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公开(公告)号：US12202318B2
公开(公告)日：2025-01-21
申请号：US17974682
申请日：2022-10-27
Applicant: DENSO CORPORATION
Inventor： Kouji Miura , Yoshiki Katoh , Masamichi Makihara , Atsushi Yamada , Kenta Kayano , Hiroaki Kawano , Tooru Okamura , Naoya Makimoto
Abstract: An air conditioner for a vehicle includes a refrigeration cycle, a heating unit and a control unit. The refrigeration cycle includes an air-conditioning evaporator, a chilling evaporator, an air-conditioning side flow path, a detour flow path and an air-conditioning flow rate adjustment unit. The control unit includes a determination unit that determines whether a condensation condition is satisfied when a refrigerant is flowing through the chilling evaporator via the detour flow path in a state where an inflow of a refrigerant into the air-conditioning evaporator is prohibited. When the determination unit determines that the condensation condition is satisfied, the control unit controls the air-conditioning flow rate adjustment unit to allow an inflow of a refrigerant into the air-conditioning evaporator as a condensation suppression operation for suppressing condensation of a refrigerant in the air-conditioning evaporator.
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公开(公告)号：US10457117B2
公开(公告)日：2019-10-29
申请号：US15107149
申请日：2014-11-28
Applicant: DENSO CORPORATION
Inventor： Norihiko Enomoto , Nobuharu Kakehashi , Yoshiki Katoh , Kazutoshi Kuwayama , Masamichi Makihara
Abstract: An air conditioner for a vehicle including a pump that takes in and discharges a heat medium, a heat medium/air heat exchanger which regulates a temperature of ventilation air by conducting sensible-heat exchange between the ventilation air and the heat medium circulated by the pump, a heat transfer device having a passage through which the heat medium flows and conducts heat transfer with the heat medium, a compressor, a heat medium/refrigerant heat exchanger which regulates the temperature of the heat medium, and a controller which regulates a heat transfer amount with the heat medium in the heat transfer device or heat exchange capability of the heat medium/air heat exchanger such that a temperature of the ventilation air regulated by the heat medium/air heat exchanger approaches a target temperature.
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公开(公告)号：US10266035B2
公开(公告)日：2019-04-23
申请号：US14903291
申请日：2014-06-19
Applicant: DENSO CORPORATION
Inventor： Yoshiki Katoh , Kazutoshi Kuwayama , Masamichi Makihara , Norihiko Enomoto , Kengo Sugimura
Abstract: A vehicle air-conditioner has a casing, a first heat exchanger, and a second heat exchanger. The casing forms an air passage through which air flows toward inside of a vehicle cabin. The first heat exchanger is housed in the casing and performs a sensible heat exchange between the air flowing in the air passage and a heating medium. The second heat exchanger is housed in the casing and performs a sensible heat exchange between the heating medium and air that has exchanged sensible heat in the first heat exchanger. The first heat exchanger and the second heat exchanger respectively have a plurality of tubes through which the heating medium flows. A longitudinal direction of the plurality of tubes of the first heat exchanger and a longitudinal direction of the plurality of tubes of the second heat exchanger are the same direction as each other.
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公开(公告)号：US10220681B2
公开(公告)日：2019-03-05
申请号：US14907581
申请日：2014-07-22
Applicant: DENSO CORPORATION
Inventor： Yoshiki Katoh , Masamichi Makihara , Norihiko Enomoto , Kazutoshi Kuwayama , Kengo Sugimura
Abstract: A refrigeration cycle device for a vehicle has a compressor, a first pump, a high-pressure side heat exchanger, a heating medium-outside air heat exchanger, and a controller. The compressor draws and discharges a refrigerant. The first pump draws and discharges a first heating medium. The high-pressure side heat exchanger heats the first heating medium by exchanging heat between a high-pressure refrigerant discharged from the compressor and the first heating medium. The heating medium-outside air heat exchanger exchanges heat between the first heating medium and outside air. The controller controls operation of the compressor and the first pump. The controller activates the first pump when an activation request of the compressor is made. The controller activates the compressor, after activating the first pump, when it is determined or estimated that a temperature of the first heating medium is lower than or equal to a first predetermined value.
