Title:
Multi stage oil pump
Document Type and Number:
Japanese Patent JP6027768
Kind Code:
B2
Abstract:
With conventional multistage oil pumps, all the components are formed of a ferrous material, and thus there have been presented a problem that the weight is large. With a multistage oil pump 1, rotors 6, 7 are connected in series. With a rotor case 2, a first rotor case 41 and a second rotor case 42 are connected in the axial direction, and the inside thereof is partitioned by a spacer 5. The first rotor case 41 and the second rotor case 42 are jointed to the spacer 5 with dowel pins 8. The rotors 6, 7 are formed of a ferrous material, while the spacer 5 being formed of an aluminum-based material.
Inventors:
Hiroyuki Oda
Application Number:
JP2012113479A
Publication Date:
November 16, 2016
Filing Date:
May 17, 2012
Export Citation:
Assignee:
Mikuni Corporation
International Classes:
F04C2/10; F04C11/00; F04C15/00
Domestic Patent References:
| JP11022656A | ||||
| JP6323261A | ||||
| JP7167066A |
Attorney, Agent or Firm:
Shiroyuki Hori
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