the at least one main combustion chamber (4) of the internal combustion engine (1) by use of the direct fuel injector (14), wherein a supply system for providing flushing gas (16) to the direct fuel injector (14) is provided and the control unit (11) is configured to - preferably intermittently - activate the direct fuel injector (11) during operation according to the first operation mode, such that the flushing gas is injected into the at least one main combustion chamber (4).
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 41/40 - Controlling fuel injection of the high pressure type with means for controlling injection timing or duration
51.
INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
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 piston-cylinder unit (2) of the internal combustion engine (1), the at least one intake port (3) being fluidically separable from the at least one piston-cylinder unit (2) via at least one intake valve (4), - at least one exhaust port (3') fluidically connected to the at least one piston-cylinder unit (2) of the internal combustion engine (1), the at least one exhaust port (3') being fluidically separable from the at least one piston-cylinder unit (2) via at least one exhaust valve (4'), - a fuel supply line (5) fluidically connected to at least one fuel supply system (6), the at least one fuel supply system (6) being configured to supply fuel, preferably hydrogen, directly into a main combustion chamber (12) and/or a pre-combustion chamber (9) of the at least one piston cylinder unit (2), and - an engine control device (10) for controlling the operation of the internal combustion engine (1), wherein the control device (10) is configured to: - control at least one actuator (7') to provide an air-fuel mixture with a lambda value higher than 3 to the main combustion chamber (12) via the at least one intake valve (4), wherein the at least one actuator (7') is arranged upstream of the at least one intake port (3) or which is arranged in the intake port (3); - control the at least one fuel supply system (6) to provide fuel directly to the main combustion chamber (12) and/or the pre-combustion chamber (9) of the piston- cylinder unit (2) such that at the time of ignition of the air-fuel mixture the lambda value of that air-fuel mixture in the main combustion chamber (12) is lower than the lambda value of the air-fuel mixture provided to the main combustion chamber (12) via the at least one intake valve (4).
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02B 19/12 - Engines characterised by precombustion chambers with positive ignition
52.
INTERNAL COMBUSTION ENGINE AND METHOD FOR OPERATING AN INTERNAL COMBUSTION ENGINE
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 piston-cylinder unit (2) of the internal combustion engine (1), the at least one intake port (3) being fluidically separable from the at least one piston-cylinder unit (2) via at least one intake valve (4), - at least one exhaust port (3') fluidically connected to the at least one piston-cylinder unit (2) of the internal combustion engine (1), the at least one exhaust port (3') being fluidically separable from the at least one piston-cylinder unit (2) via at least one exhaust valve (4'), - a fuel supply line (5) fluidically connected to at least one fuel supply system (6), the at least one fuel supply system (6) being configured to supply fuel, preferably hydrogen, directly into a main combustion chamber (12) and/or a pre-combustion chamber (9) of the at least one piston cylinder unit (2), and - an engine control device (10) for controlling the operation of the internal combustion engine (1), wherein the control device (10) is configured to: - control at least one actuator (7') to provide an air-fuel mixture with a lambda value higher than 3 to the main combustion chamber (12) via the at least one intake valve (4), wherein the at least one actuator (7') is arranged upstream of the at least one intake port (3) or which is arranged in the intake port (3); - control the at least one fuel supply system (6) to provide fuel directly to the main combustion chamber (12) and/or the pre-combustion chamber (9) of the piston- cylinder unit (2) such that at the time of ignition of the air-fuel mixture the lambda value of that air-fuel mixture in the main combustion chamber (12) is lower than the lambda value of the air-fuel mixture provided to the main combustion chamber (12) via the at least one intake valve (4).
