the conduits being arranged one within the other, e.g. concentrically

Introduced: September 1968

Last revised: January 2006

Full Title

Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall > the conduits being arranged one within the other, e.g. concentrically

Classification Context

Section:: MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
Class:: HEAT EXCHANGE IN GENERAL
Subclass:: HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL

2 direct subcodes

Child Classifications

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F28D 7/12 the surrounding tube being closed at one end, i.e. return type
F28D 7/14 both tubes being bent