Bi-directional pump
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United States of America Patent
Stats
-
May 27, 1980
Grant Date -
N/A
app pub date -
Nov 3, 1976
filing date -
Nov 3, 1976
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A bi-directional pump having a pump housing, an inlet communicating with one end of the housing, an outlet communicating with the other end of the housing, an impeller within the housing adjacent the inlet, a baffle plate within the housing adjacent the outlet, a shaft extending through the inlet and journaled in the baffle plate, the impeller being secured to the shaft for rotation with the shaft, the impeller having vanes extending radially from the shaft both the impeller and the baffle plate and being spaced from the interior of the housing, whereby fluid flows through the inlet, radially outwardly of the impeller, radially inwardly of the baffle plate, and through the outlet. In a specific embodiment, a pump stage can be positioned on both sides of a motor, and the motor rotor and the impeller of each pump can be secured to the same shaft for rotation, the shaft being journaled in the baffle plates of the pump stages. In other specific embodiments, a plurality of pump stages can be positioned on either side of the motor or on both sides of the motor utilizing the same shaft for the motor rotor and the pump impellers.
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