Patent · US Active

Tube bundle heat exchanger

US12345476B2 · kind B2 · utility

0Cited by

3References

8Claims

0Family size

Assignee

WIELAND-WERKE AG · DE

Inventors

Harald Gaibler · Neudorf, DE
Achim Gotterbarm · Blaustein, DE
Philipp Hofmann · Munich, DE
Verena Obst · Neu-Ulm, DE
Michael Scheuss · Cologne, DE

Key dates

Filing date	Oct 21, 2021
Grant date	Jul 1, 2025
Priority date	—
Expiry date	Jun 2, 2042

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F2275/067
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A tube bundle heat exchanger having a tube sheet, an outer shell and an interior. The heat exchanger includes a tube bundle having tubes located in the interior for fluid flow. The tubes have outside ribs and a channel is formed between adjacent ribs. The tube sheet has openings as passage points. Outer fins of the tubes project into the openings, and a joint gap is formed between an inner surface defining the opening and the outer fins of a tube located therein. The tubes are bonded to the tube sheet by joining material with the involvement of the outer fins. The bond is only formed in a first portion of the opening. The first portion is filled with joining material such that a second portion of the opening remains which is not filled with joining material, and the tube has outer fins adjacent the second portion.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.