RU202201U1 - AIRFLOW INTENSITY CONTROL DEVICE IN THE AIR TRACT OF THE COOLING SYSTEM OF THE ENGINE OF A MILITARY TRACKED VEHICLE - Google Patents

Abstract

The utility model relates to cooling systems for diesel engines of military tracked vehicles, namely, devices for controlling the intensity of the air flow in the air path of the engine cooling system of a military tracked vehicle. The technical result consists in the use of automated control of the shutter drive of the engine cooling system while maintaining the possibility of manual control, in providing the possibility the operation of the shutters of the engine cooling system together with the collective protection system when it is triggered, in the use of remote control of the operation modes of the fan of the engine cooling system of a military tracked vehicle when the fan is operated in manual mode in reducing the load on the on-board network of a military tracked vehicle due to the use of the engine air system to control the shutters of its cooling system and higher the reliability of the operation of the engine of a military tracked vehicle. The technical result is achieved by the fact that, in contrast to the prototype device, the following elements are excluded from the design of the proposed device: variator; drive shaft; driven shaft; angular speed sensor of the fan drive shaft; an electric motor and additionally installed cardan drives, an electric pneumatic valve for controlling a pneumatic cylinder, consisting of a main and a drain valve, an executive multi-position pneumatic cylinder with a return spring and an inductive sensor for controlling piston movement, a control panel for fan operation modes with an information display and a transceiver device, an electromagnetic fuel control valve with a transceiver device , a pneumatic cylinder for turning off the fuel supply, a fuel pump rail position sensor, a device for moving the fan drive gear lever, consisting of a fan drive gear lever, a fan drive gear lever lock, two electric motors with cables, a fan drive gear lever carriage, a horizontal guide, a frame consisting of two plates, fastened by four telescopic racks, with two servocylinders, a transceiver a fan drive gear change lever, a fan drive gear lever position sensor, a high-pressure fuel pump and two compressed air cylinders of the military tracked vehicle air system are also involved in the operation of the device.

Description

The utility model relates to cooling systems for diesel engines of military tracked vehicles, namely, devices for controlling the intensity of air flow in the air path of the engine cooling system of a military tracked vehicle.

A known method of controlling the intensity of the air flow in the air path of the engine cooling system of the T-72B tank, creating a flow of cooling air through oil and water radiators, indicated in the sources [1, 2], consisting in performing the following sequence of operations:

- when starting to move, make sure that the fan drive gear selector lever is not set to the "O" position corresponding to the switched off position of the fan by inspecting the two OHL lamps burning. LIQUID / VENT, on the remote control of signal lamps, warning that the fan is off and it is prohibited to start moving;

- if it is necessary to switch the fan speed, stop the engine, open the roof over the power plant, the roof over the transmission and fix them with rods;

- pull up the lock of the gearshift lever of the fan drive located on the input gearbox;

- turn the fan drive gear lever until the slot on it coincides with the letter "H" corresponding to a low fan speed under normal operating conditions, with the letter "B" on the input gearbox casing corresponding to a high fan speed at an ambient temperature above plus 25 ° С or an ambient temperature close to 0 ° С when limiting the movement of the tank by the temperature of the coolant or oil, also if necessary, for example, for repair work, the lever is moved to the "O" position corresponding to the switched off position of the fan;

- release the latch when it is fixed in a given position;

- close the roof over the power plant and the roof over the transmission;

- after performing these operations, when the fan drive gear lever is in the preset position "H" or "B", start the engine and continue to move;

- in the movement of a military tracked vehicle, the regulation of the intensity of the air flow in the air path of the cooling system is carried out by changing the position of the movable flaps of the exit louvers by controlling their position through a mechanical linkage system, and mechanically fixing the drive handle in the comb sector for selecting the positions of the louvers.

Rotation from the engine through the fan drive of the cooling system is transmitted to the fan and air is circulated in the air path of the cooling system. The air is sucked in by the fan through the inlet louvers, passes through the oil and water radiators and is thrown out through the outlet louvers.

If it is necessary to control the intensity of the air flow in the air path of the engine cooling system of the tank in motion, to change (increase or decrease) the intensity of the air flow, perform the following sequence of actions:

- to change the position of the movable leaves of the exit louvers by controlling their position through a mechanical lever-pulling system, and mechanically fixing the drive handle in the comb sector for selecting the louvers positions;

- if the control of the position of the exit louvers does not provide the required temperature regime in the engine cooling system, at a high coolant or oil temperature, switch to a lower gear and increase the speed;

- if the temperature does not drop, stop the tank, reduce the coolant temperature;

- if the temperature does not rise, stop the tank;

- stop the engine;

- open the roof over the power plant, the roof over the transmission and fix them with rods;

- pull up the lock of the fan drive gear lever located on the input gearbox;

- turn the fan drive gear lever until the slot on it coincides with the letter "H" corresponding to a low fan speed under normal operating conditions, with the letter "B" on the input gearbox casing corresponding to a high fan speed at an ambient temperature above plus 25 ° C or an ambient temperature close to 0 ° C when the tank movement is limited by the temperature of the coolant or oil;

- release the latch when it is fixed in a given position;

- close the roof over the power plant and the roof over the transmission.

- after performing these operations, when the fan drive gear lever is in the preset position "H" or "B", start the engine and continue driving.

