US 12,031,512 B2
Ignition apparatus having a pre-chamber which is coupled rotatably without offset to an ignition source, internal combustion engine having an ignition apparatus, and motor vehicle having an internal combustion engine
Reinhard Aschenbrenner, Lengdorf (DE); and Manfred Fraenk, Munich (DE)
Assigned to Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
Appl. No. 18/038,346
Filed by Bayerische Motoren Werke Aktiengesellschaft, Munich (DE)
PCT Filed Nov. 22, 2021, PCT No. PCT/EP2021/082425
§ 371(c)(1), (2) Date May 23, 2023,
PCT Pub. No. WO2022/128342, PCT Pub. Date Jun. 23, 2022.
Claims priority of application No. 10 2020 133 717.5 (DE), filed on Dec. 16, 2020.
Prior Publication US 2023/0417211 A1, Dec. 28, 2023
Int. Cl. F02P 13/00 (2006.01); F02P 3/01 (2006.01)
CPC F02P 13/00 (2013.01) [F02P 3/01 (2013.01)] 15 Claims
OG exemplary drawing
 
1. An ignition apparatus for an internal combustion engine, comprising:
at least one pre-chamber; and
at least one ignition source,
wherein the at least one pre-chamber is configured to be coupled to the at least one ignition source such that it can be rotated without offset in a longitudinal extent direction of the ignition apparatus about a center axis of the ignition apparatus between at least two rotational orientation positions of the pre-chamber relative to the ignition source, and
wherein the at least one pre-chamber is configured to be released reversibly from the at least one ignition source when rotated to at least one decoupling rotational orientation position relative to the ignition source, and to be spaced apart from the ignition source in the longitudinal extent direction.