Gas exchange valve for an internal combustion engine and internal combustion engine

An internal combustion engine comprising:

• at least one cylinder;
• at least one inlet-side gas exchange valve for charge air;
• and
• at least one exhaust-side gas exchange valve for exhaust gas,
• wherein at least one of the at least one inlet-side gas exchange valve and the at least one exhaust-side gas exchange valve comprises:
• a valve body;
• a valve stem carrying the valve body;
• a valve seat configured to mate with the valve body, wherein a closed gas exchange valve has the valve body in contact with the valve seat and an opened gas exchange valve does not have the valve body in contact with the valve seat;
• a valve guide arranged in and flush with a bore in a cylinder head and coaxially surrounding the valve stem such that a substantially constant radial gap is defined between the valve guide and the valve stem, the valve guide configured to guide the valve stem and having a radially inner groove, wherein the radially inner groove is arranged axially spaced apart from a first end of the valve guide facing the valve seat, wherein the first end of the valve guide is perpendicular to the bore in the cylinder head, and wherein an outer surface of the valve guide directly faces the cylinder head and an inner surface of the valve guide, except the radially inner groove, directly faces the valve stem;
• and
• a separate wiping element for the valve stem having a substantially rectangular cross section, which comprises a metallic material, arranged in and axially bounded by the radially inner groove of the valve guide, wherein the separate wiping element is received directly in the radially inner groove such that an outer surface of the separate wiping element directly faces the valve guide at the radially inner groove and an inner surface of the separate wiping element directly faces the valve stem.