-
Patent Agency Ranking
公开(公告)号：US10889163B2
公开(公告)日：2021-01-12
申请号：US16071917
申请日：2017-01-20
Applicant: DENSO CORPORATION
Inventor： Kazuhiro Tada
Abstract: A heat pump system includes a heat pump cycle, a heat medium circulation circuit, and a refrigeration cycle device. The refrigeration cycle device is configured to perform a defrosting operation when a frost formation determiner determines that frost is formed. A throttle opening degree controller is configured to increase an opening degree in the defrosting operation. A pumping capacity controller is configured to increase a pumping capacity in the defrosting operation with increase of a required heating capacity required for heating a heating target fluid, the pumping capacity controller increasing the pumping capacity such that heat of refrigerant discharged from a compressor is transferred to heat medium in a first heat exchanger within a range in which a temperature of the refrigerant flowing into an outside heat exchanger is capable of melting the frost formed on the outside heat exchanger.
-
公开(公告)号：US11279828B2
公开(公告)日：2022-03-22
申请号：US16640685
申请日：2018-07-12
Applicant: DENSO CORPORATION , SHINSHU UNIVERSITY
Inventor： Kazuhiro Tada , Haruhisa Shibata , Ryo Miyahara , Hisayoshi Oshima , Toru Noguchi
Abstract: A silicone rubber composite material includes silicone rubber, first carbon nanotubes having an average diameter of not more than 30 nm, and second carbon nanotubes having an average diameter of more than 30 nm and not more than 1000 nm. Per 100 parts by weight of the silicone rubber, 2.5 to 10 parts by weight of the first carbon nanotubes and 5 to 15 parts by weight of the second carbon nanotubes are included.
-
公开(公告)号：US10533786B2
公开(公告)日：2020-01-14
申请号：US15823758
申请日：2017-11-28
Applicant: DENSO CORPORATION
Inventor： Kazuhiro Tada
Abstract: A refrigerating cycle apparatus includes: a compressor that compresses and discharges refrigerant; a radiator that makes the refrigerant discharged out of the compressor to radiate heat; a pressure reducing device that decompresses the refrigerant flowing out of the radiator; an evaporator that evaporates the refrigerant decompressed by the pressure reducing device; and a decompression control part that controls operation of the pressure reducing device. The decompression control part controls the operation of the pressure reducing device in a manner that a physical quantity which has correlation with a pressure of the refrigerant in the evaporator approaches a predetermined defrosting standard value when a time-priority defrosting mode is set.
-
公开(公告)号：US12038207B2
公开(公告)日：2024-07-16
申请号：US17191487
申请日：2021-03-03
Applicant: DENSO CORPORATION
Inventor： Kazuhiro Tada , Kengo Sugimura , Hiroyuki Kobayashi , Yuichi Kami , Satoshi Ito
Abstract: The refrigeration cycle device includes a compressor, an outside heat exchanger, a cooling pressure reducing unit, an evaporator, a branch portion, a cool down pressure reducing unit, a temperature adjusting unit, a merging portion, a bypass passage, and a first on-off valve. The temperature adjusting unit includes a temperature adjusting heat exchange unit and adjusts a temperature of a temperature adjustment target object. During a cooling and cool down mode, the outside heat exchanger functions as a radiator, and the evaporator and the temperature adjusting heat exchange unit function as heat absorbers. During a target object warm up mode, the refrigerant discharged from the compressor is guided to the temperature adjusting heat exchange unit via the bypass passage, and the heat of the discharged refrigerant is used as a heat source for heating the temperature adjustment target object.
-
公开(公告)号：US12151538B2
公开(公告)日：2024-11-26
申请号：US17894581
申请日：2022-08-24
Applicant: DENSO CORPORATION
Inventor： Kazuhiro Tada , Yuuichi Kami , Zhaoliang Xu , Atsushi Inaba
Abstract: A vehicle air conditioner includes a compressor, a heating unit, an outside air heat exchanger, a wind speed regulation unit, and a controller. The controller includes a melting control unit, a dry control unit, and a dry completion determination unit. In a dry defrosting mode, the melting control unit performs melting-defrosting to melt frost adhering to the outside air heat exchanger. The dry control unit performs a dry defrosting in which at least one of the amount of heat in a predetermined range or a wind speed regulated in a predetermined range by the wind speed regulation unit is supplied to residual water adhering to the outside air heat exchanger, due to melting of frost in the melting-defrosting, to dry the residual water. The dry completion determination unit determines whether drying of the residual water in the outside air heat exchanger is completed, in the dry defrosting.
-
-
-
-
Search Results
5
records
(took 0.011 seconds)
