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公开(公告)号：US10344777B2
公开(公告)日：2019-07-09
申请号：US14908587
申请日：2014-07-25
申请人： DENSO CORPORATION
发明人： Eitaro Tanaka , Toru Takahashi , Satoshi Inoue , Haruyuki Nishijima , Etsuhisa Yamada , Yoichiro Kawamoto
IPC分类号： F04F5/04 , F04F5/46 , F04F5/44 , F04F5/48 , F25B41/00 , F25B41/06 , F04F5/16 , F25B27/00 , F25B40/02
摘要： In an ejector, formed in a body is a swirling space which lets a high-pressure refrigerant flowing from a refrigerant inlet port swirl and introduces the swirling high-pressure refrigerant into a depressurizing space in which the swirled high-pressure refrigerant is depressurized and expanded. A passage formation member that defines a nozzle passage and a diffuser passage is shaped to have a cross-sectional area increasing with distance from the depressurizing space. Further, a temperature sensing unit of a drive device that displaces the passage formation member is housed in the body, and the temperature sensing unit and a diaphragm have annular shapes to surround at least the axial line of the passage formation member.
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公开(公告)号：US10330123B2
公开(公告)日：2019-06-25
申请号：US14908598
申请日：2014-07-25
申请人： DENSO CORPORATION
摘要： In an ejector, a substantially conical passage formation member is disposed in the interior of a body forming a space therein to define a nozzle passage functioning as a nozzle, a mixing passage in which an ejection refrigerant ejected from the nozzle passage and a suction refrigerant drawn from a suction passage are mixed together, and a diffuser passage that converts a kinetic energy of the refrigerant that has flowed out of the mixing passage into a pressure energy, between an inner peripheral surface of the body and the passage formation member. The passage formation member is configured so that a spread angle of a portion forming an outlet side of the nozzle passage is smaller than a spread angle of a portion forming an inlet side of the nozzle passage in a cross-section parallel to an axial direction of the passage formation member.
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公开(公告)号：US10077923B2
公开(公告)日：2018-09-18
申请号：US14651498
申请日：2013-11-28
申请人： DENSO CORPORATION
CPC分类号： F25B1/06 , F04F5/04 , F04F5/461 , F25B9/08 , F25B41/00 , F25B41/06 , F25B2341/001 , F25B2341/0012
摘要： An ejector includes a body part having a depressurizing space in which a refrigerant flowing out of a swirling space is depressurized, a suction passage that draws a refrigerant from an external, and a pressurizing space in which the refrigerant from the depressurizing space is mixed with the refrigerant from the suction passage, a conical passage formation member that is arranged in the body part, and a driving device that displaces a nozzle body of the body part forming the depressurizing space. A nozzle passage is defined on an outer peripheral side of the passage formation member in the depressurizing space, a diffuser passage is formed on an outer peripheral side of the passage formation member in the pressurizing space, and an actuating bar that couples the driving device with the nozzle body is arranged without crossing the diffuser passage.
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公开(公告)号：US09879887B2
公开(公告)日：2018-01-30
申请号：US15111872
申请日：2014-12-16
申请人： DENSO CORPORATION
发明人： Toru Takahashi , Eitaro Tanaka , Satoshi Inoue , Masatoshi Kuroyanagi , Yoichiro Kawamoto , Etsuhisa Yamada , Haruyuki Nishijima
IPC分类号： F25B1/10 , F04F5/20 , F04F5/46 , F04F5/48 , F25B40/02 , F25B41/00 , F25B41/06 , F04F5/18 , F04F5/54 , F25B27/00 , B60H1/32
CPC分类号： F25B1/10 , B60H2001/3298 , F04F5/18 , F04F5/20 , F04F5/46 , F04F5/48 , F04F5/54 , F25B27/00 , F25B40/02 , F25B41/00 , F25B41/062 , F25B2327/001 , F25B2341/0012 , F25B2400/23 , F25B2500/18
摘要： An ejector has a swirling space, a pressure reducing space, a suction passage, a pressure increasing space, a nozzle passage, a diffuser passage, a passage forming member that forms the nozzle passage and the diffuser passage, and a vibration suppressing portion that suppresses a vibration of the passage forming member. The vibration suppressing portion has (i) a first elastic member that applies a load to the passage forming member in a direction in which an area of a cross section perpendicular to the direction of the central axis of the nozzle passage and the diffuser passage decreases and (ii) a second elastic member that applies a load to the passage forming member in a direction opposite from the direction in which the first elastic member applies the load to the passage forming member.
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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.
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公开(公告)号：US10316865B2
公开(公告)日：2019-06-11
申请号：US15556486
申请日：2016-03-02
申请人： DENSO CORPORATION
发明人： Yoshiyuki Yokoyama , Haruyuki Nishijima , Etsuhisa Yamada , Ryota Nakashima , Yoshiaki Takano , Kazunori Mizutori , Yorito Kohara , Hiroshi Shintani
摘要： An ejector has a nozzle, a body, a passage defining member and a drive portion. The body has a refrigerant suction port and a pressure increasing portion. A nozzle passage is defined between an inner surface of the nozzle and an outer surface of the passage defining member and has a minimum sectional area portion, a tapered portion, and an expansion portion. The minimum sectional area portion has a smallest passage sectional area. The tapered portion is located upstream of the minimum sectional area portion in a refrigerant flow direction and has a passage sectional area decreasing toward the minimum sectional area portion gradually. The expansion portion is located downstream of the minimum sectional area portion in the refrigerant flow direction and has a passage sectional area increasing gradually. The passage defining member has a groove that is recessed to increase the passage sectional area of the nozzle passage.
