Patent · US Expired

Recuperative heat exchanger of ceramic material

US4321964A · kind A · utility

3Cited by

3References

11Claims

0Family size

Assignee

Kernforschungsanlage Julich Gesellschaft mit Berschrankter Haftung, Rosenthal Technik AG CNT DEX COD 03 · DE

Inventors

Siegfried Forster · Alsdorf, DE
Axel Krauth · Selb, DE
Horst Maier · Planegg, DE
Hans-Jurgen Pohlmann · Selb, DE

Key dates

Filing date	Jun 1, 1979
Grant date	Mar 30, 1982
Priority date	—
Expiry date	Jun 1, 1999

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S165/396
WIPO fieldOther special machines
WIPO sectorMechanical engineering

Abstract

The invention relates to a recuperative heat exchanger comprising an elongate rotationally symmetric body of ceramic material having radially outwardly extending, flow channels of slot like cross-section extending along the axis of the body. Alternate flow channels extend further toward the surface of the body and further toward the axis of the body, respectively. Inlet and outlet openings are provided for the flow channels about at the ends of the body. The invention also comprises a process for making such a heat exchanger, including extruding ceramic material through an extrusion nozzle with a free cross-section in which core bodies are shaped and positioned for generating the flow channels and inner and outer cover walls defining the flow channels. The invention further comprises the extrusion nozzle in which the process is performed.

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