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公开(公告)号：US20160090995A1
公开(公告)日：2016-03-31
申请号：US14890170
申请日：2014-05-14
申请人： DENSO CORPORATION
CPC分类号： F04F5/44 , B60H2001/3298 , F04F5/04 , F04F5/46 , F25B27/00 , F25B40/02 , F25B41/00 , F25B41/062 , F25B2327/001 , F25B2341/001 , F25B2341/0012 , F25B2341/06 , F25B2400/23 , F25B2500/18 , F25B2600/0253
摘要： A swirling space in which a refrigerant is swirled into a gas-liquid mixing state includes an upstream swirling space in which the refrigerant flowing from an external is swirled, and a downstream swirling space in which the refrigerant flowing from the upstream swirling space is introduced into a nozzle passage while swirling. Further, a cross-sectional shape of an outlet part of the upstream swirling space is formed into an annular shape along an outer peripheral shape of the upstream swirling space.
摘要翻译： 将制冷剂旋转成气液混合状态的旋转空间包括从外部流动的制冷剂旋转的上游旋转空间和从上游旋转空间流入的制冷剂被导入的下游旋转空间 一个旋转的喷嘴通道。 此外，上游旋转空间的出口部的截面形状沿着上游旋转空间的外周形状形成为环状。
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公开(公告)号：US20150345841A1
公开(公告)日：2015-12-03
申请号：US14655746
申请日：2013-12-23
申请人： DENSO CORPORATION
CPC分类号： F25B41/00 , B60H2001/3298 , F04F5/46 , F25B5/02 , F25B40/02 , F25B41/062 , F25B2341/0012 , F25B2400/23 , F25B2500/18
摘要： An ejector includes a body having a nozzle passage that depressurizes a refrigerant flowing out of a swirling space in which the refrigerant is swirled, a suction passage that draws a refrigerant from an external, and a diffuser passage that mixes an ejection refrigerant jetted from the nozzle passage and a suction refrigerant drawn from the suction passage together and pressurizes the mixed refrigerant. The body also has a gas-liquid separation space that separates the refrigerant flowing out of the diffuser passage into gas and liquid by an action of a centrifugal force, and multiple liquid-phase refrigerant outflow passages through which the liquid-phase refrigerant separated by the gas-liquid separation space flows out to the multiple evaporators.
摘要翻译： 喷射器包括具有喷嘴通道的主体，该喷嘴通道使从制冷剂旋转的旋转空间流出的制冷剂减压，从外部吸入制冷剂的吸入通道和将从喷嘴喷射的喷射制冷剂混合的扩散通路 通道和从吸入通道抽吸的吸入制冷剂一起对混合制冷剂加压。 主体还具有气液分离空间，其通过离心力的作用将从扩散器通道流出的制冷剂分离成气体和液体;以及多个液相制冷剂流出通道，液相制冷剂由 气液分离空间流出到多个蒸发器。
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公开(公告)号：US20180045225A1
公开(公告)日：2018-02-15
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
CPC分类号： F04F5/463 , F04F5/04 , F04F5/46 , F25B41/00 , F25B2341/001 , F25B2341/0012
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：US20160348948A1
公开(公告)日：2016-12-01
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
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.
摘要翻译： 喷射器具有旋转空间，减压空间，吸入通道，增压空间，喷嘴通道，扩散通路，形成喷嘴通道的通道形成构件和扩散通路，以及抑制部件 通道形成构件的振动。 所述振动抑制部具有：（i）第一弹性部件，其沿与所述喷嘴通路的中心轴方向垂直的截面积与所述扩散通路减小的方向对所述通道形成部件施加载荷， （ii）第二弹性构件，其沿与第一弹性构件向该通道形成构件施加负载的方向相反的方向向通道形成构件施加载荷。
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公开(公告)号：US20160186782A1
公开(公告)日：2016-06-30
申请号：US14908598
申请日：2014-07-25
申请人： DENSO CORPORATION
IPC分类号： F04F5/04
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.
摘要翻译： 在喷射器中，基本上圆锥形的通道形成构件设置在主体的内部，在其中形成空间，以限定用作喷嘴的喷嘴通道，混合通道，喷嘴制冷剂从喷嘴通道喷出，吸入制冷剂被抽出 从吸入通道混合在一起的扩散器通道，其将从混合通道流出的制冷剂的动能转换成主体的内周表面和通道形成构件之间的压力能量。 通道形成构件被构造成使得形成喷嘴通道的出口侧的部分的扩展角小于形成喷嘴通道的入口侧的部分在与轴向方向平行的横截面中的展开角度 通道形成构件。
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公开(公告)号：US20150308462A1
公开(公告)日：2015-10-29
申请号：US14443123
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： F04F5/46
CPC分类号： F04F5/46 , B60H1/00921 , B60H2001/3298 , F25B41/00 , F25B2341/0011 , F25B2341/0015
摘要： A mixing portion that mixes an injection refrigerant and a suction refrigerant is formed in a range of an internal space of a heating-side body portion of a heating-side ejector from a refrigerant injection port of a heating-side nozzle portion to an inlet of a heating-side diffuser. Further, the mixing portion is formed in a shape that gradually decreases a refrigerant passage area toward a downstream side of a refrigerant flow, and a refrigerant passage area of the inlet of the heating-side diffuser is set smaller than that of the refrigerant injection port. Thus, the flow velocity of the mixed refrigerant is decelerated to a value lower than a two phase sound velocity within the mixing portion, thereby suppressing occurrence of shock wave in the heating-side diffuser and stabilizing the pressure increasing performance in the heating-side diffuser.
