Collecting tank for a heat exchanger

A collecting tank for a heat exchanger, comprising:

• at least one manifold extending in a longitudinal direction;
• the at least one manifold including a bottom, a plurality of tank receptacles for receiving a plurality of heat exchanger tubes, and a hollow space through which a fluid is flowable;
• the plurality of tank receptacles disposed in the bottom and arranged spaced apart from one another in the longitudinal direction;
• the plurality of tank receptacles extending in a transverse direction, which extends transverse to the longitudinal direction;
• wherein the bottom includes at least one outwardly directed curvature protruding away from the hollow space in a height direction extending transverse to the longitudinal direction and transverse to the transverse direction;
• wherein the at least one curvature extends completely across the bottom in the transverse direction;
• wherein the at least one manifold is integral;
• and
• wherein the at least one curvature is a solid protrusion projecting from the bottom.

A collecting tank for a heat exchanger, comprising at least one manifold extending in a longitudinal direction, wherein:

• the at least one manifold includes:
• a bottom;
• a wall adjoining the bottom such that the wall and the bottom define a hollow space through which a fluid is flowable;
• and
• a plurality of tank receptacles for receiving a plurality of heat exchanger tubes, the plurality of tank receptacles disposed in the bottom and arranged spaced apart from one another in the longitudinal direction;
• the plurality of tank receptacles extend in a transverse direction, which extends transverse to the longitudinal direction;
• the bottom includes an outwardly directed curvature protruding from the bottom away from the hollow space in a height direction extending transverse to the longitudinal direction and transverse to the transverse direction;
• and
• the at least one curvature extends completely across the bottom in the transverse direction.