Locomotive oil filter

Details Locomotive oil filter Locomotive oil filter

1985-10-09

1987-04-07

Sever, Frank

Liquid purification or separation

Processes

Separating

2105001, 210503, 210508, B01D 2904

Patent

active

046559396

ABSTRACT:
Provided is a novel locomotive oil filter for use in locomotive applications. The filter is comprised of a pulp which is comprised of lignin-containing fibers derived from a fiber source having a lignin content of at least about 10% by thermomechanically pulping a fiber source under temperature/pressure conditions of 300.degree. F.-350.degree. F./50 psig-120 psig and a refiner energy utilization of about 8-35 HPD/ADT. The locomotive oil filter comprising the pulp of such lignin-containing fibers overcomes the severe problems of filter swelling and plugging due to water in the locomotive oil, while also providing one with improved filtration capacity and good filtration. The use of such lignin-containing fiber pulp also gives one the economic advantage of substitution for the more expensive cotton linter generally used heretofore in railroad/locomotive lube oil filters. The pulp of lignin-containing fibers can be used in combination with other suitable pulps, e.g., high alpha cellulose content pulps, in making the filter media.

REFERENCES:
patent: 4455237 (1984-06-01), Kinsley

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