Device for determining the direction of flow

Details Device for determining the direction of flow Device for determining the direction of flow

1987-09-17

1989-06-27

Argenbright, Tony M.

Internal-combustion engines

Charge forming device

Fuel injection system

731182, 7320421, G01P 1304, F02D 4118, F02D 4130

Patent

active

048419389

ABSTRACT:
In order to recognize the occurrence of reverse flow in a rapidly pulsation stream of fluid flowing with constant mass flow in particular within the intake duct (10) of an internal combustion engine, there is proposed a device for determining the direction of flow having a turbulence-sensitive sensor element (12) which is arranged between a flow straightener (32) and an eddy element (16), the sensor element (12) being exposed to laminar or else to turbulent flow depending on the direction of flow.

REFERENCES:
patent: 3147618 (1964-09-01), Benson
patent: 3677085 (1972-07-01), Hoyakawa
patent: 3777563 (1973-12-01), Yamasaki et al.
patent: 3975951 (1976-08-01), Kohama et al.
patent: 4083244 (1978-04-01), Agar et al.
patent: 4304129 (1981-12-01), Kawai et al.

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