Flow monitoring

Details Flow monitoring Flow monitoring

1987-04-17

1988-12-20

Levy, Stewart J.

Measuring and testing

Internal combustion engine or related engine system or...

Compression

G01M 1500

Patent

active

047918101

ABSTRACT:
An apparatus and a method are provided for detecting and monitoring flow of a fluid through an injector, such as a fuel injector (10) of a diesel engine. Ultrasonic waves are detected by a transducer (12), and signals passed through a filter (20), so as to observe broadband signals of frequency above 100 kHz. Such signals are due to turbulent flow through the injector orifice (38), and so enable the flow itself to be detected.

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patent: 4109517 (1978-08-01), Dyballa et al.
patent: 4523458 (1985-06-01), Daniel
patent: 4577496 (1986-03-01), Grover

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