Patent ID: 6752015
Filing Date: 2004-06-22
Classification: F02D,G01F

Abstract:
A device for detecting a condition of a flowing fluid within a vehicle, the device comprising:a base plate having a receiving surface and a circumferential edge, the base plate being made of a first material having a first coefficient of thermal expansion; a substrate having a printed circuit, the substrate being disposed on the receiving surface of the base plate; a housing including a cover and peripheral side walls extending therefrom, the side walls attaching to the receiving surface adjacent the circumferential edge to define a peripheral interface enclosing the substrate within the housing, the housing being made of a second material having a second coefficient of thermal expansion; and an adhesive material disposed at the interface between the circumferential edge and the peripheral side walls to adhere the housing to the base plate, the adhesive material having a predetermined thermal expansion coefficient and a predetermined elastic modulus to reduce fluid ingress through the interface and to accommodate thermal expansions of the first and second materials.