Multi-stage hydraulic machine and a method of operating same
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United States of America Patent
Stats
-
Sep 27, 1983
Grant Date -
N/A
app pub date -
Oct 22, 1980
filing date -
Oct 29, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A multi-stage hydraulic machine which includes a plurality of runner housings or chambers each having a runner positioned therein, a head cover and an intermediate speed ring, movable guide vanes at an outside portion of the runner housing or chamber of the highest pressure stage, each of the runners having a runner crown with an exhaust hole bored through it, each of the runner housings or chambers having an exhaust chamber formed at the exit portion of the exhaust hole and a device for sealing water at the radially outside portion of the exhaust chamber, and a plurality of exhaust paths provided in each of the exhaust chambers to the exterior of the machine respectively. Additionally, a method for operating the machine is disclosed.
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