Coolant connection of a heat exchanger, connection stem, housing section and intake manifold

A coolant connection of a heat exchanger arranged within a housing, comprising:

• a male connector arranged on and projecting outwardly from a side of the heat exchanger,
• wherein the heat exchanger is arranged in an interior of the housing, the male connector projecting through an opening in the outer wall of the housing to an exterior of the housing;
• a connection stem arranged on a side of the housing, the connection stem including
• a first end of the connection stem arranged at or facing towards the heat exchanger, the first end forming a female connector adapted for mating to and connection to the male connector, the first end having:
• a radially projecting connecting flange formed on a radial outer surface of the female connector;
• the radially projecting connecting flange surrounding the radial outer surface of the female connector, radially projecting connecting flange having:
• at least one mounting opening formed at an outer circumference of the radially projecting connecting flange and extending through the radially projecting connecting flange;
• at least one fluid line arranged in an interior of the radially projecting connecting flange, the at least one radially extending fluid line having a first fluid line end which opens into an inner space of the female connector, and having a second fluid line end which opens through the outer circumference of the radially projecting connecting flange to an outside environment;
• and
• a second end of the connection stem arranged fluidically outwardly away from the heat exchanger and the first end of the connection stem, the second end of the connection stem adapted for connecting to a coolant line or adapted to form a part of the coolant line;
• at least two seals arranged between the male connector and the female connector, which when in an assembled state in which the male connector at least partially projects into an interior of the female connector, the at least two seals and sealing areas are arranged to running circumferentially with respect to a connection stem axis around a circumference of the male connector;
• wherein one of the at least two seals is an inner seal forming an inner sealing area arranged inwardly relative to the heat exchanger;
• wherein one of the at least two seals is an outer seal forming an outer sealing area arranged outwardly from the inner sealing area;
• wherein the second fluid line end of the at least one radially extending fluid line opens into the inner space of the of the female connector between the inner seal and the outer seal;
• wherein the outer sealing area seals against a coolant-conducting area extending through the connection stem;
• wherein the inner sealing area seals against a fluid-conducting area for fluid to be cooled by the heat exchanger;
• wherein between the outer sealing area and the inner sealing area, the at least one fluid line leads from the inner space of the female connector through a circumferential wall of the connection stem, continuing radially outwardly through an interior of the radially projecting connecting flange of the female connector to outer circumference of the radially projecting connecting flange where the at least one fluid line opens to the outside environment.