Device for measuring the mass of a flowing medium

Details Device for measuring the mass of a flowing medium Device for measuring the mass of a flowing medium

1981-01-23

1983-02-01

Birmiel, Howard A.

Measuring and testing

Volume or rate of flow

Thermal type

73116, G01F 168

Patent

active

043708870

ABSTRACT:
A device is proposed for measuring the mass of a flowing medium, in particular for measuring the aspirated air mass in internal combustion engines, which has a temperature-dependent resistor disposed in the flow of the medium, the temperature and/or resistance of which is controlled in accordance with the mass of the medium, the control variable serving as a standard for the mass of the medium. The temperature-dependent resistor is embodied as a hot strip or hot wire guided over at least three support points. In order to improve the measurement precision of the hot strip or hot wire and reduce the deposition of dust thereon, the hot element is provided at an inclination relative to the flow direction of the medium.

REFERENCES:
patent: 2849880 (1958-09-01), Obermaier
patent: 3971247 (1976-07-01), Rodder
patent: 4196622 (1980-04-01), Cornelius
patent: 4252016 (1981-02-01), Sauer et al.
patent: 4299124 (1981-11-01), Knapp
patent: 4299125 (1981-11-01), Romann et al.
patent: 4326412 (1982-04-01), Kobayashi et al.

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