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1.发明授权Refrigerant evaporator having upstream and downstream tanks of different cross sections 失效制冷剂蒸发器具有不同截面的上游和下游罐
公开(公告)号：US5680773A
公开(公告)日：1997-10-28
申请号：US739934
申请日：1996-10-30
CPC分类号： F28D1/0333 , B60H1/00335 , B60H1/3227 , F25B39/022 , Y10S165/466
摘要： A refrigerant evaporator has, at each of a downstream side and an upstream side with respect to a flow direction of air, a pair of upper and lower tanks and a tube connecting the tanks. A refrigerant flows from the pair of tanks and the tube at the downstream side to the pair of tanks and the tube at the upstream side to cool the air flowing outside the tubes. The tanks at the upstream side are formed in an elliptic shape in cross section and the tanks at the downstream side are formed in a circular shape in cross section. The shorter diameter of the elliptic shape lies in a longitudinal direction of the tubes and is the same as the diameter of the circular shape.
摘要翻译： 制冷剂蒸发器相对于空气的流动方向在下游侧和上游侧具有一对上部和下部罐以及连接罐的管。 制冷剂从一对罐和下游侧的管流向上游侧的一对罐和管，以冷却流过管的空气。 上游侧的槽形成为椭圆形截面，下游侧的槽形成为圆形截面。 椭圆形的较短直径位于管的纵向方向上，并且与圆形的直径相同。
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公开(公告)号：US5651268A
公开(公告)日：1997-07-29
申请号：US580651
申请日：1995-12-29
CPC分类号： F28F9/027 , F25B39/028
摘要： An evaporator capable of improving heat-exchange efficiency by enhancing performance to distribute refrigerant to many refrigerant passages of a refrigerant distribution pipe from a throttle. The evaporator is capable of suppressing the occurrence of a refrigerant passing noise by the throttle while maintaining the throttle of a nozzle at a certain size as to be able to function as a throttle. The inner diameter of the throttle in the nozzle is made as large as possible. The cross-sectional center of the throttle of the nozzle is off-centered toward the upper side relative to the cross-sectional center of the refrigerant distribution pipe inserted into the inlet tank of the evaporator. The refrigerant flows out of the throttle in a mixed condition of liquid and gas, and separation of gas and liquid in the refrigerant is alleviated inside the refrigerant distribution chamber. The refrigerant flowing out of the throttle of the nozzle can easily flow into the upper side of the refrigerant distribution pipe rather than the lower side. Thus, the performance of refrigerant distribution from the throttle to many refrigerant passages of the refrigerant distribution pipe is improved.
摘要翻译： 一种能够通过提高制冷剂从制冷剂分配制冷剂分配管的许多制冷剂通道的性能来提高热交换效率的蒸发器。 蒸发器能够通过节流阀抑制制冷剂通过噪声的发生，同时将喷嘴的节气门保持在一定的尺寸以能够用作节气门。 喷嘴中的节流阀的内径尽可能大。 喷嘴的节流阀的横截面中心相对于插入蒸发器的入口箱的制冷剂分配管的横截面中心向上偏心。 制冷剂在液体和气体的混合状态下流出节流阀，并且制冷剂分配室内的制冷剂中的气体和液体的分离减轻。 从喷嘴的节流阀流出的制冷剂容易流入制冷剂分配管的上侧而不是下侧。 因此，制冷剂分配管的制冷剂通道从节气门到制冷剂通道的制冷剂分布的性能提高。
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公开(公告)号：US4870834A
公开(公告)日：1989-10-03
申请号：US199659
申请日：1988-05-27
CPC分类号： F25B41/04 , Y10T137/7781
摘要： A refrigeration system for use in an automotive air conditioner comprises a compressor for compressing vapor-phase refrigerant, a condenser connected to the outlet of the compressor, an expansion valve connected to the outlet of the valve, and a vapor pressure-adjusting valve mounted in the passage extending from the evaporator to the compressor. When the vapor pressure inside this passage is less than a certain value, the adjusting valve reduces the flow of refrigerant from the evaporator to the compressor to maintain the vapor pressure constant. A part of the liquid-phase refrigerant on the downstream side of the condenser is added to the refrigerant evaporated by the evaporator, by means of the adjusting valve.
