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    • 42. 发明专利
    • BRPI0508715A
    • 2007-08-07
    • BRPI0508715
    • 2005-04-01
    • MODINE MFG CO
    • VALENSA JEROEN
    • F28F9/02F28D1/053F28F27/02
    • A fluid flow distribution device ( 10 ) is provided for use in a heat exchanger ( 12 ) having multiple heat exchange units ( 14 ) that receive a fluid flow ( 18 ) from an fluid inlet ( 16 ). The device includes a plurality of tortuous flow paths ( 31 ) to direct distributed portions of the fluid flow ( 18 ) from the inlet ( 16 ) to the heat exchange units ( 14 ). Each tortuous flow path ( 31 ) is defined by a pair of flow chamber plates ( 24,26 ), and an orifice plate ( 28 ) sandwiched between the flow chamber plates ( 24,26 ). Each tortuous flow path ( 31 ) includes a series ( 34 ) of orifices ( 36 ) extending through the orifice plate ( 28 ), a first pattern ( 38 ) of first flow chambers ( 40 ) formed in one of the flow chamber plates ( 24,26 ) and aligned with sequential pairs of the orifices ( 36 ), and a second pattern ( 42 ) of second flow chambers ( 44 ) formed in the other of the flow chamber plates ( 24,26 ) and offset with respect to the first pattern ( 38 ) and the pairs of orifices ( 36 ).