Plate fin for heat exchanger and heat exchanger core
AssigneeT. Rad Co., Ltd.
InventorsJun Yoshioka, Kiyoshi Sasaki, Johji Satoh
Life of this patent
Estimating the term…
Abstract
A plate type heat exchanger employing flat tubes, which can be manufactured easily and which have a high heat exchange performance includes a thin strip-shaped metal plate cut in the width direction and having remaining small connected portions and many cut portions disposed at fixed intervals in the longitudinal direction slits are formed in both sides of the cut potions having the same center. The strip-shaped metal plate is bent at the connected portions in a zigzag manner to form an aggregation of fin elements, and the flat tubes are engaged with the front and rear sides of the aggregation of the fin elements.
Claims5
Plate fins for a heat exchanger:
- comprising a thin strip-shaped metal plate having a plurality of cut portions which are cut in the width direction thereof and having remaining connected portions of a small length respectively relative to the full width thereof, wherein the cut portions are spaced from each other at fixed intervals in the longitudinal direction;
- slits crossing the cut portions having each cut portion as a center are disposed in parallel being spaced from each other in said width direction in said strip-shaped metal plate;
- said strip-shaped metal plate is bent in a manner of a zigzag at said connected portion to form an aggregation of continuous fin elements;
- flat tubes can be engaged with said slits from the opening side that are formed in front and rear side respectively in the aggregation of the fin elements.
Dependencies are inferred from the claim text.