EP 2311724 A1 20110420 - Method for constructing a nozzle and a nozzle
Title (en)
Method for constructing a nozzle and a nozzle
Title (de)
Verfahren zum Bauen einer Düse und Düse
Title (fr)
Procédé de construction d'une buse et buse
Publication
Application
Priority
NL 2003642 A 20091014
Abstract (en)
The invention relates to a method for producing a nozzle with an inner wall for guiding a flow of water through a screw propeller, wherein the inner wall has a profile on the one side and possibly also a second profile on the other side. According to the invention, the inner wall of the nozzle is formed from a hollow cylindrical body formed by rolling out plates with an approximate thickness of the inner wall in the radius to the inner wall and by welding the rolled plates to form the hollow cylindrical body and by subsequently spinning the one side of the hollow cylindrical body by means of plastic deformation or spinning to the first and/or the second profile. The invention also relates to a nozzle, wherein the inner wall is an axisymmetric or rotationally symmetric part with no more than one or several welds in the axial direction.
IPC 8 full level
B63B 9/00 (2006.01); B21D 19/04 (2006.01); B63H 5/14 (2006.01)
CPC (source: EP)
B21D 19/046 (2013.01); B21D 22/18 (2013.01); B63B 71/00 (2020.01); B63H 5/14 (2013.01)
Citation (applicant)
EP 1129006 A1 20010905 - SCHEEPSWERF VAN DE GIESSEN B V [NL]
Citation (search report)
- [XI] FR 2739831 A1 19970418 - TECIMAR [FR]
- [XI] NL 1004558 C2 19980519 - SCHEEPSWERF VAN DE GIESSEN B V [NL]
- [XDI] EP 1129006 B1 20050112 - SCHEEPSWERF VAN DE GIESSEN B V [NL]
- [A] GB 1070743 A 19670601 - BURNESS CORLETT & PARTNERS LTD
- [A] DE 3718954 A1 19881222 - GARTMANN UWE [DE]
- [A] GB 1202144 A 19700812 - SAXTON BRISTOWE BUCKLAND
- [A] US 5531370 A 19960702 - ROHRBERG RODERICK G [US]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2311724 A1 20110420; BR PI1004175 A2 20130305; CN 102069347 A 20110525; MX 2010011229 A 20110504; NL 2003642 C2 20110418
DOCDB simple family (application)
EP 10187057 A 20101008; BR PI1004175 A 20101013; CN 201010549461 A 20101013; MX 2010011229 A 20101013; NL 2003642 A 20091014