Heat exchanger comprising a bundle provided with means for limiting the movements of said exchange bundle relative to the walls of the housing

The present invention relates to a heat exchanger comprising a housing adapted to envelop a heat exchange bundle, said housing being provided with an opening allowing it to receive said heat exchange bundle inside said housing, said heat exchange bundle comprising a first end adapted to seal the opening of the housing when the heat exchange bundle is inserted inside said housing, in which a second end of the heat exchange bundle opposite to said first end is provided with at least one protuberance and in which the wall of the housing is provided with a contact element (50) adapted to hold said protuberance in order to limit the movement of the second end of the heat exchange bundle relative to said housing wall.