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02B 19/12 - Engines characterised by precombustion chambers with positive ignition
H02J 3/32 - Arrangements for balancing the load in a network by storage of energy using batteries with converting means
H02J 3/38 - Arrangements for parallelly feeding a single network by two or more generators, converters or transformers
H02J 3/46 - Controlling the sharing of output between the generators, converters, or transformers
H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
H02J 7/14 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
H02J 9/06 - Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over
F02B 19/12 - Engines characterised by precombustion chambers with positive ignition
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02B 19/16 - Chamber shapes or constructions not specific to groups
F02M 26/00 - Engine-pertinent apparatus for adding exhaust gases to combustion-air, main fuel or fuel-air mixture, e.g. by exhaust gas recirculation [EGR] systems
Cylinder liner (1) for an internal combustion engine, the cylinder liner (1) comprising an outer wall (2) configured to be fitted in a cylinder liner bore of a crank case (10), and an inner circular wall (3) forming at least partly a gliding surface (4) for a reciprocating piston (11) with at least one piston ring (12) during operation of the internal combustion engine, wherein in at least a part of an area (5) of the inner circular wall (3) which is not reached by the at least one piston ring (12) during reciprocation of the piston (11) a coating (6) which serves as an anti-polishing ring is arranged.
Cylinder liner (1) for an internal combustion engine, the cylinder liner (1) comprising an outer wall (2) configured to be fitted in a cylinder liner bore of a crank case (10), and an inner circular wall (3) forming at least partly a gliding surface (4) for a reciprocating piston (11) with at least one piston ring (12) during operation of the internal combustion engine, wherein in at least a part of an area (5) of the inner circular wall (3) which is not reached by the at least one piston ring (12) during reciprocation of the piston (11) a coating (6) which serves as an anti-polishing ring is arranged.
Internal combustion engine, comprising: - a plurality of piston-cylinder units (2) comprising a main combustion chamber, - an engine control device (9) for controlling the operation of the internal combustion engine (1), the engine control device (9) and the piston-cylinder units (2) being configured for combustion of an under-stoichiometric air-ammonia mixture generating an exhaust gas containing NOx, N20 and residual ammonia, - an exhaust gas aftertreatment device (10) for aftertreatment of the exhaust gas generated during operation, wherein the exhaust gas aftertreatment device (10) comprises • at least one SCR converter (4) or at least one three-way catalytic converter (5) to reduce at least the amount of NOx in the exhaust gas, • at least one ammonia slip catalyst (6) downstream the at least one SCR catalytic converter (4) or the three-way catalytic converter (5) to reduce the amount of residual ammonia in the exhaust gas, • at least one oxygen injection device (13) to inject oxygen from an oxygen source upstream or into the at least one ammonia slip catalyst (6) to provide oxygen to the at least one ammonia slip catalyst (6), wherein the engine control device (9) is configured to: - control at least one actuator (15) to provide an air-ammonia mixture with a lambda value less than one to the at least one main combustion chamber to create a relatively low amount of the N20 in the exhaust gas, and - control the amount of oxygen provided to the at least one ammonia slip catalyst (6) depending on the lambda value of the under-stoichiometric air-ammonia mixture to decrease the amount of residual ammonia in the exhaust gas.
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F01N 3/30 - Arrangements for supply of additional air
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02D 25/00 - Controlling two or more co-operating engines
F02D 41/24 - Electrical control of supply of combustible mixture or its constituents characterised by the use of digital means
59.
Internal combustion engine with exhaust gas aftertreatment and control of the nitrogen oxide emissions
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
F01N 3/20 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by methods of operationControl specially adapted for catalytic conversion
F01N 3/08 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
F01N 3/10 - Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
F01N 11/00 - Monitoring or diagnostic devices for exhaust-gas treatment apparatus
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 internal combustion engine (10), which gasket (2) can be braced against a cylinder head (5) of the internal combustion engine (10), wherein a flange (6) is provided on the pre-chamber component (1) which flange (6) is axially distanced from the gasket (2) along the longitudinal axis (X) in a direction away from the main combustion chamber (4) when the pre-chamber component (1) is mounted in the cylinder head (5), wherein there are provided a plurality of through holes (7) through the flange (6) which end in a space between the gasket (2) and the flange (6).
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 internal combustion engine (10), which gasket (2) can be braced against a cylinder head (5) of the internal combustion engine (10), wherein a flange (6) is provided on the pre-chamber component (1) which flange (6) is axially distanced from the gasket (2) along the longitudinal axis (X) in a direction away from the main combustion chamber (4) when the pre-chamber component (1) is mounted in the cylinder head (5), wherein there are provided a plurality of through holes (7) through the flange (6) which end in a space between the gasket (2) and the flange (6).
