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11. 发明授权

US06216776B1 Heat exchanger 有权
标题翻译：热交换器
公开(公告)号：US06216776B1
公开(公告)日：2001-04-17
申请号：US09245826
申请日：1999-02-05
申请人： Osamu Kobayashi , Ken Yamamoto , Yoshiyuki Yamauchi , Kazuhiro Mitsukawa
发明人： Osamu Kobayashi , Ken Yamamoto , Yoshiyuki Yamauchi , Kazuhiro Mitsukawa
IPC分类号： F28F904
CPC分类号： F28D1/05383 , F28D1/05391 , F28D2021/0073 , F28F1/022 , F28F9/0212 , F28F9/0214 , F28F9/0224 , F28F9/0246 , F28F9/0251 , F28F9/0282 , F28F2255/08 , F28F2255/16 , F28F2265/16
摘要： A heat exchanger has plural flat tubes through which refrigerant flows, and a pair of header tanks disposed on each longitudinal ends of the flat tubes. Each of the flat tubes has a flow passage portion having plural flow passages through which refrigerant flows, and a non-flow passage portion disposed on both sides of the flow passage portion, having at least one non-flow passage through which no refrigerant flows. The flow passage portion is inserted into the header tank so that the flow passages communicate with the header tank, and the non-flow passage portion is exposed outside the header tank. Each of the flow passages has a circular-shaped cross-section while the non-flow passage has a polygonal-shaped cross-section, so that a wall thickness of the non-flow passage is made thinner than that of the flow passages. Therefore, weight of the flat tube is decreased, while sufficient strength thereof is maintained. On the other hand, the header tank has an inner partition wall for partitioning the header tank into first and second tank passages having an oval-shaped cross-section, so that the header tank has high pressure resistance.
摘要翻译：热交换器具有制冷剂流过的多个扁平管，以及设置在扁平管的每个纵向端上的一对集管箱。每个扁平管具有流动通道部分，其具有多个制冷剂流动的流动通道，以及设置在流动通道部分两侧的非流动通道部分，其具有至少一个没有制冷剂流过的非流动通道。流路部分插入集水箱，使得流路与集水箱连通，并且非流动通道部分暴露在集水箱外部。每个流动通道具有圆形横截面，而非流动通道具有多边形横截面，使得非流动通道的壁厚比流动通道的壁厚更薄。因此，扁平管的重量降低，同时保持其足够的强度。另一方面，集水箱具有用于将集水箱分隔成具有椭圆形横截面的第一和第二箱通道的内分隔壁，使得集水箱具有高耐压性。

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