Flow sensor of the thermal type

Jeroen Wouter Bos (Inventor), Ronald Wilhelmus Johannes Hoitink (Inventor), Johannes Henricus Besseling (Inventor), Joost Conrad Lötters (Inventor)

    Research output: Patent

    92 Downloads (Pure)


    A flow sensor of the thermal type having a U-shaped sensor tube with two legs and a connecting limb with two adjoining electrical resistance elements, and with a housing. The sensor tube has an inlet side and an outlet side. The housing has a first and a second housing part of a thermally well-conducting material, each with an inner surface provided with cavities and with an outer surface. The housing parts are placed with their inner surfaces against each other, while the U-shaped sensor tube has a main surface that extends parallel to the inner surfaces.; The housing parts surround the connecting limb and the legs of the U-shaped sensor tube such that the sensor tube is thermally clamped in between the housing parts in two locations: a first location situated between its inlet side and the upstream resistance element, and a second location situated between its outlet side and the downstream resistance element.
    Original languageUndefined
    Patent numberUS7437928
    Publication statusAccepted/In press - 21 Oct 2008


    • IR-76940
    • EWI-20138

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