Global Patent Index - EP 1774181 A1

EP 1774181 A1 20070418 - CENTRIFUGAL PUMP

Title (en)

CENTRIFUGAL PUMP

Title (de)

ZENTRIFUGALPUMPE

Title (fr)

POMPE CENTRIFUGE

Publication

EP 1774181 A1 20070418 (EN)

Application

EP 04799748 A 20041112

Priority

  • JP 2004017203 W 20041112
  • JP 2004210735 A 20040716

Abstract (en)

[origin: WO2006008843A1] A centrifugal pump includes at least one impeller (11) fixed to a main shaft (10) and at least one casing which houses the impeller and is formed through press working of sheet metal such as a steel plate. The centrifugal pump further includes a casing cover configured to seal an open end of the casing hermetically, and a shaft seal device (12) provided at a portion where the main shaft passes through the casing cover. The casing cover has a thick member (6) made of castings, and a thin corrosion-resistant lining member (40) which is tightly fixed to the thick member.

IPC 8 full level

F04D 29/42 (2006.01); F04D 7/06 (2006.01); F04D 29/02 (2006.01)

CPC (source: EP US)

F04D 1/066 (2013.01 - EP US); F04D 7/06 (2013.01 - EP US); F04D 29/026 (2013.01 - EP US); F04D 29/4286 (2013.01 - EP US); F05D 2230/234 (2013.01 - EP US); F05D 2260/95 (2013.01 - EP US); F05D 2300/171 (2013.01 - EP US)

Citation (search report)

See references of WO 2006008843A1

Designated contracting state (EPC)

DE DK IT

DOCDB simple family (publication)

WO 2006008843 A1 20060126; CN 1989347 A 20070627; EP 1774181 A1 20070418; JP 2006029241 A 20060202; JP 4633396 B2 20110216; US 2008019831 A1 20080124

DOCDB simple family (application)

JP 2004017203 W 20041112; CN 200480043604 A 20041112; EP 04799748 A 20041112; JP 2004210735 A 20040716; US 63148304 A 20041112