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公开(公告)号：US20170297416A1
公开(公告)日：2017-10-19
申请号：US15513496
申请日：2015-08-18
申请人： DENSO CORPORATION
发明人： Toshiyuki TASHIRO , Masahiro YAMADA , Makoto KUME , Haruyuki NISHIJIMA , Youhei NAGANO , Yoshiyuki YOKOYAMA , Yoshinori ARAKI
IPC分类号： B60H1/32
CPC分类号： B60H1/3211 , B60H2001/3255 , B60H2001/3277 , B60H2001/3285 , B60H2001/3298 , F25B27/00 , F25B40/02 , F25B41/00 , F25B41/062 , F25B49/02 , F25B2327/001 , F25B2341/0012 , F25B2341/0014 , F25B2400/0403 , F25B2400/0417 , F25B2400/121 , F25B2400/23 , F25B2500/18 , F25B2600/2501 , F25B2700/1931 , F25B2700/2104 , F25B2700/2106 , F25B2700/2117
摘要： An ejector refrigeration cycle device includes: a radiator that dissipates heat from a refrigerant discharged from a compressor; an ejector module that decompresses the refrigerant cooled by the radiator; and an evaporator that evaporates a liquid-phase refrigerant separated in a gas-liquid separation space of the ejector module. A grille shutter is disposed as an inflow-pressure increasing portion between the radiator and a cooling fan blowing the outside air toward the radiator. The grille shutter is operated to decrease the volume of the outside air to be blown toward the radiator when an outside air temperature is equal to or lower than a reference outside air temperature, thereby increasing the pressure of the inflow refrigerant to flow into a nozzle passage of the ejector module.
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公开(公告)号：US20170307259A1
公开(公告)日：2017-10-26
申请号：US15513469
申请日：2015-08-18
申请人： DENSO CORPORATION
发明人： Yoshinori ARAKI , Toshiyuki TASHIRO , Masahiro YAMADA , Makoto KUME , Haruyuki NISHIJIMA , Youhei NAGANO , Yoshiyuki YOKOYAMA
CPC分类号： F25B1/06 , F25B5/02 , F25B6/04 , F25B39/00 , F25B39/02 , F25B41/00 , F25B41/04 , F25B2341/001 , F25B2341/0011 , F25B2341/0012 , F25B2341/0014 , F25B2600/2515 , F25B2700/2104 , F25B2700/2106 , F25B2700/2117
摘要： When intended to increase a refrigerant discharge capacity of a compressor in an ejector refrigeration cycle device at start-up of the compressor, the refrigerant discharge capacity is increased in such a manner that an increase amount in the refrigerant discharge capacity of the compressor per predetermined time period is lower than a maximum capacity increase amount per predetermined time period enabled by the compressor. Thus, even if a gas-liquid two-phase refrigerant flows into a refrigerant inflow passage forming a swirling-flow generating portion, the flow velocity of the gas-liquid two-phase refrigerant is prevented from becoming high, so that it can reduce friction noise that would be caused when the gas-liquid two-phase refrigerant circulates through the refrigerant inflow passage, further suppressing the generation of noise from the ejector.
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公开(公告)号：US20170232822A1
公开(公告)日：2017-08-17
申请号：US15502631
申请日：2015-08-07
申请人： DENSO CORPORATION
IPC分类号： B60H1/32
CPC分类号： B60H1/3229 , B60H1/3204 , B60H2001/3297 , B60H2001/3298 , F25B41/00 , F25B2341/0012 , F25B2400/23 , F25B2500/18
摘要： An ejector-type refrigeration cycle includes an ejector module integrated with a gas-liquid separation device. The ejector module is disposed outside an area that overlaps with an engine when viewed from a vehicular upper side. Further, the ejector module may be disposed outside an area overlapping with the engine when viewed from the vehicular front side, and the ejector module may be disposed outside of side members in a vehicle width direction.
