公开(公告)号：US10851842B2

公开(公告)日：2020-12-01

申请号：US16295324

申请日：2019-03-07

Applicant: DENSO CORPORATION

Inventor： Toshihiro Hayashi ,  Hiroki Nagahashi ,  Kiyoshi Kurohata ,  Toshihiro Konishi ,  Shigeyoshi Sakuraba ,  Takayuki Hirose

IPC: F16D3/68 ,  F16H55/36 ,  F16D27/112

Abstract: A power transmission device includes an electromagnet, a rotor, an armature and a hub that couples the armature to a shaft of a driving target device. The hub includes an outer hub coupled to the armature, an inner hub coupled to the shaft, and an elastic member interposed between the outer hub and the inner hub. An outer peripheral side of the inner hub includes plural extending parts each extending outward in a radial direction. An inner peripheral side of the outer hub includes an inner peripheral side wall that overlaps with the extending parts in a rotational direction and surrounds the extending parts. The elastic member is disposed in an unbonded state with respect to at least one of the inner hub and the outer hub between the outer peripheral side of the inner hub and the inner peripheral side of the outer hub.

公开(公告)号：US11286997B2

公开(公告)日：2022-03-29

申请号：US16581880

申请日：2019-09-25

Applicant: DENSO CORPORATION

Inventor： Toshihiro Konishi ,  Shigeyoshi Sakuraba ,  Takayuki Hirose ,  Toshihiro Hayashi ,  Kazuma Tachibana ,  Hiroki Nagahashi

IPC: F16D27/112 ,  F16D27/14 ,  F16D27/00

Abstract: An armature includes an inner plate located on an inner side of a groove and an outer plate located on an outer side of the groove. The hub includes: an outer hub; an inner hub that is coupled to a shaft; and a primary elastic member that is interposed between the inner hub and the outer hub and is configured to exert an elastic force to the outer hub in a direction away from a rotor. The outer hub includes an outer side coupling portion that is opposed to the outer plate and the inner plate and is coupled to the outer plate. The hub includes a secondary elastic member that is clamped between: the outer plate and the inner plate located on one side of the secondary elastic member; and the outer side coupling portion located on another side of the secondary elastic member.

公开(公告)号：US11353068B2

公开(公告)日：2022-06-07

申请号：US16545528

申请日：2019-08-20

Applicant: DENSO CORPORATION

Inventor： Toshihiro Konishi ,  Shigeyoshi Sakuraba ,  Takayuki Hirose ,  Toshihiro Hayashi

IPC: F16D27/112 ,  F16D9/02 ,  F16D27/14

Abstract: A power transmission device includes an electromagnet, a rotor, an armature and a hub. The hub couples the armature to a shaft of a drive-subject device. The hub includes: an outer hub that is coupled to the armature; a boss portion that is coupled to the shaft; an inner side plate-shaped portion that extends from the boss portion toward a radially outer side; and an inner plate that is placed between the outer hub and the inner side plate-shaped portion. The inner side plate-shaped portion and the inner plate are formed integrally in one piece. At least one of the inner side plate-shaped portion and the inner plate is formed by a member that is configured to deform or melt with heat generated by friction between the rotor and the armature when the shaft of the drive-subject device is locked at a time of energizing the electromagnet.

公开(公告)号：US09835205B2

公开(公告)日：2017-12-05

申请号：US15124050

申请日：2015-03-09

Applicant: DENSO CORPORATION

Inventor： Keiji Ishikawa ,  Takayuki Hirose ,  Yoshiki Tada

IPC: F16D13/76 ,  F16D27/112 ,  F16D3/76

CPC classification number: F16D13/76 ,  F16D3/76 ,  F16D27/112

Abstract: In an electromagnetic clutch, a rotor includes a cover portion that covers a radially outer end of an armature from a radially outer side. The cover portion, the radially outer end of the armature, and a wall of the rotor define a discharge passage that is formed into a ring shape centered on a rotating shaft and is open on a first end side in an axis line direction for discharging abrasion powder generated by friction between walls. The cover portion includes a tapered surface that is shaped such that an area in a cross sectional plane of the discharge passage which is orthogonal to an axis of the rotating shaft becomes larger toward the first end side in the axis line direction.

公开(公告)号：US09739544B2

公开(公告)日：2017-08-22

申请号：US14382922

申请日：2013-03-08

Applicant: Nippon Paint Surf Chemicals Co., Ltd. ,  Denso Corporation

Inventor： Norizumi Matsui ,  Akihiro Mizuno ,  Yuko Wada ,  Junsuki Hokka ,  Kenji Nakamura ,  Takayuki Hirose ,  Kengo Kobayashi

IPC: C23C22/40 ,  C23C22/56 ,  F28F13/18 ,  C23C22/44 ,  F28F19/06 ,  C23C22/83 ,  B23K1/00 ,  F28F21/08 ,  B23K1/20 ,  C23C22/34 ,  B05D3/10 ,  B05D3/02 ,  B23K101/14 ,  B23K103/10

CPC classification number: F28F13/18 ,  B05D3/0254 ,  B05D3/102 ,  B05D2202/25 ,  B23K1/0012 ,  B23K1/20 ,  B23K2101/14 ,  B23K2103/10 ,  C23C22/44 ,  C23C22/83 ,  F28F19/06 ,  F28F21/084

Abstract: A surface treatment method for aluminum heat exchangers including (a) a step wherein a chemical conversion coating film is formed on the surface of an aluminum heat exchanger by subjecting the aluminum heat exchanger to chemical conversion using a chemical conversion agent; (b) a step wherein the aluminum heat exchanger, the surface of which has been provided with a chemical conversion coating film in step (a), is brought into contact with a hydrophilizing agent that contains a hydrophilic resin; and (c) a step wherein a hydrophilized coating film is formed on the surface of the aluminum heat exchanger by baking the aluminum heat exchanger, which has been subjected to a contact treatment in step (b). The chemical conversion agent used in step (a) contains zirconium and/or titanium in an amount of 5-5,000 ppm by mass in total, vanadium in an amount of 10-1,000 ppm by mass and a metal stabilizer in an amount of 5-5,000 ppm by mass. In addition, the chemical conversion agent used in step (a) has a pH of 2-6.