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1. 发明授权

US06966200B2 Evaporator and refrigerator 有权
标题翻译：蒸发器和冰箱
公开(公告)号：US06966200B2
公开(公告)日：2005-11-22
申请号：US10019019
申请日：2001-04-26
申请人： Yoichiro Iritani , Akihiro Kawada , Koji Hirokawa , Sunao Aoki , Yoshinori Shirakata , Wataru Seki
发明人： Yoichiro Iritani , Akihiro Kawada , Koji Hirokawa , Sunao Aoki , Yoshinori Shirakata , Wataru Seki
IPC分类号： F25B39/02 , F28D7/00 , F28D7/16 , F28F13/08 , F28D7/10
CPC分类号： F28D21/0017 , F25B39/02 , F25B2339/0242 , F25B2500/01 , F28D7/0066 , F28D7/0091 , F28F13/08
摘要： An evaporator is constructed such that bundles of heat exchanger tubes for flowing cold water are disposed inside a container for admitting the cooling medium. When a total cross sectional area of the heat exchanger tubes at various locations in a flow passage of the cold water is compared, the total area in a downstream location is less than a total area in an upstream location of the flow passage. Therefore, even though the temperature differential between the cold water and the cooling medium is small, the flow speeds of the cold water in the downstream tubes become faster than that in the upstream tubes, so that the heat flux is increased and heat transfer rate is improved.
摘要翻译：蒸发器被构造成使得用于流动冷水的热交换器管束设置在用于允许冷却介质的容器内部。当比较冷水流路中各个位置处的热交换器管的总截面积时，下游位置的总面积小于流路上游位置的总面积。因此，即使冷水和冷却介质之间的温差小，下游管中的冷水流速比上游管快，因此热通量增加，传热率为改进。

2. 发明授权

US07028762B2 Condenser for refrigerating machine 有权
公开(公告)号：US07028762B2
公开(公告)日：2006-04-18
申请号：US11078407
申请日：2005-03-14
申请人： Yoichiro Iritani , Akihiro Kawada , Yoshinori Shirakata , Wataru Seki , Koji Hirokawa
发明人： Yoichiro Iritani , Akihiro Kawada , Yoshinori Shirakata , Wataru Seki , Koji Hirokawa
IPC分类号： F28B1/00
CPC分类号： F28D7/1638 , F25B39/04 , F25B2339/0242 , F25B2339/047 , F28B1/02
摘要： This invention provides a condenser for a refrigerating machine which can improve the condensation characteristics by eliminating the accumulation of the condensed refrigerant in the condenser vessel. The condenser comprising the vessel 14 and a group of heat exchanger tubes 15 disposed in the vessel is used for condensing and liquefying the gaseous refrigerant by heat exchange between the gaseous refrigerant and cooling water circulating in the heat exchanger tubes. The condenser is constituted such that accumulated liquefied refrigerant is removed by forming one or a plurality of spaces in the area wherein the heat exchanger tubes are disposed.

3. 发明授权

US06655173B2 Evaporator for refrigerating machine and refrigeration apparatus 有权
公开(公告)号：US06655173B2
公开(公告)日：2003-12-02
申请号：US10169759
申请日：2002-07-19
申请人： Yoichiro Iritani , Akihiro Kawada , Yoshinori Shirakata , Wataru Seki , Koji Hirokawa
发明人： Yoichiro Iritani , Akihiro Kawada , Yoshinori Shirakata , Wataru Seki , Koji Hirokawa
IPC分类号： F25B3902
CPC分类号： F28D21/0017 , F25B1/053 , F25B39/02 , F25B2339/0242 , F28F9/005
摘要： An evaporator for a refrigerating system which prevents droplets of refrigerant from blowing upwards, and a refrigeration apparatus using thereof are provided. The evaporator for a refrigerating system includes a container into which the refrigerant is introduced, and heat exchanger tubes disposed in the container through which a cooled object flows. The evaporator further includes a prevention plate disposed above the heat exchanger tubes so that droplets of the refrigerant, which are blown upwards due to a boiling of the refrigerant, hit the prevention plate.

4. 发明授权

US06497115B1 Evaporator and refrigerator 有权
标题翻译：蒸发器和冰箱
公开(公告)号：US06497115B1
公开(公告)日：2002-12-24
申请号：US09910072
申请日：2001-07-23
申请人： Yoshinori Shirakata , Yoichiro Iritani , Koji Hirokawa , Akihiro Kawada , Wataru Seki , Sunao Aoki
发明人： Yoshinori Shirakata , Yoichiro Iritani , Koji Hirokawa , Akihiro Kawada , Wataru Seki , Sunao Aoki
IPC分类号： F25B3902
CPC分类号： F28D7/163 , F25B39/02 , F25B2339/0242 , F25B2500/01 , Y10S165/91
摘要： In an evaporator composed by providing plural heat-transfer pipes for flowing cold water in a container into which a refrigerant is introduced, the heat-transfer pipes are divided into plural pipe groups and the pipe groups are arranged in a zigzag pattern with intervals between each adjacent pipe groups. Bubbles which are generated around the heat-transfer pipes provided lower position, easily come to the surface of the refrigerant, and further, there are few bubbles which degrade the performance of the heat-transfer pipes positioned around the center of the pipe groups, preventing a fall in the heat transfer coefficient.
摘要翻译：在通过设置多个用于在导入制冷剂的容器中流动冷水的传热管构成的蒸发器中，传热管被分成多个管组，并且管组以Z字形图案排列，间隔在每个相邻管道组。在传热管周围产生的气泡位于较低的位置，容易进入制冷剂的表面，此外，几乎没有气泡破坏位于管组中心附近的传热管的性能，防止传热系数下降。