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 pre-chamber assembly (1) comprising: - a supply channel (6) fluidically connected with a pre-chamber (3) for supplying air, fuel or an air-fuel-mixture to the pre-chamber (3), which supply channel (6) is disposed on the proximal end of the pre-chamber assembly (1), - at least one transfer passage (11) fluidically connecting the pre-chamber (3) with the main combustion chamber (5) when the pre-chamber assembly (1 ) is mounted in the internal combustion engine (4) and - a riser passage (12), which riser passage (12) fluidically connects the pre-chamber (3) with the at last one transfer passage (11), wherein the riser passage is oblique with respect to a longitudinal axis (10) of the pre-chamber assembly, ignition means (9) for igniting an air-fuel-mixture in the pre-chamber (3), the ignition means (9) being arranged on the proximal end of the pre-chamber assembly (1), wherein the ignition means (9) comprises a sealing area configured to seal the pre-chamber (3) against the environment and a mounting portion, wherein the sealing area of the ignition means (9) is arranged between the mounting portion of the ignition means (9) and the pre-chamber (3).
An internal combustion engine includes a centrifuge, a centrifuge pump, and a controller. The centrifuge is configured to separate foreign particles from a lubricant, wherein the centrifuge is so designed that a lubricant volumetric flow directed into the centrifuge produces and/or maintains a rotational movement of the centrifuge. The centrifuge pump is configured to produce and/or increase the lubricant volumetric flow directed into the centrifuge. A controller is configured to provide control of the centrifuge pump according to a setpoint value for a kinematic operating parameter and/or for a setting parameter of the centrifuge pump. The controller is configured to gradually change the setpoint value for control of the centrifuge pump upon shutdown or starting of the centrifuge pump.
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 pre-chamber assembly (1) comprising: - a supply channel (6) fluidically connected with a pre-chamber (3) for supplying air, fuel or an air-fuel-mixture to the pre-chamber (3), which supply channel (6) is disposed on the proximal end of the pre-chamber assembly (1), - at least one transfer passage (11) fluidically connecting the pre-chamber (3) with the main combustion chamber (5) when the pre-chamber assembly (1 ) is mounted in the internal combustion engine (4) and - a riser passage (12), which riser passage (12) fluidically connects the pre-chamber (3) with the at last one transfer passage (11), wherein the riser passage is oblique with respect to a longitudinal axis (10) of the pre-chamber assembly, ignition means (9) for igniting an air-fuel-mixture in the pre-chamber (3), the ignition means (9) being arranged on the proximal end of the pre-chamber assembly (1), wherein the ignition means (9) comprises a sealing area configured to seal the pre-chamber (3) against the environment and a mounting portion, wherein the sealing area of the ignition means (9) is arranged between the mounting portion of the ignition means (9) and the pre-chamber (3).
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-unit having at least ? a main combustion chamber (2) for combustion of a combustion charge, a volume of the main combustion chamber (2) being defined by the at least one cylinder head and a reciprocally moving piston ? at least one intake valve for coupling the main combustion chamber (2) to the intake manifold (3) ? a prechamber (19) which is coupled to the main combustion chamber (2) ? an ignition device arranged in the prechamber (19) to start combustion of the combustion charge indirectly via flame torches which enter the main combustion chamber (2) from the prechamber (19) and are created by the ignition of an ignitable air-fuel-mixture inside the prechamber (19) - at least one ammonia source (13, 14) for providing ammonia to each piston- cylinder-unit ? via the intake manifold (3) and the at least one intake valve as part of gaseous medium in form of a mixture of at least air and ammonia as part of the combustion charge and ? via at least one prechamber valve (20) provided to the prechamber (19) - at least one hydrogen source for providing hydrogen to the prechambers via the at least one prechamber valve of each piston-cylinder-unit, the at least one hydrogen source comprising at least one reformer (15) for cracking ammonia.
