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公开(公告)号：US20170197490A1
公开(公告)日：2017-07-13
申请号：US15314117
申请日：2015-06-02
Applicant: DENSO CORPORATION
Inventor： Norihiko ENOMOTO , Yoshiki KATOH , Kengo SUGIMURA , Nobuharu KAKEHASHI
IPC: B60H1/00
CPC classification number: B60H1/00899 , B60H1/00342 , B60H1/004 , B60H1/00485 , B60H2001/00928 , B60H2001/00957 , F25B1/00 , F25B40/00 , F25B41/06
Abstract: A refrigeration cycle device includes: a low-temperature side pump that draws and discharges a low-temperature side heat medium; a compressor that draws, compresses, and discharges a refrigerant; a heat radiation device that dissipates heat from a high-pressure refrigerant discharged from the compressor; a decompression device that decompresses the high-pressure refrigerant having heat dissipated by the heat radiation device; an internal heat exchanger that exchanges heat between the high-pressure refrigerant flowing out of the heat radiation device and the low-pressure refrigerant flowing out of a heat-medium cooler; a low-pressure refrigerant temperature sensing portion that detects or senses a temperature in connection with a temperature of the low-pressure refrigerant having heat exchanged in the internal heat exchanger; and a superheat-degree control unit that controls a degree of superheat of the low-pressure refrigerant having heat exchanged in the internal heat exchanger, based on the temperature detected or sensed by the low-pressure refrigerant temperature sensing portion.
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公开(公告)号：US20160159204A1
公开(公告)日：2016-06-09
申请号：US14907581
申请日：2014-07-22
Applicant: DENSO CORPORATION
Inventor： Yoshiki KATOH , Masamichi MAKIHARA , Norihiko ENOMOTO , Kazutoshi KUWAYAMA , Kengo SUGIMURA
CPC classification number: B60H1/3211 , B60H2001/326 , B60H2001/3272 , F25B1/00 , F25B49/022 , F25B2600/0251
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.
Abstract translation: 一种用于车辆的制冷循环装置具有压缩机，第一泵，高压侧热交换器，加热介质 - 外部空气热交换器和控制器。 压缩机吸入和排出制冷剂。 第一个泵吸取和排出第一个加热介质。 高压侧热交换器通过在从压缩机排出的高压制冷剂与第一加热介质之间进行热交换来加热第一加热介质。 加热介质 - 外部空气热交换器在第一加热介质和外部空气之间交换热量。 控制器控制压缩机和第一泵的运行。 当制造压缩机的激活请求时，控制器启动第一个泵。 当确定或估计第一加热介质的温度低于或等于第一预定值时，控制器在启动第一泵之后激活压缩机。
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公开(公告)号：US20160075213A1
公开(公告)日：2016-03-17
申请号：US14784076
申请日：2014-04-14
Applicant: DENSO CORPORATION
Inventor： Kengo SUGIMURA , Nobuharu KAKEHASHI , Yoshiki KATOH , Michio NISHIKAWA , Norihiko ENOMOTO
IPC: B60H1/32
CPC classification number: B60H1/3204 , B60H1/00899 , B60H1/32284
Abstract: A vehicle heat management device applied to a refrigeration cycle includes a pump that suctions and discharges a heat medium, a heat medium cooler that exchanges heat between the heat medium discharged by the pump and low-pressure side refrigerant in the refrigeration cycle to evaporate the low-pressure side refrigerant and to cool the heat medium, a heat medium circulation device through which the heat medium whose heat is exchanged in the heat medium cooler flows and in which the heat medium absorbs heat by its sensible heat change, and a heat medium flow control part that increases a flow rate of the heat medium flowing through the heat medium circulation device when an amount of the heat absorbed by the heat medium in the heat medium circulation device is determined to be larger than a predetermined amount of heat.
Abstract translation: 应用于制冷循环的车辆用热管理装置包括吸引热介质的泵，将由泵排出的热介质与制冷循环中的低压侧制冷剂之间进行热交换的热介质冷却器蒸发掉 压力侧制冷剂并冷却热介质，热介质循环装置，热介质冷却器中的热交换的热介质通过该介质循环装置流动，其中热介质通过其显热换热而吸收热量，热介质流 当热介质循环装置中被热介质吸收的热量确定为大于预定的热量时，控制部件增加流过热介质循环装置的热介质的流量。
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公开(公告)号：US20240361050A1
公开(公告)日：2024-10-31
申请号：US18732258
申请日：2024-06-03
Applicant: DENSO CORPORATION
Inventor： Kengo SUGIMURA , Yuichi KAMI , Kota TAKEICHI
CPC classification number: F25B30/02 , F25B49/02 , F25B2400/04
Abstract: A heat pump cycle device includes a compressor, a branch portion, a heating unit, a heating-unit side decompression unit, a bypass passage, a bypass-side flow-rate regulating unit, a mixing portion, and a target temperature determination unit. When a regulating performance determination unit determines that a flow rate regulating performance of one of the heating-unit side decompression unit or the bypass-side flow-rate regulating unit is equal to or less than the reference regulating performance, a throttle opening of the other of the heating-unit side decompression unit or the bypass-side flow-rate regulating unit is set to be equal to or less than an upper limit opening.
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公开(公告)号：US20240219086A1
公开(公告)日：2024-07-04
申请号：US18602846
申请日：2024-03-12
Applicant: DENSO CORPORATION
Inventor： Kota TAKEICHI , Atsushi INABA , Yuichi KAMI , Kengo SUGIMURA , Daiki KATO
Abstract: A heat pump cycle device includes a compressor, a branching unit, a heating unit, a heating-unit-side depressurizing unit, a bypass passage, a bypass flow-rate adjusting unit, a mixing unit, and a target pressure difference determining unit. The target pressure difference determining unit determines a target pressure difference as a target value of a pressure difference determined by subtracting a suctioned refrigerant pressure from a discharge refrigerant pressure. An operation of at least one of the compressor, the heating-unit-side depressurizing unit, or the bypass flow-rate adjusting unit is controlled so that the pressure difference comes close to the target pressure difference.