5. 发明申请

US20050150638A1 Condenser for refrigerating machine 有权
标题翻译：冷冻机冷凝器
公开(公告)号：US20050150638A1
公开(公告)日：2005-07-14
申请号：US11078407
申请日：2005-03-14
申请人： Yoichiro Iritani , Akihiro Kawada , Yoshinori Shirakata , Wataru Seki , Koji Hirokawa
发明人： Yoichiro Iritani , Akihiro Kawada , Yoshinori Shirakata , Wataru Seki , Koji Hirokawa
IPC分类号： F28F13/06 , F25B39/04 , F28B1/02 , F28D7/16 , F28F13/08 , F28B1/00 , F25B13/00
CPC分类号： F28D7/1638 , F25B39/04 , F25B2339/0242 , F25B2339/047 , F28B1/02
摘要： This invention provides a condenser for a refrigerating machine which can improve the condensation characteristics by eliminating the accumulation of the condensed refrigerant in the condenser vessel. The condenser comprising the vessel 14 and a group of heat exchanger tubes 15 disposed in the vessel is used for condensing and liquefying the gaseous refrigerant by heat exchange between the gaseous refrigerant and cooling water circulating in the heat exchanger tubes. The condenser is constituted such that accumulated liquefied refrigerant is removed by forming one or a plurality of spaces in the area wherein the heat exchanger tubes are disposed.
摘要翻译：本发明提供了一种用于冷冻机的冷凝器，其可以通过消除在冷凝器容器中冷凝的制冷剂的积聚来改善冷凝特性。包括容器14的冷凝器和设置在容器中的一组热交换器管15用于通过在热交换器管中循环的气态制冷剂和冷却水之间的热交换来冷凝和液化气态制冷剂。冷凝器构成为通过在其中设置热交换器管的区域中形成一个或多个空间来去除累积的液化制冷剂。

6. 发明授权

US06755238B1 Disintegrative core for high pressure casting, method for manufacturing the same, and method for extracting the same 失效
标题翻译：高压铸造用分解芯，其制造方法及其提取方法
公开(公告)号：US06755238B1
公开(公告)日：2004-06-29
申请号：US10019772
申请日：2002-05-09
申请人： Koji Hirokawa
发明人： Koji Hirokawa
IPC分类号： B22C102
CPC分类号： B22C1/00 , B22C9/105
摘要： Disclosed is a method for manufacturing a disintegrative core for use in high pressure casting. The disintegrative core can be applied where a light metal such as an aluminum alloy or magnesium alloy is subjected to high pressure casting, such as die casting or squeeze casting and is manufactured from a water-soluble salt which is high in latent heat and ranges, in melting point, from 280 to 520° C. and, in heat transfer coefficient (&kgr;), from 9.8×10−2 to 1.2×10 W/m·° C. The water-soluble salt, alone or in combination with a fine hard powder, is melted and solidified in a core mold. Alternatively, the melt is processed into a fine powder which is then molded in a core mold. The method can be applied for the manufacture of complex shapes of cores. Also, disclosed is a method for extracting such a core from a high pressure molded product.
摘要翻译：公开了用于制造用于高压铸造的崩解芯的方法。崩解芯可以应用于诸如铝合金或镁合金的轻金属经受诸如压铸或挤压铸造的高压铸造，并且由潜热和范围高的水溶性盐制成，熔点280〜520℃，传热系数（kappa）为9.8×10 -2〜1.2×10W / m℃。水溶性盐单独或与细硬粉末在芯模中熔化固化。或者，将熔体加工成细粉末，然后将其模制在芯模中。该方法可用于制造复杂形状的芯。此外，公开了一种从高压成型体中提取这种芯的方法。

7. 发明授权

US5725044A Casting method using a forming die 失效
标题翻译：使用成型模具的铸造方法
公开(公告)号：US5725044A
公开(公告)日：1998-03-10
申请号：US519170
申请日：1995-08-25
申请人： Koji Hirokawa
发明人： Koji Hirokawa
IPC分类号： B22D15/02 , B22D17/24 , B22D29/00 , B22C1/00
CPC分类号： B22D15/02 , B22D17/24 , B22D29/001 , F05C2201/021
摘要： A plastic forming die for formation of outer surface is set on the inner surface of a cavity of a die. The forming die has a forming die body in a square barrel shape, and there are a lot of through holes provided between mount surfaces and inner side surfaces of the forming die body. Grooves communicating with the through holes are provided in the mount surfaces. When a molten metal is injected into the cavity, the through holes of the forming die body form outwardly projecting portions of a cast product. The forming die is then melted to be removed from the cast product.
摘要翻译：用于形成外表面的塑料成型模具设置在模具的腔体的内表面上。成形模具具有方筒状的成形模体，在成形模具的安装面和内侧面之间设有大量通孔。与通孔连通的沟槽设置在安装面上。当熔融金属注入空腔时，成形模体的通孔形成铸造产品的向外突出的部分。然后将成型模具熔化以从铸造产品中除去。

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