FITTING/MANIFOLD ATTACHMENT AND METHOD FOR ITS INSTALLATION FOR HEAT EXCHANGER Russian patent published in 2006 - IPC F28F9/00 

FIELD: applicable in heat exchangers.

SUBSTANCE: the method for positioning of the fitting relative to the heat exchanger manifold consists in provision of a manifold with a wall having a through hole, provision of a fitting having a base, pipe connection projecting from the base and having an inner surface, and an opening passing through the base for provision of access to the inner surface; insert of the pipe connection in the hole from one side of the wall so that the fitting base would be on one side of the wall, and the pipe union part would be on the other side of the wall; deformation of the inner surface of the pipe connection with the aid of a tool for deformation inserted through the mentioned opening in the mentioned base for expansion of the mentioned part of the pipe connection to a shape which prevents withdrawal of the mentioned pipe connection from the mentioned hole. The fitting/manifold attachment of a heat exchanger includes: a manifold having a wall having a thickness and a hole passing through the thickness from the outer surface of the manifold to its inner part; a hole having a preliminary shape; and a fitting having a base and a pipe connection projecting from the base that can be deformed; a pipe connection having an outer surface, inner surface and a part projecting from the base to a distance exceeding the mentioned thickness of the mentioned wall; the pipe connection is deformed from the first shape to the second shape; in the first shape the outer surface of the pipe union corresponds to the preliminary shape of the hole for provision of a free insertion of the pipe connection into the hole with the part passing through the wall to the inner part of the manifold; in the second shape the mentioned part is increased so as to keep the pipe connection in the hole; the fitting has an opening passing through the base for provision of access to the inner surface of the pipe connection with the aid of a tool for deformation inserted through the opening for deformation of the pipe connection from the first shape to the second shape.

EFFECT: improved fitting/manifold attachment for a heat exchanger.

9 cl, 16 dwg