Device and method for cooling and preheating
    1.
    发明授权
    Device and method for cooling and preheating 有权
    冷却和预热装置及方法

    公开(公告)号:US06196168B1

    公开(公告)日:2001-03-06

    申请号:US09068815

    申请日:1998-08-13

    IPC分类号: F01P320

    摘要: The invention concerns a device and method for cooling and preheating, especially of transmission fluid, of an internal combustion engine, with an equalization tank, with at least one radiator, which can be connected by means of an engine thermostat when a predetermined temperature is reached in the cooling loop, and with a water/oil heat exchanger. It is prescribed according to the invention that the forward stream (1) of a single water/oil heat exchanger (5) be branched off in the heating phase by means of a valve unit (3) essentially from the main cooling loop (12) of the internal combustion engine (17) and that its forward stream (1) in the cooling phase be taken by means of the same valve unit (3) essentially in the coolant side stream (13) from the low-temperature region (14) of the radiator (4) or a separate low-temperature cooler (14a) connected in the side stream after radiator (4, 4a). The method proposes that the forward stream (1) of the water/oil heat exchanger (5) be taken in the heating phase essentially from the main coolant stream (12) not flowing through the radiator (4), that switching to cooling operation occur at a temperature lying somewhat below the switch point of the engine main thermostat (9) and the forward stream (1) of the water/oil heat exchanger (5) in cooling operation be branched off essentially from the low-temperature region (14) of radiator (4), or from a low-temperature cooler (14a) additionally connected in the side stream after radiator (4, 4a).

    摘要翻译: 本发明涉及一种用于具有均衡罐的内燃机的冷却和预热特别是传输流体的装置和方法,所述均衡罐具有至少一个散热器,当至少达到一个散热器时,可以通过发动机恒温器在达到预定温度时连接 在冷却回路中,以及一个水/油热交换器。 根据本发明规定,单个水/油热交换器(5)的前进流(1)通过主要由主冷却回路(12)的阀单元(3)在加热阶段分支, ,并且其冷却阶段中的其前进流(1)基本上在来自低温区域(14)的冷却剂侧流(13)中通过相同的阀单元(3)获取, 的散热器(4)或连接在散热器(4,4a)之后的侧流中的单独的低温冷却器(14a)。 该方法提出,水/油热交换器(5)的前进流(1)基本上从未流过散热器(4)的主冷却剂流(12)进入加热阶段,发生切换到冷却操作 在冷却运转中,位于发动机主恒温器(9)的切换点和水/油热交换器(5)的前进流(1)的温度基本上从低温区域(14)分支出来, 的散热器(4),或者来自另外连接在散热器(4,4a)之后的侧流中的低温冷却器(14a)。