公开(公告)号：US20230400264A1

公开(公告)日：2023-12-14

申请号：US18245258

申请日：2021-10-07

Applicant: WIELAND-WERKE AG

Inventor： Achim GOTTERBARM ,  Manfred KNAB ,  Ronald LUTZ ,  Zhong LUO ,  Jianying CAO

IPC: F28F1/36

CPC classification number: F28F1/36 ,  F28F2215/10

Abstract: A metal heat exchanger tube having integral fins formed on the tube outside. The fins have a fin foot, fin flanks and a fin tip, and the fin foot protrudes radially from the tube wall. The tube includes a channel with a channel base and spaced-apart additional structures dividing the channel between the fins into segments and limiting fluid flow in the channel during operation. First additional structures are radially outwardly directed projections each with an end surface located between the channel base and the fin tip. Cavities in the form of second additional structures are disposed at the location of the projections between an end surface and the fin tip such that the cavities lie laterally on the fin flank and are open in the axial direction.