Stator with rigid retaining ring
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United States of America Patent
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-
Dec 23, 2003
Grant Date -
N/A
app pub date -
Apr 18, 2002
filing date -
Oct 18, 1999
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
On an eccentric screw pump or an eccentric screw motor, both the outer wall and the inner wall of the jacket (21) have a helicoid form. In order to stabilise the cross-sectional profile of the jacket (21) in the vicinity of the ends and to allow it to be simply coupled to the other housing sections (5, 6), a retaining ring (28) sits on each end of the jacket (21). The retaining ring contains a through channel (32), whose cross-sectional surface has a form which substantially corresponds to the cross-sectional surface that is delimited by the inner wall (23) or outer wall (24).
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