RU413U1 - Liquid cooling system - Google Patents

Abstract

A liquid cooling system, mainly in internal combustion engines, including a heat exchanger, for example a radiator, and an expansion tank, the cavity of which is divided by a partition into two chambers, the first of which is connected to the atmosphere, and the partition is installed vertically with a gap between it and the bottom of the tank, different the fact that the partition is made in the form of a tube, the upper end of which is connected through a hose to the radiator through an opening in the upper part of the tank.

Description

CMCTEviA Jii KOCffiOrO OHLMDSHIA

The utility model relates to liquid cooling systems, in PART 8. STRONG to closed cooling systems of internal combustion engines.

Known liquid cooling system for internal combustion engines, a device for compensating for volume changes that occur ;; due to thermal expansion. The system is characterized in that the compensation device is formed only by a compensation tank (expansion beam), which contains a liquid cavity, is connected to a cooling cooling system and limited by an elastic membrane (application FRG 1 (G 3712686, class / 01р 11/02 11/18, publ. 03.11.88).

/ 1 A liquid closed automobile engine cooling system is known that contained an expansion tank, which is connected through a hose to a radiator. The expansion tank is designed to compensate for changes in volume about the cooling liquid, steam condensation, as well as separation and removal of air, which reduces the operation of the cooling system. The expansion tank has an odd cavity and a fitting located at the bottom for connecting to the hose. The internal cavity of the tank through the hole in the cork connects to the atmosphere (Klennikov V.M. et al. Category B car, Moscow, Transport, 1985, pp. 31-33, Fig. 17; Delhi {ovsky S.F. et al. Arrangement and operation of automobiles Zhiguli and Moskvich, Moscow, Dosaaf USSR, 1985, p. 33-35, fig. 18; 1 shkhaylovsky E.V. Car arrangement, Moscow, Mechanical Engineering, I98I, p. 65-66, fig. 44 ) , the known device does not allow to obtain a sufficiently deep vacuum and, therefore, more efficient to remove air, because the maximum vacuum is determined by the height of the coolant column between the minimum level in the expansion

HQ: 01 11/02, 3/20, II / I8, 7/14.

-i the reservoir and the lower edge of the hose connecting it to the radiator. With the lower location of the fitting in the expansion tank, it is almost impossible to provide a significant difference in height.

Closest to the claimed system is an open liquid automobile engine cooling system implemented in a pzhvarochny boiler design, containing a brewing vessel and a steam jacket with a safety device, including a valve of closed liquid automobile engine cooling systems and an expansion tank connected to it by means of a fitting. The cavity of the expansion tank is divided by a partition into two ka, measures. Odea out of the atmosphere through the hole. The partition is installed vertically with the formation of a gap between it and the bottom of the expansion tank.

The fitting is located in one of (AS No. I6E0099, class A 47u 27/17, authors B.K. Tikhonov and B.V. Yukov, publ.L7.10.88). The expansion tank calendars act independently according to the principle of coexisting vessels. The liquid levels in the NSH vary depending on the pressure in the steam jacket of the boiler. At the initial moment, the pressure in the steam chopper is equal to atmospheric and the liquid levels in both chambers are the same. When the pressure in the steam jacket increases above atmospheric pressure (heating mode), air through the nozzle squeezes the liquid out of the one cakura into another, pumps it through the liquid column and is vented to the atmosphere. The liquid vapor condenses, therefore, the level of sludge in the privateer, connected to the atmosphere, gradually improves. When the pressure in the steam jacket decreases below atmospheric pressure (cooling mode), the liquid in Kajviepe moves in the opposite direction. In the chamber associated with the atmosphere, its level decreases to the lower edge of the partition, therefore, a vacuum equal to the height of the vertical partition of the tank is automatically set in the steam jacket.

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- Part of the steam from the steam engine of the boiler through the steam valve slips into the expansion beam. For condensation of steam in the tank there is a relatively large initial amount of liquid, which provides condensation of steam within -b hours of a continuous boiler. ALA condensate collection there is an additional volume, which is approximately twice as large as the volume occupied by the liquid. In order to obtain the maximum resolution in the steam jacket of the boiler, the vertical partition of the smtgen towards the cavity with a fitting. The well-known design does not provide negative pressure below 200 mm of the heat carrier column.

The proposed utility model is aimed at developing such a cooling system, which allows one to create rarefaction below 200 mm of the column with insignificant volumes of steam engine mixture, for example, in closed cooling systems of automobile engines.

In the idle mode, it melts: its cold engine vacuum in the cooling system more than doubles, smudges of antifreeze through well-being decrease, cleverly 11a. The length of the polyethylene connecting hose is about 600 mm, the design and manufacturing technology of the expansion tank is simplified due to the lack of a fitting and a hose connection not to it.

The utility model lies in the fact that in a liquid cooling system, mainly in an internal combustion engine, including a heat exchanger, for example, a radiator, and an expansion tank, the cavity of which is divided by a partition into two chambers, the first of which is connected to the atmosphere, the partition is installed vertically with By forming a gap between the bottom and the bottom of the beam, it is made in the form of a tube, the upper end of which is connected to a radiator through a hole in the upper part of the beam.

