Metod och anordning för kontroll av en kompressors kapacitet

摘要

A method and device for evaluating the capacity of a compressor ( 1 ) by air being allowed to flow out from a pressure tank ( 3 ) through an opening of known geometry. Following a calculation, the quantity of evacuated air is obtained. After this, a compressor ( 1 ) pumps back up to the initial pressure in the pressure tank ( 3 ). The compressor capacity ( 1 ) is established by comparing the time it takes for the compressor ( 1 ) to pump back up to the initial pressure in the pressure tank ( 3 ) with the time it takes when an acceptable compressor ( 1 ) pumps the same quantity of air. By the compressor capacity ( 1 ) is here meant the quantity of air which the compressor ( 1 ) delivers per unit of time at a given compressor speed and counter-pressure.