公开(公告)号：US10371419B2

公开(公告)日：2019-08-06

申请号：US14895005

申请日：2014-06-03

Applicant: DENSO CORPORATION

Inventor： Norihiko Enomoto ,  Nobuharu Kakehashi ,  Michio Nishikawa ,  Yoshiki Katoh ,  Kengo Sugimura ,  Takashi Yamanaka ,  Masamichi Makihara

IPC: F25B13/00 ,  B60H1/00 ,  F25B25/00 ,  F25B30/02

Abstract: A vehicle air conditioning apparatus includes: at least one processor programmed to control a flow rate of at least one of a heat medium and outside air flowing through a heat medium-to-outside air heat exchanger such that a temperature of blast air cooled in an air-cooling heat exchanger is adjusted toward a first target temperature, and to control a flow rate of a refrigerant discharged from a compressor such that a temperature of blast air, which has been adjusted in at least one of the air-cooling heat exchanger and an air-heating heat exchanger and which is blown out into a vehicle interior, is adjusted toward a second target temperature. Accordingly, a surface temperature of the air-cooling heat exchanger and the temperature of the blast air into the vehicle interior can be properly controlled.

公开(公告)号：US11913684B2

公开(公告)日：2024-02-27

申请号：US17501402

申请日：2021-10-14

Applicant: DENSO CORPORATION

Inventor： Masamichi Makihara ,  Yoshiki Katoh ,  Takahiro Maeda ,  Kuniyoshi Tanioka ,  Akira Higuchi ,  Takehito Mizunuma ,  Takuya Hamada

IPC: F16K11/06 ,  F16K11/02 ,  F16K31/53 ,  F25B25/00 ,  F25B41/20

CPC classification number: F25B25/005 ,  F16K11/02 ,  F16K11/06 ,  F16K31/535 ,  F25B41/20

Abstract: A fluid circulation circuit includes a flow passage switching valve. The flow passage switching valve includes a body and a switcher. The body includes a first inlet, a second inlet, and outlets including a first outlet. The switcher is capable of switching a passage configuration to a state in which a fluid that has flowed in from the first inlet flows out of either one of the outlets and a state in which the fluid that has flowed in from the second inlet flows out of either one of the outlets.

公开(公告)号：US10703172B2

公开(公告)日：2020-07-07

申请号：US14907829

申请日：2014-07-16

Applicant: DENSO CORPORATION

Inventor： Masamichi Makihara ,  Norihiko Enomoto ,  Yoshiki Katoh ,  Kazutoshi Kuwayama ,  Nobuharu Kakehashi

IPC: B60H1/03 ,  B60K11/02 ,  B60H1/00

Abstract: A vehicular heat management system has a first valve body, a second valve body, a third valve body, and a fourth valve body. The first valve body switches a state that the heating medium discharged from the first pump flows in and a state that the heating medium discharged from the first pump does not flow in, with respect to the more than or equal to three of heating medium passing device. The second valve body switches a state that the heating medium discharged from the second pump flows in and a state that the heating medium discharged from the second pump does not flow in, with respect to the more than or equal to three of heating medium passing device. The third valve body switches a state that the heating medium flows to the first pump and a state that the heating medium does not flow to the first pump, with respect to the more than or equal to three of heating medium passing device. The fourth valve body switches a state that the heating medium flows to the second pump and a state that the heating medium does not flow to the second pump, with respect to the more than or equal to three of heating medium passing device.

公开(公告)号：US10065478B2

公开(公告)日：2018-09-04

申请号：US15120530

申请日：2015-02-23

Applicant: DENSO CORPORATION

Inventor： Masamichi Makihara ,  Takashi Yamanaka ,  Yasumitsu Omi ,  Koji Miura ,  Norihiko Enomoto ,  Nobuharu Kakehashi

IPC: B60H1/00 ,  B60K11/02 ,  F25B1/00 ,  B60K6/22 ,  B60K1/00

Abstract: A thermal management system for a vehicle includes a high-temperature side pump that draws and discharges a heat medium, a compressor that draws and discharges a refrigerant in a refrigeration cycle, a high-pressure side heat exchanger that exchanges heat between a high-pressure side refrigerant in the refrigeration cycle and the heat medium circulated by the high-temperature side pump, a heat medium-outside air heat exchanger that exchanges heat between the heat medium circulated by the high-temperature side pump and outside air, and a pump control unit that controls an operation of the high-temperature side pump such that the operation of the high-temperature side pump is continued even after the compressor is stopped. Thus, the cycle efficiency exhibited when restarting the compressor can be improved.

