Flow sensor having a sensor housing with main channel and a measuring channel with choke points

摘要

A flow sensor for measuring the flow of a gaseous or liquid medium with a sensor housing in which, between an inlet channel and an outlet channel, a flow channel extends that comprises a main channel and a measuring channel that is arranged parallel to the main channel. At least one main channel choke point is arranged in the main channel, and the measuring channel comprises a sensor element for measuring the flow. A measuring channel choke point in the measuring channel on the inlet and/or the outlet side, is arranged with the main channel choke point having at least one passage and the measuring channel choke point having a passage, both passages being of identical shape and extending parallel to each other in the flow direction.

主权项

1. A flow sensor for measuring the flow of a gaseous or liquid medium with a sensor housing in which, between an inlet channel and an outlet channel, a flow channel extends that comprises a main channel having and inlet side and an outlet side and a measuring channel having an inlet side and an outlet side that is arranged parallel to the main channel, with one main channel choke point being arranged in the main channel on the inlet side and the outlet side, and with the measuring channel comprising a sensor element for measuring the flow, wherein the main channel choke point comprises at least one passage between the inlet channel and/or the outlet channel and the main channel, and with at least one measuring channel choke point being arranged in the measuring channel on at least one of the inlet side or the outlet side, wherein the sensor housing comprises at least a first sensor housing part and at least one second sensor housing part and at least one other additional sensor housing part, between which at least one of the main channel or the measuring channel is formed as a recess in at least one of the first or the second or the at least one additional sensor housing part, and wherein the first or the second or the one other additional sensor housing part comprises at least one of the main channel choke point or the measuring channel choke point that extends transversely to the main channel and the measuring channel when the sensor housing parts are assembled.