公开(公告)号：US20180102680A1

公开(公告)日：2018-04-12

申请号：US15616829

申请日：2017-06-07

Applicant: COAVIS

Inventor： Gyu Sang YU ,  Hyun Tae LEE ,  Wan Sung PAE

IPC: H02K1/17 ,  F02M59/44

CPC classification number: H02K1/17 ,  F02M59/44 ,  H02K23/04 ,  H02K29/03 ,  H02K2201/03 ,  H02K2213/03

Abstract: Provided is a DC motor for a fuel pump for a vehicle. The DC motor for a fuel pump for a vehicle includes: a housing whose inside is hollow; a stator coupled to the inside of the housing and having a first permanent magnet whose N pole is disposed inwardly in a radial direction and a second permanent magnet whose S pole is disposed inwardly in a radial direction, the first permanent magnet and the second permanent magnet being spaced apart from each other to face each other; and a rotor disposed on an inside of the stator while being spaced apart from the stator, in which a first gap g1 between the first permanent magnet and the rotor is different from a second gap g2 between the second permanent magnet and the rotor, whereby a torque ripple that is a fluctuation width of a cogging torque is reduced.

公开(公告)号：US20170117772A1

公开(公告)日：2017-04-27

申请号：US15299232

申请日：2016-10-20

Applicant: COAVIS

Inventor： Hyun Tae LEE ,  Gyu Sang YU ,  In Seok SOHN

IPC: H02K5/14 ,  F02M59/44

Abstract: The present invention relates to a fuel pump for vehicle supplying power to a commutator and an armature through a brush to prevent the brush from shake, which comprises the brush, a spring mounted on a top of the brush, the commutator contacted to a bottom of the brush, a brush holder surrounding the brush and the spring, and a first hole formed for fuel flow at a front side of the brush holder in a rotational direction of the commutator based on the brush.