公开(公告)号：US20190030989A1

公开(公告)日：2019-01-31

申请号：US16082294

申请日：2017-02-24

Applicant: DENSO CORPORATION

Inventor： Koji MIURA ,  Yoshiki KATO ,  Nobuyuki HASHIMURA ,  Ariel MARASIGAN

IPC: B60H1/00 ,  B60H1/22 ,  B60H1/32

Abstract: A refrigeration cycle device includes a high-pressure side heat exchanger, a low-pressure side heat exchanger, a temperature-adjustment target device to be temperature-adjusted with a high-pressure side refrigerant, an exterior heat exchanger exchanging heat between the high-pressure side refrigerant or a low-pressure side refrigerant and outside air, a switching portion configured to switch between a heat dissipation mode in which the high-pressure side refrigerant dissipates heat into the outside air in the exterior heat exchanger and a heat absorption mode in which the low-pressure side refrigerant absorbs heat from the outside air in the exterior heat exchanger, a cooling request operation portion, and a controller configured to control an operation of the switching portion to perform the heat absorption mode when the cooling request operation portion operates to request cooling of the air and the temperature-adjustment target device needs to be warmed up.

公开(公告)号：US20180361828A1

公开(公告)日：2018-12-20

申请号：US16060036

申请日：2016-10-06

Applicant: DENSO CORPORATION

Inventor： Yoshiki KATO ,  Nobuyuki HASHIMURA ,  Koji MIURA ,  Norihiko ENOMOTO ,  Kengo SUGIMURA ,  Keigo SATO ,  Masayuki TAKEUCHI ,  Ariel MARASIGAN

IPC: B60H1/32

Abstract: A refrigeration cycle device includes: a first expansion valve that decompresses a refrigerant flowing out of a high-pressure side heat exchanger; an exterior heat exchanger that exchanges heat between the refrigerant flowing out of the first expansion valve and outside air; a second expansion valve that decompresses the refrigerant flowing out of the exterior heat exchanger; a low-pressure side heat exchanger arranged in series with the exterior heat exchanger; a cooler core that exchanges heat between the heat medium cooled by the low-pressure side heat exchanger and air to be blown into a vehicle interior to cool the air; and a controller configured to switch between a heat absorption mode and a heat dissipation mode by adjusting an amount of decompression in each of the first expansion valve and the second expansion valve.

公开(公告)号：US20180272839A1

公开(公告)日：2018-09-27

申请号：US15763503

申请日：2016-09-06

Applicant: DENSO CORPORATION ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

Inventor： Yoshiki KATO ,  Masayuki TAKEUCHI ,  Keigo SATO ,  Koji MIURA ,  Norihiko ENOMOTO ,  Kengo SUGIMURA ,  Ariel MARASIGAN ,  Ikuo OZAWA ,  Nobuharu KAKEHASHI ,  Yoshikazu SHINPO ,  Yoichi ONISHI ,  Toshio MURATA

IPC: B60H1/00 ,  B60H1/03 ,  B60H1/08 ,  B60H1/22

Abstract: A vehicular heat management device includes a first heat source, a second heat source, a heater core, a first heat medium pathway, a second heat medium pathway, a heater core pathway, a switching portion, and a control unit. The first heat source is provided in the first heat medium pathway, and the second heat source is provided in the second heat medium pathway. The heater core is provided in the heater core pathway. The switching portion switches between flowing connection and flowing disconnection. The control unit performs at least one of a switching control and a second heat source control when a temperature of the heat medium of the heater core pathway is at or above a predetermined temperature. In the switching control, the switching portion connects the second heat medium pathway to the heater core pathway. In the second heat source control, the second heat source generates heat.