公开(公告)号：US20200217255A1

公开(公告)日：2020-07-09

申请号：US16736182

申请日：2020-01-07

Applicant: DENSO CORPORATION

Inventor： Masashi YAMAGUCHI ,  Etsugo YANAGIDA ,  Naoaki KONO ,  Tetsuji YAMANAKA ,  Atsushi TANAKA ,  Kunio NAMBA

IPC: F02D41/00 ,  F16K31/04 ,  F16K37/00 ,  F02D23/00 ,  F02B37/22

Abstract: An actuator is configured to drive a boost pressure control valve of a supercharger. The actuator includes: an electric motor; an output shaft; and a speed reducer that is configured to transmit rotation, which is outputted from the electric motor, to the output shaft after reducing a speed of the rotation outputted from the electric motor. The speed reducer has a plurality of gears that include an output gear joined to the output shaft. The plurality of gears further includes a metal gear and a resin gear of a compound gear, which are respectively formed as a large diameter gear and a small diameter gear and are integrated together in one piece. The output gear is a resin gear.

公开(公告)号：US20180191221A1

公开(公告)日：2018-07-05

申请号：US15736804

申请日：2016-06-07

Applicant: DENSO CORPORATION

Inventor： Naoaki KOUNO ,  Hiroki SHIMADA ,  Tetsuji YAMANAKA ,  Etsugo YANAGIDA

IPC: H02K5/22 ,  H02K7/116 ,  H02K7/08 ,  H02K7/14 ,  H02K11/215

CPC classification number: H02K5/22 ,  F16H1/06 ,  F16H57/03 ,  F16H57/032 ,  F16H2057/02034 ,  F16H2057/02082 ,  H02K5/04 ,  H02K5/225 ,  H02K7/088 ,  H02K7/116 ,  H02K7/14 ,  H02K11/215

Abstract: A plurality of reinforcing ribs, which extend from a cover-side bearing in an outer radial direction, is formed at a portion of a cover, at which a reaction force generated in response to operation of an electric actuator is applied. The reinforcing ribs can improve strength of the portion of the cover, at which the reaction force is applied. Therefore, it is possible to avoid a damage, such as deformation, a crack, at the resin cover caused by the reaction force applied to the cover.

公开(公告)号：US20180187791A1

公开(公告)日：2018-07-05

申请号：US15736477

申请日：2016-06-07

Applicant: DENSO CORPORATION

Inventor： Tetsuji YAMANAKA ,  Naoaki KOUNO ,  Hiroki SHIMADA ,  Etsugo YANAGIDA

IPC: F16K31/04 ,  F02B37/18 ,  F16H57/031 ,  F16H19/00 ,  F16H21/44 ,  H02K15/14 ,  H02K5/173 ,  H02K5/22 ,  H02K5/24 ,  H02K7/116 ,  H02K11/215

Abstract: A housing includes an opening portion, which opens in one direction. At the time of assembling, the opening portion of the housing is placed to face an upper side. Then, a wave washer, an electric motor and screws for motor fixation are assembled from the upper side, and a first intermediate shaft and a second intermediate shaft are press-fitted, and a lower bearing, an output shaft, a second intermediate gear, a first intermediate gear are assembled. Thereafter, a cover is installed from the upper side to the housing. Next, an actuator lever is connected to a distal end part of the output shaft. As discussed above, the electric actuator can be assembled without inverting an orientation of the housing, and thereby productivity can be improved.