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公开(公告)号：US09897354B2
公开(公告)日：2018-02-20
申请号：US14908010
申请日：2014-07-22
申请人： DENSO CORPORATION
IPC分类号： F25B1/06 , F25B41/00 , F04F5/10 , F25B41/06 , F04F5/46 , F04F5/44 , F25B9/08 , F25B5/02 , F25B6/02 , F25B40/02 , B60H1/32
CPC分类号： F25B41/00 , B60H2001/3298 , F04F5/10 , F04F5/44 , F04F5/463 , F25B5/02 , F25B6/02 , F25B9/08 , F25B40/02 , F25B41/062 , F25B2327/001 , F25B2341/0012 , F25B2400/0407 , F25B2400/23 , F25B2500/18
摘要： In an ejector, a passage formation member is disposed inside a body forming a space therein. Provided between an inner peripheral surface of the body and the passage formation member are a nozzle passage functioning as a nozzle, a mixing passage in which an ejection refrigerant ejected from the nozzle passage and a suction refrigerant drawn through a suction passage are mixed together, and a diffuser passage that converts a kinetic energy of the refrigerant that has flowed out of the mixing passage into a pressure energy. The mixing passage has a shape gradually reducing in cross-sectional area toward a downstream side in the refrigerant flow.
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公开(公告)号：US09857102B2
公开(公告)日：2018-01-02
申请号：US14382647
申请日：2013-02-21
申请人： DENSO CORPORATION
CPC分类号： F25B1/06 , B60H2001/3298 , F04F5/20 , F04F5/46 , F04F5/48 , F04F5/52 , F25B41/00 , F25B2341/0012 , F25B2500/01
摘要： An ejector includes a swirl flow channel that is arranged on an upstream side of a nozzle portion. The swirl flow channel swirls the high pressure refrigerant and allows the refrigerant in a state of a gas-liquid mixed phase to flow into the nozzle portion. The ejector further includes a flow-rate changeable mechanism that is disposed at the upstream side of the swirl flow channel, and is capable of changing a flow rate of the high pressure refrigerant that flows into the swirl flow channel. Accordingly, a nozzle efficiency can be improved, and an operation according to a load of the refrigeration cycle is possible.
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公开(公告)号：US09581376B2
公开(公告)日：2017-02-28
申请号：US14779674
申请日：2014-03-19
申请人： DENSO CORPORATION
CPC分类号： F25D17/02 , B05B1/3489 , F04F5/10 , F04F5/46
摘要： An interior of a nozzle in an ejector is formed with a swirling space in which a refrigerant swirls, and a refrigerant passage in which the refrigerant that has flowed from the swirling space is depressurized. The refrigerant passage includes a minimum passage area part most reduced in the refrigerant passage area, and a divergent part that gradually enlarges in the refrigerant passage area from the minimum passage area part toward a refrigerant ejection port. Plate members, which reduce a velocity component of the refrigerant flowing into the minimum passage area part in a swirling direction, are disposed within the refrigerant passage.
摘要翻译： 在喷射器中的喷嘴的内部形成有制冷剂漩涡的旋转空间，并且从旋涡空间流出的制冷剂被减压的制冷剂通道。 制冷剂通路包括在制冷剂通过区域中最小的最小通道面积部分和从最小通道面积部分朝向制冷剂排出口在制冷剂通过区域中逐渐扩大的扩散部分。 在制冷剂通道内设置有减少流向最小通过区域部分的制冷剂在旋转方向上的速度分量的板构件。
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公开(公告)号：US20150300706A1
公开(公告)日：2015-10-22
申请号：US14443125
申请日：2013-11-01
申请人： DENSO CORPORATION
发明人： Ryoko Awa , Haruyuki Nishijima , Yoshiaki Takano , Etsuhisa Yamada , Satoshi Itoh , Kenta Kayano
IPC分类号： F25B29/00
CPC分类号： F25B29/003 , B60H1/00921 , B60H2001/3298 , F25B41/00 , F25B2341/0011 , F25B2341/0015
摘要： In a dehumidification-air heating mode, a refrigerant circuit is configured such that a refrigerant outlet side of an exterior heat exchanger communicates with a heating side refrigerant suction port of a heating side ejector as a refrigerant decompression means, and that a refrigerant inlet side of an interior evaporator communicates with an outlet side of a heating side diffuser of the heating side ejector. A refrigerant evaporation temperature in the exterior heat exchanger is set lower than that of the interior evaporator by a pressurizing effect of the heating side ejector. Thus, the amount of heat absorption by the refrigerant at the exterior heat exchanger is increased to improve the heating capacity of the air in an interior condenser.
摘要翻译： 在除湿空气加热模式中，制冷剂回路被构造成使得外部热交换器的制冷剂出口侧与作为制冷剂减压装置的加热侧喷射器的加热侧制冷剂吸入口连通，制冷剂入口侧 内部蒸发器与加热侧喷射器的加热侧扩散器的出口侧连通。 通过加热侧喷射器的加压效应，将外部热交换器的制冷剂蒸发温度设定为低于内部蒸发器的制冷剂蒸发温度。 因此，外部热交换器中的制冷剂的吸热量增加，以提高内部冷凝器中的空气的加热能力。
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