Tube and fin heat exchanger with hybrid heat transfer fin arrangement
Patent 4693307 Issued on September 15, 1987. Estimated Expiration Date: 
September 29, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 29, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorAssigneeApplicationNo. 06/912575 filed on 09/29/1986US Classes:165/152, Deformed sheet forms passages between side-by-side tube means165/153With tube manifoldExaminersPrimary: Davis, Albert W. Jr.Assistant: Neils, Peggy A. Attorney, Agent or FirmInternational ClassF28F 1/12 (20060101)AbstractA motor vehicle tube and fin heat exchanger is disclosed comprising a plurality of tubes arranged in spaced side-by-side relationship and a plurality of louvered fins arranged in spaced side-by-side relationship and between and in heat transfer relationship with adjacent ones of the tubes. The fins preferably have a thickness and stacked density such as to constitute not more than 12% nor less than 2.5% of the space between the adjacent tubes, a total louvered area not more than 60% nor less the 40% of the total fin area, and a linear fin edge projection density of not more than 1.2 mm-1 nor less than 0.68 mm-1. | |
