Heat exchange – With repair or assembly means
Patent
1991-02-20
1992-04-07
Flanigan, Allen J.
Heat exchange
With repair or assembly means
165173, 228136, 228183, F28F 904
Patent
active
051018870
ABSTRACT:
The heat exchanger comprises a plurality of oval-shaped flat tubes for conducting refrigerant and a plurality of corrugated fins fixedly sandwiched between the flat tubes. First and second header pipes are fixedly and hermetically connected tot he flat tubes through openings formed on the header pipes and communicate with the interior of the flat tubes. The flat tubes include a pair of wedge-shaped projections at the opposite ends thereof, respectively. At least one pair of wedge-shaped projections engage with an interior surface of the header pipes adjacent to the openings when the flat tubes are received into the interior of the header pipes through the openings, thereby preventing relative sliding motion between the header pipes and the flat tubes through the openings. The wedge-shaped projection may be disposed on either the upper and lower flat surfaces or the curved side surfaces of the flat tubes.
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Flanigan Allen J.
Sanden Corporation
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