Pump stage assembly, external gear pump, use of a pump stage assembly and vehicle transmission
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United States of America Patent
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Jul 30, 2024
Grant Date -
Aug 4, 2022
app pub date -
Jun 17, 2020
filing date -
Jun 18, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A pump stage assembly for supplying lubricating oil, comprising: at least two pump suction stages and at least one pump pressure stage. The pump suction stages and the pump pressure stage are spaced apart from one another in a pump housing PG and have a common drive shaft. The pump suction stages are formed by a first assembly of at least three intermeshing external gearwheels and wherein the pump pressure stage is formed by a second assembly of two intermeshing external gearwheels. Here at least two respective tooth center points of the first external gearwheel assembly and the respective tooth center points of the second external gearwheel assembly are arranged in a common plane E-E which intersects the pump housing PG in a longitudinal direction.
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