Gerotor pump for a vehicle
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United States of America Patent
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Mar 6, 2018
Issued Date -
N/A
app pub date -
Nov 2, 2015
filing date -
Nov 2, 2015
priority date (Note) -
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Abstract
A gerotor pump is provided with a pump housing defining a chamber and having an inlet and an outlet separated by a planar surface. The planar surface defines a notch connected to the outlet. An inner gear member is rotatably and eccentrically supported within an outer gear member. The inner gear member defines a series of external teeth with a first tooth defining a fluid passage therethrough and a second tooth independent of fluid passages. The fluid passage is defined by an aperture extending axially through the first tooth fluidly connected to a channel extending across the first tooth on an end face of the inner gear member. The passage and the notch cooperate to form a fluid pathway for pressure relief and reduced tonal noise in the pump by disrupting harmonics during operation.
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