Prechamber arrangement, cylinder head and piston engine

The prechamber arrangement for a piston engine comprises a body part (1) forming the first end (4A) of the prechamber (4) and a separate a nozzle part (2) for discharging fluids from the prechamber (4) into the main combustion chamber (7) of the cylinder. The nozzle part (2) is arranged to protrude into the body part (1) and comprises at least one nozzle opening (5) and a conduit (6) for establishing fluid communication between the nozzle opening (5) and the prechamber (4), and the body part (1) comprises a support surface (9) for supporting the body part (1) against a contact surface (10) of the cylinder head (8) in the longitudinal direction of the cylinder. 用于活塞发动机的预燃室装置包括形成预燃室(4)的第端(4A)的本体部分(1)以及用于将流体从预燃室排出到气缸的主燃烧室(7)的单独的喷嘴部分(2)。喷嘴部分(2)布置为突出到本体部分(1)中并且包括至少个喷嘴开口(5)和用于在喷嘴开口(5)与预燃室(4)之间建立流体连通的导管(6)，并且本体部分(1)包括用于支持本体部分(1)在气缸的纵向方向上靠着气缸盖(8)接触表面(10)的支持表面(9)。