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. -f The completion of the partition in the form of a tube, the upper end of which is through the upper hole: the tank parts are connected to the radiator via a hose, in order to create a vacuum below 200 gzh of the cooling liquid column (coolant) while simplifying the design and manufacturing technology of the expansion tank, etc. to. there is no need to seal the partition along the perimeter of the interface with the housing.

Currently, from the scientific, technical and patent literature, the liquid cooling system in the claimed combination of features is not known.

In Fig. L, a liquid cooling system is presented, in o5ig.2 - the principle of operation of the system before the first engine start (cold engine), in Fig.Z - the principle of operation of the system after the engine is started (during heating.), In Fig.4 - principle of operation system during the final heating of the liquid, figure 5 - the principle of the system after the engine stops (after cooling).

The liquid cooling system of an automobile engine contains a radiator I, a radiator neck with a stopper 2, a slag 3, an expansion tank 4, the cavity of which is divided by a tube 5 into two tubes, the first of which is connected to the atmosphere through the hole 6, the upper end of the tube 5 through a hole 7, made of the upper part of the tank 4, is connected with the help of the hose 3 with radiator I.

The cooling system works as follows.

Before the first engine start, the pressure in the cooling system and in the cavity of the expansion tank is different to atmospheric, therefore, the levels

the liquid in the tank and tube are the same and equal to the height L (figure 2). After

engine start (heating mode) pressure in the cooling system

- / through the hole is given in a, atmosphere. At the same time, the top of the liquid in the expansion tank increases very slightly. Significantly, its height remains approximately equal to one another. During the final warm-up of the engine C (operating mode) due to expansion, the coolant completely fills the swirl tube and through its lower end overflows into the cavity of the spray tank. Liquid level in the spray /; the tank increases to a height (Fig. 4). After stop

of the engine (cooling mode), the specific volume of the cooling liquid is reduced and the pressure in the cooling system is lower than the atmospheric pressure, therefore, the cooling liquid from the cavity of the expansion tank is aspirated into the radiator through the tube. In the cooling system, a vacuum is automatically set equal to the height and, the limiting value of which corresponds to the length of the vertical tube ridge (Fig.). When the engine is restarted, the cycle repeats.

Ka ka. Engineering of disciplines of the Ural Institute of the National Economy, a detailed design of the liquid cooling system was completed. A utility model is presented in FIG. 1-5. The system was manufactured and tested on a GA3 24-01 car.

The expansion tank was made of rubber and had a mold, a cylinder, a diameter of 100 mm, a height of 400 barrels and a volume of 3.14 dm. Inside the beam, a vertical tube of polyethylene with a cross section of 20 x 13 mm (a portion of the standard connecting slurry) and a height of 450 mm was installed, the upper end of which went out through the hole in the lid and connected to the radiator neck fitting.

The proposed utility model, in comparison with the adherent liquid cooling systems, has the following advantages:

In the idle cold engine mode, the vacuum in the cooling system is more than doubled. For this reason, leaks of altifreeze through leaks are reduced (for example, droplets disappear from under the puncture hole on the right side of the head of the engine block;

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smart1: the length of the polyethylene connecting hose is approximately 600 mi;

simplifies the design and manufacturing technology of the expansion tank, due to the lack of a fitting and docking of the sludge on it.

Re-account of the economic effect

Nowadays, production facilities, whether gas, VAZ, AZZH and other issues are produced in cars, cars, which are equipped with a closed liquid system: engine cooling. The cooling systems of various brands of e-cars m8J {are unified and contain the same tank for all. The production of such cars is sinking one million IG. y to per year.

expansion tank through a polyethylene hose o; with a cross section of 20 x 13 mm is connected to the radiator neck. With the existing design, there is a significant height difference between the connecting pipes of the 1/1 AND expansion tank and radiator and two turns are formed with about 90 and 180 °. To ensure the smoothness of the kinks of the hose, its length is Bynu; it kdenno increases and reaches 1-1.2 m (depending on the brand of an automobile). The cost of one running meter of a hose exceeds 200 rubles (in old wholesalers

The proposed cooling system, in which the partition is made in the form of a tube, the upper end of which through a hole at the top hour: and the tank is connected to a radiator by a hose, allows to reduce the length of the gal. 0.5-0, m.

akik-obra-h) 1l,;: kche | -ki n gekl due to contraction of the race of the polyethylene hose, leave:

200 X 0.5 X 10 - 100 million rubles. per year, where 200rub. - the cost of I running m. polyethylene hose;

- /

10 - the volume of automobile production per year, the Grorector for the unlearned work of the Ural School of Artists, about (Auto Auto Mr. N. Filippov V. N. Tikhonov

Claims (1)

A liquid cooling system, mainly in internal combustion engines, including a heat exchanger, for example a radiator, and an expansion tank, the cavity of which is divided by a partition into two chambers, the first of which is connected to the atmosphere, and the partition is installed vertically with a gap between it and the bottom of the tank, different the fact that the partition is made in the form of a tube, the upper end of which is connected through a hose to the radiator through an opening in the upper part of the tank.