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公开(公告)号：US11833887B2
公开(公告)日：2023-12-05
申请号：US17354591
申请日：2021-06-22
Applicant: DENSO CORPORATION
Inventor： Hiroaki Kawano , Yoshiki Kato , Masamichi Makihara , Takahiro Maeda , Kuniyoshi Tanioka , Toru Okamura , Naoya Makimoto
CPC classification number: B60H1/034 , B60H1/323 , B60H1/3227
Abstract: A vehicular air conditioner includes a refrigeration cycle system, a high-temperature heat medium circuit, and a low-temperature heat medium circuit. The high-temperature heat medium circuit includes an air-heat medium heat exchanger, a heater core, a branching portion, a common passage, a flow rate adjuster, and an auxiliary heat source. The air-heat medium heat exchanger exchanges heat between the heat medium and an outside air. The heater core is arranged parallel to the air-heat medium heat exchanger and causes the heat medium to transfer heat to a ventilation air. The branching portion divides a flow of the heat medium into a flow toward the air-heat medium heat exchanger and a flow toward the heater core. The auxiliary heat source is arranged in the common passage at a position upstream of the branching portion.
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Patent Agency Ranking
公开(公告)号：US11787258B2
公开(公告)日：2023-10-17
申请号：US16799467
申请日：2020-02-24
Applicant: DENSO CORPORATION
Inventor： Naoya Makimoto , Yoshiki Kato
CPC classification number: B60H1/00007 , B60H1/00885 , B60H1/3227 , B60H1/32281 , B60H2001/00928 , B60H2001/00949 , B60H2001/325 , B60H2001/3263 , B60H2001/3283
Abstract: In a refrigeration cycle device, in an operation mode in which a refrigerant does not flows into a cooling evaporator, a throttle opening degree characteristic of a heat absorption valve disposed upstream of a heat absorption evaporator is set to cause the refrigerant on the outlet side of the heat absorption evaporator to be in a gas-liquid two-phase state.
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公开(公告)号：US11448428B2
公开(公告)日：2022-09-20
申请号：US16749723
申请日：2020-01-22
Applicant: DENSO CORPORATION
Inventor： Yoshiki Kato
Abstract: A refrigeration cycle device includes a compressor, a heater device, a high-stage side decompressor, a gas-liquid separator, a refrigerant branch portion, a first decompressor, a first evaporator, a second decompressor, and a second evaporator. The compressor has an intermediate pressure port through which an intermediate-pressure refrigerant flows into the compressor. The gas-liquid separator is configured to separate the intermediate-pressure refrigerant into a gas refrigerant and a liquid refrigerant. The refrigerant branch portion is configured to divide a flow of the liquid refrigerant separated by the gas-liquid separator. In a cooling mode for cooling a heat exchange target fluid, a refrigerant circuit is switched such that a low-pressure refrigerant flows from the branch portion to the first evaporator. In a heating mode for heating the heat exchange target fluid, the refrigerant circuit is switched such that the low-pressure refrigerant flows from the branch portion to the second evaporator.
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公开(公告)号：US11408615B2
公开(公告)日：2022-08-09
申请号：US16749745
申请日：2020-01-22
Applicant: DENSO CORPORATION
Inventor： Yoshiki Kato
Abstract: A refrigeration cycle device includes a compressor, a heating radiator, a heat medium radiator, a decompressor, an evaporator, and a radiation amount adjuster. The heating radiator is configured to allow a high-pressure refrigerant to release heat to a heat exchange target fluid. The heat medium radiator is configured to allow the high-pressure refrigerant to release heat to a high-temperature side heat medium. The radiation amount adjuster is configured to adjust heat radiation amount radiated from the high-pressure refrigerant to the heat exchange target fluid at the heating radiator. In a heating mode, the radiation amount adjuster is configured to adjust the heat radiation amount at the heating radiator to be larger than a heat radiation amount at the heat medium radiator. In a cooling mode, the radiation amount adjuster is configured to adjust the heat radiation amount at the heating radiator to be lower than that in the heating mode.
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公开(公告)号：US11299014B2
公开(公告)日：2022-04-12
申请号：US16808179
申请日：2020-03-03
Applicant: DENSO CORPORATION
Inventor： Yoshiki Kato , Naoya Makimoto , Takuya Fuse
Abstract: A refrigeration cycle device includes a high-temperature side heat exchanger, an expansion valve for decompressing the refrigerant flowing out of the high-temperature side heat exchanger, a low-temperature side heat exchanger that exchanges heat between the refrigerant decompressed by the expansion valve and coolant, a high-temperature coolant circuit in which the coolant circulates to the high-temperature side heat exchanger, a low-temperature coolant circuit in which the coolant circulates to the low-temperature side heat exchanger, a battery and a low-temperature side radiator configured to exchange heat with the coolant in the low-temperature coolant circuit; and a heat transfer portion configured to transfer heat from the high-temperature coolant circuit to the low-temperature coolant circuit such that the coolant dissipates heat in the battery and the low-temperature side radiator.
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公开(公告)号：US11029098B2
公开(公告)日：2021-06-08
申请号：US16282477
申请日：2019-02-22
Applicant: DENSO CORPORATION
Inventor： Masayuki Takeuchi , Yasumitsu Omi , Takashi Yamanaka , Yoshiki Kato , Takeshi Yoshinori , Koji Miura
IPC: F28D15/06 , H01M10/6569 , H01M10/613 , H01M10/633 , H05K7/20 , H01M10/625 , H01M10/647 , H01M10/6556 , H01M10/652 , F28D15/02 , H01M10/63 , B60H1/00
Abstract: A device temperature regulator includes a forward passage in which a forward flow passage is formed to cause a working fluid to flow to a heat absorber from a heat radiator, and a backward passage in which a backward flow passage is formed to cause the working fluid to flow to the heat radiator from the heat absorber. In addition, the device temperature regulator includes a bubble generator, which generates a bubble in the working fluid collecting in the heat absorber and having a liquid phase, and a controller that causes the bubble generator to generate the bubble in a precondition is satisfied.
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