Title:
燃料ポンプモータ用の積層カーボンブラシ
Document Type and Number:
Japanese Patent JP6549120
Kind Code:
B2
Abstract:
A laminated carbon brush for a liquid pump motor slides in a liquid fuel on a disk-like commutator. The laminated carbon brush includes two layers of a lower resistivity layer and a higher resistivity layer. In both the lower resistivity layer and the higher resistivity layer, circular directional resistivities of the brush along a circular direction in the rotation of the commutator are higher than non-circular directional resistivities of the brush along a radial direction of the commutator and a perpendicular direction to the sliding surface of the commutator. A non-circular directional resistivity of the higher resistivity layer are higher than or equal to 90,000 µ ©·cm. No spark discharges occur if the fuel pump motor is operated to output a high power.
Inventors:
Makoto Nishio
Nishino Yuya
Nishino Yuya
Application Number:
JP2016534483A
Publication Date:
July 24, 2019
Filing Date:
July 16, 2015
Export Citation:
Assignee:
Trice Co., Ltd.
International Classes:
H02K13/00
Domestic Patent References:
| JP2012050276A | ||||
| JP2006187190A | ||||
| JP61124080A | ||||
| JP2007325401A | ||||
| JP2002199664A | ||||
| JP2002176750A | ||||
| JP2010200569A |
Foreign References:
| US20030155837 | ||||
| US20070035196 |
Attorney, Agent or Firm:
Akira Shioiri
Mika with salt
Mika with salt