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公开(公告)号：US20180023847A1
公开(公告)日：2018-01-25
申请号：US15551047
申请日：2016-03-04
申请人： DENSO CORPORATION
CPC分类号： F25B1/06 , F04B39/04 , F04B41/06 , F25B41/00 , F25B41/062 , F25B43/02 , F25B2341/0011 , F25B2341/0012 , F25B2400/23 , F25B2500/18
摘要： An ejector refrigeration cycle has a compressor, a radiator, an ejector, a swirl flow generator, an evaporator, and an oil separator. The compressor compresses refrigerant, mixed with refrigerant oil compatible with a liquid-phase refrigerant, and discharges the high-pressure refrigerant. The ejector has a nozzle and a body having a refrigerant suction port and a pressure increasing part. The swirl flow generator is configured to cause a decompression boiling in the refrigerant by causing the refrigerant to swirl about a center axis of the nozzle. The oil separator separates the refrigerant oil from the high-pressure refrigerant compressed by the compressor and guides the refrigerant oil to flow to a suction side of the compressor. The oil separator decreases a concentration of the refrigerant oil in the refrigerant, which is to flow into the swirl flow generator, so as to promote the decompression boiling of the refrigerant in the swirl flow generator.
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公开(公告)号：US20170299227A1
公开(公告)日：2017-10-19
申请号：US15513508
申请日：2015-08-18
申请人： DENSO CORPORATION
发明人： Makoto KUME , Masahiro YAMADA , Toshiyuki TASHIRO , Yoshinori ARAKI , Haruyuki NISHIJIMA , Youhei NAGANO , Yoshiyuki YOKOYAMA
CPC分类号： F25B1/06 , F25B6/04 , F25B41/00 , F25B49/02 , F25B2341/0012 , F25B2341/0014 , F25B2700/1931 , F25B2700/2104 , F25B2700/2106 , F25B2700/2117
摘要： An ejector-type refrigeration cycle has a compressor, an ejector module, a discharge capacity control section, and a pressure difference determining section. The ejector module has a body providing a gas-liquid separating space. The pressure difference determining section determines whether a low pressure difference operating condition is met. The low pressure difference operating condition is an operating condition in which a pressure difference obtained by subtracting a low-pressure side refrigerant pressure from a high-pressure side refrigerant pressure a predetermined reference pressure difference or lower. The body is provided with an oil return passage that guides a part of a liquid-phase refrigerant to flow from the gas-liquid separating space to a suction side of the compressor. The discharge capacity control section sets a refrigerant discharge capacity to be a predetermined reference discharge capacity or higher when the low pressure difference operating condition is determined to be met.
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公开(公告)号：US20170232821A1
公开(公告)日：2017-08-17
申请号：US15502606
申请日：2015-08-07
申请人： DENSO CORPORATION
发明人： Hiroshi KATAOKA , Shun KURATA , Isamu TAKASUGI , Haruyuki NISHIJIMA , Youhei NAGANO , Yoshiyuki YOKOYAMA
IPC分类号： B60H1/32
CPC分类号： B60H1/3204 , B60H2001/3291 , B60H2001/3297 , B60H2001/3298 , F04B41/06 , F04F5/46 , F25B6/04 , F25B41/00 , F25B2341/0012
摘要： An ejector-type refrigeration cycle includes an ejector module integrated with a gas-liquid separation device. A length of an inlet pipe that connects a liquid-phase refrigerant outflow port of an ejector module to a refrigerant inflow port of an evaporator is shorter than a length of a suction pipe that connects a gas-phase refrigerant outflow port of the ejector module to a suction port of the compressor.
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公开(公告)号：US20170225543A1
公开(公告)日：2017-08-10
申请号：US15502579
申请日：2015-08-07
申请人： DENSO CORPORATION
发明人： Shun KURATA , Yoshiyuki YOKOYAMA , Youhei NAGANO , Haruyuki NISHIJIMA , Isamu TAKASUGI , Hiroshi KATAOKA
IPC分类号： B60H1/32
CPC分类号： B60H1/3204 , B60H1/3211 , B60H1/323 , B60H2001/325 , B60H2001/3285 , B60H2001/3297 , B60H2001/3298 , F25B6/04 , F25B41/00 , F25B2341/0012
摘要： An ejector-type refrigeration cycle includes an ejector module integrated with a gas-liquid separation device. A length of a suction pipe that connects a gas-phase refrigerant outflow port of the ejector module to a suction port of a compressor is set to be shorter than a length of an outlet pipe that connects a refrigerant outflow port of an evaporator to a refrigerant suction port of the ejector module. A pressure loss that occurs when a refrigerant flows in the suction pipe may be set to be lower than a pressure loss that occurs when the refrigerant flows in an outlet pipe.
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