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    • 5. 发明申请
    • Heat exchanger tube
    • 热交换器管
    • US20070056721A1
    • 2007-03-15
    • US11516199
    • 2006-09-06
    • Shoichiro UsuiKoichi HayashiTadahiro Goto
    • Shoichiro UsuiKoichi HayashiTadahiro Goto
    • F28F1/40
    • F28F3/025F02M26/11F02M26/32F28D7/1684F28D21/0003F28F1/40
    • A heat exchanger tube has an inner peripheral surface serving as an exhaust gas flow path with a flat cross-sectional shape. A thin structure is incorporated in the heat exchanger tube and has a substantially rectangular channel-shaped waveform in cross section. The corrugated fin structure has a curved surface forming waveform meandering with a predetermined wavelength in the lengthwise direction. The wave width of the channel-shaped waveform is H, the wavelength of the waveform meandering in the lengthwise direction is L and the amplitude of the waveform meandering in the lengthwise direction is A. The heat exchanger tube is formed so that H/L is set at 0.17 to 0.20 and the ration (G/H) of a gap G determined by H-A to H is set at −0.21 to 0.19.
    • 热交换器管具有作为具有平坦横截面形状的废气流动路径的内周面。 在热交换器管中并入有薄的结构,并具有大致矩形的通道形状的横截面波形。 波纹状散热片结构具有在长度方向上以预定波长曲折的曲面形成波形。 通道形波形的波宽为H,长度方向曲折的波形波长为L,长度方向曲线的波形振幅为A.导热管形成为H / L为 设定为0.17〜0.20,将由HA〜H确定的间隙G的比例(G / H)设定为-0.21〜0.19。