Air quantity metering apparatus

Details Air quantity metering apparatus Air quantity metering apparatus

1980-08-12

1981-11-10

Gill, James J.

Measuring and testing

Volume or rate of flow

Thermal type

G01F 168

Patent

active

042991250

ABSTRACT:
An apparatus is proposed for metering air quantity, particularly for metering induction air quantity in internal combustion engines, which has a temperature-dependent resistor disposed within an air stream, the temperature and/or resistance value of which is regulated in accordance with the air quantity, and with the control value providing a standard for induction air quantity. The temperature-dependent resistor is embodied as a heating wire and is stretched in a V-shape on a carrier member, whereby the temperature coefficient of the carrier member and that of the heating wire are compatible with each other. The stretching of the wire is accomplished with the aid of support elements which are fixed within the carrier member. The heating wire has each end affixed at a support point, while it is guided only loosely over an intermediate support element.

REFERENCES:
patent: 1156630 (1915-10-01), Savage
patent: 3732722 (1973-05-01), Norem et al.
patent: 4074566 (1978-02-01), Obayashi et al.
patent: 4109510 (1978-08-01), Rodder

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