RU34901U1 - LIQUID COOLING SYSTEM FOR INTERNAL COMBUSTION ENGINE - Google Patents

Description

The liquid cooling system of an internal combustion engine

The technical solution relates to vehicles, namely to power plants, and can be used in the construction of a liquid cooling system of an internal combustion engine.

A known liquid cooling system of an internal combustion engine, comprising a water radiator having an input and output manifolds, a steam inlet valve, an expansion tank, a water jacket of the internal combustion engine, a circulating pump associated with the output manifold.

In such a system, the input and output collectors are located on

-the sides of the radiator, and the expansion tank is mounted on

upper side of the radiator (V.V. Burkov, A.I. Indeykin

“Automotive tractor radiators. Reference manual. L:

"Engineering, 1978, p. 22, table 1.3, fig. PSS-4).

Such a system is compact, but it is not reliable enough, since during its operation it is possible to reduce the static pressure of the cooling fluid below the critical value at the inlet of the circulation pump. As a result of this, cavitation of the coolant may occur in the cooling system, leading to a decrease in the efficiency of liquid cooling of the engines.

IPC at 60 to 11 / 02.11 / 04

A proton is a liquid cooling system for an internal combustion engine containing a water jacket for an internal combustion engine, an expansion tank, steam and KONffleHcauMOHHbie tubes, a water radiator, on the upper side of which there is an inlet manifold connected to a steam-air valve, and an outlet manifold on the bottom associated with the Shch1rk pump. (3. V. Burkov, A.I. Indeykin “Automotive tractor radiators)). Reference manual. L: “Engineering, 1978, p. 23, continuation of table 1.3, fig. PRR-1).

The presence of a compensating tube in such a system allows the necessary static pressure at the inlet of the circulating pump IL to be maintained thereby eliminating the occurrence of cavitation; However, such a system, without increasing the size, does not allow mezzda to be placed in a water radiator and engine by other components of the cooling system, for example, oil radiators operating in the reverse flow of coolant coming from the fan.

The problem which is solved by: curtains is the creation of a system for low-temperature cooling of an external combustion engine, G10zvolya1osh; it should be placed without other dimensions for the water radiator and the engine with other components of the oh.11-, kdeniya system, for example, oil radiators with

In a liquid cooling system of an internal combustion engine, comprising a water jacket of an internal combustion engine, an expansion tank, steam and expansion tubes, a water radiator, on the upper side of which an inlet manifold connected to a steam-air valve is installed, and on the lower side there is an outlet manifold associated with a circulation with a pump, the authors propose that the expansion tank be made in the form of two containers, one of which is combined with one of the input collectors and forming conductive volume, and another - arranged separately and bind its steam-water-jacketed tube with an internal combustion engine, and the compensating tube with a circulation pump, with both said container positioned at the same level and to connect the steam-air pipe between them.

The capacity of the expansion tank combined with the input manifold can be made 2.5 - 3.5 times the volume of the tank located separately.

The proposed liquid cooling system of the internal combustion engine has a compact configuration due to the expansion tank in the form of two tanks and the execution of the tank, combined with the input manifold located on the upper side of the water radiator, of a larger volume than a separate tank. This allows you to place other components of the cooling system between the engine and the water radiator without increasing the dimensions,

for example, oil radiators that operate on the return flow of cooling air. At the same time, the connection of the separately located capacity of the expansion tank through the compensation tube with the inlet of the circulation pump allows eliminating the occurrence of cavitation of the coolant and ensuring effective engine cooling.

When conducting searches on the sources of patent and scientific and technical information, no solution was found containing the totality of the proposed features, which allows us to conclude that the claimed technical solution meets the criterion of "novelty.

The industrial applicability of the proposed solution is visible from the description.

The proposed technical solution is illustrated by the drawing.

In FIG. shows a diagram of a liquid cooling system of an internal combustion engine.

The liquid cooling system of the internal combustion engine contains a water jacket 1 of the internal combustion engine, a water radiator 2, on the upper side of which there is an inlet manifold 3 connected to the steam-air valve 4, and on the lower side there is an output coil 5 connected to the circulation pump 6, the expansion tank is made in the form of two tanks, one of which is combined with the inlet manifold 3 and forms a total volume with it, and the other tank 7 is located separately and is connected by a steam-air tube 8 to a water tank head 1 of the internal combustion engine and

a compensation tube 9 with a circulation pump 6, while both of the mentioned containers (the tank combined with the inlet manifold 3 and the tank 7) are located at the same level and are connected by the steam-air pipe 10 to each other. In addition, the tank, combined with the input manifold 3, has a volume that is 3 times larger than the volume of the tank 7.

In FIG. shows the level of oxidizing liquid 11, the arrangement of the oil cooler 12 and fan 13 is schematically shown.

The proposed system of liquid cooling dvigagelya internal work is as follows.

The system is filled with coolant 11 to a predetermined level in a container aligned with the inlet manifold 3. At the same time, the same level of cooling liquid 11 is maintained in the container combined with the inlet manifold 3 and the reservoir 7 with the vapor-air tube 10 and the air volume necessary for the temperature remains expansion of the cooling:) fluid 11. During operation of the internal combustion engine (not shown in FIG.), a vacuum is created in the cooling system at the inlet to the circulation pump 6, which is compensated by the static pressure the cooling fluid 11 located in the compensation tube 9, forming with the steam-air tube 8 a single compensation loop. During operation, steam-air plugs are formed in the cooling system, which are removed through the steam-air tubes 8 and 10 into a container combined with an inlet manifold 3 and a container 7, and when a given

the pressure in these containers, the vapor-air plugs through the steam-air valve 4 are thrown out.

Thus, the proposed liquid cooling system of the internal combustion engine provides efficient liquid cooling and allows to place other components of the cooling system between the water radiator and the engine, for example, oil radiators operating on the return flow of cooling water and its air supplied from the fan.

Claims (2)

1. The liquid cooling system of an internal combustion engine, comprising a water jacket of the internal combustion engine, an expansion tank, steam and expansion tubes, a water radiator, on the upper side of which an inlet manifold connected to the steam-air valve is installed, and on the lower side there is an outlet manifold associated with circulation pump, characterized in that the expansion tank is made in the form of two containers, one of which is made combined with the input manifold and forming with it the total volume, and the other is located separately and connected by a steam-air tube to the water jacket of the internal combustion engine, and a compensation tube to a circulation pump, while both of these tanks are located at the same level and are connected by a steam-air tube. 2. The liquid cooling system of an internal combustion engine according to claim 1, characterized in that the capacity of the expansion tank combined with the inlet manifold is 2.5-3.5 times larger than the volume of the tank located separately.