Title:
PUMP DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/173827
Kind Code:
A1
Abstract:
A pump device (1) comprises a motor (40) having a shaft (5) that rotates about a center axis (J), and a pump (30) driven by the motor (40) via the shaft (5). The pump (30) has a pump rotor (31) that rotates together with the shaft (5), and a pump housing (35) having an accommodating part (37) that accommodates the pump rotor (31). The pump housing (35) has a pump body (36) having a first bearing (38) that supports the shaft (5), and a pump cover (40) placed such that the accommodating part (37) is between the pump body (36) and the pump cover (40). The pump cover (40) has a flow channel (43) through which oil is discharged and drawn in, and a second bearing (39) that rotatably supports the shaft (5) and is in communication with the flow channel (43). An end part (5a) on one axial-direction side of the shaft (5) is disposed inside the second bearing (39) or the flow channel (43).
Inventors:
ETO TAKAMITSU (JP)
KOBAYASHI YOSHIYUKI (JP)
HIGUCHI KOJI (JP)
HASHIMOTO YUTAKA (JP)
KOBAYASHI YOSHIYUKI (JP)
HIGUCHI KOJI (JP)
HASHIMOTO YUTAKA (JP)
Application Number:
PCT/JP2018/009457
Publication Date:
September 27, 2018
Filing Date:
March 12, 2018
Export Citation:
Assignee:
NIDEC TOSOK CORP (JP)
International Classes:
F04C15/00; F04C2/10
Foreign References:
| JP2017002793A | 2017-01-05 | |||
| JPS606631Y2 | 1985-03-02 | |||
| JPH06323266A | 1994-11-22 |
Attorney, Agent or Firm:
KOHO IP LAW (JP)
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