EP 1355758 A1 20031029 - PROFILED CONTOUR OF A SCREW PUMP
Title (en)
PROFILED CONTOUR OF A SCREW PUMP
Title (de)
PROFILKONTUR EINER SCHRAUBENSPINDELPUMPE
Title (fr)
CONTOUR PROFILE D'UNE POMPE A BROCHE HELICOIDALE
Publication
Application
Priority
- DE 10102341 A 20010119
- EP 0200247 W 20020112
Abstract (en)
[origin: WO02057044A1] The invention relates to the production of screw pump rotors comprising a pitch and/or depth of teeth which can be modified along the axis of the rotor. By means of a simple profiled machine tool (7), a first part of the profiled flank contour is clearly defined along the rotor axis (8) by means of its specific tool guide mechanism, and is then produced in a definitive manner. The remaining second part of the profiled flank contour is then determined according to the rolling movement of the pair of rotors according to the first part of the profiled flank contour carried out by the tool, by means of an approximation which is as precise as possible. It is thus possible to obtain transversally different profiled contours according to the pitch and/or depth of teeth which can be modified along the axis of the rotor. A disk milling cutter is selected to be used as a profiled machine tool.
IPC 1-7
IPC 8 full level
B23C 3/32 (2006.01); B23G 1/32 (2006.01); F04C 18/16 (2006.01)
CPC (source: EP KR US)
B23F 15/08 (2013.01 - EP US); B23G 1/32 (2013.01 - EP US); F04C 18/084 (2013.01 - EP US); F04C 18/16 (2013.01 - EP KR US); F04C 2220/12 (2013.01 - EP US); F04C 2230/10 (2013.01 - EP US); Y10T 29/49242 (2015.01 - EP US); Y10T 409/303808 (2015.01 - EP US)
Citation (search report)
See references of WO 02057044A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02057044 A1 20020725; CA 2435040 A1 20020725; DE 10102341 A1 20020808; EP 1355758 A1 20031029; JP 2004517261 A 20040610; KR 20030079955 A 20031010; US 2004111884 A1 20040617
DOCDB simple family (application)
EP 0200247 W 20020112; CA 2435040 A 20020112; DE 10102341 A 20010119; EP 02715419 A 20020112; JP 2002557546 A 20020112; KR 20037009593 A 20030718; US 46664304 A 20040209