专利名称：DEVICE FOR MEASURING THE MASS OF A
FLOWING MEDIUM
发明人：HECHT, HANS,RILLING,
HEINZ,LEHENBERGER,STEFAN,KONZELMANN, UWE
申请号：EP95935802.9申请日：19951024公开号：EP0741859B1公开日：20040218
摘要：Known devices for measuring the mass of a flowing medium have a
temperature-dependent measuring component which is housed in a measuring channeland around which the flowing medium flows. In a turbulent flow, unstable separationoccurring in the measuring channel causes so-called background noise of the measuringsignal emitted by the measuring component so that accurate measurement is difficult.The device according to the invention comprises, upstream of the measuring component(20) in the region of an inlet opening (36) in the measuring channel (33), a flow obstacle(50) taking the form of a trip edge (51) in order to generate in the region thereof atemporally and spatially stable separation area (54) such that temporally and spatiallyunstable separation areas are prevented. In this way the measuring signal backgroundnoise can be reduced. The invention is used for measuring the mass of a flowing medium,in particular for measuring the intake air mass of internal combustion engines.
申请人：ROBERT BOSCH GMBH,BOSCH GMBH ROBERT,ROBERT BOSCH GMBH
地址：DE
国籍：DE
更多信息请下载全文后查看
因篇幅问题不能全部显示，请点此查看更多更全内容