Apparatus and methods for moving a working fluid by contact with a transport fluid

A fluid mover comprising:

• a hollow body provided with a straight-through passage of substantially constant cross-section, said passage having an inlet end and an outlet end for the entry and discharge respectively of a working fluid,
• a transport fluid nozzle substantially circumscribing and opening into said passage intermediate the inlet and outlet ends thereof,
• a transport fluid inlet communicating with the transport fluid nozzle for the introduction of a transport fluid, and
• a mixing chamber being formed within the passage downstream of the transport fluid nozzle, the transport fluid nozzle being of convergent-divergent geometry internally thereof such as in use to provide for the generation of supersonic flow of the transport fluid therein, and the transport fluid nozzle and mixing chamber being so disposed and configured that in use a dispersed droplet flow regime and a supersonic shockwave are created within the mixing chamber by the introduction of the transport fluid through the transport fluid nozzle and subsequent condensation thereof and whereby a pseudo convergent-divergent section is created in the working fluid flow in the mixing chamber by the introduction of the transport fluid through the transport fluid nozzle.