Oil pump including gap between flange portion of tubular core and flange-opposing portion of resin housing
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United States of America Patent
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-
Sep 20, 2022
Grant Date -
N/A
app pub date -
Aug 22, 2019
filing date -
Aug 31, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An oil pump includes: a first core in which an inner rotor having external teeth and an outer rotor having internal teeth are housed; a housing having a recess in which the first core is held; a second core disposed in contact with the first core in an axial direction; and a cover having a holding hole in which the second core is held. The first core has a first recess/projection portion formed on a first axial end surface at a side opposite to an axial end surface opposing a bottom wall of the recess. The second core has a second recess/projection portion formed on a second axial end surface that is in contact with the first axial end surface. A gap is formed between opposing surfaces of the housing and the cover in a state where the first and second axial end surfaces are in contact with each other.
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Cited Art Landscape
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