INJECTION OF HEAVY AND PARTICULATE LADEN FUELS

摘要

An atomiser injector includes: a central tube (12) terminating in a first outlet (16) for emitting a jet of particulate slurry fuel along a central axis (11), and structure (20) adjacent to the central tube so as to define with the tube a duct (22) communicating with one or more second outlets (25) for blast gas about the first outlet. This duct is configured (26) to accelerate the blast gas so that it emerges from the second outlet(s) as a blast stream of supersonic velocity. Adjacent the second outlet an internal face or faces (30) of the structure are axially convergent so as to direct the emergent supersonic blast stream into the jet of particulate slurry fuel downstream of the first outlet, thereby atomising the fuel.