Side channel self priming fuel pump having reservoir
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United States of America Patent
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-
Feb 14, 1989
Grant Date -
N/A
app pub date -
Mar 24, 1987
filing date -
Mar 24, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A side channel pump (10) has a pumping cavity (26) which includes an inlet port (78), a discharge port (80) and side channels (72,74). An impeller (54) is mounted for rotation in the pumping cavity. A reservoir (20) holds an ample supply of liquid for pump priming and pump cooling during periods of gas pumping. A bypass suction duct (24) carries liquid from the reservoir to the pumping cavity during priming, gas pumping and normal operating and a bypass return duct (22) returns some discharged liquid to the reservoir during gas pumping and normal operation. The reservoir acts as a heat sink to enable the liquid ring formed during gas pumping operation to absorb more heat and provide pump cooling.
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