EP 1293680 A4 20051019 - DRAINAGE PUMP
Title (en)
DRAINAGE PUMP
Title (de)
ABSAUGPUMPE
Title (fr)
POMPE DE DRAINAGE
Publication
Application
Priority
- JP 0105008 W 20010613
- JP 2000185549 A 20000621
Abstract (en)
[origin: EP1293680A1] In order to reduce the noise in an operation of a drain pump, on the outer circumference of a blade 22 of an impeller 20 of a drain pump, a drain water-rectifying circle 30 is formed arising from the outer periphery of a drain guide surface 24 and being spaced from a shaft 21 having a specific radius therebetween, while a drain water guide 25 is formed inside the drain water-rectifying circle 30, so that the drain water-rectifying circle 30 cooperates with the drain water guide 25 so as to prevent air bubbles from occurring in the drain water, thereby enabling the reduction in the noise and vibration. <IMAGE>
IPC 1-7
IPC 8 full level
F04D 1/14 (2006.01); F04D 7/04 (2006.01); F04D 29/22 (2006.01); F04D 29/24 (2006.01); F04D 29/66 (2006.01); F24F 13/22 (2006.01)
CPC (source: EP KR)
F04D 29/22 (2013.01 - KR); F04D 29/2238 (2013.01 - EP); F04D 29/2266 (2013.01 - EP); F04D 29/2288 (2013.01 - EP); F04D 29/669 (2013.01 - EP); F24F 13/222 (2013.01 - EP)
Citation (search report)
- [DYA] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31)
- [YA] PATENT ABSTRACTS OF JAPAN vol. 1997, no. 07 31 July 1997 (1997-07-31)
- [A] PATENT ABSTRACTS OF JAPAN vol. 1996, no. 11 29 November 1996 (1996-11-29)
- See references of WO 0198667A1
Designated contracting state (EPC)
ES FR GB IT
DOCDB simple family (publication)
EP 1293680 A1 20030319; EP 1293680 A4 20051019; CN 1193172 C 20050316; CN 1383476 A 20021204; JP 2002005083 A 20020109; JP 3511044 B2 20040329; KR 100720377 B1 20070521; KR 20020035121 A 20020509; WO 0198667 A1 20011227
DOCDB simple family (application)
EP 01941029 A 20010613; CN 01801754 A 20010613; JP 0105008 W 20010613; JP 2000185549 A 20000621; KR 20027002118 A 20020219