Non-lubricated rotary pump with discharge through end heads
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United States of America Patent
Stats
-
Feb 16, 1982
Grant Date -
N/A
app pub date -
Oct 12, 1979
filing date -
Oct 26, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A rotary fluid pump of a non-lubrication type having a pump cavity formed within a cylindrical stator housing and a pair of recessed end head assembles. A drive shaft is eccentrically journalled in the end heads with a rotor mounted thereon with vanes slidably disposed in radial grooves in the rotor. A pair of sealing plates disposed between the ends of the stator having and the end heads divide the pump cavity into a pair of end chambers and an intermediate rotor chamber. An outlet port provides fluid communication between the rotor chamber and a discharge hole in one of the end chambers so that fluid passage for discharge to the atmosphere is provided through the rotor chamber, outlet port, end chamber and discharge hole.
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