Axial piston engine

The invention relates to an axial piston engine ( 1 ), comprising a housing ( 2 ) in whose inner compartment ( 4 ) a cylinder drum ( 17 ) and a swash plate ( 26 ) located axially adjacent thereto are situated. Several piston bores ( 21 ) which extend approximately parallel to the central axis of the cylinder drum ( 17 ) are located in the same, pistons ( 23 ) being displaceably guided in said piston bores. The ends of said pistons facing towards the swash plate ( 26 ) are supported on said swash plate ( 26 ). A driving shaft ( 7 ) is rotatably mounted in the housing ( 2 ) and is connected to an engine part in a rotationally fixed manner by a multitooth coupling ( 19 ) comprising teeth ( 43 a, 44 a ) and tooth spaces ( 43 b, 44 b ) which alternate regularly in a peripheral direction and which engage with each other. At least one feedthrough channel ( 45 ) which extends essentially parallel to the axis of rotation of the drive shaft ( 7 ) and from one side of the multitooth coupling ( 19 ) to the other is located in the area of said multitooth coupling ( 19 ). The aim of the invention is to obtain a flow feedthrough and/or a mechanical feedthrough from one side of the multitooth coupling to the other while ensuring that the multitooth coupling is stable and simple to produce. To this end the feedthrough channel ( 45 ) is located between at least one tooth crown surface ( 43 d ) and a tooth space bottom ( 44 d ) located opposite.