Throttling valve as well as engine cooling system and vehicle using same

Abstract

The invention provides a throttling valve as well as an engine cooling system and a vehicle using the same, and belongs to the technical field of engine cooling systems. The throttling valve comprisesa valve body and a valve element movably assembled in an inner cavity of the valve body, the valve body is provided with a valve body outlet and a valve body inlet, a limiting structure used for limiting the valve element from leaving the inner cavity of the valve body is arranged at the valve body inlet, a degassing channel which is always in communication with the inner cavity of the valve bodyand a thermostat is arranged on the limiting structure, and the valve element is provided with a throttling position which is used for allowing the valve body outlet to be blocked through drive by liquid in an engine gas removing pipe when the pressure of the liquid in the engine gas removing pipe to the valve element reaches a set value and a degassing position at the valve body inlet. Accordingto the throttling valve as well as the engine cooling system and the vehicle using the same, the throttling and exhausting functions can be automatically realized, the heat loss of the engine starting state is reduced, the preheating time of the engine is shortened, the problem that the preheating time of the engine is too long due to unnecessary loss of heat is solved, and the throttling valve as well as the engine cooling system and the vehicle using the same are simple in structure, small in size, convenient to install and easy to realize.

Description

technical field [0001] The invention belongs to the technical field of engine cooling systems, and in particular relates to a throttle valve, an engine cooling system and a vehicle using the throttle valve. Background technique [0002] Heavy-duty vehicles are widely used in road transportation and large-scale equipment transportation due to their large load capacity and strong transportation capacity. The cooling pipeline system matched with the engine. At present, heavy-duty vehicles are equipped with an expansion tank system to improve the cooling performance of the vehicle. After the engine is started, the engine cooling system is in a small cycle working condition after the vehicle is installed with an expansion tank, such as figure 1 As shown, the coolant flows back into the coolant pump 6 through the drain port of the thermostat 4, and then flows out from the coolant pump 6 and flows back to the throttle 4 through the engine 5 to realize a small cycle. When the temper...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned problems in the prior art, the object of the present invention is to provide an engine cooling system to solve the problem of too long engine warm-up time caused by unnecessary loss of heat; in addition, the object of the present invention is to provide Throttle valves for engine cooling systems and vehicles using such engine cooling systems

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