Method and apparatus for detecting a fouled fluid filter

Details Method and apparatus for detecting a fouled fluid filter Method and apparatus for detecting a fouled fluid filter

1994-05-24

1995-12-26

Williams, Hezron E.

Measuring and testing

With fluid pressure

Porosity or permeability

340607, G01N 1508

Patent

active

054777313

ABSTRACT:
A method and apparatus for detecting a fouled fluid filter are disclosed in which the fluid pressure at the outlet of the fluid filter is corrected by a correction pressure to determine a corrected pressure drop. Such a corrected pressure drop has a mathematical function which passes through a maximum magnitude before the fluid flowing through the fluid filter reaches a maximum value. The corrected pressure drop is monitored during the operation of the fluid filter and when the corrected pressure drop reaches a predetermined threshold value, before the engine with which the fluid filter is associated reaches its maximum power, an alarm will be actuated.

REFERENCES:
patent: 3033030 (1962-05-01), Heller
patent: 4918426 (1990-04-01), Butts et al.

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