摘要翻译： 一种用于汽车空调的制冷系统包括用于压缩气相制冷剂的压缩机，连接到压缩机出口的冷凝器，连接到阀出口的膨胀阀以及安装在 从蒸发器延伸到压缩机的通道。 当该通道内的蒸气压小于一定值时，调节阀减少制冷剂从蒸发器流到压缩机的流量，以保持蒸汽压力恒定。 冷凝器下游侧的液相制冷剂的一部分通过调节阀被添加到由蒸发器蒸发的制冷剂中。
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公开(公告)号：US5720340A
公开(公告)日：1998-02-24
申请号：US680655
申请日：1996-07-16
CPC分类号： F28F21/084 , F28D1/0341 , F28F19/004 , Y10T29/49393
摘要： A laminated type heat exchanger includes a plurality of refrigerant passages which are formed by pairs of core plates. Each core plate comprises an outer covering layer, a core layer, and an inner covering layer. The outer covering layer is made of a brazing material of which electric potential is more negative than the core layer while the inner covering layer is made of a brazing material of which electric potential is equal to or more positive than the core layer. The refrigerant passages are formed by brazing only the adjacent two of the inner covering layer. The outer covering layer works as a sacrificial corrosive material with respect to the inner covering layer and the core layer. Leakage of refrigerant from the brazed portions of the core plates is prevented, whereby the corrosion resistance of the laminated type heat exchanger is improved.
摘要翻译： 层叠型热交换器包括由成对的芯板形成的多个制冷剂通路。 每个芯板包括外覆盖层，芯层和内覆层。 外覆盖层由电阻比芯层更负的钎焊材料制成，而内覆盖层由电阻等于或大于芯层的正极的钎焊材料制成。 制冷剂通道仅通过钎焊相邻的两个内覆盖层形成。 外覆盖层相对于内覆层和芯层作为牺牲腐蚀性材料起作用。 防止了从芯板的钎焊部分泄漏制冷剂，从而提高了层叠型热交换器的耐腐蚀性。
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公开(公告)号：US5481886A
公开(公告)日：1996-01-09
申请号：US245502
申请日：1994-05-18
申请人： Etsuo Hasegawa , Yoshiharu Kajikawa , Takayuki Morita , Suehiro Okazaki , Toshihiro Yamamoto , Toshiya Nagasawa , Shogo Sumi
发明人： Etsuo Hasegawa , Yoshiharu Kajikawa , Takayuki Morita , Suehiro Okazaki , Toshihiro Yamamoto , Toshiya Nagasawa , Shogo Sumi
CPC分类号： F28F17/005 , B60H1/3233 , F24F13/22 , F28D1/0341 , F28D2021/0085 , Y10S165/913
摘要： A drain case 4 is disposed between the bottom wall of a unit case and the lower end of refrigerant passage pipes 15 of a stacked type refrigerant evaporator. The drain case 4 is W-shape in cross section, and comprising two pieces of outside inclined walls 32 contacting the side ends of two pieces of tank parts 16 and 17 formed at the lower end side of the refrigerant passage pipes 15, a chevron type protruded wall 33 contacting a recessed part 28 formed at the bottom end of the part between the adjacent two pieces of tank parts 16 and 17, and inside inclined walls 34 having a drain hole 36. In this arrangement, the condensed water flows from the side ends of the two pieces of tank parts 16 and 17 and the part between the two pieces of tank part 16 and 17 into the lower ends thereof reaches the two pieces of outside inclined walls 32 and protruded wall 33 of the drain case 4 before reaching the bottom end of the two pieces of tank parts 16 and 17, and then is efficiently drained therefrom. Localized corrosion that may occur at the lower end part of refrigerant passage pipes is prevented by not allowing the condensed water to stay at the lower end side of the refrigerant passage pipes.
