EP 1180235 A2 20020220 - DEVICE FOR MEASURING AT LEAST ONE PARAMETER OF A FLOWING MEDIUM
Title (en)
DEVICE FOR MEASURING AT LEAST ONE PARAMETER OF A FLOWING MEDIUM
Title (de)
VORRICHTUNG ZUR MESSUNG VON ZUMINDEST EINEM PARAMETER EINES STRÖMENDEN MEDIUMS
Title (fr)
DISPOSITIF POUR MESURER AU MOINS UN PARAMETRE D'UN FLUIDE EN ECOULEMENT
Publication
Application
Priority
- DE 0100690 W 20010223
- DE 10009154 A 20000226
Abstract (en)
[origin: WO0163218A2] The invention relates to a device for measuring at least one parameter, especially the volume flow, of a medium flowing in a conduit, especially the intake air volume flow of an internal combustion engine, with at least one measuring element being situated in the flow. It is known from the prior art that constrictions that extend radially in the conduit cause acoustic disturbances that can be perceived as a whistling noise. The inventive constrictions (35, 40, 79) do not evenly reduce the cross-section of the conduit (14) and therefore do not cause swirling turbulences that are acoustically perceived as a whistling noise.
IPC 1-7
IPC 8 full level
F15D 1/02 (2006.01); G01F 1/684 (2006.01); G01F 15/00 (2006.01)
CPC (source: EP KR US)
F15D 1/02 (2013.01 - EP US); G01F 1/56 (2013.01 - KR); G01F 1/6842 (2013.01 - EP US); G01F 15/00 (2013.01 - EP US)
Citation (search report)
See references of WO 0163218A2
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
WO 0163218 A2 20010830; WO 0163218 A3 20011206; CN 1232804 C 20051221; CN 1372631 A 20021002; DE 10009154 A1 20010913; EP 1180235 A2 20020220; JP 2003524173 A 20030812; KR 20020000634 A 20020105; US 2002148303 A1 20021017; US 6722196 B2 20040420
DOCDB simple family (application)
DE 0100690 W 20010223; CN 01800345 A 20010223; DE 10009154 A 20000226; EP 01919143 A 20010223; JP 2001562140 A 20010223; KR 20017013649 A 20011025; US 1816802 A 20020515