Heat exchanger for aircraft engine

A heat exchanger for an aircraft engine that is allowed to be disposed on a curved surface which is part of the aircraft engine and along which a swirl flow flows, the heat exchanger comprising:

• a main body that has a plate-like shape curved along the curved surface, includes an internal channel through which a fluid is allowed to flow, and has a first surface so disposed as to face the curved surface and a second surface on a side opposite the first surface;
• and
• a plurality of heat dissipating fins that are arranged on at least one of the first and second surfaces, wherein
• the heat dissipating fin has a plate-like shape and has an inlet-side upper edge disposed on a side where the swirl flow flows in and an outlet-side upper edge disposed on a side opposite the inlet-side upper edge and on a side where the swirl flow flows out, and
• the inlet-side upper edge intersects an axis of rotation of a fan and extends along a direction in which the swirl flow flows at the inlet-side upper edge,
• the plurality of heat dissipating fins include
• first heat dissipating fins each so configured that at least the inlet-side upper edge intersects the axis of rotation at a first intersection angle, and
• second heat dissipating fins each so configured that at least the inlet-side upper edge intersects the axis of rotation at an intersection angle different from the first intersection angle.