Invention Grant
- Patent Title: Supply of an active prechamber for turbocharged gasoline engines with an air extraction downstream of an exhaust gas turbocharger
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Application No.: US17074142Application Date: 2020-10-19
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Publication No.: US11319904B2Publication Date: 2022-05-03
- Inventor: Karsten Michels , Dirk Hagelstein
- Applicant: Volkswagen Aktiengesellschaft
- Applicant Address: DE Wolfsburg
- Assignee: Volkswagen Aktiengesellschaft
- Current Assignee: Volkswagen Aktiengesellschaft
- Current Assignee Address: DE Wolfsburg
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- Priority: DE102019128111.3 20191017
- Main IPC: F02B19/10
- IPC: F02B19/10 ; F02M26/06 ; F02M26/08 ; F02B19/00

Abstract:
An internal combustion engine having at least one cylinder that has a main combustion chamber for burning a fuel/air mixture or a fuel/air/exhaust gas mixture and has a flushed prechamber connected to the main combustion chamber via at least one overflow duct on the fluid side. At least one exhaust gas turbocharger is provided that has a turbine for the expansion of the at exhaust gas leaving the at least one cylinder and a compressor for compressing fresh air or a fresh air/exhaust gas mixture to be supplied to the at least one cylinder as compressed charge-air. In a charge-air line downstream of the compressor, an extraction point is formed from which a flushing line branches off, via which a partial amount of charge-air of the compressed charge-air for flushing the at least one prechamber can be extracted.
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