Patent · US Active

Heat exchanger tube

US10996005B2 · kind B2 · utility

1Cited by

38References

8Claims

0Family size

Assignee

WIELAND-WERKE AG · DE

Inventors

Achim Gotterbarm · Blaustein, DE
Ronald Lutz · Round Rock, US
Jean El Hajal · Ulm, DE
Manfred Knab · Blaustein, DE

Key dates

Filing date	May 17, 2017
Grant date	May 4, 2021
Priority date	—
Expiry date	Oct 26, 2037

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF28F1/422
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

The invention relates to a heat exchanger tube having a tube longitudinal axis, wherein fins extend continuously from the tube wall on the tube outer face and/or the tube inner face, or extend axially parallel thereto or in the form of a helix. Continuously extending primary grooves are formed between adjacent fins, said fins have at least one structured area on the tube outer face and/or tube inner face, and the structured area has a plurality of projections of a projection height projecting from the surface, the projections being separated by notches. According to the invention, a plurality of projections are deformed relative one another in pairs to such an extent that cavities are formed between adjacent projections. Furthermore, according to the invention, a plurality of projections are deformed in the direction of the tube wall such that cavities are formed between a respective projection and the tube wall.

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