EP 2918842 A1 20150916 - Discharge casing and vertical submersible pump provided with the same
Title (en)
Discharge casing and vertical submersible pump provided with the same
Title (de)
ENTLADUNGSGEHÄUSE UND VERTIKALE TAUCHPUMPE DAMIT
Title (fr)
BOÎTIER DE DÉCHARGE ET POMPE SUBMERSIBLE VERTICALE DOTÉE DE CELUI-CI
Publication
Application
Priority
JP 2014047190 A 20140311
Abstract (en)
It is an object of the present invention to provide a vertical submersible pump capable of properly releasing air from an internal space of a pump body when a water level is recovered. A discharge casing 9 is used in the vertical submersible pump. The discharge casing 9 includes a joining thread portion 18b formed in at least a part of an outer surface of the discharge casing 9. The joining thread portion 18b is configured to be threadedly engaged with a female thread portion formed in an inner surface of an outer casing 24. At least one air releasing groove 25 that cuts across a thread of the joining thread portion 18b is formed in the joining thread portion 18b.
IPC 8 full level
F04D 9/00 (2006.01); F04D 13/10 (2006.01); F04D 29/42 (2006.01); F04D 29/62 (2006.01)
CPC (source: EP)
F04D 9/006 (2013.01); F04D 13/10 (2013.01); F04D 29/42 (2013.01); F04D 29/628 (2013.01); F05D 2250/281 (2013.01); F05D 2250/294 (2013.01); F05D 2260/605 (2013.01)
Citation (applicant)
Citation (search report)
- [Y] CN 202348701 U 20120725 - SUZHOU WODA GARDEN MACHINERY CO LTD
- [Y] JP 2003014250 A 20030115 - MATSUSHITA ELECTRIC IND CO LTD
- [A] JP S5726296 A 19820212 - HITACHI LTD
- [A] US 2851951 A 19580916 - DETERS ELMER M
- [A] GB 2098660 A 19821124 - MARLEY WYLAIN CO
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 2918842 A1 20150916; CN 104912849 A 20150916; JP 2015169189 A 20150928; TW 201537027 A 20151001
DOCDB simple family (application)
EP 15158639 A 20150311; CN 201510102954 A 20150309; JP 2014047190 A 20140311; TW 104107160 A 20150310