公开(公告)号：US20230031520A1

公开(公告)日：2023-02-02

申请号：US17962941

申请日：2022-10-10

Applicant: DENSO CORPORATION

Inventor： Tomoyuki NOMURA ,  Syuichi MIZUNO ,  Hiroshi OSHITANI ,  Takeshi WAKISAKA

IPC: B60H1/32 ,  B60H1/00

Abstract: In a vehicle air conditioner, a controller is configured (i) to set a target cooling temperature of air cooled by a cooling heat exchanger, (ii) to control an operation of a compressor based on a cooling temperature and the target cooling temperature of the cooling heat exchanger, and (iii) to determine a traveling state of the vehicle. The controller is configured to set a normal target temperature as the target cooling temperature when the vehicle is traveling with a normal condition, and to set a modified target temperature higher than the normal target temperature as the target cooling temperature when the vehicle starts decelerating. In addition, the controller is configured to cause the compressor to stop operating when the vehicle starts decelerating, and to cause the compressor to restart operating when the cooling temperature detected by a temperature sensor is equal to or higher than the modified target temperature.

公开(公告)号：US20170059215A1

公开(公告)日：2017-03-02

申请号：US15251018

申请日：2016-08-30

Applicant: DENSO CORPORATION

Inventor： Naoki WATANABE ,  Shigeo NOMURA ,  Akito TORII ,  Tsuyoshi MORIMOTO ,  Takayuki SUGIURA ,  Tomoyuki NOMURA ,  Yasunori NIIYAMA

IPC: F25B21/00 ,  F25B49/00 ,  F25B30/00

CPC classification number: F25B21/00 ,  F25B2321/0021 ,  Y02B30/66

Abstract: A controller is configured to, based on a characteristic information of thermal output with respect to a temperature difference between a hot end and a cold end of a working chamber, changes at least one of a flow rate of a heating target fluid in a high temperature heat exchanger and a flow rate of a cooling target fluid in a low temperature heat exchanger. At least one of the flow rate of the heating target fluid in the high temperature heat exchanger and the flow rate of the cooling target fluid in the low temperature heat exchanger is adjusted such that the temperature difference between the hot and cold ends changes in a direction that increases thermal output.

Abstract translation: 控制器被配置为基于关于工作室的热端和冷端之间的温度差的热输出的特性信息，改变加热目标流体在高温下的流量中的至少一个 热交换器和冷却目标流体在低温热交换器中的流量。 调节高温热交换器中的加热对象流体的流量和低温热交换器中的冷却对象流体的流量中的至少一个，使得热端和冷端之间的温度差在方向 这增加了热输出。

公开(公告)号：US20240083216A1

公开(公告)日：2024-03-14

申请号：US18510782

申请日：2023-11-16

Applicant: DENSO CORPORATION

Inventor： Tomoyuki NOMURA

IPC: B60H1/00 ,  B60H1/22

CPC classification number: B60H1/00878 ,  B60H1/22 ,  B60H2001/00961

Abstract: In a vehicle air conditioner with a refrigeration cycle, a controller includes a compression control unit and a decompression control unit, which perform control when a condensation heat defrosting operation and a heating operation of the space to be air conditioned are performed in parallel. The compression control unit achieves any one of a temperature or a pressure of a refrigerant required in a heating heat exchanger, or a temperature or a pressure of the refrigerant required in an outside air heat exchanger by operation control of a compressor. The decompression control unit achieves the other one of the temperature or the pressure of the refrigerant required in the heating heat exchanger, or the temperature or the pressure of the refrigerant required in the outside air heat exchanger by operation control of the first expansion valve.

公开(公告)号：US20200318865A1

公开(公告)日：2020-10-08

申请号：US16303844

申请日：2017-04-25

Applicant: DENSO CORPORATION

Inventor： Yasunori NIIYAMA ,  Kazuki IWAYA ,  Akito TORII ,  Tomoyuki NOMURA ,  Shunji ITOU

IPC: F25B21/00

Abstract: A thermomagnetic cycle device includes: a magneto-caloric element; a magnetic field modulation device that modulates an external magnetic field applied to the magneto-caloric element; a heat transport device that generates a both-way flow of heat transport medium; a phase controller that adjusts a phase difference between a magnetic field phase of change in the external magnetic field generated by the magnetic field modulation device and a flow phase of the both-way flow generated by the heat transport device; and a control device that controls the phase controller. The control device includes: a phase acquisition part that acquires the flow phase of the both-way flow of the heat transport medium or a reaction phase represented by change in heat emitted or absorbed by the magneto-caloric element; and a control part that controls the phase controller based on the flow phase or the reaction phase.

公开(公告)号：US20250115094A1

公开(公告)日：2025-04-10

申请号：US18986615

申请日：2024-12-18

Applicant: DENSO CORPORATION

Inventor： Tomoyuki NOMURA ,  Yuichi KAMI

IPC: B60H1/00

Abstract: A heat pump cycle apparatus includes a compressor, an upstream branch part, a heating unit, an outside air heat exchanger, an upstream decompression unit, a downstream decompression unit, a bypass passage, and a bypass-side flow rate adjusting unit. In a heating mode of heating a heating target, a refrigerant decompressed in the upstream decompression unit flows into the outside air heat exchanger, and the refrigerant is caused to absorb heat of outside air in the outside air heat exchanger. In a defrosting mode of removing frost on the outside air heat exchanger, one refrigerant branched at the upstream branch part is caused to flow into the outside air heat exchanger to dissipate heat, and the refrigerant decompressed at the downstream decompression unit and the refrigerant flowing out of the bypass-side flow rate adjusting unit are mixed and sucked into the compressor.

公开(公告)号：US20180201088A1

公开(公告)日：2018-07-19

申请号：US15743615

申请日：2016-07-22

Applicant: DENSO CORPORATION

Inventor： Tomoyuki NOMURA ,  Mikiharu KUWAHARA

IPC: B60H1/00 ,  F24F11/89 ,  F25B47/02 ,  F25B6/04

Abstract: An air conditioning device has a blower, a compressor, a radiator, a decompressor, a heat absorber, and a controller. The compressor compresses and discharges a refrigerant. The radiator dissipates a heat of the refrigerant to the air thereby heating the air. The decompressor decompresses the refrigerant after the heat of the refrigerant is dissipated in the radiator. The refrigerant decompressed in the decompressor absorbs heat from outside air in the heat absorber. The controller determines whether the heat absorber is in a frosted state in which a frost is formed on the heat absorber or whether the heat absorber is in an estimated frosted state in which a frost is possibly formed on the heat absorber. The controller performs a frost delay control to delay a formation of the frost when the controller determines that the heat absorber is in the frosted state or the estimated frosted state.