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Patent Agency Ranking
公开(公告)号：US20210347224A1
公开(公告)日：2021-11-11
申请号：US17380774
申请日：2021-07-20
Applicant: DENSO CORPORATION
Inventor： Kengo SUGIMURA , Satoshi ITO , Satoshi SUZUKI , Kosuke SHIRATORI
Abstract: A refrigeration cycle device including a first pressure reducing valve, a first evaporator that exchanges heat between the refrigerant decompressed in the first pressure reducing valve and air, a second pressure reducing valve that is disposed in parallel with the first pressure reducing valve; a second evaporator in which the refrigerant decompressed in the second pressure reducing valve to absorbs heat from a battery; a third pressure reducing valve that reduces the pressure of the refrigerant evaporated in the second evaporator; and a controller configured to control opening degrees of the second pressure reducing valve and the third pressure reducing valve. The controller performs a limit control for controlling the opening degree of the second pressure reducing valve to an opening degree of smaller one of a battery cooling opening degree and an air cooling opening degree.
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公开(公告)号：US20210102716A1
公开(公告)日：2021-04-08
申请号：US17110058
申请日：2020-12-02
Applicant: DENSO CORPORATION
Inventor： Satoshi ITO , Kengo SUGIMURA , Yuichi KAMI , Hiroyuki KOBAYASHI
Abstract: A refrigeration cycle device includes a heating unit, an air-heating expansion valve, an outdoor heat exchanger, an air-cooling expansion valve, an indoor evaporator, and a cooler-unit expansion valve, a cooler unit, and a refrigerant circuit switching unit. In a heating series cooler-unit mode, refrigerant is circulated in order of the heating unit, the air-heating expansion valve, the outdoor heat exchanger, the cooler-unit expansion valve, and the cooler unit. In a heating parallel cooler-unit mode, refrigerant is circulated in order of the heating unit, the air-heating expansion valve, and the outdoor heat exchanger, and refrigerant is circulated in order of the heating unit, the cooler-unit expansion valve, and the cooler unit.
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公开(公告)号：US20190184790A1
公开(公告)日：2019-06-20
申请号：US16285269
申请日：2019-02-26
Applicant: DENSO CORPORATION
Inventor： Koji MIURA , Yoshiki KATO , Masayuki TAKEUCHI , Nobuyuki HASHIMURA , Keigo SATO , Norihiko ENOMOTO , Kengo SUGIMURA , Ariel MARASIGAN
CPC classification number: B60H1/00878 , B60H1/00278 , B60H1/004 , B60H1/3207
Abstract: A refrigeration cycle device has a compressor, a radiator, a decompressor, an evaporator, a heat medium cooling evaporator, a cooling target device, a detector, and a controller. The heat medium cooling evaporator cools a cooling heat medium by performing a heat exchange between the refrigerant decompressed in the decompressor and the cooling heat medium. The cooling heat medium cools the cooling target device. The detector detects a subcooling state of the cooling target device having a temperature lower than or equal to a reference temperature. Upon the detection of the subcooling state in the cooling target device by the detector, the controller increases the degree of superheat of the refrigerant flowing out of the heat medium cooling heat exchanger as compared to the degree of superheat of the refrigerant flowing out of the heat medium cooling heat exchanger when the detector does not detect the subcooling state.
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公开(公告)号：US20190154311A1
公开(公告)日：2019-05-23
申请号：US16256202
申请日：2019-01-24
Applicant: DENSO CORPORATION
Inventor： Koji MIURA , Yoshiki KATO , Masayuki TAKEUCHI , Nobuyuki HASHIMURA , Keigo SATO , Norihiko ENOMOTO , Kengo SUGIMURA , Ariel MARASIGAN
Abstract: A refrigeration cycle device includes a compressor, a condenser, a first decompressor, an outside heat exchanger, and an evaporator. A predetermined part of a refrigerant passage from the condenser to the first decompressor through which the refrigerant flows is a condenser outlet portion. A predetermined part of a refrigerant passage from the first decompressor to the outside heat exchanger through which the refrigerant flows is an outside heat exchanger inlet portion. A predetermined part of a refrigerant passage from the outside heat exchanger to the second decompressor through which the refrigerant flows is an outside heat exchanger outlet portion. A volume capacity of the condenser outlet portion is larger than a volume capacity of the outside heat exchanger inlet portion. According to the refrigeration cycle device, preferable coefficient of performance of cycle can be achieved in different operation modes.
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公开(公告)号：US20190030991A1
公开(公告)日：2019-01-31
申请号：US16073357
申请日：2017-01-20
Applicant: DENSO CORPORATION
Inventor： Norihiko ENOMOTO , Yoshiki KATO , Kengo SUGIMURA , Nobuyuki HASHIMURA , Koji MIURA , Keigo SATO , Ariel MARASIGAN
Abstract: A thermal management device includes a waste-heat supply device that supplies waste heat to a heat medium flowing through a second heat medium path portion, a heater core that exchanges heat between air and the heat medium, a switching valve that switches between a state in which the heat medium circulates between the heater core and a first heat medium path portion and a state in which the heat medium circulates between the heater core and the second heat medium path portion, an adjustment portion that adjusts a temperature of the heat medium in the first heat medium path portion, and a controller. The controller controls the adjustment portion such that the temperature of the heat medium in the first heat medium path portion is equal to or higher than a predetermined temperature when the switching valve circulates the heat medium between the heater core and the second heat medium path portion.
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