Tube connection between a collector of a motor vehicle heat exchanger and an exterior line
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United States of America Patent
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-
Jun 4, 2002
Grant Date -
N/A
app pub date -
Oct 10, 2000
filing date -
Oct 27, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a tube connection between a collector (2) of a motor vehicle heat exchanger and a line (16) using a connecting sleeve (14) in which the free end (32) of the line (16) engages in a positive manner. An annular seal (28) is accommodated in the annular gap (22) between the inner surface (24) of the connecting sleeve (14) and the outer surface (26) of the line (16). An outer flange (38) is provided on the free end (40) of the connecting sleeve (14), and a buckled outer bead (36) is formed on the line (16). When the tube connection is completely assembled, said bead is tightened against the outer face (41) of the outer flange (38) by a clamping device (42). The seal (28) forms an insertion sleeve (44). A sealing element (48) is formed on the insertion sleeve in the peripheral area thereof situated close to the collector, and a sealing flange (46) projects from the peripheral area of the insertion sleeve situated away from the collector. Said sealing flange is axially clamped between the outer flange (38) and the outer bead (26) by the clamping device (42).
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