Patent ID: 8100191
Filing Date: 2012-01-24
Classification: A61M,A62C,F23D,F23K,F23R

Abstract:
1. Apparatus for ejecting material, comprising: an ejection chamber arranged to hold and seal therein a portion of a selected liquid; an inlet valve arranged to selectively fully open to thereby transfer liquid into the ejection chamber and then fully close to seal the portion of liquid in the ejection chamber; and an exit valve arranged to selectively open to eject part or all of the portion of liquid material from said ejection chamber through the exit valve and then through a neck region as liquid vapour and/or liquid when at least one parameter associated with said ejection chamber satisfies a predetermined condition, the neck region being narrower in cross-sectional diameter than the ejection chamber such that the liquid vapour and/or liquid are ejected via a vapour explosion process when the exit valve opens; wherein said exit valve is arranged to open when a temperature of the liquid in the ejection chamber is above a boiling point temperature associated with said liquid at a downstream position from the exit valve.