The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 01, 1989
Filed:
Nov. 30, 1987
Applicant:
Inventors:
Alfred Schlemenat, Dornchen, DE;
Helmut David, Oberhausen, DE;
Assignee:
Man Gutehoffnungshuette GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F28F / ;
U.S. Cl.
CPC ...
165158 ; 165133 ; 165163 ; 165906 ;
Abstract
A tubular heat exchanger for operation at high gas temperatures and high jacket pressures include tube sheets which are exposed to high loads so that both sheets are kept thin and tie rods bracing the tube sheets are arranged on at least every other graduated circle of a plurality of graduated circles or tubes and tie rods. The heat exchanger tubes arranged between the tube sheets have a helical shape in an intermediate or central region. The heat exchanger design can be used, for example, as a cracked gas cooler.