公开(公告)号：US20230344304A1

公开(公告)日：2023-10-26

申请号：US18333399

申请日：2023-06-12

Applicant: DENSO CORPORATION

Inventor： Takafumi MATSUMOTO ,  Hiroto INOUE ,  Takuro SAHARA ,  Shinji HASHIMOTO ,  Ryu FUKUSHIMA ,  Ryotaro SUZUKI ,  Riku OUCHI ,  Shinji KAWADA ,  Toshihisa NAKAJIMA ,  Seiichiro WASHINO

IPC: H02K7/10 ,  H02K49/00 ,  F04D25/02 ,  B60H1/32

CPC classification number: H02K7/10 ,  H02K49/00 ,  F04D25/026 ,  B60H1/3204 ,  B60H2001/3286

Abstract: A power transmission device includes: a pole piece configured to rotate by modulating a magnetic flux between a drive-side magnet and a stationary magnet; and a sealing member that partitions an inside of a housing into a driving side space where the drive-side magnet is disposed and a driven side space where the stationary magnet and the pole piece are disposed, so as to seal fluid between the driving side space and the driven side space. The pole piece and the stationary magnet have a cylindrical shape and are disposed coaxially with and radially outer side of the drive-side magnet. The sealing member includes: a sealing cylinder portion positioned radially outer side of the drive-side magnet; and a sealing bottom surface portion covering the sealing cylinder portion from the driving side space.

公开(公告)号：US20210102635A1

公开(公告)日：2021-04-08

申请号：US17110119

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 ,  B60H1/32 ,  F16K31/08 ,  F16K31/53 ,  F16H25/20

Abstract: A valve device includes a valve, a drive device, a magnet coupling, and a screw mechanism. The valve includes a valve body and changes a flow mode of refrigerant flowing in a circulation path of a refrigeration cycle device. The drive device includes an electric drive unit as a drive source. The magnet coupling includes a driving-side rotary body and a driven-side rotary body that are magnetically connected to each other in a non-contact manner and transmits a rotary motion of the electric drive unit from the driving-side rotary body to the driven-side rotary body. The screw mechanism converts the rotary motion of the driven-side rotary body into an axial linear motion of the valve body. The valve device is configured to change the flow mode of refrigerant by using the linear motion of the valve body caused via the magnet coupling and the screw mechanism in response to the drive of the electric drive unit.

公开(公告)号：US20220294328A1

公开(公告)日：2022-09-15

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

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：US20210086588A1

公开(公告)日：2021-03-25

申请号：US17110584

申请日：2020-12-03

Applicant: DENSO CORPORATION

Inventor： Shinji KAWADA ,  Seiji TATEISHI ,  Hikaru OTSUKA ,  Hiroto INOUE ,  Shin KUWATA ,  Tetsuya ITO ,  Shinji HASHIMOTO

IPC: B60H1/32 ,  F16H25/20 ,  F16H49/00 ,  F16K27/00 ,  F16K31/04 ,  F16K31/44 ,  F25B41/06

Abstract: A valve device includes a valve that changes a flow state of refrigerant flowing in a circulation path of a refrigeration cycle device, and a drive device that drives the valve. The drive device includes an electric drive unit that drives the valve, a circuit board having a control circuit that controls a drive of the electric drive unit, and a detector that detects a state of the refrigerant. The electric drive unit, the circuit board and the detector are housed in a housing. The electric drive unit, the circuit board, and the detection body are electrically connected to each other inside the housing.

公开(公告)号：US20210116046A1

公开(公告)日：2021-04-22

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 ,  F16K31/08 ,  F16K31/50 ,  F16K31/53 ,  F16H25/20 ,  H02K26/00 ,  H02K7/116 ,  H02K7/06

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.

公开(公告)号：US20250034735A1

公开(公告)日：2025-01-30

申请号：US18914958

申请日：2024-10-14

Applicant: DENSO CORPORATION

Inventor： Toshihisa NAKAJIMA ,  Kota SHIBATA ,  Yasutoshi DOI ,  Shota CHATANI ,  Daichi SAKURAI ,  Shinji KAWADA ,  Hideaki OKAWA ,  Seiichiro WASHINO ,  Takashi KANEKO

IPC: C25B15/02 ,  B01D53/02 ,  B01D53/26

Abstract: A hydrogen production system includes a hydrogen generation device to generate hydrogen, and a compressor to compress the hydrogen. The hydrogen generation device and the compressor are connected by a first line. The compressor and a hydrogen utilization equipment to utilize the hydrogen compressed by the compressor are connected by a second line. A hydrogen storage unit to store the hydrogen compressed by the compressor is connected to the first line by a first bypass line. The first bypass line has a first control valve to control a flow of the hydrogen in the first bypass line.

公开(公告)号：US20210080022A1

公开(公告)日：2021-03-18

申请号：US17056056

申请日：2019-06-05

Applicant: DENSO CORPORATION

Inventor： Shinji KAWADA ,  Seiji TATEISHI ,  Hikaru OTSUKA ,  Hiroto INOUE ,  Shin KUWATA ,  Tetsuya ITO ,  Shinji HASHIMOTO

IPC: F16K31/04

Abstract: A valve device includes a valve, a driving device, and a transmission unit. The valve changes a circulation mode of refrigerant flowing through a circulation path of a refrigeration cycle system. The driving device drives the valve. The driving device includes a housing and an electric driving unit as a drive source. The transmission unit is arranged in a driving transmission path extending from the electric driving unit to the valve, and changes a speed of rotation generated by driving of the electric driving unit. The transmission unit is entirely or partially arranged in the housing that is partitioned from the circulation path in a liquid-tight manner.