Ejector

摘要

An ejector 110 having an additional nozzle 173 for issuing a fluid at a relatively high pressure through a throat 113 of the ejector 110 into an outlet 114 from the throat 113, so as to clear any material lodging in the outlet 114 and/or the throat 113. The additional nozzle 113 may be co-axial with the main nozzle 140 of the ejector 110, or angularly disposed from it.