Cooling system matched with hydrodynamic retarder

Abstract

The invention discloses a cooling system matched with a hydrodynamic retarder. The cooling system comprises an expansion water tank, a radiator, a coolant pipeline penetrating through an engine, and the retarder. An outlet of the expansion water tank communicates with the coolant pipeline. An outlet of the radiator pumps a coolant into the coolant pipeline of the engine through a water pump. Through an auxiliary box radiator, the coolant enters the retarder after flowing out of the engine. An outlet of the retarder communicates with the water pump of the main radiator through an electronic thermostat. Under combined control of the auxiliary radiator of the cooling system, an electric fan of the auxiliary radiator and the retarder, the problem that when the wax type thermostat is not opened in time, the non-cooling coolant of the small cycle part participates in the heat exchange cycle of the retarder is solved effectively, the cooling system is designed in a water inlet pipeline of the retarder, the effect that the auxiliary radiator always conducts heat dissipation when the retarder works can be ensured, and through the control over the electric fan of the auxiliary radiator by the retarder, the effect that the auxiliary radiator is always in the best heat dissipation state when the retarder works.

Description

[0001] 【Technical field】 [0002] The invention relates to a cooling system matched with a hydraulic retarder. [0003] 【Background technique】 [0004] With the widespread use of the retarder 9 on medium and heavy-duty commercial vehicles, wide-body vehicles, and passenger cars, more and more attention has been paid to the matching effect of the retarder 9 on the entire vehicle. The working principle of the retarder 9 is to convert the kinetic energy of the whole vehicle into the heat energy of the liquid working medium inside the retarder 9, and then exchange heat with the coolant of the vehicle cooling system through the heat exchanger on the retarder 9, and the The vehicle cooling system dissipates the heat. The continuous braking power of the retarder 9 is between 200kW and 300kW, and its maximum braking power can reach 500kW. These braking powers are finally converted into heat energy and dissipated by the vehicle cooling system. If the heat cannot be cooled in time If t...

AI Technical Summary

Problems solved by technology

The continuous braking power of the retarder 9 is between 200kW and 300kW, and its maximum braking power can reach 500kW. These braking powers are finally converted into heat energy and dissipated by the vehicle cooling system. If the heat cannot be cooled in time If the system is taken away, the working temperature of the retarder 9 will reach its protection value and quit working, which will affect the use effect of the retarder

Therefore, the whole vehicle matching the retarder needs to increase the heat dissipation power of the cooling system, but due to the limitation of the space of the whole vehicle, it is difficult to effectively improve the heat dissipation capacity of the whole vehicle under the original structure state

Images