Gas flow rate and temperature measuring element

Details Gas flow rate and temperature measuring element Gas flow rate and temperature measuring element

2005-05-03

2005-05-03

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Volume or rate of flow

Thermal type

Reexamination Certificate

active

06886402

ABSTRACT:
Gas temperature detection wiring is provided with a first wiring portion disposed parallel to and in close proximity to a flow rate detector portion for a length substantially equivalent to a length of the flow rate detector portion; and a second wiring portion disposed so as to extend from the first wiring portion to an end portion of a pectinate pattern of a gas temperature detector portion. The gas temperature detection wiring is formed so as to connect electrode terminals and the gas temperature detector portion. A high-thermal-resistance portion having increased thermal resistance is constructed by reducing a width of a portion of the second wiring portion.

REFERENCES:
patent: 4909078 (1990-03-01), Sittler et al.
patent: 4912975 (1990-04-01), Ohta et al.
patent: 60-036916 (1985-02-01), None
patent: 06-249693 (1994-09-01), None
patent: 08-219838 (1996-08-01), None
Yutaka Nishimura, et al “Technique for measuring an intake air flow of an internal combustion engine in an automobile”(T.IEEE Japan, vol. 118-E,No. 6,'98,p. 300-303).

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