Method of increasing service life of oil and a filter for use th

Details Method of increasing service life of oil and a filter for use th Method of increasing service life of oil and a filter for use th

1994-12-19

1996-09-03

McCarthy, Neil

Liquid purification or separation

Structural installation

Closed circulating system

210209, 210437, 210490, 2104935, 210501, 210506, B01D 3702, B01D 2706

Patent

active

055520405

ABSTRACT:
A method of increasing service life of an oil comprises placing a quantity of oil within a circuit, and placing a filter in the circuit, the filter having surfaces including interstices which contain a quantity of a liquid additive at a time of placement in the circuit, the additive being washed from the interstices of the filter into solution with the oil during filling and operation of the circuit to form a mixture of the oil and additive which reduces the formation of metallo-organic soaps. The oil may be an synthetic ester based oil or a mineral oil. The additive either reacts with an organic acid formed from hydrolysis of the oil during operation of the circuit to neutralize the acid, or alternatively the additive coats metallic wear particles formed during operation of the circuit so that organic acids formed from hydrolysis of the oil during operation of the circuit cannot attach thereto. A filter in accordance with the instant invention comprises an input for receiving oil and an output for discharging oil, and an element through which oil flows from the input to the output with the element having surfaces including interstices which contain a quantity of liquid additive at a time of placement in the circuit, the quantity of liquid additive being washed from the interstices of the filter into solution with the oil during filling and operation of an oil circuit to form a mixture of the oil and additive which reduces the formation of metallo-organic soaps.

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