Internal combustion engine (1 ) comprising: - an intake manifold (3) which can provide gaseous medium to a plurality of piston- cylinder-units - at least one intercooler (10) coupled to the intake manifold (3) - at least one cylinder head with a plurality of piston-cylinder-units, each piston-cylinder-unit having at least • a cylindrical main combustion chamber (2) for combustion of a combustion charge, a volume of the main combustion chamber (2) being defined by the at least one cylinder head and a reciprocally moving piston, the motion of the piston defining a variable volume geometry of the main combustion chamber having a geometrical compression ratio between 12 and 22 • at least one intake valve coupled to the intake manifold (3) • an ignition device to start combustion of the combustion charge - at least one ammonia source (13, 14) for providing ammonia to each piston- cylinder-unit as part of the combustion charge • via the intake manifold (3) and the at least one intake valve as part of gaseous medium in form of a mixture of at least air and ammonia and/or • via at least one further valve provided to the piston-cylinder-unit - a control device (12) to operate the internal combustion engine (1 ), the control device (12) being configured to at least • control the intercooler (10) to provide gaseous medium with a temperature of at least 60 °C to the intake manifold, and • control a lambda of the combustion charge inside each main combustion chamber (2) to be between 0,9 and 1,2.
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02C 3/24 - Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being liquid at standard temperature and pressure
F02C 7/224 - Heating fuel before feeding to the burner
F02G 5/02 - Profiting from waste heat of exhaust gases
Internal combustion engine (1 ) comprising: - an intake manifold (3) which can provide gaseous medium to a plurality of piston- cylinder-units - at least one intercooler (10) coupled to the intake manifold (3) - at least one cylinder head with a plurality of piston-cylinder-units, each piston-cylinder-unit having at least ? a cylindrical main combustion chamber (2) for combustion of a combustion charge, a volume of the main combustion chamber (2) being defined by the at least one cylinder head and a reciprocally moving piston, the motion of the piston defining a variable volume geometry of the main combustion chamber having a geometrical compression ratio between 12 and 22 ? at least one intake valve coupled to the intake manifold (3) ? an ignition device to start combustion of the combustion charge - at least one ammonia source (13, 14) for providing ammonia to each piston- cylinder-unit as part of the combustion charge ? via the intake manifold (3) and the at least one intake valve as part of gaseous medium in form of a mixture of at least air and ammonia and/or ? via at least one further valve provided to the piston-cylinder-unit - a control device (12) to operate the internal combustion engine (1 ), the control device (12) being configured to at least ? control the intercooler (10) to provide gaseous medium with a temperature of at least 60 °C to the intake manifold, and ? control a lambda of the combustion charge inside each main combustion chamber (2) to be between 0,9 and 1,2.
F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02C 3/24 - Gas-turbine plants characterised by the use of combustion products as the working fluid using a special fuel, oxidant, or dilution fluid to generate the combustion products the fuel or oxidant being liquid at standard temperature and pressure
F02C 7/224 - Heating fuel before feeding to the burner
F02G 5/02 - Profiting from waste heat of exhaust gases
F02M 21/02 - Apparatus for supplying engines with non-liquid fuels, e.g. gaseous fuels stored in liquid form for gaseous fuels
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-unit having at least • a main combustion chamber (2) for combustion of a combustion charge, a volume of the main combustion chamber (2) being defined by the at least one cylinder head and a reciprocally moving piston • at least one intake valve for coupling the main combustion chamber (2) to the intake manifold (3) • a prechamber (19) which is coupled to the main combustion chamber (2) • an ignition device arranged in the prechamber (19) to start combustion of the combustion charge indirectly via flame torches which enter the main combustion chamber (2) from the prechamber (19) and are created by the ignition of an ignitable air-fuel-mixture inside the prechamber (19) - at least one ammonia source (13, 14) for providing ammonia to each piston- cylinder-unit • via the intake manifold (3) and the at least one intake valve as part of gaseous medium in form of a mixture of at least air and ammonia as part of the combustion charge and • via at least one prechamber valve (20) provided to the prechamber (19) - at least one hydrogen source for providing hydrogen to the prechambers via the at least one prechamber valve of each piston-cylinder-unit, the at least one hydrogen source comprising at least one reformer (15) for cracking ammonia.
3) of cycles of the internal combustion engine (1), in dependence on a currently present power demand per cycle of the internal combustion engine (1), to have so many piston-cylinder units (2) produce power by activation of the assigned ignition devices (8) that this results in a torque of the crankshaft (5) adapted to the currently present power demand.
