Air mass flowmeter with controlled flow separation position

Details Air mass flowmeter with controlled flow separation position Air mass flowmeter with controlled flow separation position

2005-09-20

2005-09-20

Lefkowitz, Edward (Department: 2855)

Measuring and testing

Volume or rate of flow

Thermal type

Reexamination Certificate

active

06945105

ABSTRACT:
An air mass flowmeter, suitable for connection to an air-intake manifold of an internal combustion engine, measures an air mass taken in by the engine. The flowmeter has an air passage consisting of a first channel and a second channel joined by a turning area. An air mass sensor is located in the second channel downstream of the turning area, on an inner wall of the second channel. A flow element is located in the turning area, projects from an inner wall of one of the channel sections towards a curved wall of the turning area to define a point of separation of a stream of air from an inner channel wall upstream of the air mass sensor.

REFERENCES:
patent: 5712425 (1998-01-01), Hecht et al.
patent: 6220090 (2001-04-01), Kohno et al.
patent: 6336360 (2002-01-01), Weber
patent: 10019149 (2001-11-01), None
patent: 10135142 (2002-10-01), None
patent: 0908704 (1999-04-01), None
patent: 0940657 (1999-09-01), None
patent: 2128754 (1984-05-01), None

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