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公开(公告)号：US10723199B2
公开(公告)日：2020-07-28
申请号：US15763503
申请日：2016-09-06
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshiki Kato , Masayuki Takeuchi , Keigo Sato , Koji Miura , Norihiko Enomoto , Kengo Sugimura , Ariel Marasigan , Ikuo Ozawa , Nobuharu Kakehashi , Yoshikazu Shinpo , Yoichi Onishi , Toshio Murata
Abstract: A vehicular heat management device includes a first heat source, a second heat source, a heater core, a first heat medium pathway, a second heat medium pathway, a heater core pathway, a switching portion, and a control unit. The first heat source is provided in the first heat medium pathway, and the second heat source is provided in the second heat medium pathway. The heater core is provided in the heater core pathway. The switching portion switches between flowing connection and flowing disconnection. The control unit performs at least one of a switching control and a second heat source control when a temperature of the heat medium of the heater core pathway is at or above a predetermined temperature. In the switching control, the switching portion connects the second heat medium pathway to the heater core pathway. In the second heat source control, the second heat source generates heat.
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公开(公告)号：US10562376B2
公开(公告)日：2020-02-18
申请号：US16060083
申请日：2016-10-06
Applicant: DENSO CORPORATION
Inventor： Koji Miura , Yoshiki Kato , Kengo Sugimura
Abstract: A refrigeration cycle device includes: a high-pressure side heat exchanger; a low-pressure side heat exchanger; a vehicle-mounted device that supplies heat to the heat medium; a heat-medium air heat exchanger that exchanges heat between the heat medium and air; a switching portion that switches between a state in which the heat medium circulates through the high-pressure side heat exchanger and a state in which the heat medium circulates through the low-pressure side heat exchanger with respect to each of the vehicle-mounted device and the heat-medium air heat exchanger; and a controller that drives the compressor, while controlling an operation of the switching portion to switch to a defrosting mode in which the heat medium circulates between the low-pressure side heat exchanger and the vehicle-mounted device, and the heat medium circulates between the high-pressure side heat exchanger and the heat-medium air heat exchanger, when defrosting of the heat-medium air heat exchanger is necessary.
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公开(公告)号：US10400662B2
公开(公告)日：2019-09-03
申请号：US15763850
申请日：2016-09-06
Applicant: DENSO CORPORATION , TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Norihiko Enomoto , Yoshiki Kato , Masayuki Takeuchi , Koji Miura , Keigo Sato , Kengo Sugimura , Nobuharu Kakehashi , Ikuo Ozawa , Ariel Marasigan , Yoshikazu Shinpo , Yoichi Onishi , Toshio Murata
IPC: F01P7/16 , F01P3/20 , F02M26/23 , F01N5/02 , F01P3/18 , F01P5/10 , F01P11/02 , F01P5/12 , F01P7/14 , F02G5/02
Abstract: A vehicular heat management device includes a first heat source, a second heat source, a first heat generator, a second heat generator, a heat generator pathway, a first heat source pathway, a second heat source pathway, and a switching portion. The first heat source and the second heat source heat a heat medium. The first heat generator generates heat according to operation. The second heat generator generates heat according to operation. The first heat generator and the second heat generator are provided in the heat generator pathway. The first heat generator is provided in the first heat generator pathway. The second heat generator is provided in the second heat generator pathway. The switching portion switches between a condition where the heat generator pathway is in flowing communication with the first heat generator pathway and a condition where the heat generator pathway is in flowing communication with the second heat generator pathway.
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公开(公告)号：US10371420B2
公开(公告)日：2019-08-06
申请号：US14907836
申请日：2014-07-15
Applicant: DENSO CORPORATION
Inventor： Yoshiki Katoh , Masamichi Makihara , Kazutoshi Kuwayama , Norihiko Enomoto , Kengo Sugimura
IPC: B60H1/00 , B60H1/32 , F25B25/00 , F25B30/02 , F25B41/00 , F25B49/02 , H01M10/625 , H01M10/663
Abstract: An air conditioning device for a vehicle having a compressor that supplies a high-pressure refrigerant, an air heating heat exchanger heating air that is to be blown into a vehicle cabin, a pressure reduction part expanding and decompressing the high-pressure refrigerant so as to supply an intermediate-pressure refrigerant and a low-pressure refrigerant, a first low-pressure side heat exchanger exchanging heat between the intermediate-pressure refrigerant and a heating medium other than the air, a second low-pressure side heat exchanger cooling the heating medium by exchanging heat between the low-pressure refrigerant and the heating medium, a first heating medium circuit through which the heating medium cooled in the second low-pressure side heat exchanger circulates, and a heating medium-air heat exchanger.
