국제 및 국내 특허문헌 검색

1. (WO2018062089) PUMP DEVICE

Pub. No.:    WO/2018/062089    International Application No.:    PCT/JP2017/034496
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Tue Sep 26 01:59:59 CEST 2017
IPC: F04C 15/06
F04C 2/10
F04C 15/00
H02K 7/14
H02K 21/14
Applicants: NIDEC TOSOK CORPORATION
日本電産トーソク株式会社
Inventors: HOMMA Kazuhiro
本間 和博
ITO Yosuke
伊東 陽介
Title: PUMP DEVICE
Abstract:
This pump device 10 is provided with a shaft 41, a motor unit 20 which rotates the shaft 41, and a pump unit 30 which is driven by the motor unit 20 via the shaft 41 and which discharges oil. The pump device 10 comprises a first oil flow path which connects the inside of the pump unit 30 and the inside of a housing 12, a second oil flow path which is disposed between a stator 50 of the motor unit 20 and a rotor 40, a third oil flow path which is disposed radially outside or radially inside of the stator 50 and the rotor 40, and a fourth flow path through which oil from the second flow path or third flow path flows into the pump unit 30.