Laminated heat exchanger

Abstract

Abstract PURPOSE:To prevent leakage of fluid and the leakage between the outside part of a heat exchanger and the fluid without deformation of the groove in the heat exchanger by a method wherein the shape of a part of one flat plate contacting with an end plate having no inlet or outlet port of flat plates having layered grooves and the punched parts is varied. CONSTITUTION:Grooves of which ends are connected with the first punched part, two or more first flat plates 1a and 1b having second punched parts separated from said grooves, and grooves are provided and further the second flat plate 1a having not punched parts and the end plate 2a are arranged. Then, the first flat plates are overlapped to each other to form a layered body having a plurality of independent and separate flow passages having the grooves connected to each other. The second flat plates 1a' are arranged with their grooves sides being directed toward said layered body to cause the end plate 2a to be integrally formed with the layered body. Therefore, two types of fluids are not contacted directly with between the surface having no grooves of the flat plate 1a' having a large connection area and the end plate 2a, so that it is possible to prevent a leakage of two fluids and a leakage between the two fluids and the outside part of the heat exchanger.

Inventors

• 👤 Tsutomu Harada
• 👤 努 原田
• 👤 Isao Takeshita
• 👤 功 竹下
• 👤 Yoshiaki Yamamoto
• 👤 義明 山本

Bibliographic Details