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公开(公告)号：US09657861B2
公开(公告)日：2017-05-23
申请号：US14391588
申请日：2013-03-14
Applicant: DENSO CORPORATION
Inventor： Norihiko Enomoto , Michio Nishikawa , Nobuharu Kakehashi , Kengo Sugimura , Yoshiki Katoh
CPC classification number: F16K27/003 , F16K11/165 , F16K11/22 , F16K31/04 , F16K31/041 , F16K31/523 , F16K31/53 , F16K31/535 , Y10T137/87249
Abstract: A flow passage switching unit includes side-by-side arranged rotary valve parts. The valve part includes a casing, side walls, a peripheral wall, first fluid ports, a second fluid port, a rotary shaft, and a valving element. A flow passage, through which the first fluid ports and the second fluid port selectively communicate, is formed by rotation of the valving element. The unit includes a driving mechanism driving each valving element by its corresponding predetermined rotation angle. The driving mechanism includes one driving source, and a motive power transmission member transmitting rotation motive power of the driving source respectively to the valve parts. Motive power of the driving source is transmitted to each rotary shaft of the valve parts to drive each valving element to a position, which position of the valving element relative to the first and second fluid ports is different from one another among the valve parts.
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Patent Agency Ranking
公开(公告)号：US11525611B2
公开(公告)日：2022-12-13
申请号：US17110641
申请日：2020-12-03
Applicant: DENSO CORPORATION
Inventor： Kengo Sugimura , Satoshi Ito , Yuichi Kami , Hiroyuki Kobayashi
Abstract: A refrigerant cycle device includes a compressor, a radiator, a first expansion valve, a second expansion valve, a first evaporator, a second evaporator, and a controller. The controller is configured to switch between a first evaporator priority control and a second evaporator priority control. During the first evaporator priority control, the controller controls a throttle opening of the second expansion valve based on at least one of a temperature of a first evaporator, a temperature of a refrigerant flowing through the first evaporator, and a temperature of an air having exchanged heat in the first evaporator. During the second evaporator priority mode, the controller controls the throttle opening based on a refrigerant state of the second evaporator. When the at least one of the temperatures is equal to or greater than a switching temperature, the second priority mode is switched to the first priority mode.
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公开(公告)号：US11506404B2
公开(公告)日：2022-11-22
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：US11378295B2
公开(公告)日：2022-07-05
申请号：US17111882
申请日：2020-12-04
Applicant: DENSO CORPORATION
Inventor： Yuichi Kami , Kengo Sugimura , Mitsuo Ooura
IPC: F24F11/46 , F24F11/64 , F24F11/67 , F24F11/89 , G05B19/042 , F24F140/60 , F24F140/50 , F24F130/10 , F24F110/10 , F24F110/12 , F24F140/20
Abstract: An air conditioner includes a heat medium circuit, a refrigerant cycle device, a discharge capacity controlling section, a heat generation amount controlling section, a target temperature determining section, and an upper limit determining section. The heat medium circuit includes a heating heat exchanger and an electric heater. The refrigerant cycle device exchanges heat between a heat medium in the heat medium circuit and a refrigerant discharged from an electric compressor. During a heater priority mode, the rotational speed of the compressor is increased to reach an upper limit and a heating amount of the heater is increased as a temperature difference increases. During a compressor priority mode, the heating amount of the heater is decreased and the rotational speed is increased to compensate for a decreasing amount.
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公开(公告)号：US10266035B2
公开(公告)日：2019-04-23
申请号：US14903291
申请日：2014-06-19
Applicant: DENSO CORPORATION
Inventor： Yoshiki Katoh , Kazutoshi Kuwayama , Masamichi Makihara , Norihiko Enomoto , Kengo Sugimura
Abstract: A vehicle air-conditioner has a casing, a first heat exchanger, and a second heat exchanger. The casing forms an air passage through which air flows toward inside of a vehicle cabin. The first heat exchanger is housed in the casing and performs a sensible heat exchange between the air flowing in the air passage and a heating medium. The second heat exchanger is housed in the casing and performs a sensible heat exchange between the heating medium and air that has exchanged sensible heat in the first heat exchanger. The first heat exchanger and the second heat exchanger respectively have a plurality of tubes through which the heating medium flows. A longitudinal direction of the plurality of tubes of the first heat exchanger and a longitudinal direction of the plurality of tubes of the second heat exchanger are the same direction as each other.
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公开(公告)号：US10220681B2
公开(公告)日：2019-03-05
申请号：US14907581
申请日：2014-07-22
Applicant: DENSO CORPORATION
Inventor： Yoshiki Katoh , Masamichi Makihara , Norihiko Enomoto , Kazutoshi Kuwayama , Kengo Sugimura
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.
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