发明名称 Method for the manufacturing of a fluid conduit, particularly a fluid conduit in a co2 refrigeration system
摘要 The invention relates to a method for producing a fluid conduit, in particular a fluid conduit for a CO<SUB>2 </SUB>refrigerating plant. The aim of said invention is to develop a quick and inexpensive method. For this purpose, several pipes ( 5 - 9 ) are simultaneously supplied by means of at least one roller ( 11 ) which is provided with peripheral grooves ( 14 ) and are helically wound in a parallel direction with respect to each other, wherein each pipe ( 5 - 9 ) is guided along a helical line and the helical lines of all pipes ( 5 - 9 ) are parallel to each other.
申请公布号 US2007137275(A1) 申请公布日期 2007.06.21
申请号 US20050592890 申请日期 2005.03.15
申请人 DANFOSS A/S 发明人 HANSEN CHRISTIAN B.
分类号 B21B39/02;B21D11/06;B21D53/02 主分类号 B21B39/02
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