Oil separating device for the crankcase ventilation of an internal combustion engine

An oil separating device (10) for the crankcase ventilation of an internal combustion engine, comprising:

• a carrier (11) comprising a gas inlet line (12) for flowing blow-by gas (13) having an inlet end and an outlet end;
• and
• a gap-defining element (15),
• wherein at least one annular gap (5, 6) is formed or can be formed between the gap-defining element (15) and the outlet end of the gas inlet line (12),
• wherein a baffle wall (7, 8) is arranged downstream of the annular gap (5, 6),
• wherein the oil separating device (10) comprises a circumferential wall (18) surrounding the outer circumference of the gap-defining element (15) and fixed relative to the carrier (11),
• wherein the oil separating device (10) comprises a retaining element (14) enclosing the gap-defining element (15),
• wherein the circumferential wall (18) is part of the retaining element (14) and/or part of the carrier (11), and
• wherein the retaining element (14) comprises a plurality of gas outlet opening.