Annular sealing device

A cooling device comprising a cooling circuit through which a coolant is flowable an annular sealing device, the sealing device including:

• a support ring of a support material having an axial face end and an inner lateral surface;
• a sealing ring of a sealing material which has an L-shaped cross section and lies against the inner lateral surface and the axial face end of the support ring, the sealing ring defining a radial sealing surface and an axial sealing surface;
• the support ring having a plurality of passage openings disposed between the axial face end and the inner lateral surface;
• the plurality of passage openings each having an undercut of a plurality of undercuts directed radially to an outside, and the plurality of passage openings defining a negative form for a plurality of connecting webs;
• and
• wherein the sealing ring is formed as a plastic injection moulding and is injection moulded onto the support ring such that the axial sealing surface, the radial sealing surface, and the plurality of connecting webs are integrally provided as a single piece and the plurality of undercuts are at least partly filled with the sealing material.

An annular sealing device comprising:

• a support ring of a support material having an axial face end, an inner lateral surface, and a plurality of passage openings extending between the axial face end and the inner lateral surface, each of the plurality of passage openings having a radially outward extending undercut of a plurality of undercuts;
• and
• a sealing ring of a sealing material having a radial sealing surface, an axial sealing surface, and a L-shaped cross section and including a plurality of webs, the sealing ring arranged on the support ring lying against the axial face end and the inner lateral surface;
• wherein the sealing ring is injection moulded and is secured onto the support ring via injection moulding such that the plurality of passage openings are filled with the sealing material defining the plurality of webs therein, the plurality of undercuts are at least partially filled with the sealing material, and the axial sealing surface, the radial sealing surface, and the plurality of connecting webs are integrally provided as a single piece.