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. 06, 1991
Filed:
Aug. 28, 1990
Applicant:
Inventors:
Lee C Whitehead, Middleport, NY (US);
James E Farry, Jr, Williamsville, NY (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F28D / ; F28F / ;
U.S. Cl.
CPC ...
165133 ; 165146 ; 165150 ; 165174 ; 165176 ; 165152 ; 165911 ; 62525 ; 62526 ;
Abstract
A multiple serpentine tube heat exchanger having side-by-side arranged serpentine-shaped passageways each extending across the core and a mixing chamber connecting one such passageway to at least one other. The passageway constituting the back of the heat exchanger core has an enlarged internal surface area relative to the passageway constituting the face of the heat exchanger core. Microgrooving of the passageway can be used to further enhance heat transfer.