Heat exchanger
AssigneeZexel Corporation
InventorsYoshihisa Eto, Toshio Tsubakida, Takashi Sugita
Life of this patent
Estimating the term…
Abstract
An end plate of a tank whose inside is partitioned by a partition has a plurality of insertion holes receiving connecting portions of tube elements. In the end plate, a first projection is distended and formed so as to run through narrow middle portions of the insertion holes, and a fit groove for the partition is formed on the inside of the first projection. Even when a core of the heat exchanger is put sideways on a furnace in a heat brazing method, brazing filler material can easily flow into the gaps between the insertion holes and the tube elements inserted into the insertion holes. As a result, good brazing can be performed.
Claims12
A heat exchanger, comprising;
- a plurality of tube elements alternately laminated with fins in a direction of lamination, each said tube element comprising a U-shaped heat exchanging medium passage having an open end in an elongate direction of said tube element comprising intake/output openings;
- a tank comprising a deep concave tank member and an end plate fitting together, said end plate having a plurality of insertion holes formed therein;
- wherein said open ends of said tube elements are inserted into said plurality of insertion holes;
- wherein said tank has a inside partitioned by a partition extending in the direction of lamination so as to define an intake side and an output side in said tank, said intake/output opening into said intake and output sides, respectively;
- intake/output pipes connected to said deep concave tank member and communicating with said intake side and said output side, respectively;
- a first projection formed in said end plate of said tank, projecting on the outside to said end plate and extending in the direction of lamination;
- a second projection formed in said end plate of said tank, projecting on the outside of said end plate and positioning between adjacent said insertion holes and on opposite sides of the first projection;
- and
- a fit groove extending in the direction of lamination and formed on the other side of said first projection on the inside of said end plate, said partition being fit in said fit groove.
Dependencies are inferred from the claim text.