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:
Jul. 16, 1991
Filed:
Apr. 25, 1990
Applicant:
Inventors:
Wolfgang Kehrer, Berlin, DE;
Thomas Schreck, Berlin, DE;
Assignee:
Borsig GmbH, Berlin, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10G / ; F28F / ;
U.S. Cl.
CPC ...
1651341 ; 165903 ; 122 / ; 208 / ; 585950 ;
Abstract
A heat exchanger for cooling cracked gas has a nest of heat-exchange tubes (1) that the gas flows through and that are secured at the ends in bases (2 and 3) and surrounded by a jacket (4) that demarcates in conjunction with the bases a chamber occupied by evaporating water. Each heat-exchange tube has two sections (10 and 11) that differ in diameter and communicate through a cone (12). The section (11) with the longest diameter is at the emerging-gas end of the heat-exchange tube.