-
公开(公告)号：US10759258B2
公开(公告)日：2020-09-01
申请号：US16307272
申请日：2017-04-27
申请人： DENSO CORPORATION
发明人： Hiroshi Oshitani , Hiroshi Mieda
摘要： An ejector refrigeration cycle device includes: a decompressor that decompresses a refrigerant heat-exchanged in a radiator; a first exterior heat exchanger that exchanges heat between the refrigerant decompressed by the decompressor and outside air; an ejector that decompresses the refrigerant flowing out of the radiator in a nozzle portion and draws another refrigerant heat-exchanged in the first exterior heat exchanger; a branch portion in which the refrigerant heat-exchanged in the radiator branches to a side of the decompressor and a side of the nozzle portion; a second exterior heat exchanger that exchanges heat between the refrigerant pressurized in the ejector and the outside air; a bypass portion that causes the refrigerant heat-exchanged in the radiator to flow to the first exterior heat exchanger while bypassing the decompressor and the nozzle portion; and an opening/closing portion that opens or closes the bypass portion.
-
公开(公告)号：US11480197B2
公开(公告)日：2022-10-25
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.
-
公开(公告)号：US10767905B2
公开(公告)日：2020-09-08
申请号：US16073889
申请日：2017-01-24
申请人： DENSO CORPORATION
发明人： Haruyuki Nishijima , Yoshiaki Takano , Yoshiyuki Yokoyama , Hiroshi Oshitani , Yohei Nagano , Ryota Nakashima
摘要： An ejector includes a body including an inflow space into which a refrigerant flows, a passage formation member disposed inside the body and having a conical shape, and a nozzle passage having an annular cross section functioning as a nozzle and a diffuser passage having an annular cross section functioning as a pressurizing portion between an inner wall surface of the body and a conical lateral surface of the passage formation member. A drive mechanism that displaces the passage formation member along a center axis is coupled to an upstream actuating bar which extends from the passage formation member toward the inflow space and is slidably supported by the body. A largest outer diameter portion of an annular member forming a wall surface of the nozzle passage provides a throat portion functioning as an edge for enlarging a passage cross-sectional area to cause a separation vortex in the refrigerant.
-
公开(公告)号：US20150253045A1
公开(公告)日：2015-09-10
申请号：US14433439
申请日：2013-09-05
申请人： DENSO CORPORATION
IPC分类号： F25B30/02
CPC分类号： F25B30/02 , B60H1/00921 , B60H2001/00942 , B60H2001/3298 , F25B5/04 , F25B6/04 , F25B2341/0662 , F25B2400/04 , F25B2400/13 , F25B2400/23
摘要： In an air cooling mode of cooling air as a fluid to be heat-exchanged, a refrigeration cycle device is provided to perform switching to a refrigerant circuit in which a high-pressure refrigerant exchanging heat with outside air in an exterior heat exchanger and dissipating heat therefrom flows into an accumulator serving as a gas-liquid separator. In an air heating mode of heating the air, the refrigeration cycle device also performs switching to another refrigerant circuit that allows a low-pressure refrigerant decompressed by a first expansion valve to flow into the accumulator. Thus, even in any operation mode, a difference between a refrigerant temperature in the accumulator and the outside air temperature is reduced to thereby suppress the degradation of performance of the refrigeration cycle device due to the unnecessary transfer of heat between the refrigerant in the accumulator and the outside air.
摘要翻译： 在作为被热交换的流体的冷却空气的空气冷却模式中，设置制冷循环装置，以切换到制冷剂回路，在制冷剂回路中，与外部热交换器中的外部空气进行热交换的高压制冷剂和散热 从而流入用作气液分离器的蓄液器。 在对空气进行加热的空气加热模式中，制冷循环装置也进行切换到能够使由第一膨胀阀减压的低压制冷剂流入蓄压器的另一个制冷剂回路。 因此，即使在任何操作模式中，蓄能器中的制冷剂温度与外部空气温度之间的差异减小，从而抑制了由于蓄能器中的制冷剂和蓄电池中的不必要的热传递而导致的制冷循环装置的性能下降 外面的空气。
-
公开(公告)号：US09726407B2
公开(公告)日：2017-08-08
申请号：US14378010
申请日：2012-12-05
申请人： DENSO CORPORATION
IPC分类号： F25B41/06
CPC分类号： F25B41/062 , F25B2341/0683 , F25B2500/01
摘要： A temperature sensitive rod is communicated with a diaphragm that is displaceable in response to a pressure difference between an internal pressure of a sealed space, in which a temperature sensitive medium is sealed, and a pressure of a low pressure refrigerant outputted from an evaporator. A blind hole, which opens to the sealed space, is formed in an inside of the temperature sensitive rod. The temperature sensitive medium is a mixture gas of the refrigerant and an inert gas. A mixing ratio of the inert gas in the temperature sensitive medium corresponds to a ratio of an equivalent diameter of the blind hole relative to a depth of the blind hole in such a manner that a time constant of heat conduction from the temperature sensitive rod to the temperature sensitive medium is kept within a desired time constant range.