公开(公告)号：US09878594B2

公开(公告)日：2018-01-30

申请号：US14423666

申请日：2013-08-23

Applicant: DENSO CORPORATION

Inventor： Norihiko Enomoto ,  Nobuharu Kakehashi ,  Michio Nishikawa ,  Masamichi Makihara ,  Kazutoshi Kuwayama ,  Yoshiki Katoh ,  Kengo Sugimura

IPC: B60H1/32 ,  B60L1/00 ,  B60L1/02 ,  B60L3/00 ,  B60H1/00 ,  B60H1/08 ,  B60L11/18 ,  B60K11/02

CPC classification number: B60H1/32 ,  B60H1/00485 ,  B60H1/00878 ,  B60H1/08 ,  B60K11/02 ,  B60K2001/003 ,  B60K2001/005 ,  B60K2001/006 ,  B60L1/003 ,  B60L1/02 ,  B60L3/00 ,  B60L3/0092 ,  B60L11/1874 ,  B60L2240/34 ,  B60L2240/36 ,  B60L2240/425 ,  B60L2240/525 ,  B60L2240/545 ,  B60L2240/662 ,  Y02T10/642 ,  Y02T10/7005 ,  Y02T10/705 ,  Y02T10/7291 ,  Y02T90/16

Abstract: A thermal management system for a vehicle includes a first pump and a second pump, temperature adjustment target devices, heat exchangers, numerous flow paths including a first pump arrangement flow path, a second pump arrangement flow path, and device arrangement flow paths, a first switching portion for allowing the numerous flow paths to selectively communicate with each other, a second switching portion for allowing the numerous flow paths to selectively communicate with each other, and a reserve tank for storing therein heat medium. The reserve tank is configured to set the pressure of the liquid surface of the stored heat medium to a predetermined pressure (e.g., atmospheric pressure), and is connected to one flow path of the numerous flow paths.

公开(公告)号：US10479170B2

公开(公告)日：2019-11-19

申请号：US15113856

申请日：2015-01-26

Applicant: DENSO CORPORATION

Inventor： Norihiko Enomoto ,  Nobuharu Kakehashi ,  Yasumitsu Omi ,  Masamichi Makihara ,  Hiroshi Kishita

IPC: B60H1/32 ,  F25B25/00 ,  F25B29/00 ,  B60H1/00

Abstract: An air conditioner for a vehicle includes a pump that draws and discharges a heat medium, a cooler core that exchanges sensible heat between the heat medium and ventilation air into a vehicle interior to cool and dehumidify the ventilation air, a heat-medium and outside-air heat exchanger that exchanges sensible heat between the heat medium and outside air, a compressor adapted to draw and discharge a refrigerant in a refrigeration cycle, a heat-medium cooling heat exchanger that cools the heat medium by exchanging heat between a low-pressure side refrigerant in the refrigeration cycle and the heat medium, and first and second switching valves that switch between a first dehumidification mode for circulation of the heat medium between the cooler core and the heat-medium cooling heat exchanger and a second dehumidification mode for circulation of the heat medium between the cooler core and the heat-medium and outside-air heat exchanger.

公开(公告)号：US10391834B2

公开(公告)日：2019-08-27

申请号：US15114880

申请日：2015-01-19

Applicant: DENSO CORPORATION

Inventor： Norihiko Enomoto ,  Nobuharu Kakehashi ,  Kazutoshi Kuwayama ,  Masamichi Makihara ,  Takashi Yamanaka ,  Yasumitsu Omi ,  Koji Miura

IPC: B60H1/00 ,  F25B25/00 ,  F25B40/00

Abstract: An air conditioner includes: a heat-medium air heat exchanger that exchanges sensible heat between a heat medium having a temperature adjusted by the heat-medium temperature adjuster and ventilation air blowing to a space to be air-conditioned; a heat transfer portion having a flow path through which the heat medium circulates to transfer heat with the heat medium having the temperature adjusted by the heat-medium temperature adjuster; a large-inner-diameter pipe that forms a heat-medium flow path between the heat-medium temperature adjuster and the heat transfer portion; and a small-inner-diameter pipe that forms a heat-medium flow path between the heat-medium temperature adjuster and the heat-medium air heat exchanger. The small-inner-diameter pipe has small inner diameters ϕH and ϕC, compared to the large-inner-diameter pipe.

