Hairpin expander machine for manufacturing tube and fin heat exchangers with reduced tube diameter

Hairpin expander machine for manufacturing tube and fin heat exchangers with reduced tube diameter

An improved hairpin expander machine equipped with a closed-loop-controlled hydraulically positioned bolster plate and a heat exchanger-holding fixture characterized by a full-length, continuous front plate, back plate, and side rails. The hairpin expander includes a novel heat exchanger bottom end...

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Hauptverfasser: Dees, Dan, Garza, Eric, Merschat, Stephen, Mosser, Sean, Overturff, Andrew, Stetson, Dale, Topper, William
Format: Patent
Sprache:eng
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creator Dees, Dan
Garza, Eric
Merschat, Stephen
Mosser, Sean
Overturff, Andrew
Stetson, Dale
Topper, William
description An improved hairpin expander machine equipped with a closed-loop-controlled hydraulically positioned bolster plate and a heat exchanger-holding fixture characterized by a full-length, continuous front plate, back plate, and side rails. The hairpin expander includes a novel heat exchanger bottom end plate clamping mechanism as part of the fixture. These features enable the hairpin expander to provide larger expansion ratios and exert greater forces with tighter control, which is required for producing heat exchangers with reduced diameter hairpin tubes according to a preferred embodiment of the invention.
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The hairpin expander includes a novel heat exchanger bottom end plate clamping mechanism as part of the fixture. These features enable the hairpin expander to provide larger expansion ratios and exert greater forces with tighter control, which is required for producing heat exchangers with reduced diameter hairpin tubes according to a preferred embodiment of the invention.</abstract><oa>free_for_read</oa></addata></record>
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title Hairpin expander machine for manufacturing tube and fin heat exchangers with reduced tube diameter
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