METHOD FOR CONTROLLING AN OIL LUBRICATED VACUUM PUMP

摘要

The invention relates to a method for monitoring the amount of oil flowing around the oil circuit of an oil lubricated vacuum pump (1), an oil filter (5) and an oil cooler (7, 8) being fitted in the oil circuit and the oil cooler being constructed as a heat exchanger and having oil and a coolant flowing through it; a precise monitoring of the oil flow and, consequently, a checking of the state of the filter is achieved either by measuring the temperature of the oil flow or the temperature of the coolant flow on the inlet side and the outlet side of the oil cooler (7, 8), comparing the two temperature values with each other and triggering a warning signal when the temperature difference exceeds or drops below a specified value.