公开(公告)号：US10371420B2

公开(公告)日：2019-08-06

申请号：US14907836

申请日：2014-07-15

Applicant: DENSO CORPORATION

Inventor： Yoshiki Katoh ,  Masamichi Makihara ,  Kazutoshi Kuwayama ,  Norihiko Enomoto ,  Kengo Sugimura

IPC: B60H1/00 ,  B60H1/32 ,  F25B25/00 ,  F25B30/02 ,  F25B41/00 ,  F25B49/02 ,  H01M10/625 ,  H01M10/663

Abstract: An air conditioning device for a vehicle having a compressor that supplies a high-pressure refrigerant, an air heating heat exchanger heating air that is to be blown into a vehicle cabin, a pressure reduction part expanding and decompressing the high-pressure refrigerant so as to supply an intermediate-pressure refrigerant and a low-pressure refrigerant, a first low-pressure side heat exchanger exchanging heat between the intermediate-pressure refrigerant and a heating medium other than the air, a second low-pressure side heat exchanger cooling the heating medium by exchanging heat between the low-pressure refrigerant and the heating medium, a first heating medium circuit through which the heating medium cooled in the second low-pressure side heat exchanger circulates, and a heating medium-air heat exchanger.

公开(公告)号：US12049122B2

公开(公告)日：2024-07-30

申请号：US17484538

申请日：2021-09-24

Applicant: DENSO CORPORATION

Inventor： Koji Miura ,  Hiroaki Kawano ,  Motohiro Yamaguchi ,  Kazuya Taniguchi ,  Yoshiki Kato ,  Masamichi Makihara ,  Takahiro Maeda ,  Kuniyoshi Tanioka ,  Toru Okamura ,  Naoya Makimoto

IPC: B60H1/00 ,  B60H1/32 ,  F25B1/00 ,  F25B5/02

CPC classification number: B60H1/00899 ,  B60H1/32284 ,  F25B1/00 ,  F25B5/02 ,  B60H1/00278 ,  B60H2001/00928 ,  B60H2001/00942

Abstract: A refrigeration cycle device includes a heat pump cycle, a high-temperature heat medium circuit, and a low-temperature heat medium circuit. The low-temperature heat medium circuit includes a plurality of heat absorption devices configured to have a heat absorption amount to be absorbed by the low-temperature heat medium flowing out of a low-temperature heat medium-refrigerant heat exchanger, and a heat absorption adjusting unit configured to change the heat absorption amount of the low-temperature heat medium in the respective heat absorption devices. In the refrigeration cycle device, a flow amount of the refrigerant flowing into the low-temperature heat medium-refrigerant heat exchanger is reduced when the heat absorption adjusting unit changes the heat absorption amount of the low-temperature heat medium in the respective heat absorption devices, and the flow amount of the refrigerant flowing into the low-temperature heat medium-refrigerant heat exchanger is increased when a recovery condition is satisfied.

公开(公告)号：US20220069387A1

公开(公告)日：2022-03-03

申请号：US17454157

申请日：2021-11-09

Applicant: DENSO CORPORATION

Inventor： Takahiro Maeda ,  Yoshiki Katoh ,  Masamichi Makihara ,  Kuniyoshi Tanioka ,  Kouji Miura

IPC: H01M10/663 ,  B60H1/03 ,  B60H1/00 ,  H01M10/613 ,  H01M10/625 ,  H01M10/6568

Abstract: A cooling water circuit includes: a heat-radiating heat exchanger in which a cooling water is heated by heat radiated from an external heat medium; a heat-absorbing heat exchanger in which a cooling water is cooled by heat absorbed by an external heat medium; and a first heat exchanger and a second heat exchanger in which heat is exchanged between the cooling water and outside air. When a high-temperature cooling water heated by the heat-radiating heat exchanger flows through the first heat exchanger and the second heat exchanger, the first heat exchanger and the second heat exchanger are arranged in series for the cooling water to flow. When a low-temperature cooling water cooled by the heat-absorbing heat exchanger flows through the first heat exchanger and the second heat exchanger, the first heat exchanger and the second heat exchanger are arranged in parallel for the cooling water to flow.