evacuator to provide vacuum to a device in a reinforced thrust motor air system, with the evacuator defining a body, evacuator to provide vacuum and pneumatically driven vacuum pump

摘要

An evacuator for providing a vacuum to a device in a reinforced thrust motor air system is described. The evacuator defines a body comprising a converging drive section, a diverging discharge section, at least one suction port and a venturi opening located between a converging drive section outlet end and a diverging discharge section inlet end. A linear distance is measured between the output end and the input end. The linear distances are decreased in their length if a larger suction vacuum is required under a specific set of operating conditions, and the linear distances are increased in their length if a higher suction flow rate is required in the specific set of operating conditions. operation conditions.