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公开(公告)号：US20200370451A1
公开(公告)日：2020-11-26
申请号：US16854955
申请日：2020-04-22
Applicant: DENSO CORPORATION
Inventor： Yoshiki KATO
IPC: F01L9/04
Abstract: When an EDU determines that a motor is in a control unstable state where the motor cannot be controlled to a target rotation speed due to a drive voltage output duty value being smaller than a threshold value, the EDU performs a control point shifting operation to shift a control point between a first control point, which is in the control unstable state, and a second control point, which is a control stable state outside the control unstable state. Thus, even when the motor is in a stepping rotation state, it is possible to control the target rotation speed regardless of influence of a cogging torque, and appropriately control the cam phase of the intake camshaft to a target phase when the engine is stopped.
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公开(公告)号：US20190198954A1
公开(公告)日：2019-06-27
申请号：US16293844
申请日：2019-03-06
Applicant: DENSO CORPORATION
Inventor： Koji MIURA , Yasumitsu OMI , Masayuki TAKEUCHI , Takeshi YOSHINORI , Takashi YAMANAKA , Yoshiki KATO
IPC: H01M10/6569 , B60K11/02 , F28D15/06 , H01M10/613 , H01M10/615 , H01M10/625 , H01M10/6556 , H01M10/6571 , H01M10/663
CPC classification number: H01M10/6569 , B60K11/02 , F28D15/02 , F28D15/06 , H01M10/613 , H01M10/615 , H01M10/625 , H01M10/633 , H01M10/643 , H01M10/647 , H01M10/6556 , H01M10/6571 , H01M10/663 , H01M10/667 , H01M2220/20
Abstract: A device temperature regulator is provided with a device heat exchanger that functions as an evaporator at the time of cooling a temperature regulation target device and that functions as a heat radiator at the time of warming up the temperature regulation target device, and a condenser that condenses a gaseous working fluid. The device temperature regulator is provided with a heater that heats the working fluid collecting in a device fluid circuit, and a liquid amount regulator that regulates a liquid amount of the working fluid collecting in the device heat exchanger. The device heat exchanger includes a heat exchange portion that exchanges heat with the temperature regulation target device. The liquid amount regulator regulates the liquid amount of the liquid working fluid collecting in the device heat exchanger.
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23.发明申请公开(公告)号：US20190193213A1
公开(公告)日：2019-06-27
申请号：US16293877
申请日：2019-03-06
Applicant: DENSO CORPORATION
Inventor： Yasumitsu OMI , Takashi YAMANAKA , Yoshiki KATO , Takeshi YOSHINORI , Masayuki TAKEUCHI , Koji MIURA
CPC classification number: B23P15/26 , B23P2700/09 , F25B1/00 , F28D15/02 , F28D15/0283 , H05K7/20
Abstract: A method for manufacturing a device temperature controller includes filling an inside of a circuit with working fluid by connecting a filling port of the circuit to a container that stores gas phase working fluid. The circuit constitutes a thermosiphon heat pipe and allows the working fluid to circulate in the circuit. In the filling, the working fluid inside the circuit is cooled by a cooling source. An inside temperature of the circuit is decreased to be lower than an inside temperature of the container, and thereby an inside pressure of the circuit is decreased to be lower than an inside pressure of the container.
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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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Patent Agency Ranking
公开(公告)号：US20190084375A1
公开(公告)日：2019-03-21
申请号：US16082375
申请日：2017-02-13
Applicant: DENSO CORPORATION
Inventor： Keigo SATO , Yoshiki KATO , Masayuki TAKEUCHI
Abstract: An air conditioner is provided with: a refrigeration cycle including a subcooling heat exchanger that subcools a refrigerant having heat-dissipated in a high-pressure side heat exchanger by exchanging heat with a heat medium; a blower that blows the air to an air passage in an air-conditioning casing; an air cooler disposed in the air passage to cool the air; a heater core disposed on an air flow downstream side of the air cooler in the air passage to heat the air cooled by the air cooler; an auxiliary air heater disposed on the air flow downstream side of the air cooler and on an air flow upstream side of the air heater in the air passage, to heat the air cooled by the air cooler by exchanging heat with the heat medium; and a flow-rate adjustment portion configured to adjust a flow rate of the heat medium circulating between the subcooling heat exchanger and the auxiliary air heater.
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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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公开(公告)号：US20220009309A1
公开(公告)日：2022-01-13
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
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.
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公开(公告)号：US20210291626A1
公开(公告)日：2021-09-23
申请号：US17343279
申请日：2021-06-09
Applicant: DENSO CORPORATION
Inventor： Naoya MAKIMOTO , Yoshiki KATO
Abstract: A refrigeration cycle device includes a high-temperature heating medium regulator and a controller. The high-temperature heating medium regulator regulates a high-temperature heating medium flow ratio between the flow rate of high-temperature heating medium flowing in an air heater and the flow rate of high-temperature heating medium flowing in a radiator. The controller controls the high-temperature heating medium regulator to regulate the high-temperature heating medium flow ratio such that excess heat is radiated to air outside the cabin by the radiator, of the heat radiated from the refrigerant to the high-temperature heating medium by a high-pressure-side heat exchanger, with respect to heat required for heating air blown into a cabin by the air heater to have a target outlet temperature.
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公开(公告)号：US20210280925A1
公开(公告)日：2021-09-09
申请号：US16330440
申请日：2017-08-02
Applicant: DENSO CORPORATION
Inventor： Takeshi YOSHINORI , Takashi YAMANAKA , Yoshiki KATO , Masayuki TAKEUCHI , Koji MIURA , Yasumitsu OMI
IPC: H01M10/625 , H01M10/63 , H01M10/613 , H01M10/615 , H01M10/6564 , H01M10/6568
Abstract: In a device temperature regulator, an evaporator cools a target device by a latent heat of evaporation of a working fluid that absorbs heat from the target device and is evaporated. A first condenser includes a first heat exchange passage that condenses the working fluid evaporated in the evaporator by a heat exchange with an outside first medium. A second condenser includes a second heat exchange passage that condenses the working fluid evaporated in the evaporator by a heat exchange with an outside second medium. A gas-phase passage causes the working fluid evaporated in the evaporator to flow to the first condenser and the second condenser. Furthermore, a first liquid-phase passage causes the working fluid condensed in the first condenser to flow to the evaporator, and a second liquid-phase passage causes the working fluid condensed in the second condenser to flow to the evaporator.
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