Figure 7. Volume ratios on a 2-stage ejector [6,7], edited by the authors

From

Using the Vacuum in Handling Tasks in the Context of Operating Cost Savings

Sukop Marek, Tuleja Peter, Janos Rudolf, Jurus Ondrej, Marcinko Peter, Semjon Jan, Vagas Marek

Journal of Automation and Control. 2017, 5(2), 85-88 doi:10.12691/automation-5-2-12