| 摘要 |
The invention relates to an apparatus (10) for cooling an internal combustion engine (11), preferably a 4-cylinder in-line engine, having coolant connections (13, 13', 14, 14'; 17, 17'-24, 24') to a cooling loop, the coolant connections being connected to at least one cooling jacket region (12', 12'', 12''') of the engine (11). The invention provides that as the coolant connections, a group of inflow lines (17-24) and outflow lines (17'-24'), paired with one another, is provided, and each pair of inflow and outflow lines, because of its respective flow direction, defines a flow path, and each cylinder (15, 15', 15'', 15''') is assigned at least one flow path supplying it. The flow directions of these flow paths extend transversely to the longitudinal direction of the crankshaft defined by the in-line arrangement of individual cylinders (15, 15, 15'', 15'''). A further group of inflow and outflow lines (13, 13'; 14, 14') is disposed longitudinally to the longitudinal direction of the crankshaft. Because additionally the inflow and outflow lines disposed transversely thereto each have metering bores, by means of a coolant delivery to each cylinder that is adaptable via these metering bores, a thermal cylinder synchronization for each operating point is attainable.
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