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公开(公告)号：US09625214B2
公开(公告)日：2017-04-18
申请号：US14360779
申请日：2012-11-28
Applicant: DENSO CORPORATION
Inventor： Yoshiki Katoh
CPC classification number: F28D1/05366 , B60H1/00328 , B60H1/00342 , F28D1/0435 , F28D1/05391 , F28F9/0214 , F28F9/0246 , F28F9/0278 , F28F2009/0287
Abstract: In a heat exchanger, a plate member of a tank portion includes a first fluid communication passage through which a first tank space communicates with first tubes, and a second fluid communication passage through which a second tank space communicates with second tubes. Either an upstream first tube group of the first tubes or a downstream first tube group of the first tubes, whichever is larger in a pressure loss of the first fluid, configures a higher pressure loss first tube group, and the other first tube group smaller in the pressure loss of the first fluid configures a lower pressure loss first tube group. A flow channel resistance between the higher pressure loss first tube group and the first tank space is smaller than a flow channel resistance between the lower pressure loss first tube group and the first tank space.
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Patent Agency Ranking
公开(公告)号：US09506683B2
公开(公告)日：2016-11-29
申请号：US14362359
申请日：2012-12-03
Applicant: DENSO CORPORATION
Inventor： Yoshiki Katoh
IPC: F25D21/06 , B60H1/00 , F28F9/26 , F28F19/00 , F28D1/04 , F28D1/053 , F28F1/12 , F28D1/02 , F25B39/00 , F25B47/00 , F28D21/00
CPC classification number: F25D21/06 , B60H1/00342 , B60H1/00921 , B60H2001/00928 , F25B39/00 , F25B47/00 , F28D1/0233 , F28D1/04 , F28D1/0408 , F28D1/05391 , F28D2021/008 , F28F1/12 , F28F1/128 , F28F9/26 , F28F19/006
Abstract: A heat exchanger includes a refrigerant tube through which a refrigerant for absorbing heat from air flows, and a defrosting medium tube through which a coolant for supplying heat for defrosting flows. Two fins disposed on both sides of the refrigerant tube include a protrusion protruding toward an upstream side of the flow of air with respect to the refrigerant tube. The protrusion is provided with a clearance that allows melt water generated in the defrosting to flow on the upstream side of the refrigerant tube. The refrigerant tubes and the defrosting medium tubes can be alternately arranged in the upstream line. The protrusion protrudes such that the air can be introduced into an air passage from the side portion of the protrusion even when an end facing the upstream side of the flow of the air is closed with the core of frost.
Abstract translation: 热交换器包括制冷剂管，用于从空气中吸收热的制冷剂通过该制冷剂管，以及除霜介质管，用于供除热的冷却剂用于除霜流动。 设置在制冷剂管的两侧的两个翅片包括相对于制冷剂管向空气流的上游侧突出的突起。 突起设置有允许在除霜中产生的熔融水在制冷剂管的上游侧流动的间隙。 制冷剂管和除霜介质管可以交替布置在上游管线中。 突起突出，使得即使当面对空气流的上游侧的一端与霜冻的核心闭合时，也可以从突起的侧部将空气引入空气通道。
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公开(公告)号：US20160288618A1
公开(公告)日：2016-10-06
申请号：US14903291
申请日：2014-06-19
Applicant: DENSO CORPORATION
Inventor： Yoshiki Katoh , Kazutoshi Kuwayama , Masamichi Makihara , Norihiko Enomoto , Kengo Sugimura
CPC classification number: B60H1/00921 , B60H1/00335 , B60H1/3205 , F28D1/05383
Abstract: A vehicle air-conditioner has a casing, a first heat exchanger, and a second heat exchanger. The casing forms an air passage through which air flows toward inside of a vehicle cabin. The first heat exchanger is housed in the casing and performs a sensible heat exchange between the air flowing in the air passage and a heating medium. The second heat exchanger is housed in the casing and performs a sensible heat exchange between the heating medium and air that has exchanged sensible heat in the first heat exchanger. The first heat exchanger and the second heat exchanger respectively have a plurality of tubes through which the heating medium flows. A longitudinal direction of the plurality of tubes of the first heat exchanger and a longitudinal direction of the plurality of tubes of the second heat exchanger are the same direction as each other.