Spark plug for igniting a combustible fuel in an internal combustion engine, wherein the spark plug has an igniter arranged at an end of the spark plug facing the combustion chamber, when the spark plug is mounted in the internal combustion engine. The spark plug includes a wall and a sealing area. The wall at least partially surrounds the igniter. The sealing area is used for sealing the combustion chamber against the environment. The wall has the sealing area located at an end of the wall, which end faces the combustion chamber when the spark plug is mounted in the internal combustion engine.
there is provided at least one removal device, by means of which at least a part of the lubricating oil collected in the at least one collecting container is removable from the at least one oil circuit.
wherein the cooling of the at least one internal combustion engine (1) is effected—at least partially—using the at least one additional cooling device (12) when a transient performance requirement for the at least one internal combustion engine (1) occurs.
F01P 3/20 - Cooling circuits not specific to a single part of engine or machine
F02G 5/00 - Profiting from waste heat of combustion engines, not otherwise provided for
F24D 18/00 - Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply
F24D 101/70 - Electric generators driven by internal combustion engines [ICE]
73.
Method of synchronizing a generator with a power supply network
wherein at least one temporary change in an ignition timing of at least one cylinder unit of the internal combustion engine is performed to reduce the phase angle difference (Δφ).
H02J 3/44 - Synchronising a generator for connection to a network or to another generator with means for ensuring correct phase sequence
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
Pre-chamber for an internal combustion engine, preferably gas engine, comprising: - a pre-chamber body (2); - a pre-chamber volume (3) which is surrounded by the pre-chamber body (3); and - a pre-chamber tip portion (4) comprising at least two, preferably more than two, spray nozzles (5), wherein the at least two spray nozzles (5) are in fluid communication with the pre-chamber volume (3), and the pre-chamber tip portion (4) is affixed to the pre-chamber body (2) by a welding process or a brazing process; wherein the pre-chamber body (2) consists of a material with higher thermal conductivity than the pre-chamber tip portion (4).
Pre-chamber for an internal combustion engine, preferably gas engine, comprising: - a pre-chamber body (2); - a pre-chamber volume (3) which is surrounded by the pre-chamber body (3); and - a pre-chamber tip portion (4) comprising at least two, preferably more than two, spray nozzles (5), wherein the at least two spray nozzles (5) are in fluid communication with the pre-chamber volume (3), and the pre-chamber tip portion (4) is affixed to the pre-chamber body (2) by a welding process or a brazing process; wherein the pre-chamber body (2) consists of a material with higher thermal conductivity than the pre-chamber tip portion (4).
Cylinder liner for an internal combustion engine (1), comprising: - a cylindrical portion having an outer diameter and an inner diameter, the inner diameter at least partly realizing a cylinder wall, when the cylinder liner (2) is mounted in the internal combustion engine (1), - a circumferential recess (8) at the inner diameter of the cylindrical portion having a larger diameter than the inner diameter of the cylinder wall, wherein the circumferential recess (8) is located at one end of the cylindrical portion, and - a removable scraper ring (9), wherein the recess (8) comprises at least one groove (10), wherein a size of the scraper ring (9) is adapted to fit into the recess (8) and to cover the at least one groove (10).
Cylinder liner for an internal combustion engine (1), comprising: - a cylindrical portion having an outer diameter and an inner diameter, the inner diameter at least partly realizing a cylinder wall, when the cylinder liner (2) is mounted in the internal combustion engine (1), - a circumferential recess (8) at the inner diameter of the cylindrical portion having a larger diameter than the inner diameter of the cylinder wall, wherein the circumferential recess (8) is located at one end of the cylindrical portion, and - a removable scraper ring (9), wherein the recess (8) comprises at least one groove (10), wherein a size of the scraper ring (9) is adapted to fit into the recess (8) and to cover the at least one groove (10).
Internal combustion engine, preferably a gas engine, comprising a pre-chamber (3) having a pre-chamber intake system (4) and a main combustion chamber (2) having a main combustion chamber intake system (5), wherein by use of the intake systems (4, 5) a predetermined amount of energy of fuel can be supplied to the main combustion chamber (2) for a combustion, wherein a control unit (29) is configured to control the intake systems (4, 5) according to the following operation modes: - a first operation mode, in which a majority of a fuel energy amount for the combustion in the main combustion chamber (2) is supplied directly to the main combustion chamber (2) by use of the main combustion chamber intake system (5), and - a second operation mode, in which a majority of the fuel energy amount for the combustion in the main combustion chamber (2) is supplied via the pre-chamber (3) to the main combustion chamber (2) by use of the pre-chamber intake system (4).
