ELECTRIC PUMP
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United States of America Patent
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Issued Date -
Dec 8, 2016
app pub date -
Jun 1, 2016
filing date -
Jun 1, 2016
priority date (Note) -
Published
status (Latency Note)
Importance
Abstract
An electric pump includes: a motor rotor having a cylindrical yoke; a pump portion having outer and inner rotors; a shaft transmitting a rotational force from the motor rotor to the pump portion; a motor housing in which a coil portion is fixed to an inner peripheral surface and the motor rotor is housed on the inside of the coil portion; and a pump main body housing the pump portion, wherein the pump main body has a bearing portion supporting a portion of the shaft between the motor rotor and the inner rotor, and the inner rotor has a first recessed portion of a diameter greater than that of the shaft on a side facing the bearing portion and a part of the bearing portion is inserted into the first recessed portion to be disposed.
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