EP 1606593 A1 20051221 - ELECTRONIC TURBINE FLOWMETER FOR GAS

Title (en)

ELECTRONIC TURBINE FLOWMETER FOR GAS

Title (de)

ELEKTRONISCHER TURBINENRADGASZÄHLER

Title (fr)

DEBITMETRE A TURBINE ELECTRONIQUE POUR GAZ

Publication

EP 1606593 A1 20051221 (DE)

Application

EP 04715822 A 20040228

Priority

DE 2004000374 W 20040228
DE 10312620 A 20030322

Abstract (en)

[origin: WO2004085974A1] The invention relates to an electronic turbine flowmeter for gas (1) whose measuring principle, first of all, basically consists of converting the kinetic energy inherent to the flow of gas to be measured into a rotation of a turbine wheel (5), and of using the rotational speed of this turbine wheel for determining the volume of the flow of gas. In order to achieve a higher measuring accuracy, the invention provides that the flow past a special rotating body (15) is evaluated instead of the flow past the turbine blades (6) and, optionally, the respective gas pressure is taken into account by a Reynolds linearization. In addition, the wear of the ball bearing (8) and the respective pressure of flow against the turbine blade (5) is monitored by sensors.

IPC 1-7

G01F 1/10; G01F 15/00

IPC 8 full level

G01F 1/115 (2006.01)

CPC (source: EP)

G01F 1/115 (2013.01)

Citation (search report)

See references of WO 2004085974A1

Citation (third parties)

Third party :

DE 2829866 A1 19800124 - ELSTER AG
DE 3804786 C2 19930701
DE 3612714 A1 19871022 - KIENINGER & OBERGFELL [DE]
DE 10153687 A1 20030515 - ELSTER GMBH [DE]
WO 02073141 A2 20020919 - INOTECH GMBH [DE], et al
JP H0377019 A 19910402 - TOKICO LTD
ANONYMOUS: "Turbine Meter - A smart preamplifier for real-time turbine meter diagnostics", FMC SMITH METER INC. AMERICAN ENERGY WEEK '95, February 1995 (1995-02-01), HOUSTON, TEXAS, pages 1 - 4, XP003023696

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

DOCDB simple family (publication)

DE 10312620 A1 20041007; CN 100387937 C 20080514; CN 1791786 A 20060621; EP 1606593 A1 20051221; WO 2004085974 A1 20041007

DOCDB simple family (application)

DE 10312620 A 20030322; CN 200480013762 A 20040228; DE 2004000374 W 20040228; EP 04715822 A 20040228