Patent ID: 7097345
Filing Date: 2006-08-29
Classification: B29B,B29C

Abstract:
1. A screw with a heat exchange function comprising: a screw element having an end portion which is rotatably supported by a bearing; a heat exchange medium chamber located at a center section in the radial direction of said screw element, said heat exchange medium chamber running along the lengthwise direction of said screw element; a heat exchange medium supply pipe supplying a heat exchange medium, said heat exchange medium supply pipe having a first portion provided entirely at one side of said bearing in the lengthwise direction of said screw element and extending in said heat exchange medium chamber, said heat exchange medium supply pipe further including a second portion provided entirely at another side of said bearing in the lengthwise direction of said screw element and extending out of said screw element, said another side being opposite said one side in the lengthwise direction of said screw element, wherein said first portion of said heat exchange medium supply pipe comprises split pipes and is split into two or more sections in the lengthwise direction of said screw element, and pipe connecting means for bendably connecting said split pipes with each other.