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公开(公告)号：US20210053416A1
公开(公告)日：2021-02-25
申请号：US17080004
申请日：2020-10-26
申请人： DENSO CORPORATION
摘要： A vehicle cabin air conditioning system includes a cabin indoor air conditioner and an individual air conditioner configured to condition air in a target space inside a cabin. The individual air conditioner includes a blower, a heat generator, a supply port, and an exhaust port. The supply port supplies one of a cold air cooled with the heat generator and a warm air heated with the heat generator to the target space. The exhaust port provides the other of the cold air and the warm air to outside of the target space. The cabin indoor air conditioner includes a cabin blower, a temperature control unit, and a suction port through which air is sucked for the temperature control unit. An air flow path is provided to guide air sent from the exhaust port of the individual air conditioner to the suction port of the cabin indoor air conditioner.
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公开(公告)号：US20210039476A1
公开(公告)日：2021-02-11
申请号：US17080157
申请日：2020-10-26
申请人： DENSO CORPORATION
摘要： A vehicle cabin air conditioning system has an individual air conditioner for conditioning air in a target space in a cabin. The individual air conditioner has a blower, a suction port, a heat generator, and a supply port. The heat generator concurrently generates cold heat and warm heat inside the housing. At least one of the cold air cooled with the cold heat and the warm air heated with the warm heat is supplied from the supply port to the target space. The vehicle cabin air conditioning system has a thermal load reducing unit and a supply flow path. The thermal load reducing unit adjusts the temperature of air sucked from the suction port in order to reduce the thermal load in the heat generator. The supply flow path guides the air controlled in temperature by the thermal load reducing unit to the suction port.
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公开(公告)号：US20190383308A1
公开(公告)日：2019-12-19
申请号：US16557685
申请日：2019-08-30
申请人： DENSO CORPORATION
发明人： Yoichiro KAWAMOTO , Gota OGATA , Hiroshi OSHITANI , Ryu FUKUSHIMA , Teruyuki HOTTA , Tatsuhiro SUZUKI , Hang YUAN , Daisuke SAKURAI , Masahiro ITO , Hiroshi MAEDA
摘要： When an ejector having a variable nozzle and a variable throttle mechanism are integrated together as an ejector module, a nozzle-side central axis CL1 and a decompression-side driving mechanism have a twisted positional relationship, if the nozzle-side central axis CL1 is defined as a central axis of a nozzle-side driving mechanism in a displacement direction in which the nozzle-side driving mechanism of the ejector having the variable nozzle displaces a needle valve, and the decompression-side central axis CL2 is defined as a central axis of a decompression-side driving mechanism in a displacement direction in which the decompression-side driving mechanism of the variable throttle mechanism displaces a throttle valve. When viewed from the central axis direction of one of the nozzle-side central axis CL1 and the decompression-side central axis CL2, a driving portion corresponding to the one central axis is disposed to overlap with the other central axis.
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公开(公告)号：US20190111764A1
公开(公告)日：2019-04-18
申请号：US16218937
申请日：2018-12-13
申请人： DENSO CORPORATION
发明人： Hiroshi OSHITANI , Akane MUTO , Tatsuhiro SUZUKI , Teruyuki HOTTA
摘要： A refrigeration cycle device includes a compressor, a first branch portion, a radiator, a second branch portion, a first decompressor, a first evaporator, a second decompressor, a second evaporator, and an ejector. The first branch portion divides a flow of a refrigerant discharged from the compressor into one flow and an other flow. The radiator radiates heat of the refrigerant of the one flow. The second branch portion divides a flow of the refrigerant from the radiator into one flow and an other flow. The first decompressor decompresses the refrigerant of the one flow divided in the second branch portion. The second decompressor decompresses the refrigerant of the other flow divided in the second branch portion. A nozzle of the ejector decompresses and injects the refrigerant of the other flow divided in the first branch portion. The refrigerant suction port draws the refrigerant from the second evaporator.
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公开(公告)号：US20180087848A1
公开(公告)日：2018-03-29
申请号：US15544601
申请日：2016-01-21
申请人： DENSO CORPORATION
CPC分类号： F28F9/0246 , F25B1/00 , F25B5/04 , F25B39/02 , F25B39/022 , F25B41/00 , F25B2341/0011 , F25B2400/0407 , F25B2500/18 , F25B2600/2501 , F28D1/03 , F28D1/0341 , F28D9/0043 , F28F3/08 , F28F9/0263 , F28F9/0265
摘要： An ejector-integrated heat exchanger includes multiple tube forming members. The tube forming member includes an ejector, a flow-out side refrigerant passage, and a suction side refrigerant passage. The ejector includes a nozzle portion decompressing a refrigerant, a refrigerant suction port, and a pressure increasing portion in which the refrigerant drawn from the refrigerant suction port and the refrigerant jetted from the nozzle portion are mixed, a pressure of the mixed refrigerant being increased in the pressure increasing portion. In the flow-out side refrigerant passage, the refrigerant flowing out of the pressure increasing portion performs heat exchange while flowing. In the suction side refrigerant passage, the refrigerant that is to be drawn through the refrigerant suction port performs heat exchange while flowing. Multiple tube forming members are arranged such that the refrigerant flows in parallel with each other.
