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US 12,085,009 B2Granted
Internal combustion engine with spark plug and prechamber spark plug
AssigneeRobert Bosch GmbH
InventorsAlexander Eichhorn, Alexander Hettinger
Life of this patent
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Abstract
The present disclosure relates to an internal combustion engine, comprising: at least one cylinder; two charge-exchange ports per cylinder, a first charge-exchange port being an inlet port, and a second charge-exchange port being an outlet port; and one spark plug and one prechamber spark plug per each cylinder.
Claims19
An internal combustion engine comprising:
- at least one cylinder;
- only two charge-exchange ports per the at least one cylinder, wherein
- a first charge-exchange port is an inlet port, and
- a second charge-exchange port is an outlet port;
- and
- one spark plug and one prechamber spark plug per the at least one cylinder,
- wherein
- the spark plug and/or the prechamber spark plug is arranged on a combustion chamber roof of a combustion chamber of the at least one cylinder, and
- the prechamber spark plug is arranged closer to a sidewall of the at least one cylinder than the spark plug or the spark plug is arranged closer to the center point of the combustion chamber roof than the prechamber spark plug.
6 more elements
A method for operating an internal combustion engine having at least one cylinder, wherein the internal combustion engine comprises only two charge-exchange ports and a spark plug and a prechamber spark plug per at least one cylinder, comprising:
- operating the spark plug and/or the prechamber spark plug to ignite a fuel/air mixture within a combustion chamber of the at least one cylinder,
- wherein
- the spark plug and/or the prechamber spark plug is arranged on a combustion chamber roof of a combustion chamber of the at least one cylinder, and
- the prechamber spark plug is arranged closer to a sidewall of the at least one cylinder than the spark plug or the spark plug is arranged closer to the center point of the combustion chamber roof than the prechamber spark plug.
1 more element
Dependencies are inferred from the claim text.