My gut feeling is that it won't work due to the amount that the steam contracts when it condenses. Saturated steam at 100 psi has a volume 237 times greater than the water it came from. I can't see how the implosion of the steam as it condenses could be used to produce a high pressure stream of water. But then again I might have totally missed something. I would have thought that looking at the principals of a steam locomotive injector might be a better way to go. You can then choose between a high velocity low pressure jet or a low velocity high pressure jet, or something in between.