Leakage sensor apparatus for fluid passageway

Details Leakage sensor apparatus for fluid passageway Leakage sensor apparatus for fluid passageway

1979-04-16

1981-05-26

Goldberg, Gerald

Measuring and testing

With fluid pressure

Leakage

G01M 326

Patent

active

042690617

ABSTRACT:
A fluid pressure passageway (14) such as a high pressure fuel line in a fuel injection system is pressurized to an upper predetermined value. Then, the passageway (14) is isolated and the length of time for the pressure to drop to a lower predetermined value is measured. The greater the degree of leakage, the shorter the measured length of time. An alarm (24) is energized when the measured length of time is shorter than a predetermined length of time.

REFERENCES:
patent: 3800586 (1974-04-01), Delatorre et al.
patent: 3874225 (1975-04-01), Fegel
patent: 4078421 (1978-03-01), Gastaldo et al.
patent: 4172477 (1979-10-01), Reich
patent: 4197531 (1980-04-01), Wentworth, Jr.

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