Hydraulic machine having teeth formed by rollers
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United States of America Patent
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-
Jan 21, 1997
Grant Date -
N/A
app pub date -
Nov 27, 1995
filing date -
Apr 5, 1993
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hydraulic machine is disclosed, having an annular gear with internal teeth and a gearwheel with external teeth mounted eccentrically therein, the internal teeth comprising one more tooth than the external teeth and the teeth of at least one set of teeth being formed by rotatably mounted rollers. It is desirable in such a machine for the internal seal to be improved and wear to be reduced. To that end, each roller has in its surface at least three axially parallel recesses, in which the teeth of the other set of teeth engage.
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