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
80.
PISTON AND INTERNAL COMBUSTION ENGINE HAVING SUCH A PISTON
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 combustion engine, wherein the piston crown (2) comprises at least one piston bowl (3) which has a lower surface level than a radial edge region (4) of the piston crown (2), wherein the piston bowl (3) comprises a depth (d), which is defined by the distance between the radial edge region (4) and the lower surface level of the piston bowl (3) measured parallel to a center line (6) of the piston (1), wherein the piston crown (2) comprises a central elevation (5) which has a height (H), wherein the height (H) of the central elevation equals the depth (d) of the piston bowl plus/minus 50%, preferably 20%, of the depth (d) of the piston bowl (2).
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 combustion engine, wherein the piston crown (2) comprises at least one piston bowl (3) which has a lower surface level than a radial edge region (4) of the piston crown (2), wherein the piston bowl (3) comprises a depth (d), which is defined by the distance between the radial edge region (4) and the lower surface level of the piston bowl (3) measured parallel to a center line (6) of the piston (1), wherein the piston crown (2) comprises a central elevation (5) which has a height (H), wherein the height (H) of the central elevation equals the depth (d) of the piston bowl plus/minus 50%, preferably 20%, of the depth (d) of the piston bowl (2).
Internal combustion engine, preferably a gas engine, comprising a pre-chamber (3) having a pre-chamber intake system (4) and a main combustion chamber (2) having a main combustion chamber intake system (5), wherein by use of the intake systems (4, 5) a predetermined amount of energy of fuel can be supplied to the main combustion chamber (2) for a combustion, wherein a control unit (29) is configured to control the intake systems (4, 5) according to the following operation modes: - a first operation mode, in which a majority of a fuel energy amount for the combustion in the main combustion chamber (2) is supplied directly to the main combustion chamber (2) by use of the main combustion chamber intake system (5), and - a second operation mode, in which a majority of the fuel energy amount for the combustion in the main combustion chamber (2) is supplied via the pre-chamber (3) to the main combustion chamber (2) by use of the pre-chamber intake system (4).
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02B 43/10 - Engines or plants characterised by use of other specific gases, e.g. acetylene, oxyhydrogen
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
F02D 19/06 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with pluralities of fuels, e.g. alternatively with light and heavy fuel oil, other than engines indifferent to the fuel consumed
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
Internal combustion engine, in particular gas engine, comprising - a main combustion chamber (2), - a pre-chamber (3), - transfer passages (4) from the pre-chamber (3) into the main combustion chamber (2), - a pre-chamber supply system (5) for fuel or air-fuel mixture supply, - a main combustion chamber supply system (7) for air or air-fuel mixture supply, and - a control unit (8) configured to control the pre-chamber supply system (5), such that a fuel or mixture supply volume exceeds the volume of the pre-chamber (3) and that a surplus of the supply volume is communicated to the main combustion chamber (2) through the transfer passages (4) for mixing of the supply volume supplied to the pre-chamber (3) with the air or the second air fuel mixture supplied to the main combustion chamber (2), preferably during a transient operation condition.
F02D 41/10 - Introducing corrections for particular operating conditions for acceleration
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02B 19/00 - Engines characterised by precombustion chambers
F02B 19/08 - Engines characterised by precombustion chambers the chamber being of air-swirl type
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02D 41/38 - Controlling fuel injection of the high pressure type
Internal combustion engine, in particular gas engine, comprising - a main combustion chamber (2), - a pre-chamber (3), - transfer passages (4) from the pre-chamber (3) into the main combustion chamber (2), - a pre-chamber supply system (5) for fuel or air-fuel mixture supply, - a main combustion chamber supply system (7) for air or air-fuel mixture supply, and - a control unit (8) configured to control the pre-chamber supply system (5), such that a fuel or mixture supply volume exceeds the volume of the pre-chamber (3) and that a surplus of the supply volume is communicated to the main combustion chamber (2) through the transfer passages (4) for mixing of the supply volume supplied to the pre-chamber (3) with the air or the second air fuel mixture supplied to the main combustion chamber (2), preferably during a transient operation condition.