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公开(公告)号：US20210260967A1
公开(公告)日：2021-08-26
申请号：US17318448
申请日：2021-05-12
申请人： DENSO CORPORATION
IPC分类号： B60H1/32
摘要： A compact air conditioner includes a compressor, a condenser, a decompressor, an evaporator, a blower, an air conditioner case, and a controller. The air conditioner case defines a cool air chamber and a warm air chamber and is configured to direct a condensed water generated in the evaporator toward the warm air chamber. When an amount of the condensed water in the air conditioner case is greater than a predetermined amount, the controller is configured to execute at least one of a first control to decrease a flow rate of an air sent to the condenser by the blower or a second control to narrow an area of a front surface of the condenser, and at least one of a third control to increase a rotational speed of the compressor or a fourth control to reduce an opening degree of a valve of the decompressor.
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公开(公告)号：US20200086775A1
公开(公告)日：2020-03-19
申请号：US16692693
申请日：2019-11-22
申请人： DENSO CORPORATION
发明人： Teruyuki HOTTA , Tatsuhiro SUZUKI , Shigeru KAWANO
摘要： A seat air-conditioning system includes a plurality of seat air-conditioning devices respectively disposed for seats. Each of the seat air-conditioning devices achieves comfortable air conditioning in a vehicle interior by a controller controlling a refrigeration circuit, a blower, and a blowing switching portion in each seat air-conditioning device. A coordinating flow path is disposed to fluidly connect the blowing switching portion of one seat air-conditioning device to the blowing switching portion of the other seat air-conditioning device. The seat air-conditioning system performs the air conditioning for one seat by using the two seat air-conditioning devices by supplying conditioned air via the coordinating flow path under control of the controller.
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公开(公告)号：US20200086774A1
公开(公告)日：2020-03-19
申请号：US16694901
申请日：2019-11-25
申请人： DENSO CORPORATION
发明人： Akane MUTO , Teruyuki HOTTA , Tatsuhiro SUZUKI , Riho WATANABE , Shigeru KAWANO
摘要： In a seat air-conditioning device, a refrigeration cycle, a warm air blower, and a cold air blower are housed in a housing disposed between a seat face of a seat and a vehicle interior floor. A condenser is disposed on an upstream side in an air blowing direction and the warm air blower is disposed on a downstream side in an air blowing direction in a warm air flow path extending in a predetermined direction. An evaporator is disposed on a downstream side of the cold air blower in an air blowing direction in the cold air flow path extending in a predetermined direction.
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公开(公告)号：US20160280041A1
公开(公告)日：2016-09-29
申请号：US15027120
申请日：2014-09-22
申请人： DENSO CORPORATION
发明人： Tatsuhiro SUZUKI , Gouta OGATA , Yuichi SHIROTA
CPC分类号： B60H1/00921 , B60H1/00392 , B60H1/0075 , B60H2001/3298 , F25B1/06 , F25B1/10 , F25B5/04 , F25B41/04 , F25B41/062 , F25B43/006 , F25B2341/0012 , F25B2400/0409 , F25B2400/0411 , F25B2500/31 , F25B2600/112 , F25B2600/2501 , F25B2600/2513 , F25B2600/2515 , F25B2600/2519 , F25B2700/1931 , F25B2700/2103 , F25B2700/2104 , F25B2700/2106 , F25B2700/21152 , F25B2700/2117
摘要： An ejector draws a refrigerant on a downstream side of an exterior heat exchanger serving as an evaporator, from a refrigerant suction port by a suction effect of an injection refrigerant injected from a nozzle portion for decompressing a part of the refrigerant discharged from a compressor, and mixes the injection refrigerant with the suction refrigerant to pressurize the mixed refrigerant at a diffuser. The refrigerant flowing out of the diffuser is drawn into the compressor. In this way, the density of the refrigerant drawn into the compressor can be increased, thereby suppressing reduction in flow amount of the refrigerant flowing into an interior condenser serving as a radiator. Thus, even if the temperature of the outside air (heat-absorption target fluid) is decreased, the interior condenser is prevented from degrading its heating capacity for the ventilation air (heating target fluid).
摘要翻译： 喷射器从作为蒸发器的外部热交换器的下游侧的制冷剂从制冷剂吸入口通过从喷嘴部分喷射的喷射制冷剂的吸入效应吸引从压缩机排出的一部分制冷剂减压， 将注射制冷剂与吸入制冷剂混合以在扩散器上对混合的制冷剂加压。 从扩散器流出的制冷剂被吸入压缩机。 以这种方式，可以提高吸入压缩机的制冷剂的密度，从而抑制流入作为散热器的内部冷凝器的制冷剂的流量的减少。 因此，即使外部空气（吸热性目标流体）的温度降低，也能够防止内部冷凝器降低通风用空气（加热对象流体）的加热能力。
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公开(公告)号：US20190338790A1
公开(公告)日：2019-11-07
申请号：US16452758
申请日：2019-06-26
申请人： DENSO CORPORATION
发明人： Tatsuhiro SUZUKI , Gota OGATA , Yoichiro KAWAMOTO , Ryu FUKUSHIMA
摘要： An ejector includes a nozzle, a needle and a body. The nozzle reduces a pressure of a fluid and discharges the fluid as an injected fluid from a fluid injection port. The body includes a fluid suction port and a pressure increasing portion. The fluid suction port draws, as a suction fluid, a fluid from an outside of the body by using a suction force generated by the injected fluid. The pressure increasing portion increases a pressure of a mixture of the injected fluid and the suction fluid. The nozzle includes a throat portion and a nozzle-side tapered portion. The throat portion reduces a passage cross-sectional area of the fluid passage to be smallest in the fluid passage at the throat portion. The nozzle-side tapered portion expands the passage cross-sectional area of the fluid passage toward the downstream side in the flow direction of the fluid. In an axial cross section, an injection-flow spread angle formed on the downstream side in the flow direction of the fluid between a central axis and a tangent line of an injection-flow center line at the fluid injection port is 0° or greater.
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