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04/17/08 | 28 views | #20080087408 | Prev - Next | USPTO Class 165 | About this Page  165 rss/xml feed  monitor keywords

Multi -channeled flat tube and heat exchanger

USPTO Application #: 20080087408
Title: Multi -channeled flat tube and heat exchanger
Abstract: . to ≦ a ⁢ 3 2 ti - 2 a · ti · Li There is provided a multi-channeled flat tube that includes a flat outer tube and a plurality of partitions that divide the inside of the outer tube into a plurality of channels. Each partition in the multi-channeled flat tube has a mountain-shaped cross-sectional form composed of two sides, each of the two sides has a thickness ti and a length a, the partitions are disposed so that a face-to-face distance between adjacent partitions along inner surfaces of the outer tube is Li, and a thickness to of the outer tube satisfies a condition below. By selecting an appropriate pressure when expanding the multi-channeled flat tube, it is possible to prevent deformation of the tube outer surface into a wavy or undulating pattern (end of abstract)
Agent: Blank Rome LLP - Washington, DC, US
Inventors: Takahide Maezawa, Yasuhiro Kawatsu
USPTO Applicaton #: 20080087408 - Class: 165151000 (USPTO)
Related Patent Categories: Heat Exchange, Radiator Core Type, Side-by-side Tubes Traversing Fin Means

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