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US 12,650,107 B2Granted
Prechamber assembly
AssigneeInnio Jenbacher GmbH & Co OG
InventorsWolfgang Fimml, Guenther Waldner
Life of this patent
Estimating the term…
Abstract
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).
Claims20
A system, comprising:
- a prechamber assembly for an internal combustion engine, comprising:
- an elongated prechamber sleeve, comprising:
- an axis of elongation;
- at least one first opening configured to receive at least one fuel injector, for injection of hydrogen, the at least one first opening being surrounded by at least one first sleeve seat surface;
- at least one second opening configured to receive at least one igniter;
- at least one third opening having at least one second sleeve seat surface configured to contact and seal with at least one first channel seat surface of a riser channel sleeve;
- at least one prechamber volume connected to the at least one first opening, the at least one second opening, and the at least one third opening:
- at least one fuel injector configured to inject fuel into the at least one prechamber volume, the at least one fuel injector being arranged at least substantially parallel to the axis of elongation and having at least one injector seat surface configured to press against and seal with the at least one first sleeve seat surface;
- the at least one igniter configured to ignite a fuel-air-mixture inside the at least one prechamber volume, the at least one igniter protruding into the at least one second opening and having a substantially cylindrical shape and a device axis which forms an acute angle with the axis of elongation;
- the riser channel sleeve having at least one riser channel, wherein the riser channel sleeve has at least one second channel seat surface configured to contact at least one cylinder head surface of a cylinder head;
- wherein the at least one second sleeve seat surface is configured to press against the at least one first channel seat surface due to the at least one fuel injector being mounted to the cylinder head;
- and
- wherein the at least one second channel seat surface is configured to press against the at least one cylinder head surface due to the at least one fuel injector being mounted to the cylinder head.
10 more elements
A system, comprising:
- a prechamber assembly of an internal combustion engine, wherein the prechamber assembly comprises:
- a body forming a prechamber volume;
- a first opening in the body fluidly coupled to the prechamber volume, wherein the first opening is along a central axis of the body, and the first opening is configured to receive a fuel injector;
- a second opening in the body fluidly coupled to the prechamber volume, wherein the second opening is configured to receive an igniter, and the second opening is oriented at an acute angle relative to the central axis;
- and
- a third opening in the body fluidly coupled to the prechamber volume, wherein the third opening is configured to fluidly couple to a riser channel of a riser;
- wherein the body is configured to press against the riser to seat the riser with the third opening due to the fuel injector being mounted to a cylinder head;
- and
- wherein the body is configured to press the riser against the cylinder head to seat the riser with the cylinder head due to the fuel injector being mounted to the cylinder head.
6 more elements
A method, comprising:
- injecting a fuel into a prechamber volume of a body of a prechamber assembly of an internal combustion engine via a fuel injector, wherein the fuel injector is disposed in a first opening in the body along a central axis of the body;
- igniting the fuel in the prechamber volume via an igniter, wherein the igniter is disposed in a second opening in the body oriented at an acute angle relative to the central axis;
- and
- channeling through a riser channel of a riser between the prechamber volume and a main combustion chamber of the internal combustion engine, wherein the riser is disposed in a third opening in the body;
- wherein the body presses against the riser to seat the riser with the third opening due to the fuel injector being mounted to a cylinder head;
- and
- wherein the body presses the riser against the cylinder head to seat the riser with the cylinder head due to the fuel injector being mounted to the cylinder head.
4 more elements
Dependencies are inferred from the claim text.