摘要翻译： 在单元壳体的底壁和层叠型制冷剂蒸发器的制冷剂通过管15的下端之间设置有排水口4。 排水壳体4的横截面为W形，并且包括两个与制冷剂通道管15的下端侧形成的两个箱部16和17的侧端接触的外侧倾斜壁32，人字形 与形成在相邻的两个槽部16和17之间的部分的底端处的凹部28以及具有排水孔36的内倾斜壁34接触的突出壁33构成。冷凝水从侧面流动 两个储罐部分16和17的两端和两个罐部分16和17之间的部分进入其下端，在到达泄漏壳4的两个外倾斜壁32和突出壁33之前到达 两个罐部分16和17的底端，然后被有效地排出。 通过不使冷凝水停留在制冷剂通路管的下端侧，可以防止在制冷剂通路管的下端部发生局部腐蚀。
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公开(公告)号：US06408933B1
公开(公告)日：2002-06-25
申请号：US09876660
申请日：2001-06-07
申请人： Shokichi Fukuoka , Yoshiharu Kajikawa , Akio Hirano , Yasuaki Tsukagoshi , Atsushi Yazawa , Yasuhiro Ando , Fumiaki Nakamura , Hideo Harada , Shinichi Inagaki
发明人： Shokichi Fukuoka , Yoshiharu Kajikawa , Akio Hirano , Yasuaki Tsukagoshi , Atsushi Yazawa , Yasuhiro Ando , Fumiaki Nakamura , Hideo Harada , Shinichi Inagaki
IPC分类号： F28F900
摘要： In a heat exchanger having a side plate for reinforcing a core portion, after an elastic support member for supporting the core portion is inserted between opposite walls of the side plate, a part of the opposite walls having a slit portion is plastically deformed at a position around the slit to form a protrusion. The protrusion protrudes toward the support member to be engaged with a recess of the elastic support member. Further, the silt is provided to penetrate through each opposite wall without being opened to an outer peripheral end of the side plate. Accordingly, the support member can be readily attached to the side plate, while it can prevent the side plate from being deformed in a brazing.
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公开(公告)号：US5735343A
公开(公告)日：1998-04-07
申请号：US767951
申请日：1996-12-17
CPC分类号： F25B39/022 , F28D1/0333 , F28F3/04 , F28D2021/0085
摘要： A core plates forming a core body includes an upstream refrigerant passage for communicating an upper and a lower tank disposed at a downstream side and a downstream refrigerant passage for communicating an upper and a lower tanks disposed at an upstream side with respect to the air flow direction. Ribs are formed on an inner surface of the upstream refrigerant passage to agitate the refrigerant, and inner fins are provided on the inner surface of the downstream refrigerant passage which receives a refrigerant after passing through each the upstream refrigerant passage of each the core body.
摘要翻译： 形成芯体的芯板包括用于连通设置在下游侧的上下罐的上游制冷剂通道和用于连通相对于空气流动方向设置在上游侧的上下罐的下游制冷剂通道 。 在上游制冷剂通路的内表面上形成肋状物，搅拌制冷剂，在通过各芯体的上游侧制冷剂通路的制冷剂的下游制冷剂通路的内表面上设置有内部散热片。
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公开(公告)号：US5524455A
公开(公告)日：1996-06-11
申请号：US414057
申请日：1995-03-30
申请人： Etsuo Hasegawa , Yasushi Yamanaka , Yoshiyuki Yamauchi , Masahiro Shimoya , Toshio Ohara , Yoshiharu Kajikawa , Toshihiro Yamamoto , Kenichi Fujiwara , Shin Nishida , Yoshiaki Takano , Nobuharu Kakehashi
发明人： Etsuo Hasegawa , Yasushi Yamanaka , Yoshiyuki Yamauchi , Masahiro Shimoya , Toshio Ohara , Yoshiharu Kajikawa , Toshihiro Yamamoto , Kenichi Fujiwara , Shin Nishida , Yoshiaki Takano , Nobuharu Kakehashi
CPC分类号： F25B40/00 , F25B39/022 , F25B41/04 , F25B41/062 , F28D1/0341 , F25B2341/0662 , F25B2400/0417
摘要： An amount of refrigerant fed to an evaporator 16 is adjusted by an open degree of an expansion valve 6 in accordance to a refrigerant pressure and a refrigerant temperature of an outlet side of the evaporator 16. The evaporator 16 has an evaporation part which includes a refrigerant passage 26 connecting parallel with an inflow passage 22 and an outflow passage 24 and further having a cooled passage 28 which forms a first throttle 30 at the downstream thereof and a cooling passage 32. The cooled passage 28 links the expansion valve 6 and the inflow passage 22. The cooling passage 32 is connected to the outflow passage 24 and leads refrigerant to an outlet. A heat exchange part 20 is provided to be able to of performing heat exchange between the cooled passage 28 and the cooling passage 32. A second throttle is set in a bypass passage 38 which links the upstream side of the cooled passage 28 and the downstream side of the first throttle 30.