Abstract translation: 车辆空调具有壳体，第一热交换器和第二热交换器。 壳体形成空气通道，空气通过该通道朝向车厢内部流动。 第一热交换器容纳在壳体中，并且在空气通道中流动的空气和加热介质之间进行显着的热交换。 第二热交换器容纳在壳体中，并且在第一热交换器中交换显热的加热介质和空气之间进行显热交换。 第一热交换器和第二热交换器分别具有多个管，加热介质通过该管流动。 第一热交换器的多个管的纵向方向和第二热交换器的多个管的长度方向彼此相同。
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公开(公告)号：US20150258875A1
公开(公告)日：2015-09-17
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
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.
Abstract translation: 一种用于车辆的热管理系统包括第一泵和第二泵，温度调节目标装置，热交换器，包括第一泵装置流路，第二泵装置流路和装置装置流路的多个流路，第一 用于允许多个流路彼此选择性地连通的切换部分，用于允许多个流动路径彼此选择性地连通的第二切换部分，以及用于在其中存储热介质的储存罐。 储存罐被配置成将储存的热介质的液面的压力设定到预定压力（例如，大气压），并且连接到多个流路的一个流路。
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公开(公告)号：US20150000327A1
公开(公告)日：2015-01-01
申请号：US14376277
申请日：2013-01-31
Applicant: DENSO CORPORATION
Inventor： Nobuharu Kakehashi , Yoshiki Katoh
CPC classification number: F25D17/02 , B60H1/004 , B60H1/143 , B60H1/32281 , B60K2001/003 , B60L2240/34 , B60L2240/545 , F01P2050/24 , F02B29/0443 , F02M26/28 , F28D9/0043 , F28D9/005 , F28D9/0093 , F28D2021/0031 , F28D2021/008 , F28D2021/0084 , F28D2021/0094 , F28F1/00 , F28F9/02 , F28F9/0246 , F28F9/26 , F28F27/02 , H01M10/613 , H01M10/625 , H01M10/6556 , Y02T10/146
Abstract: A heat exchanging portion and tank portions are formed by bonding plate members. The tank portion is provided with a refrigerant inlet allowing a refrigerant to flow into a refrigerant tank space, a refrigerant outlet allowing the refrigerant to flow from the refrigerant tank space, a heat medium inlet allowing a heat medium to flow into a heat medium tank space, and a heat medium outlet allowing the heat medium to flow from the heat medium tank space. At least one of the refrigerant inlet, the refrigerant outlet, the heat medium inlet, and the heat medium outlet is disposed between both ends of the tank portions in a tube stacking direction of refrigerant tubes and heat medium tubes.
Abstract translation: 通过接合板构件形成热交换部分和罐部分。 罐部设有允许制冷剂流入制冷剂罐空间的制冷剂入口，允许制冷剂从制冷剂罐空间流出的制冷剂出口，允许热介质流入热介质箱空间的热介质入口 以及允许热介质从热介质罐空间流动的热介质出口。 制冷剂入口，制冷剂出口，热介质入口和热介质出口中的至少一个在制冷剂管和热介质管的管堆叠方向上设置在罐部的两端之间。
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公开(公告)号：US12140353B2
公开(公告)日：2024-11-12
申请号：US17576030
申请日：2022-01-14
Applicant: DENSO CORPORATION
Inventor： Kouji Inagaki , Daiki Katou , Hiroaki Kawano , Yoshiki Katoh , Naoya Makimoto
Abstract: A refrigeration cycle device includes a compressor configured to compress and discharge a refrigerant containing oil, a refrigerant radiator configured to heat the ventilation air using the refrigerant discharged from the compressor as a heat source during a room interior heating, a refrigerant decompression unit configured to decompress the refrigerant having passed through the refrigerant radiator, an evaporator configured to evaporate the refrigerant and to function as a heat absorber during the room interior heating; and a controller configured to control the refrigerant decompression unit and to perform a fluctuation operation at least during the room interior heating. In the fluctuation operation, a throttle opening degree of the refrigerant decompression unit is changed such that a refrigerant state on a refrigerant outlet side of the evaporator is alternately changed to a superheated state having a superheat degree and a wet state containing the wet vapor.
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