公开(公告)号：US11187432B2

公开(公告)日：2021-11-30

申请号：US16696855

申请日：2019-11-26

Applicant: DENSO CORPORATION

Inventor： Keita Morimoto ,  Tomohiko Nakamura ,  Tatsuhiko Nishino ,  Toshiya Nagasawa ,  Masahiro Shimoya ,  Mitsuyoshi Saito ,  Shota Chatani

IPC: F28F1/10 ,  F24F13/22 ,  F25B39/02 ,  F28F1/30 ,  F28F1/32

Abstract: A heat exchanger includes a tube, a corrugated fin, and a plurality of grooves. The corrugated fin has a plurality of bent portions and a plurality of fin main bodies disposed between the bent portions. The multiple grooves are arranged at specified intervals from each other and are formed on a surface of the corrugated fin to enhance the hydrophilicity of the surface. The corrugated fin includes a first thick portion in which at least one of the grooves is included and a second thick portion thicker than the first thick portion in a cross-sectional view along an extending direction of the bent portions.

公开(公告)号：US12228351B2

公开(公告)日：2025-02-18

申请号：US17943246

申请日：2022-09-13

Applicant: DENSO CORPORATION

Inventor： Keita Morimoto ,  Tomohiko Nakamura ,  Mitsuyoshi Saito ,  Tatsuhiko Nishino ,  Shota Chatani ,  Toshiya Nagasawa

IPC: F28F17/00 ,  F25B39/02 ,  F28D1/053 ,  F28D21/00 ,  F28F1/12 ,  F28F1/32

Abstract: A heat exchanger includes tubes arranged in one direction, and a corrugated fin provided between the tubes. The corrugated fin includes joints joined to the tubes, and fin bodies that connect the joints which are located next to each other along the wave shape. The fin body includes a cut-raised portion that has a shape in which a part of the fin body is cut and raised for promotion of heat transfer. The cut-raised portion includes a cut-raised end on at least one end of the cut-raised portion in the one direction. The cut-raised end has recesses and projections on its surface that increase hydrophilicity of the surface of the cut-raised end.

公开(公告)号：US12241699B2

公开(公告)日：2025-03-04

申请号：US17857677

申请日：2022-07-05

Applicant: DENSO CORPORATION

Inventor： Hiroshi Hamada ,  Tomohiko Nakamura ,  Ichio Kamei ,  Shota Chatani

IPC: F28F9/02 ,  F28F9/22

Abstract: A heat exchanger includes tubes, a tank, and a prevention plate arranged inside the tank and contacting end surfaces of the tubes to prevent heat medium from flowing into the tubes in a certain region. Flow paths are formed in each tube and arranged in a width direction of the tube. The prevention plate includes a deformable portion elastically deformable by contacting an edge of the opening at a time of inserting the prevention plate into the tank from the opening. The deformable portion of the prevention plate that has been inserted into the tank is restored and receives a reaction force from an inner surface of the tank such that the prevention plate is shifted along the width direction by the reaction force.

公开(公告)号：US10168084B2

公开(公告)日：2019-01-01

申请号：US14889505

申请日：2014-05-09

Applicant: DENSO CORPORATION

Inventor： Aun Ota ,  Naohisa Ishizaka ,  Norimasa Baba ,  Shota Chatani ,  Masakazu Nagaya ,  Eiichi Torigoe ,  Kengo Kazari ,  Daisuke Haseba

IPC: F25B39/02 ,  F28F9/02 ,  F28D1/053 ,  F28D21/00

Abstract: A refrigerant evaporator has an interchange part. The interchange part connects a first collecting part of a second downstream tank part, and a second distribution part of a second upstream tank part. The interchange part connects a second collecting part of a second downstream tank part, and a first distribution part of a second upstream tank part. The interchange part swaps a refrigerant about a width direction of a core. Refrigerant passages relevant to the interchange part are configured to improve refrigerant distribution. Providing a plurality of passages and/or twisting a passage improve distribution.

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：US10677537B2

公开(公告)日：2020-06-09

申请号：US15569838

申请日：2016-04-19

Applicant: DENSO CORPORATION

Inventor： Yuusuke Kitou ,  Jun Abei ,  Norihide Kawachi ,  Eiichi Torigoe ,  Shota Chatani

IPC: F28F1/12 ,  B60H1/00 ,  F25B39/02 ,  F28D20/02 ,  F28F1/40 ,  F28D1/053 ,  F28D21/00 ,  F28D20/00

Abstract: An evaporator includes multiple cold storage mechanisms for lowering a temperature of a cold storage material housed inside a cold storage container by heat exchange with a refrigerant. The multiple cold storage mechanisms include a first cold storage mechanism and a second cold storage mechanism higher in heat storage-and-radiation performance than the first cold storage mechanism.

