Chiller for water-cooled engine for vehicles

摘要

The present invention relates to a cooling apparatus for a water-cooled engine for a vehicle, and more particularly, to a cooling apparatus for a water-cooled engine for a vehicle for varying the cooling water temperature according to the rotational speed of the engine. By doing so, the engine performance is good and can be exerted.;The present invention connects the water jacket (4) and the radiator (5) formed in the cylinder block (2) and the cylinder head (3) of the engine (1) by a cooling water supply passage (6) and a cooling water recovery passage (7); At the same time, the passages 6 and 7 are connected to the bypass passage 8, and a water pump 9 is provided at the connection of the bypass passage 8 of the cooling water recovery passage 7 to supply the cooling water. The casing 10 to which the cover 11 is coupled to the rear of the bypass passage 8 branching point of the passage 6 is installed, so that the center of the casing 10 is partitioned by the partition wall 12 to form the first passage 13a and the first passage. The two passages 13b are separately formed, and the first and second thermostats 14a and 14b having different opening and closing temperatures are installed in the first passage 13a and the second passage 13b, and the casing ( A switching valve 15 is installed between the inlet of the 10 and the support plate 12 'formed in the partition 12, and an actuator (not shown) is installed in the shaft of the switching valve 15 to control the electronic control unit 16. By the control, the electronic control unit 16 is to input a signal such as the engine speed, the throttle valve opening.