摘要翻译： 根据制冷剂压力和蒸发器16的出口侧的制冷剂温度，通过膨胀阀6的开度来调节供给到蒸发器16的制冷剂量。蒸发器16具有包括制冷剂的蒸发部 通道26与流入通道22和流出通道24平行地连接，并且还具有在其下游形成第一节流阀30的冷却通道28和冷却通道32.冷却通道28将膨胀阀6和流入通道 冷却通道32连接到流出通道24并将制冷剂引导到出口。 设置有能够在冷却通路28与冷却通路32之间进行热交换的热交换部20。另外，在将冷却通路28的上游侧与下游侧连结的旁路通路38设定第二节流阀 的第一个油门30。
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公开(公告)号：US4936108A
公开(公告)日：1990-06-26
申请号：US371727
申请日：1989-06-27
CPC分类号： F25B41/04 , Y10T137/7781
摘要： A refrigeration system for use in an automotive air conditioner comprises a compressor for compressing vapor-phase refrigerant, a condenser connected to the outlet of the compressor, an expansion valve connected to the outlet of the valve, and a vapor pressure-adjusting valve mounted in the passage extending from the evaporator to the compressor. When the vapor pressure inside this passage is less than a certain value, the adjusting valve reduces the flow of refrigerant from the evaporator to the compressor to maintain the vapor pressure constant. A part of the liquid-phase refrigerant on the downstream side of the condenser is added to the refrigerant evaporated by the evaporator, by means of the adjusting valve.
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公开(公告)号：US5203498A
公开(公告)日：1993-04-20
申请号：US917188
申请日：1992-07-22
申请人： Yoshiharu Kajikawa
发明人： Yoshiharu Kajikawa
CPC分类号： B60H1/00885 , B60H1/08
摘要： A heater core supplied with hot water by a cooling water recirculating passageway of an internal combustion engine, and having a plurality of parallel tubes arranged between first and second tanks. The heater core forms a first cooling water flow circuit for creating a U-shaped flow whereby the cooling water from the first tank is introduced into the second tank via a group of tubes and then introduced into the first tank via a different group of tubes, and a second cooling water flow circuit for creating a straight flow from the first tank and second tank. A flow switching valve is provided and is usually switched to the first cooling water flow circuit. Upon a drop in the engine rotational speed to an idling speed, wherein the amount of hot water supplied to the heater core is small, the second cooling water flow circuit creating a one-directional flow from the first tank to the second tank is selected, whereby the flow resistance is lowered, and accordingly, the amount of heat emitted from the heater core increased, to thus maintain a desired heating performance during the engine idling condition.
摘要翻译： 一种由内燃机的冷却水循环通道供应热水的加热器芯，并且具有布置在第一和第二罐之间的多个平行的管。 加热器芯形成用于产生U形流的第一冷却水流回路，由此来自第一罐的冷却水经由一组管引入第二罐，然后经由不同的管组引入第一罐， 以及用于从第一罐和第二罐产生直流的第二冷却水流回路。 设置流量切换阀，通常切换到第一冷却水流回路。 当发动机转速下降到空转速度时，其中供应到加热器芯的热水量较小，选择产生从第一罐到第二罐的单向流的第二冷却水流动回路， 由此流动阻力降低，因此，从加热器芯发出的热量增加，从而在发动机怠速状态期间保持期望的加热性能。
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