Camshaft arrangement

A camshaft arrangement, comprising:

• an adjustable camshaft and an adjuster for adjusting the camshaft,
• the camshaft having an outer shaft and an inner shaft arranged rotatably in the outer shaft, the outer shaft and the inner shaft respectively connected with at least one associated cam in a rotationally fixed manner,
• the adjuster including a stator connected with the outer shaft in a rotationally fixed manner, and a rotor,
• the rotor connected in a rotationally fixed manner with the inner shaft via an axially inserted coupling, such that a rotation of the rotor relative to the stator leads to a relative rotation of the inner shaft to the outer shaft,
• a bush connected with the rotor in a rotationally fixed manner and has at least one channel for supplying a lubricant, the at least one channel in operation for supplying with lubricant is fluidicially connected with a connection provided on an outer casing, and
• wherein the bush has on a face side that axially faces the inner shaft a form that together with a counter-form on the inner shaft provides the axially inserted coupling.

An internal combustion engine system, comprising:

• an internal combustion engine having at least two valves, and a camshaft arrangement for actuating the at least two valves, the camshaft arrangement including:
• an adjustable camshaft and an adjuster for adjusting the camshaft,
• the camshaft having an outer shaft and an inner shaft arranged rotatably in the outer shaft, the outer shaft and the inner shaft respectively connected with at least one associated cam in a rotationally fixed manner,
• the adjuster including a stator connected with the outer shaft in a rotationally fixed manner, and a rotor,
• the rotor connected in a rotationally fixed manner with the inner shaft via an axially inserted coupling, such that a rotation of the rotor relative to the stator leads to a relative rotation of the inner shaft to the outer shaft,
• a bush connected with the rotor in a rotationally fixed manner and having at least one channel for supplying a lubricant, the at least one channel in operation for supplying with lubricant is fluidicially connected with a connection provided on an outer casing,
• wherein the bush has on a face side that axially faces the inner shaft a form that together with a counter-form on the inner shaft provides the axially inserted coupling.