SU1386725A1 - Cooling system for internal combustion engine - Google Patents

Description

(21) 4128466 / 25-06

(22) 10/4/86

. (46) 07.04.88. Bup. № 13

(71) Production Association Voroshilovgrad Diesel Locomotive Plant them. Oct of the Brno revolution

(72) V.A.Burnov and I.V.Ermolova

(53) 621.43-713 (088.8)

(56) Ministry of Railways, Locomotive M 62. M .: Transport, 1974, p. nineteen.

(54) COOLING SYSTEM OF INTERNAL COMBUSTION ENGINE

(57) The invention allows to increase the reliability of the system by enforcing.

body gas from the primary circuit fluid. The expansion tank (RB) 1 is included in the first circulation circuit between the radiator 3 and the suction inlet 5 of the circulation pump 4. The guiding device 14 is installed in the RB above the connection point of the suction inlet to it. With this implementation, the pumping of the main mass of the liquid occurs through the Republic of Belarus, which contributes to the effective removal of gas from the liquid. The installation of a guide vane allows the level of fluid in the RB to be reduced without the risk of air bubbles being sucked into the circulation circuit. 1 hp f-ly, 1 ill.

with

b 2

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11386725

The invention relates to mechanical engineering, in particular, to an engine-building, namely to liquid cooling systems of internal combustion engines with devices for removing air from a cooling liquid.

The purpose of the invention is to increase reliability by forcibly discharging gas from the primary fluid.

The drawing shows a schematic of an internal combustion engine cooling system.

In order to eliminate the leakage of air from the tank 1, while reducing the level

The engine cooling system of the internal coolant in it, above the mesnen combustion, contains two coolant circuits interconnected through the expansion tank 1. In the first circuit, the engine cooling jacket 2 20, the radiator 3, the expansion tank 1 and the circulating pump 4, the suction nozzle 5 of which is connected to the expansion

tank 1, and the discharge port 6 connect the gas from the liquid whose engine cooling to jacket 2. A cooler, 7 oils, an additional radiator 8 and a liquid pump 9 are included in the second circuit. The guide device 14 is installed at the intake of the connection of the suction nozzle 5 of the circulation pump 4. In the simplest case, the guide device 14 is a cone-shaped cap.

Thus, pumping the bulk of the liquid through the expansion tank helps to effectively

the guide vane in front of the suction port of the circulation pump reduces the level of liquid in the expansion tank without fig35

The heating pipe 10 of which is connected 30 k suction of air bubbles fe to the additional radiator 8, and to the cooler 7 of the oil. Second, the swarm contour communicates with the expansion

i tank 1 using two connecting pipelines 11 and 12, the first

I of which reports the lower part of the expansion tank 1 with the suction

I pipe 10 liquid pump 9, and

 the second - exit from the cooler 7 oil

 with the top of the expansion tank 40 1. The latter is made with a filler neck 13, in which a steam valve is installed.

The cooling system can be equipped with a guide device 14 installed in the expansion tank 1 above the connection point of the suction inlet 5 of the circulation pump 4 to it.

The cooling system of the internal combustion engine works as follows.

When the engine is running, a coolant circulates in both circuits, with all the primary circuit fluid and part of the secondary circuit fluid entering the expansion tank 1. Due to a significant reduction in flow rate, a large separation 45

50

55

Claims (2)

into the circuit, which increases the reliability and efficiency of the cooling system as a whole. Invention Formula .one. The engine cooling system of the internal combustion engine contains two coolant circuits, the first of which includes the engine cooling jacket, a radiator and a circulation pump equipped with a suction and discharge nozzles, and the second is an oil cooler, an additional radiator and a liquid pump. The contours are interconnected through the expansion tank, which is distinguished by the fact that, in order to increase reliability by forcibly removing gas from the liquid of the primary circuit, the expansion tank in for prison in the first circuit for circulating between the torus and vsasyvak CIM pipe circus l insulating the pump, 2. The system according to claim 1, characterized in that it is equipped with a guide device installed in the expansion tank above the connection point of the suction pump of the circulating pump to it. These gas and water densities and the increased plane of contact with the atmosphere, the gas through the filler neck 13 is vented to the atmosphere. Since the tank 1 is an enclosed space connected to the atmosphere only by the neck 13, through which the gas flows during the operation of the system only in one direction — from the tank to the outside, the water does not become saturated with air. In order to eliminate the leakage of air from the tank 1, while reducing the level coolant in it, over the gas between the fluid, The connection volume of the suction inlet 5 of the circulation pump 4 is fitted with a guide device 14. In the simplest case, the guide device 14 is a tapered cap. Thus, pumping the bulk of the liquid through the expansion tank helps to effectively the guide vane in front of the suction port of the circulation pump reduces the level of liquid in the expansion tank without fig35 30 k suction air bubbles 40 five 0 five into the circuit, which increases the reliability and efficiency of the cooling system as a whole. Invention Formula .one. The engine cooling system of the internal combustion engine contains two coolant circuits, the first of which includes the engine cooling jacket, the radiator and the circulation pump equipped with a suction and discharge nozzles, and the second is an oil cooler, an additional radiator and a liquid pump, and The circuits are interconnected through an expansion tank, which is distinguished by the fact that, in order to increase reliability by forcibly removing gas from the primary circuit fluid, the expansion tank ak included in the primary circuit circulating between the radiator and vsasyvak CIM pipe of the circulation pump, 2. The system according to claim 1, characterized in that it is provided with a guide device installed in the expansion tank above the connection point of the circulation pump to it.