F02B 19/00 - Engines characterised by precombustion chambers
F02B 19/08 - Engines characterised by precombustion chambers the chamber being of air-swirl type
F02B 19/10 - Engines characterised by precombustion chambers with fuel introduced partly into pre-combustion chamber, and partly into cylinder
F02D 19/02 - Controlling engines characterised by their use of non-liquid fuels, pluralities of fuels, or non-fuel substances added to the combustible mixtures peculiar to engines working with gaseous fuels
F02D 41/00 - Electrical control of supply of combustible mixture or its constituents
F02D 41/10 - Introducing corrections for particular operating conditions for acceleration
F02D 41/38 - Controlling fuel injection of the high pressure type
An internal combustion engine with at least one combustion chamber, at least one fuel delivery line for the delivery of fuel to at least one combustion chamber, and at least one differential pressure control valve for controlling the pressure in the at least one fuel delivery line. The at least one differential pressure control valve is configured to perform a valve opening or valve closing movement based on a pressure difference between the at least one fuel delivery line and a reference volume having a reference pressure. The internal combustion engine further includes at least one pressure relief valve, separate from the at least one differential pressure control valve, and configured to open to cause a pressure relief in the reference volume and a decrease in the reference pressure if a drop occurs in the power to be performed by the internal combustion engine.
Spark plug for igniting a combustible fuel in an internal combustion engine, comprising: - a mounting portion, in particular a thread, for mounting the spark plug in the internal combustion engine, - an ignition means (2) which faces the combustion chamber, when the spark plug (1) is mounted in the internal combustion engine, and - a sealing area (4), in particular of conical shape, for sealing the combustion chamber against the environment, wherein a housing (3) of the spark plug (1) comprises the sealing area (4) and the sealing area (4) is located between the mounting portion and an end portion of the housing (3), which end portion faces the combustion chamber when the spark plug (1) is mounted in the internal combustion engine, wherein the spark plug (1) further comprises a flow control element (20) attached to or integrated in the end portion of the housing (3), wherein the flow control element (20) projects beyond the ignition means (2) in a direction towards the combustion chamber when the spark plug (1) is mounted in the internal combustion engine.
Spark plug for igniting a combustible fuel in an internal combustion engine, comprising: - a mounting portion, in particular a thread, for mounting the spark plug in the internal combustion engine, - an ignition means (2) which faces the combustion chamber, when the spark plug (1) is mounted in the internal combustion engine, and - a sealing area (4), in particular of conical shape, for sealing the combustion chamber against the environment, wherein a housing (3) of the spark plug (1) comprises the sealing area (4) and the sealing area (4) is located between the mounting portion and an end portion of the housing (3), which end portion faces the combustion chamber when the spark plug (1) is mounted in the internal combustion engine, wherein the spark plug (1) further comprises a flow control element (20) attached to or integrated in the end portion of the housing (3), wherein the flow control element (20) projects beyond the ignition means (2) in a direction towards the combustion chamber when the spark plug (1) is mounted in the internal combustion engine.
A cylinder head for an internal combustion engine, wherein the cylinder head (1) comprises at least one first component part (12) and at least one second component part (13) joined to the at least one first component part (12), wherein the at least one first component part (12) is manufactured with the use of at least one of the group consisting of primary shaping, forming and cutting, wherein the at least one second component part (13) is manufactured with the use of an additive manufacturing method.
A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity of the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) for a given cross-sectional area immediately downstream of the prechamber gas valve (5) is of such a length that in operation of the cylinder head (2) mounted in an internal combustion engine in a compression stroke of the combustion process propellant gas which flow out of the prechamber gas valve (5) forms a gas cushion at least in a first portion (8) of the flow transfer passage (10), that adjoins the prechamber gas valve (5).
