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:
Mar. 26, 1991
Filed:
May. 04, 1989
Gerald E Engdahl, Wheaton, IL (US);
Per E Duus, West Chicago, IL (US);
Chicago Bridge & Iron Technical Services Company, Oak Brook, IL (US);
Abstract
A high pressure heat exchanger has a body with spaced apart parallel plates with side walls joined to the peripheral edge of each plate; a tubular high pressure liquid inlet header external of the body; a tubular high pressure liquid outlet header external of the body; a plurality of separate tubular runs in communication with the inlet and outlet headers; each tubular run including a tubular portion between substantially all adjacent plates of the body; the tubular portions of the same run being interconnected at one end by a tubular liquid return with a tubular portion on the opposite side of a first adjacent body plate and interconnected at the other end by a tubular liquid return with a tubular portion on the opposite side of a second adjacent body plate; the body internal plates having a liquid communication opening which permits a second liquid to flow from the space on one side of a baffle plate to the space on the other side of the baffle plate in a serpentine flow path through the body while in heat exchange contact with a first liquid flowing countercurrent in the tubular runs; the body having an inlet for feeding a second liquid into the body so that it flows countercurrent to the first liquid in the tubes; and the body having an outlet for withdrawing the second liquid from the body. A method of making the heat exchanger is also disclosed as is refrigeration apparatus using the heat exchanger.