Gear pump with continuous variable output flow rate
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United States of America Patent
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Jul 28, 2015
Grant Date -
Feb 14, 2013
app pub date -
Apr 4, 2011
filing date -
Apr 12, 2010
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Gear pump with continuous variable output flow rate, comprises at least one first gear (3) is mounted on the first shaft (1), at least one second gear (4) is mounted on the second shaft (2), the first gear (3) and the second gear (4) are arranged axially movably against each other, the first gear (3) comprises the first ring (5) with flow passages (50), fitted on the first gear (3) tightly co-axially, the second gear (4) comprises the second ring (6) with flow passages (50), fitted on the second gear (4) tightly co-axially, whereas the first ring (5) is movable with the second gear (4) and the second ring (6) is movable with the first gear (3), the first gear (3) is sealed at one end by the first sealing (7) of the first gear (3) and at the other end by the second sealing (9) of the first gear (3), whereas sealings (7, 9) of the first gear (3) are arranged on the first shaft (1), the second gear (4) is sealed at one end by the first sealing (10) of the second gear (4) and at the other end by the second sealing (8) of the second gear (4), whereas sealings (10, 8) of the second gear (4) are arranged on the second shaft (2).
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