Pre-chamber component for an internal combustion engine comprising a chamber (3) for accommodating an air-fuel-mixture to be ignited, wherein - a first opening (4) into the chamber (3) for arranging an ignition device (5), in particular a spark plug, is provided and - a second opening (6) for introducing the air-fuel-mixture in the form of a mixture flow into the chamber (3) is provided, wherein a mixture flow guiding device (7) is provided, which is shaped such, that the mixture flow of the air-fuel-mixture in the chamber (3) is - oriented substantially transversely with respect to a longitudinal axis (X) from the second opening (6) of the chamber (3) to at least a part of the chamber adjacent to the first opening and/or - in the form of a turbulent flow.
A cylinder head for an internal combustion engine comprising a prechamber (3), wherein a prechamber gas valve (5) is fitted into a cavity in the cylinder head (2) and the prechamber gas valve (5) is connected to the prechamber (3) by way of a flow transfer passage (10), wherein the flow transfer passage (10) has a first portion (8) adjoining the prechamber gas valve (5) and a second portion (1) into which the first portion (8) opens, wherein the second portion (1) extends at least around a part of a periphery of the prechamber (3), wherein the second portion (1) has an uninterrupted peripheral surface apart from that opening (7) with which it passes into the prechamber (3).
F02D 29/06 - Controlling engines, such controlling being peculiar to the devices driven thereby, the devices being other than parts or accessories essential to engine operation, e.g. controlling of engines by signals external thereto peculiar to engines driving electric generators
96.
FLOW GUIDING DEVICE, CYLINDER HEAD ASSEMBLY, AND INTERNAL COMBUSTION ENGINE
Flow guiding device for an internal combustion engine including - a main body (2) substantially in the shape of a surface shell of a truncated cone and/or a cylinder and - a plurality of orifices (3) in the main body (2), wherein the main body (2) is adapted to be mounted between a cylinder head body (4) and an ignition assembly (5) of the internal combustion engine and wherein the orifices (3) are adapted to guide a cooling medium between an outside volume and an inside volume of the truncated cone or cylinder.
Flow guiding device for an internal combustion engine including - a main body (2) substantially in the shape of a surface shell of a truncated cone and/or a cylinder and - a plurality of orifices (3) in the main body (2), wherein the main body (2) is adapted to be mounted between a cylinder head body (4) and an ignition assembly (5) of the internal combustion engine and wherein the orifices (3) are adapted to guide a cooling medium between an outside volume and an inside volume of the truncated cone or cylinder.
Method for manufacturing an assembly of a center pin (20) and a middle electrode carrier (13) or a middle electrode (6), respectively, for a spark plug (1), which spark plug (1) can be used for igniting a combustible air-fuel-mixture in an internal combustion engine, wherein a piece (19) of wire or rod is provided having, preferably over its length, a core (21) of a first material which is surrounded by an outer layer (22) of a second material, the second material being different from the first material, wherein the core is exposed at one end of the piece of wire or rod a middle electrode carrier (13) or a middle electrode (6), respectively, is provided at said one end of the piece (19) of wire or rod a high energy beam, preferably a laser beam, is directed to the exposed core (21) and a powder is melted onto the exposed core (21) by the high energy beam such that in a contact region (18) of the powder and the exposed core (21) a microstructure composed of material of the core (21) and powder is formed after resolidification of the material of the core (21) and the powder and the core (21) is covered by resolidified powder (25) at the one end of the piece of wire or rod.
Method for manufacturing an assembly of a center pin (20) and a middle electrode carrier (13) or a middle electrode (6), respectively, for a spark plug (1), which spark plug (1) can be used for igniting a combustible air-fuel-mixture in an internal combustion engine, wherein a piece (19) of wire or rod is provided having, preferably over its length, a core (21) of a first material which is surrounded by an outer layer (22) of a second material, the second material being different from the first material, wherein the core is exposed at one end of the piece of wire or rod a middle electrode carrier (13) or a middle electrode (6), respectively, is provided at said one end of the piece (19) of wire or rod a high energy beam, preferably a laser beam, is directed to the exposed core (21) and a powder is melted onto the exposed core (21) by the high energy beam such that in a contact region (18) of the powder and the exposed core (21) a microstructure composed of material of the core (21) and powder is formed after resolidification of the material of the core (21) and the powder and the core (21) is covered by resolidified powder (25) at the one end of the piece of wire or rod.