-
公开(公告)号：US09726403B2
公开(公告)日：2017-08-08
申请号：US14433439
申请日：2013-09-05
申请人： DENSO CORPORATION
CPC分类号： F25B30/02 , B60H1/00921 , B60H2001/00942 , B60H2001/3298 , F25B5/04 , F25B6/04 , F25B2341/0662 , F25B2400/04 , F25B2400/13 , F25B2400/23
摘要： In an air cooling mode of cooling air as a fluid to be heat-exchanged, a refrigeration cycle device is provided to perform switching to a refrigerant circuit in which a high-pressure refrigerant exchanging heat with outside air in an exterior heat exchanger and dissipating heat therefrom flows into an accumulator serving as a gas-liquid separator. In an air heating mode of heating the air, the refrigeration cycle device also performs switching to another refrigerant circuit that allows a low-pressure refrigerant decompressed by a first expansion valve to flow into the accumulator. Thus, even in any operation mode, a difference between a refrigerant temperature in the accumulator and the outside air temperature is reduced to thereby suppress the degradation of performance of the refrigeration cycle device due to the unnecessary transfer of heat between the refrigerant in the accumulator and the outside air.
-
公开(公告)号：US11530854B2
公开(公告)日：2022-12-20
申请号：US16743804
申请日：2020-01-15
申请人： DENSO CORPORATION
发明人： Hiroshi Maeda , Hiroshi Oshitani , Yoichiro Kawamoto , Yohei Nagano , Daisuke Sakurai , Masahiro Ito , Hang Yuan
摘要： An ejector refrigeration cycle includes a compressor, a radiator, a branch portion, an ejector, a suction side decompressor, a windward evaporator, and a leeward evaporator. The ejector includes a nozzle portion and a pressure increasing portion. The windward evaporator and the leeward evaporator include at least one outflow side evaporation portion. The leeward evaporator includes a suction side evaporation portion. An outflow side evaporation temperature is a refrigerant evaporation temperature in the at least one outflow side evaporation portion of the leeward evaporator. A suction side evaporation temperature is a refrigerant evaporation temperature in the suction side evaporation portion of the leeward evaporator. At least one of the nozzle portion or the suction side decompressor is configured to adjust a refrigerant passage area such that a temperature difference between the outflow side evaporation temperature and the suction side evaporation temperature is at or below a predetermined reference temperature difference.
-
公开(公告)号：US11053956B2
公开(公告)日：2021-07-06
申请号：US16073824
申请日：2017-01-24
申请人： DENSO CORPORATION
发明人： Haruyuki Nishijima , Yoshiaki Takano , Yoshiyuki Yokoyama , Hiroshi Oshitani , Yohei Nagano , Ryota Nakashima
摘要： An ejector includes a body including an inflow space into which a refrigerant flows, a passage formation member disposed inside the body and having a conical shape, and a nozzle passage having an annular cross section which functions as a nozzle and a diffuser passage having an annular cross section which functions as a pressure increase portion, the nozzle passage and the diffuser passage being disposed between an inner wall surface of the body and a conical lateral surface of the passage formation member. A drive mechanism that displaces the passage formation member in a direction along a center axis is coupled to an upstream actuating bar which extends from the passage formation member toward the inflow space and is slidably supported by the body. Center axes of the passage formation member, the upstream actuating bar and the inflow space are coaxial with each other.
-
公开(公告)号：US20150013368A1
公开(公告)日：2015-01-15
申请号：US14378010
申请日：2012-12-05
申请人： DENSO CORPORATION
IPC分类号： F25B41/06
CPC分类号： F25B41/062 , F25B2341/0683 , F25B2500/01
摘要： A temperature sensitive rod is communicated with a diaphragm that is displaceable in response to a pressure difference between an internal pressure of a sealed space, in which a temperature sensitive medium is sealed, and a pressure of a low pressure refrigerant outputted from an evaporator. A blind hole, which opens to the sealed space, is formed in an inside of the temperature sensitive rod. The temperature sensitive medium is a mixture gas of the refrigerant and an inert gas. A mixing ratio of the inert gas in the temperature sensitive medium corresponds to a ratio of an equivalent diameter of the blind hole relative to a depth of the blind hole in such a manner that a time constant of heat conduction from the temperature sensitive rod to the temperature sensitive medium is kept within a desired time constant range.
摘要翻译： 温度敏感杆与膜片连通，隔膜响应于密封空间的密封压力和与蒸发器输出的低压制冷剂的压力之间的压力差而可移动。 在温度敏感杆的内部形成有向密封空间开口的盲孔。 温度敏感介质是制冷剂和惰性气体的混合气体。 温度敏感介质中的惰性气体的混合比对应于盲孔的当量直径相对于盲孔的深度的比例，使得从感温棒到热敏介质的热传导的时间常数 温度敏感介质保持在期望的时间常数范围内。
-
-
-
-
-
-
-
-
搜索结果
9 条记录 (耗时 0.015 秒)
