SUPERCHARGE AIR COOLING UNIT
    4.
    发明公开

    公开(公告)号:EP3392590A1

    公开(公告)日:2018-10-24

    申请号:EP18159957.2

    申请日:2018-03-05

    摘要: A supercharge air cooling unit (X1) includes an evaporator portion (5a) in which heat exchange is conducted between supercharging air to be supplied from a supercharger (1) to an engine (2) and a working medium to evaporate the working medium; an expander (63) into which the working medium evaporated in the evaporator portion (5a) flows; a motive power recovery device (64) which recovers motive power of the expander; and a gas cooler portion (5b) in which heat exchange is conducted between the supercharging air cooled by the evaporator portion (5a) and a cooling medium to further cool the supercharging air, in which forming a flow path of the supercharging air in the evaporator portion (5a) to have a width larger than a width of a flow path of the supercharging air in the gas cooler portion (5b) results in forming a stepped portion (322b) in a flow path (S2) of the supercharging air in the evaporator portion (5a), and the evaporator portion (5a) is configured such that a flow rate of the working medium passing through in a first region (322c) expanded by the stepped portion (322b) is smaller than a flow rate of the working medium passing through in a second region (322d) in the evaporator portion (5a).