Shaft arrangement having a shaft which extends within a fluid-filled casing
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United States of America Patent
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Dec 2, 2014
Issued Date -
N/A
app pub date -
Apr 29, 2010
filing date -
Apr 29, 2009
priority date (Note) -
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status (Latency Note)
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Abstract
In the case of a shaft arrangement having a shaft (7) which extends within a casing (1) filled with a fluid and which can be actuated by means of a drive (8) from outwith the casing (1), the shaft (7) having on its outer peripheral surface a surface structure which conveys the fluid in a flow direction (30) in the longitudinal direction of the shaft during rotation, a sleeve (19) is provided according to the invention, which can rotate with the shaft and has at least one conveying element (20) for conveying the fluid in a counterflow direction opposite to the flow direction. As a result, a bubble-free conveyance of the fluid along the shaft (7) is facilitated.
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