公开(公告)号：US10161659B2

公开(公告)日：2018-12-25

申请号：US14890689

申请日：2014-05-16

Applicant: DENSO CORPORATION

Inventor： Naohisa Ishizaka ,  Tatsuhiko Nishino ,  Shota Chatani

IPC: F25B39/02 ,  F25B39/00 ,  F28F9/02 ,  F28D1/053 ,  F28D21/00

Abstract: A first evaporation unit and a second evaporation unit are coupled via a refrigerant interchanging portion having a first communication portion and a second communication portion. A first partition member is provided in a tank portion of the first evaporation unit to define a first tank internal space and a second tank internal space. The first partition member has a first communication hole to let the first tank internal space and the second tank internal space communicate with each other. A second partition member is provided in a tank portion of the second evaporation unit to define a third tank internal space and a fourth tank internal space. The second partition member has a second communication hole to let the third tank internal space and the fourth tank internal space communicate with each other.

公开(公告)号：US12253312B2

公开(公告)日：2025-03-18

申请号：US17866742

申请日：2022-07-18

Applicant: DENSO CORPORATION

Inventor： Shota Chatani ,  Hiroshi Hamada ,  Mitsugu Nakamura ,  Tomohiko Nakamura ,  Ichio Kamei

IPC: F28F9/02 ,  F28D1/053 ,  F28F1/12 ,  F28F9/18

Abstract: A heat exchanger includes tubes arranged side by side, and a tank connected to ends of the tubes. The heat exchanger performs heat exchange between a first fluid flowing inside the tubes and a second fluid flowing outside the tubes. The heat exchanger includes a closing member disposed inside the tank and partially closing an opening provided at an end of a predetermined tube that is at least one of the tubes. The predetermined tube has a protrusion formed at the end of the predetermined tube. The closing member has an avoiding structure that avoids interference between the protrusion and the closing member.

公开(公告)号：US11601074B2

公开(公告)日：2023-03-07

申请号：US17211279

申请日：2021-03-24

Applicant: DENSO CORPORATION ,  TOKYO INSTITUTE OF TECHNOLOGY ,  NATIONAL UNIVERSITY CORPORATION TOKAI NATIONAL HIGHER EDUCATION AND RESEARCH SYSTEM

Inventor： Daichi Sakurai ,  Seiichiro Washino ,  Shota Chatani ,  Haruhiko Watanabe ,  Masatoshi Shioya ,  Daisuke Kimura ,  Toshihira Irisawa ,  Kentaro Takagi ,  Takashi Hasegawa

IPC: H02N10/00 ,  F03G7/06

Abstract: An actuator capable of attaining high output. The actuator includes a frame structure part that forms a frame structure surrounding a housing part, and a volume change part housed in the housing part. The volume change part increases a volume thereof by input of external energy. The frame structure part has a higher Young's modulus than a Young's modulus of the volume change part. The housing part has an anisotropic shape, with a maximum width in first direction of the housing part longer than a maximum width in second direction different from the first direction of the housing part.

公开(公告)号：US09631841B2

公开(公告)日：2017-04-25

申请号：US14383034

申请日：2013-03-04

Applicant: DENSO CORPORATION

Inventor： Naohisa Ishizaka ,  Norimasa Baba ,  Ichio Kamei ,  Kengo Kazari ,  Shota Chatani

IPC: F25B39/02 ,  F25B5/00 ,  F28D1/053

CPC classification number: F25B5/00 ,  F25B39/02 ,  F28D1/05308 ,  F28D1/05391

Abstract: A refrigerant evaporator includes four core portions. A part of the refrigerant passes through a first core portion and a fourth core portion. The other part of the refrigerant passes through a second core portion and a third core portion. An exchanging unit exchanges the positions where the refrigerant flows. A passage through which the second core portion communicates with the third core portion includes a throttle passage in the intermediate tank unit. The throttle passage and the end portion of the intermediate tank unit reverse the refrigerant flow toward a partitioning member. Since the distribution of a liquid-phase refrigerant is adjusted by the throttle passage, a concentration of the liquid-phase refrigerant on a position in the vicinity of an outlet of the third core portion is suppressed. Accordingly, the concentration of the liquid-phase refrigerant in the core portions located downstream of the refrigerant flow is suppressed.