EP 1053360 A1 20001122 - EXTRUSION PUMP
Title (en)
EXTRUSION PUMP
Title (de)
SPINNPUMPE
Title (fr)
POMPE DE FILATURE
Publication
Application
Priority
- DE 19855943 A 19981204
- EP 9909383 W 19991201
Abstract (en)
[origin: WO0034554A1] The invention relates to an extrusion pump for conveying a liquid polymer melt. A drive shaft (3) is provided for driving the conveying means, which are embedded in a pump housing (1). Said drive shaft (3) penetrates the pump housing (1) in a bearing bore (5) and has an outlying end for connecting a drive unit. A cooling body (4) which is pressure-tightly connected to the pump housing (1) is used to seal the outwardly guided drive shaft (3). The cooling body (4) has a cooling shaft (10) which surrounds the drive shaft (3) with a narrow gap (9). The outer surface of the cooling shaft (10) is cooled by a cooling medium in order to influence the viscosity of the polymer melt at least in a partial section of the gap (9) between the drive shaft (3) and the cooling shaft (10).
IPC 1-7
IPC 8 full level
D01D 1/06 (2006.01); F04B 15/02 (2006.01); F04B 53/00 (2006.01); F04B 53/08 (2006.01); F04C 2/10 (2006.01); F04C 13/00 (2006.01); F04C 15/00 (2006.01)
CPC (source: EP KR US)
D01D 1/06 (2013.01 - EP US); F04C 15/00 (2013.01 - KR); F04C 15/0038 (2013.01 - EP US); Y10S 384/90 (2013.01 - EP US)
Citation (search report)
See references of WO 0034554A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 0034554 A1 20000615; CN 1120251 C 20030903; CN 1290311 A 20010404; DE 59911607 D1 20050317; EP 1053360 A1 20001122; EP 1053360 B1 20050209; JP 2002531722 A 20020924; JP 4488144 B2 20100623; KR 20010040602 A 20010515; US 6315537 B1 20011113
DOCDB simple family (application)
EP 9909383 W 19991201; CN 99802707 A 19991201; DE 59911607 T 19991201; EP 99965427 A 19991201; JP 2000586983 A 19991201; KR 20007008471 A 20000803; US 61893100 A 20000718