F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F
MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F28
HEAT EXCHANGE IN GENERAL
F28
HEAT EXCHANGE IN GENERAL
F28F
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
F28F
DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
F28F3/00
Plate-like or laminated elements; Assemblies of plate-like or laminated elements
F28F3/00
Plate-like or laminated elements; Assemblies of plate-like or laminated elements
F28F3/02
Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
F28F3/02
Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
F28F3/04
the means being integral with the element
F28F3/04
the means being integral with the element