PRE-CHAMBER IGNITION UNIT

Abstract

The invention relates to a pre-chamber ignition unit (10) for an internal combustion engine (1), with a substantially hollow cylindrical housing (11) for receiving an ignition device (14) opening into a pre-chamber (15) of the pre-chamber ignition unit (10), wherein at least one sealing and / or support ring (30, 17) is arranged in at least one sealing and / or support area (300, 170) of the pre-chamber ignition unit (10) between the ignition device (14) and the housing (11).To reduce irregular combustion events, a first sealing and / or support ring (30) in a first sealing and / or support area (300) and a second sealing and / or support ring (17) in a second sealing and / or support area (170) are arranged between the ignition device (14) and the housing (11), wherein the first sealing and / or support area (300) and the second sealing and / or support area (170) are axially spaced apart from each other with respect to a longitudinal axis (14a) of the ignition device, wherein preferably the first sealing and / or support area (300) is arranged in a first section (141) of the ignition device (14) facing the pre-chamber (15) and the second sealing and / or support area (170) is arranged in a second section (142) of the ignition device (14) facing away from the pre-chamber (15).