公开(公告)号：US20250011943A1

公开(公告)日：2025-01-09

申请号：US18887689

申请日：2024-09-17

Applicant: DENSO CORPORATION

Inventor： Toshihisa NAKAJIMA ,  Kota Shibata ,  Yasutoshi Doi ,  Shota Chatani ,  Daichi Sakurai ,  Shinji Kawada ,  Hideaki Okawa ,  Seiichiro Washino ,  Takashi Kaneko

IPC: C25B1/04 ,  C25B9/73 ,  C25B15/029

Abstract: A hydrogen production system includes: cell stacks to produce hydrogen by electrolyzing water using supplied power; and a control unit. The control unit controls at least one specific cell stack of the cell stacks. The control unit selectively executes a load adjustment control to adjust a voltage or current of the power supplied to the specific cell stack, based on the amount of hydrogen production required for the entirety of the cell stacks, and an ON/OFF control to turn ON or OFF the power supplied to the specific cell stack.

公开(公告)号：US11824419B2

公开(公告)日：2023-11-21

申请号：US17828771

申请日：2022-05-31

Applicant: DENSO CORPORATION

Inventor： Shinji Kawada ,  Toshihisa Nakajima ,  Shin Sen

IPC: H02K49/10 ,  H02K7/11

CPC classification number: H02K49/102 ,  H02K7/11 ,  H02K49/108

Abstract: A drive transmission device includes a drive-side rotatable body, a plurality of magnetic conducting portions and a driven-side rotatable body. The drive-side rotatable body includes a plurality of magnetic poles arranged in a rotational direction. The magnetic conducting portions are magnetizable by the magnetic poles of the drive-side rotatable body. The driven-side rotatable body has a plurality of magnetic poles configured to be rotated in response to rotation of the magnetic poles of the drive-side rotatable body through the magnetic conducting portions. The drive transmission device is configured to be operated as a magnetic speed changer that changes a speed of rotation between the drive-side rotatable body and the driven-side rotatable body by differently setting the number of the magnetic poles of the drive-side rotatable body, the number of the magnetic conducting portions and the number of the magnetic poles of the driven-side rotatable body from each other.

公开(公告)号：US11496036B2

公开(公告)日：2022-11-08

申请号：US17110055

申请日：2020-12-02

Applicant: DENSO CORPORATION

Inventor： Shinji Kawada ,  Seiji Tateishi ,  Hikaru Otsuka ,  Hiroto Inoue ,  Shin Kuwata ,  Tetsuya Ito ,  Shinji Hashimoto

IPC: F16K31/04 ,  H02K49/10 ,  F16H25/20 ,  F16K31/08 ,  F16K31/50 ,  F16K31/53 ,  H02K7/06 ,  H02K7/116 ,  H02K26/00 ,  F25B41/34

Abstract: A valve device includes a valve, a drive device, and a transmission unit. A valve changes a flow mode of refrigerant that flows in a circulation path of a refrigeration cycle device. The transmission unit includes a driving-side rotary body, a magnetic transmission member, and a driven-side rotary body. The driving-side rotary body includes multiple magnetic magnet poles in a rotational direction. The magnetic transmission member includes multiple magnetic transmission bodies which are configured to be magnetized by the magnetic magnet poles. The driven-side rotary body includes multiple magnetic magnet poles in a rotational direction. The driven-side rotary body rotates in response to a rotary motion of the multiple magnetic magnet poles of the driving-side rotary body via the magnetic transmission body. The number of the magnetic magnet poles and the number of the magnetic transmission bodies are different from each other. The rotation is transmitted from the driving-side rotary body to the driven-side rotary body via the magnetic transmission member in a non-contact manner.