F - Mech Eng,Light,Heat,Weapons – 28 – D
Patent
F - Mech Eng,Light,Heat,Weapons
28
D
257/21
F28D 1/04 (2006.01) F28D 7/10 (2006.01)
Patent
CA 1098510
ABSTRACT Heat exchanger having a main tube surrounded by water from which heat is transferred to a heat exchanging medium flowing through the main tube. The main tube has several interior secondary tubes forming annular spaces through which the heat exchanging medium flows from a innermost one of the secondary tubes through all the annular spaces to an outermost one of the annular spaces, such that the tem- perature of the heat exchanging medium gradually raises in order to avoid freezing of the water contacting the main tube. -1-
327276
Forenade Fabriksverken
Smart & Biggar
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