Global Patent Index - EP 1072795 A1

EP 1072795 A1 2001-01-31 - DIAGNOSING SYSTEM FOR FLUID MACHINERY

Title (en)

DIAGNOSING SYSTEM FOR FLUID MACHINERY

Title (de)

DIAGNOSESYSTEM FÜR FLUIDUMGERÄTE

Title (fr)

SYSTEME DE DIAGNOSTIC DESTINE A UN MECANISME A FLUIDE

Publication

EP 1072795 A1 (EN)

Application

EP 99912058 A

Priority

  • JP 9901661 W
  • JP 10858898 A
  • JP 17812098 A
  • JP 27918998 A
  • JP 31057598 A

Abstract (en)

The present invention relates to a diagnostic system for fluid machinery capable of detecting wasteful energy consumption in the fluid machinery. The diagnostic system comprises a first identifying means for identifying the characteristics of the fluid machinery represented by flow rate-head characteristics by inputting prescribed data on the fluid machinery to be diagnosed; a second identifying means for identifying the operating flow rate or operating pressure of the fluid machinery according to the relationship between the identified characteristics and a measured operating pressure or operating flow rate of the fluid machinery by operating the fluid machinery to be diagnosed and inputting the measured results of the operating pressure (head), operating flow rate, power consumption, or operating electric current of the fluid machinery in operation; and a processing means for computing variations in the operating flow rate, operating pressure, or power consumption when the rotational speed of the fluid machinery to be diagnosed is varied and for displaying the computed results. <IMAGE>

IPC 1-7 (main, further and additional classification)

F04B 51/00

IPC 8 full level (invention and additional information)

F04B 51/00 (2006.01); F04D 15/00 (2006.01)

CPC (invention and additional information)

F04B 51/00 (2013.01); F04D 15/0088 (2013.01); F04B 2203/0209 (2013.01)

Designated contracting state (EPC)

DE DK FR GB IT

EPO simple patent family

EP 1072795 A1 20010131; EP 1072795 A4 20061018; AU 3053799 A 19991025; CN 1128930 C 20031126; CN 1303467 A 20010711; JP 3343245 B2 20021111; WO 9951883 A1 19991014

INPADOC legal status


2010-12-29 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20100526

2007-10-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20070808

2006-10-18 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20060919

2001-01-31 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20001004

2001-01-31 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): DE DK FR GB IT