US 4,714,107 A · Titanium heat exchanger for laser cooling

Abstract

A heat exchanger apparatus has a titanium liquid circuit for the passage of a liquid to be cooled. The liquid circuit has a liquid input and a liquid output and is formed with titanium walls having coacting ribs formed on two walls to spread the liquid passing therethrough. A pair of cooling circuits located adjacent to the liquid circuit has air or another cooling fluid passed therethrough for cooling the liquid passing through the liquid circuit. Each cooling circuit is attached adjacent one titanium wall of the liquid circuit and each has a purality of metallic cooling fins, such as pin fins, fixedly soldered or brazed to the titanium wall. The titanium liquid side has no brazed or soldered joint and this prevents corrosion and contamination, while the heat exchanger efficiency is enhanced by the thin walls of titanium having high heat transfer pin fins soldered or brazed directly to the air side. Complete access to the liquid side of the heat exchanger is provided for cleaning.

Claims31

Dependent claims

A heat exchanger apparatus comprising in combination:

a liquid circuit for the passage of a liquid to be cooled, said liquid circuit having a liquid input and a liquid output and said liquid circuit formed with titanium walls having ribs formed on at least one of said walls;
a first fluid circuit for passage of a fluid for cooling a liquid passing through said liquid circuit and being attached adjacent to one said titanium wall of said liquid circuit, said first fluid circuit having a plurality of metallic cooling members made of a metal having a higher thermal conductivity than titanium fixedly attached to said one titanium wall;
and
a second fluid circuit for passage of a fluid for cooling a liquid passing through said liquid circuit and being attached adjacent to another said titanium wall of said liquid circuit, said second fluid circuit having a plurality of metallic cooling members made of a metal having a higher thermal conductivity than titanium fixedly attached to said other titanium wall, whereby a heat exchanger utilizes a titanium passageway to cool a heated liquid passing therethrough.

1 more element

Dependencies are inferred from the claim text.

Titanium heat exchanger for laser cooling

Life of this patent

Titanium heat exchanger for laser cooling

Life of this patent

Abstract

Claims31