Mass fluid flow sensor

The present invention involves a device 10 for detecting a condition of a flowing fluid within a vehicle having reduced sulfur ingress. The device includes a base plate 12 having a receiving surface and a circumferential edge and a printed circuit board 14 disposed on the receiving surface of the ba...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ROBERT EDWARD BELKE, EDWARD PAUL MCLESKEY, DAVID J THOMPSON
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The present invention involves a device 10 for detecting a condition of a flowing fluid within a vehicle having reduced sulfur ingress. The device includes a base plate 12 having a receiving surface and a circumferential edge and a printed circuit board 14 disposed on the receiving surface of the base plate. The device further includes a housing 15 having peripheral side walls attaching to the receiving surface adjacent the circumferential edge to define a peripheral interface enclosing the printed circuit board 14 within the housing. The device further includes an adhesive material 18 disposed at the interface to adhere the housing to the base plate. The adhesive material has a predetermined thermal expansion coefficient and a predetermined elastic modulus to reduce fluid ingress through the interface and to accommodate thermal expansions of the base plate and the housing.