#$%^&*AU2013201920A120130411.pdf#####42 ABSTRACT A method and apparatus is disclosed for ejecting material. An ejection chamber arranged to hold a portion of a selected liquid is provided. An Inlet valve is selectively 5 opened to transfer a portion of liquid Into the ejection chamber, Pressure of the liquid In the chamber is Increased. An exit valve of the ejection chamber Is selectively opened when a temperature of liquid In the ejection chamber is substantially equal to or greater than a saturation temperature associated wilh the liquid at a pressure at a location downstream of the exit valve. Liquid vapour and/or liquid is ejected from the ejection 10 chamber via the exit valve and then through a neck region.21 27 29 23 25 26 22 Fig. 2
