Patent · US Active

Condenser tubes with additional flank structure

US10974309B2 · kind B2 · utility

3Cited by

11References

2Claims

0Family size

Assignee

WIELAND-WERKE AG · DE

Inventors

Achim Gotterbarm · Blaustein, DE
Jean El Hajal · Ulm, DE
Andreas Beutler · Weißenhorn, DE

Key dates

Filing date	Oct 4, 2018
Grant date	Apr 13, 2021
Priority date	—
Expiry date	Jan 31, 2039

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F2215/10
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

A heat exchanger tube with a tube axis, a tube wall and with ribs extending around on the tube outer side. The ribs have a rib foot, rib flanks and a rib tip, wherein the rib foot projects substantially radially from the tube wall. The rib flanks are provided with additional structural elements which are arranged laterally on the rib flank. First material projections, which extend substantially in the axial and radial direction, adjoin second material projections which extend substantially in the axial and circumferential direction of the tube, wherein the first and second material projections have a common boundary line. The axial extent of the first material projections along this boundary line is less than the axial extent of the second material projections.

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