Oil pump having plurality of outer rotor pieces
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United States of America Patent
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Oct 29, 2019
Grant Date -
Aug 3, 2017
app pub date -
Sep 25, 2015
filing date -
Nov 12, 2014
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Abstract
This oil pump includes a first volume-changing part provided between an inner rotor and an outer rotor and a second volume-changing part provided in the outer rotor. A plurality of outer rotor pieces, which is annularly connected to each other, of the outer rotor is circumferentially arranged in a state where a first engaging part and a second engaging part of the outer rotor pieces being adjacent to each other engage with each other such that a distance therebetween in a circumferential direction is variable.
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