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公开(公告)号：US10155428B2
公开(公告)日：2018-12-18
申请号：US15531663
申请日：2015-12-08
Applicant: DENSO CORPORATION
Inventor： Kota Sakamoto , Shin Nishida , Michio Nishikawa
Abstract: A refrigeration cycle device has a compressor, a radiator, an auxiliary heat exchanger, a decompressor, an evaporator, and an interior heat exchanger. The auxiliary heat exchanger performs a heat exchange between refrigerant and air and causes the refrigerant to radiate heat. The evaporator performs a heat exchange between air and refrigerant after being decompressed in the decompressor before the air is heated in the auxiliary heat exchanger. The interior heat exchanger has a first heat exchanging portion and a second heat exchanging portion and performs a heat exchange between refrigerant flowing in the first heat exchanging portion and refrigerant flowing in the second heat exchanging portion. The first heat exchanging portion is disposed in a refrigerant path between the radiator and the decompressor and is connected to the auxiliary heat exchanger in series. The second heat exchanging portion is disposed in a refrigerant path between the evaporator and the compressor.
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公开(公告)号：US11148508B2
公开(公告)日：2021-10-19
申请号：US16237783
申请日：2019-01-02
Applicant: DENSO CORPORATION
Inventor： Takashi Danjo , Atsushi Yamada , Takayuki Ota , Shin Nishida
Abstract: A first header tank and a second header tank of a cold-storage heat exchanger are located away from each other. Refrigerant tubes include refrigerant passages through which the first header tank and the second header tank communicate with each other. The refrigerant tubes are spaced away from each other. Cold energy containers storing cold energy storage members are provided to close air passage portions defined between the refrigerant pipes. A region including the air passage portions are separated into a first region including a center part of the region and a second region that is remaining part of the region. A proportion of the cold energy containers in the second region is larger than that in the first region.
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公开(公告)号：US11124044B2
公开(公告)日：2021-09-21
申请号：US16381357
申请日：2019-04-11
Applicant: DENSO CORPORATION
Inventor： Takayuki Ota , Shin Nishida , Takashi Danjo
Abstract: An air conditioner includes a circulation flow channel in which a refrigerant circulates, an evaporator provided in the circulation flow channel to cool air by heat exchange with the refrigerant passing through the circulation flow channel, a first cold storage unit provided in the evaporator at a position adjacent to a tube in which the refrigerant flows in the evaporator, and a second cold storage unit provided in the circulation flow channel at a position different from the evaporator. The first cold storage unit is configured to store therein a first cold storage material which changes in phase by the heat exchange with the refrigerant passing through the tube, and the second cold storage unit is configured to store therein a second cold storage material which changes in phase by the heat exchange with the refrigerant passing through the circulation flow channel.
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公开(公告)号：US10589597B2
公开(公告)日：2020-03-17
申请号：US15772267
申请日：2016-10-28
Applicant: DENSO CORPORATION
Inventor： Atsushi Yamada , Shin Nishida , Kota Sakamoto
Abstract: A vehicle air conditioner includes a refrigeration cycle unit, a heater core, a cool air bypass passage, an air volume ratio regulator, and an auxiliary heat exchanger. The heater core is disposed in a heating passage located downstream of an evaporator with respect to an airflow. The auxiliary heat exchanger is provided in the refrigeration cycle unit. The evaporator includes a cold energy storage. The cold energy storage stores cold energy when the compressor is in operation, and dissipate cold energy while the compressor stops. The auxiliary heat exchanger is located downstream of the evaporator and upstream of the heater core with respect to the airflow. The auxiliary heat exchanger changes enthalpy of refrigerant by heat exchange between the refrigerant and air having been cooled by the evaporator and to be heated by the heater core.
