卡特彼勒CAT柴油发动机冷却系统修理技术

卡特彼勒CAT柴油发动机冷却系统修理技术

Caterpillar repair technology of CAT diesel engine cooling system

卡特彼勒CAT柴油发动机冷却液通过一个与散热器或热交换器相接的弯管进入水泵。冷却液流在水泵出口分路，一部分达到中冷器，而大部分通过滑油冷却器。

Caterpillar CAT diesel engine cooling fluid through a connected with a radiator or heat exchanger pipe into the water pump. Coolant flow in the pump outlet branch, part in the cold, and most of the oil cooler.

注意：水泵出口有一开口以便可以将一远距离泵接到本系统，如果卡特彼勒柴油机上的水泵出故障，可以使用远距离泵。

Note: export pump with an opening so that it can be a long distance pump to the system, if the pump out the Caterpillar diesel engine fault, you can use long distance pump.

送到中冷器的冷却液通过中冷器芯体，然后通过弯管送进机体尾部V型中心附近的通道里。送到滑油冷却器的冷却液通过滑油冷却器，然后流进右尾部气缸的水腔里。较冷和较热的冷却液混合，然后通过与所有气缸水腔相接的分配支管进入到机体两边，主分配支管刚好装在主轴承油沟上面。

Sent to the cooling liquid cooling through the intercooler core, and then through the pipe to the near body tail V central channel. To the coolant oil cooler oil cooler, water chamber and then flows into the right tail of the cylinder. Cold and hot coolant mixing, and then through the water with all the cylinder cavity connected with the distribution manifold into the body on both sides, the main distribution pipe is installed above the spindle bearing oil groove.

卡特彼勒CAT柴油发动机冷却液通过水腔，绕着缸套从底流向上，在缸套的顶部，温度最高，水腔做得较少。这狭层(较少面积)使冷却液流得较快，冷却缸套效果更好。冷却液从缸套顶部流进缸头，缸头把冷却液送到温度最高的周围部位进行冷却。然后，冷却液流到缸头顶部，从支管(每个缸头一个)流出进入每排缸头的水支管(6)，冷却液通过支管流到温度调节器(恒温器)壳体。

Caterpillar CAT diesel engine cooling fluid through the water jacket around the cylinder, from the bottom up, the highest temperature in the cylinder, top, water cavity are less. This narrow layer (small area) of the coolant flow faster, better cooling effect of cylinder liner. The cooling liquid from flowing into the cylinder at the top of the cylinder head, cylinder head coolant to the surrounding parts of the highest temperature of cooling. Then, the coolant flow to the cylinder head at the top, from the side (each cylinder head a) flowing into each cylinder head water pipe (6), the cooling liquid flow through the pipe to the temperature regulator (thermostat).

调节器壳体(8)有上流和下流，且使用四个温度调节器器，四个温度调节器的感觉温胞位于壳体下部分的冷却液里。调节器开启前，冷的冷却液通过壳体下部和旁通伐管线回到水泵进口。当冷却液的温度上升到足以使调节开始动作时，流进旁通伐管线的冷却液停止，冷却液通过出口到达散热器或交换器。

Regulator housing (8) with upflow and downflow, and using four temperature regulator device, four temperature regulator feeling warm cell located in the housing part of cooling liquid. The regulator before the open, cold coolant through the lower part of the casing and the bypass of pipeline back to the pump inlet. When the temperature of the cooling liquid rise enough to make the adjustment to the action, into the coolant bypass cutting line stop, coolant through the radiator or heat exchanger outlet at.

总的系统冷却容量取决于散热器或热交换器的尺寸。使用50%的纯水和50%的永久防冻剂的混合体，然后增加3~6%的浓缩抗腐蚀剂。

Cooling system capacity is determined the total for the radiator or heat exchanger size. A mixture of 50% water and 50% permanent antifreeze, and then increase the 3~6% concentration of corrosion inhibitor.