SU1390399A1 - Surge tank of liquid-type cooling system of internal combustion engine - Google Patents

Abstract

The invention makes it possible to increase reliability by improving the isolation of coolant from atmospheric air. The hydraulic lock, made in the form of a layer of liquid insulator 6, placed between the surface 7 of the coolant and the communication channel with the atmosphere, is provided with a gas-permeable and waterproof film 8 placed between the restricting grids 9 and 10. The latter are fixed between the layer of liquid insulator and the surface coolant. Expansion tank m. made in the form of two containers, the first of which contains restrictive grids, a gas-permeable and waterproof film, a layer of a liquid insulator and a channel 3, and a safety valve is installed in the second tank and there are connecting pipes for supplying and discharging coolant to it. By improving the isolation of atmospheric air from direct contact with the coolant and the addition of anti-corrosion additives to it, corrosion activity is reduced. 1 h. p, f-ly, 2 ill. (

Description

i The invention relates to machine-building, in particular, to a two-body building, 1 namely to cooling systems of an internal combustion engine with devices for protection against corrosion,

The purpose of the invention is to increase reliability by improving the insulation of: cooling fluid from atmospheric air.

I Fig. 1 shows an expander tank of a liquid-cooled system; The internal combustion engine with an I hydrolock placed in the tank above; surface of the cooling fluid; figure 2 - expansion tank, made; ny in the form of two containers, in one of; which is located hydrolock

The expansion tank of the liquid-cooling system of the internal combustion engine contains a pipe 1: a supply and a pipe 2 for coolant removal, a combined safety valve 3j installed in the upper part of the tank 4, a channel 5 for communication with the atmosphere and a hydraulic lock made in the form of a layer of liquid insulator 6, placed between the surface of the coolant 7 and the coolant 5. The seal is fitted with a gas-permeable and waterproof film 8 and at least two restrictive grilles 9 and 10, respectively. rhney and bottom ustanovlen- upon between the liquid insulator layer 6 and the surface 7 of the cooling liquid, wherein the gas permeability and the waterproof film 8 is placed between the restriction sheets 9 and 10.

The expansion tank can be made in the form of two containers 11 and 12, the first of which contains restrictive grids 9 and 10, a gas-permeable and waterproof film 8, a layer of liquid insulator 6 and a channel 5 for communication with the atmosphere5 and in the second container 12 there is a combined safety valve 3 and connected to it the supply pipe 1 and outlet 2 of the coolant.

The film 8 can be made of polymers and natural materials () with a thickness of 0.3-5 mm.

The expander 7 tank the CHCTei-tbi fluid bone-cooled engine of the internal combustion engine works as follows.

0

five

0 5 0 .with O

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five

A liquid insulator 6 is poured into the volume of the tank located above the gas-permeable and waterproof film 8, for example water with anti-corrosion additives made of oil products dissolved in it, which gradually seep through the film 8 and enter the cooling liquid,

When the coolant level in the expansion tank 4 rises, the air in the tank above the surface 7 cools the liquid through the gas-permeable and waterproof film B and the liquid layer of the insulator 6 to the atmosphere through the channel 5 to communicate with the atmosphere. In this case, the upper limiting grate 9 prevents the film 8 from buckling and breaking.

With a decrease in the level of the liquid in: the expansion tank 4, a vacuum is created, which sucks the air from the atmosphere through the layer of liquid insulator 6 and the film 8. The lower limiting grate 10 protects the film 8,

With the passage of atmospheric air through the layer of liquid insulator 6, a whole series of undesirable gases in the corrosive ratio in the air, especially oxygen, and various corrosive air components, such as acid, mechanical, etc., are absorbed in water. .

In addition to the intake of air from the atmosphere into the expansion tank, the supply of an anti-corrosion additive from the liquid insulator 6 to the cooling fluid is activated.

When an emergency raise or lower the liquid level in the expansion tank, for example, if coolant boils up in the engine cooling system or a sudden water leak from the cooling system, the combined safety valve 3 is activated.

Similarly, the action of the water seal, the design of which is shown in FIG ... However, with this design of the water seal, the usual oil anticorrosion scars are unsuitable.

Thus, by improving the insulation of the coolant from direct contact with the coolant and the addition of anticorrosion additives thereto, the corrosion activity of the coolant is reduced, which means that the destruction of the elements of the cooling system is reduced and its reliability is improved.

Claims (2)

1. Expansion tank of a liquid-cooled system, value an internal combustion engine that contains pipes for supplying and discharging coolant, a channel for communication with the atmosphere and a hydraulic lock made in the form of a layer of liquid insulator placed between the surface of the cooling liquid and the channel characterized in that for the purpose of raising reliability, it is provided with a gas-permeable and waterproof film and at least two restrictive grids installed between the layer of liquid insulator and the surface of the cooling fluid, and the gas-permeable and waterproof film is stretched between the restrictive grids. 2. Tank POP.1, characterized in that it is made in the form of two containers, in one of which the size: restrictive scinctum and waterproof film, layer of liquid insulator and channel for communication with the atmosphere, and supply and drain connections to the other cooling liquid. 2 L Sh u ////////)) ///// Fi &. 2