INNIO Jenbacher GmbH & Co OG

Arrangement for an internal combustion engine comprising a chamber component, in particular a cylinder liner and/or a crankcase, with a front face of the chamber component facing a cylinder head in a mounted state of the chamber component and a scraper ring, wherein the scraper ring extends beyond the front face of the chamber component in the direction of the cylinder head.

Cylinder head assembly for an internal combustion engine, comprising: a cylinder head having a flame deck at least partially provided for covering a main combustion chamber and a cavity for receiving a pre-chamber component, a pre-chamber component arranged inside the cavity facing the flame deck, wherein the pre-chamber component comprises a pre-chamber, wherein the pre-chamber component comprises a first sealing surface which is in contact with and preloaded against a corresponding second sealing surface of the cylinder head sealing the cavity of the cylinder head.

Internal combustion engine, comprising: at least one cylinder-piston unit, a crankcase, in which the cylinder-piston unit is at least partly arranged, and a crankcase ventilation system having a discharge line, wherein the discharge line fluidically connects the crankcase to an intake system of the cylinder-piston unit, wherein the crankcase ventilation system comprises a supply line fluidically connecting the crankcase with the intake system of the internal combustion engine or the environment.

Valve guide for guiding a valve stem of an internal combustion engine, including a first cylindrical guiding surface for guiding a valve stem of an intake valve or an exhaust valve along a guiding axis and a second cylindrical guiding surface for guiding the valve stem of the intake valve or the exhaust valve along the guiding axis. The first guiding surface and the second guiding surface are distanced axially along the guiding axis. An annular groove is provided axially between the first guiding surface and the second guiding surface for receiving an O-ring for sealing the valve stem. A radial shaft seal is provided axially distanced from the annular groove such that the second guiding surface is arranged axially between the annular groove and the radial shaft seal.

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 ).

A system includes a cylinder liner assembly configured to line a cylinder around a tight top land piston. The cylinder liner assembly includes a cylinder liner having an inner liner surface extending circumferentially about a central axis and an anti-polishing ring.

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.

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 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.

Method for operating an internal combustion engine, wherein the internal combustion engine 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, 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.