Turbo-machine having at least two counter-rotatable rotors and having mechanical torque compensation
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United States of America Patent
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Jul 16, 2013
Grant Date -
Mar 31, 2011
app pub date -
May 20, 2009
filing date -
May 27, 2008
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A turbo-machine includes at least two rotors which are mounted so as to be rotatable in opposite directions relative to one another about a rotational axis and on which are arranged blades or vanes, having a rotatably mounted machine shaft and having a drive mechanism which connects the machine shaft to the at least two rotors and which converts a rotational movement of the machine shaft into rotational movements of the rotors in opposite directions relative to one another or vice versa. In at least one embodiment, the turbo-machine is designed to utilize the hydrodynamic advantages of counter-rotating rotors yet at the same time have comparatively low mechanical complexity and component density and therefore increased reliability. This is possible according to at least one embodiment of the invention in that the turbo-machine has a housing which forms a duct for a flow of a fluid, wherein the rotors are arranged in series in the duct in the flow direction of the fluid, the machine shaft and the rotors are of annular design and are rotatably mounted in the housing, and wherein the annular rotors have in each case a ring inner side and a ring outer side, wherein the blades or vanes are arranged on the ring inner side.
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