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Patent Agency Ranking
公开(公告)号：US11774149B2
公开(公告)日：2023-10-03
申请号：US17526751
申请日：2021-11-15
Applicant: DENSO CORPORATION
Inventor： Shin Nishida
CPC classification number: F25B47/02 , B60H1/00921 , B60H1/22 , B60H1/32 , B60H2001/00164 , B60H2001/00949
Abstract: An air conditioner includes a first inlet-side inside/outside air switching part, a first outlet-side outside/inside air switching part, a second inlet-side inside/outside air switching part and a second outlet-side inside/outside air switching part. In a dehumidifying heating mode, the first outlet-side inside/outside air switching part makes a switch to a ventilation path that guides air having passed through a first heat exchange part into a space to be air-conditioned, and the second inlet-side inside/outside air switching part makes a switch to a ventilation path that guides outside air to a second heat exchange part. In a defrosting mode, the second inlet-side inside/outside air switching part makes a switch to a ventilation path that guides inside air to the second heat exchange part, and a flow rate of refrigerant flowing through the second heat exchange part is reduced more than in the dehumidifying heating mode.
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公开(公告)号：US11073342B2
公开(公告)日：2021-07-27
申请号：US16305144
申请日：2017-05-10
Applicant: DENSO CORPORATION
Inventor： Atsushi Yamada , Shin Nishida , Takayuki Ota , Takashi Danjo
Abstract: A regenerative heat exchanger includes a refrigerant pipe, a regenerator, and an air passage fin. The air passage fin is disposed in an air passage defined outside of the refrigerant pipe and the regenerator, and is thermally connected with the regenerator directly or through the refrigerant pipe. At least one of the regenerator and the air passage fin is configured such that a thermal resistance between a part of a regenerative material located on an upstream side and air flowing through the air passage becomes larger than a thermal resistance between a part of the regenerative material located on a downstream side and air flowing through the air passage.
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公开(公告)号：US10976083B2
公开(公告)日：2021-04-13
申请号：US16191851
申请日：2018-11-15
Applicant: DENSO CORPORATION
Inventor： Atsushi Yamada , Shin Nishida , Takayuki Ota , Takashi Danjo
Abstract: A cold energy storage evaporator is used in a vehicle refrigeration cycle device configured to cool a vehicle compartment. The cold energy storage evaporator includes a refrigerant tube through which a refrigerant flows, and a cold energy storage member that is in close contact with the refrigerant tube, the cold energy container accommodating therein a cold energy storage member configured to freeze due to heat absorption by the refrigerant. A melting point of the cold energy storage member is higher than 11 degrees Celsius.
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公开(公告)号：US10377934B2
公开(公告)日：2019-08-13
申请号：US15671724
申请日：2017-08-08
Applicant: AGC Inc. , DENSO CORPORATION
Inventor： Masato Fukushima , Satoshi Kawaguchi , Katsuya Ueno , Shin Nishida
Abstract: There are provided an air-conditioner working fluid for electric vehicle providing sufficient cycle performance in practical use in an electric vehicle, in particular, sufficient cycle performance also in the heating time, while suppressing influence on global warming, and usable without greatly changing an air-conditioner device for a conventional working fluid, for example, HFC-134a or HFO-1234yf, and an air-conditioner working fluid composition for electric vehicle containing the same. The air-conditioner working fluid for electric vehicle contains trifluoroethylene, difluoromethane and 1,3,3,3-tetrafluoropropene, wherein a percentage of a total amount of trifluoroethylene, difluoromethane and 1,3,3,3-tetrafluoropropene with respect to a total amount of the working fluid is more than 90 mass % and 100 mass % or less.
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公开(公告)号：US20150168047A1
公开(公告)日：2015-06-18
申请号：US14407844
申请日：2013-05-13
Applicant: DENSO CORPORATION
Inventor： Takashi Danjyo , Atsushi Yamada , Seiji Inoue , Shin Nishida
IPC: F25D17/00
CPC classification number: F25D17/00 , F25B39/022 , F25B2400/24 , F28D1/05383 , F28D20/026 , F28D2020/0013 , F28D2021/0071 , Y02E60/145
Abstract: A cold storage heat exchanger for exchanging heat with air flowing therearound includes a refrigerant passage in which refrigerant flows, and a cold storage container that accommodates therein cold storage materials which exchanges heat with the refrigerant flowing through the refrigerant passage and retains the amount of heat from the refrigerant. The cold storage materials having different melting points are accommodated in the cold storage container.
Abstract translation: 用于与其周围流动的空气进行热交换的冷藏热交换器包括制冷剂流过的制冷剂通道，以及容纳有冷却剂的冷藏容器，其与流过制冷剂通道的制冷剂交换热量，并且保持来自 制冷剂。 具有不同熔点的冷藏材料容纳在冷藏容器中。
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