摘要翻译： 混合喷射制冷剂和吸入制冷剂的混合部分在加热侧喷射器的加热侧主体部分的内部空间从加热侧喷嘴部分的制冷剂喷射口的入口到 加热侧扩散器。 此外，混合部形成为朝向制冷剂流的下游侧逐渐减小制冷剂通过面积的形状，并且将加热侧扩散器的入口的制冷剂通路面积设定为小于制冷剂喷射口的制冷剂通路面积 。 因此，混合制冷剂的流速被减速到低于混合部分内的两相声速的值，从而抑制加热侧扩散器中的冲击波的发生，并稳定加热侧扩散器中的增压性能 。
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公开(公告)号：US20190107124A1
公开(公告)日：2019-04-11
申请号：US16209246
申请日：2018-12-04
申请人： DENSO CORPORATION
IPC分类号： F04F5/10
摘要： An ejector includes a shaft coupled to a passage formation member defining a refrigerant passage inside a body, and the shaft is slidably supported by a support member fixed to the body. A drive mechanism moves the shaft in an axial direction to change a passage sectional area of the refrigerant passage. The passage formation member is provided with a vibration suppressive member including a first mobile end that applies a load to enlarge the refrigerant passage and a second mobile end that applies a load to narrow the refrigerant passage. Both the first mobile end and the second mobile end are disposed on a same side of a slide region of the support member in the axial direction.
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公开(公告)号：US20160200170A1
公开(公告)日：2016-07-14
申请号：US15023570
申请日：2014-09-15
申请人： DENSO CORPORATION
发明人： Yoichiro KAWAMOTO , Etsuhisa YAMADA , Haruyuki NISHIJIMA , Yoshiaki TAKANO , Yoshiyuki YOKOYAMA
CPC分类号： B60H1/00885 , B60H2001/3298 , F25B40/02 , F25B41/00 , F25B41/043 , F25B41/062 , F25B41/067 , F25B43/006 , F25B49/022 , F25B2341/0012 , F25B2341/0013 , F25B2400/23 , F25B2500/18 , F25B2700/195 , F25B2700/2104 , F25B2700/2106 , F25B2700/21173
摘要： An ejector-type refrigeration cycle includes a radiator radiating heat of refrigerant discharged from a compressor, an ejector depressurizing the refrigerant cooled in the radiator, a gas-liquid separator separating gas and liquid of the refrigerant flowing out of a diffuser portion of the ejector, an evaporator disposed in a refrigerant passage connecting the gas-liquid separator and a refrigerant suction port of the ejector, and an opening-closing valve switching between a first refrigerant flow path, in which an ejection refrigerant ejected from a nozzle portion of the ejector flows out of the diffuser portion, and a second refrigerant flow path, in which the ejection refrigerant flows out of the refrigerant suction port. When a rotation rate of the compressor is lower than or equal to a standard rotation rate, the first refrigerant flow path is switched to the second refrigerant flow path.
摘要翻译： 喷射式制冷循环包括散热从制冷剂排出的制冷剂的散热器，喷射器对在散热器中冷却的制冷剂进行减压，分离从分离器的扩散器部分流出的制冷剂的气液分离器， 设置在连接气液分离器和喷射器的制冷剂吸入口的制冷剂通路中的蒸发器，以及在从喷射器的喷嘴部喷出的喷射制冷剂流入的第一制冷剂流路之间切换的开闭阀 以及第二制冷剂流路，其中喷射制冷剂从制冷剂吸入口流出。 当压缩机的转速低于或等于标准转速时，第一制冷剂流路切换到第二制冷剂流路。
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公开(公告)号：US20160169565A1
公开(公告)日：2016-06-16
申请号：US14908010
申请日：2014-07-22
申请人： DENSO CORPORATION
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.
摘要翻译： 在喷射器中，通道形成构件设置在主体内部，其中形成有空间。 在本体的内周面与通道形成构件之间设有用作喷嘴的喷嘴通道，将从喷嘴通道喷出的喷射制冷剂和通过吸入通道吸入的吸入制冷剂混合在一起的混合通道，以及 扩散器通道，其将从混合通道流出的制冷剂的动能转换成压力能量。 混合通道具有在制冷剂流中朝向下游侧逐渐减小的截面积的形状。
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公开(公告)号：US20160047586A1
公开(公告)日：2016-02-18
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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