Abstract
Experimental study of the newly designed vertical oil ejector pump, which has a boiler at the top, a condenser at the bottom and a gear pump for the return of oil, is described.
We studied characteristics of JLV-3, 5 (the trial pump of this type, 3, 5″inlet diameter) and confirmed its stable pump action at very high boiler pressure, then we designed and made JLV-16 and JLV-5 based on the results of JLV-3, 5
Critical backing pressure of JLV-16 and -5 are respectively 0.11 mmHg and 110 mmHg : pressure range of higher speed are respectively 0.010.1 mmHg and the combination of these pumps has practically uniform Q, value (3050 1mmHg/sec) in the pressure range from 3 to 0.01 mmHg.
