Patent ID: 8372294

Claim:
A method for the continuous use of a vacuumized water knockout circuit integrated with a contaminated hydraulic-oil reservoir ( 1 ), said method comprising the following steps: by means of a vacuum pump ( 12 ), keeping both a treatment column ( 8 ) and the hydraulic-oil reservoir ( 1 ) vacuumized; by means of a pump ( 3 ), pumping the contaminated hydraulic oil up from a lower portion of an inclined tank ( 1 ) through a circulation filter ( 5 ) to a heating element ( 6 ) and further to the treatment column ( 8 ) in which the moisture is extracted from the oil; by means of the vacuum pump ( 12 ) and controlled oil flow, temperature and underpressure, drawing the water vapor continuously through a vapor cooler ( 13 ) into a condensate trap ( 15 ) which is emptied automatically via a valve ( 17 ); evacuating gases continuously from the vacuum pump ( 12 ) via a gas filter ( 18 ); and continuously transporting vapor out of the treatment column ( 8 ) by supplying air via an air filter ( 21 ) through a fixed nozzle ( 22 ), a valve ( 23 ) controlling and safeguarding system functions with respect to pressure.