The following disadvantages prevent the use of this method:

- the lack of remote control of the operating modes of the fan of the engine cooling system of a military tracked vehicle, as a result of which there is a possibility of hitting the crew of the vehicle by a lightly armed enemy when shifting gears on the fan drive and losing time to perform this operation;

- lack of automated control of the shutter drive of the engine cooling system, in connection with which the driver constantly monitors the temperature of the engine, which causes a weakening of attention to the situation on the way and an increase in the driver's fatigue;

- high probability of improper operation of the engine, due to insufficient theoretical preparedness of the driver;

- lack of a "self-protection" mechanism in the system in cases of overheating or overcooling of the engine.

As is known from these sources [1, 2], the intensity of the air flow in the air path of the cooling system is regulated by the position of the movable shutters of the outlet louvers, as well as by installing the appropriate gear in the fan drive. The source [1] indicates that the fan of the engine cooling system of the T-72B tank under normal operating conditions at an ambient temperature of + 25 ° C and below should be switched to a lower gear "H". High gear "B" is engaged when the ambient temperature is over 25 ° C, if the movement of the tank is limited by the temperature of the low-freezing liquid or oil. But due to the limited choice of options for regulating the intensity of the air flow in the air path of the cooling system when operating equipment in winter conditions, characterized by a stable ambient temperature of plus 5 ° C and below, when the tank movement is limited by the temperature of the low-freezing coolant or oil, there is a possibility of the need to switch transferring the operation of the cooling system fan from low speed "H" to high speed "B" to ensure optimal temperature conditions of the engine cooling system.

If the regulation of the position of the movable leaves of the exit louvers, the inclusion of a low gear and an increase in the number of revolutions of the engine crankshaft is not enough to achieve the optimal temperature regime of the engine cooling system of the car, then, having reached the permissible temperature, it is necessary to stop the engine, the driver and one of the crew members to change gear in the drive fan in order to change (increase or decrease) the intensity of the air flow in the air path of the cooling system, you must leave your seats in the car and open the roof above the power plant, the roof above the tank transmission, then move the fan drive gear lever to the preset position, close the roofs above power plant, transmission of the tank, take their places in the tank, start the engine and continue driving. During the performance of these actions, the crew members of the tank will be available to defeat many types of enemy weapons, including small arms.

The source [3] indicates a method for cooling the engine of a military tracked vehicle. A method for cooling an engine of a military tracked vehicle, including circulation and heating of a coolant, characterized in that, in order to increase the efficiency of the cooling system, the coolant is heated to 140-150 ° C, while maintaining the thermal tension of the parts of the cylinder-piston group, while intensifying the process of heat transfer from the walls of the cylinders due to their ribbing, and the required degree of intensification is determined by the calculation formula.

The disadvantage of the proposed method lies in the high heat density of the parts of the power plant of a military tracked vehicle, as a result of which oil coking, greater wear of rubbing engine parts, a decrease in efficiency, power, an increase in specific fuel consumption and failure of the power plant will occur.

The source [4] indicates a tank cooling system, characterized in that to automatically maintain a given temperature regime of the cooling system, increase the reliability and reduce the size of the power plant units in the drive connecting the gearbox and the fan through an elastic coupling, a hydraulic coupling is installed mechanically connected to the fan through an epicycle and a carrier, and hydraulically - with a gear pump through a hydraulic regulator, which, in turn, is connected to a temperature sensor through a comparator, a hydrostatic transmission is installed parallel to the hydraulic coupling, the pump of which is connected to the input gearbox, and the motor is connected to a fan through a sun gear and a carrier and the adjustable pump swashplate is connected via an actuator, amplifier and comparator to a temperature sensor.

The following should be noted as the disadvantages of the tank cooling system: low reliability of the proposed system compared to the traditional design used on modern tanks; complication of the fan drive design with an increase in its cost and a decrease in reliability; decrease in the reliability of the hydraulic control and lubrication systems of the transmission and engine cooling due to the common oil circuit of the fan drive and hydrostatic transmission; the need to make significant changes to the traditional design of military tracked vehicles; increasing the labor intensity of repair and maintenance of the power plant with the proposed system; increasing the capacity of the hydraulic control system and transmission lubrication through the use of a hydrostatic transmission and a fluid coupling.

Known cooling system tracked or wheeled vehicles, indicated in the source [5]. The technical result of the proposed solution is to automatically maintain a predetermined temperature regime of the cooling system by automatically adjusting the fan speed, saving engine power and facilitating the operating conditions of the combat vehicle driver by using an electric motor connected to a speed sensor and a fan.

The described system has the following disadvantages: low reliability of the engine cooling system with a fan powered by an electric motor; high load on the on-board network of the machine from the fan drive electric motor; the need for an additional power supply for the fan drive electric motor; the need to make significant changes to the traditional design of military tracked vehicles; low stability of the system when the enemy uses electronic warfare (use of powerful electromagnetic weapons); inability to control the system manually in the event of an electronics malfunction; the ability to automatically adjust the intensity of the air flow in the air path of the engine cooling system by the position of the movable leaves of the outlet louvers is not used.

Sources [6, 7] indicate an automated cooling system for a diesel installation of multipurpose tracked and wheeled vehicles. The proposed automated cooling system consists of two subsystems. The first is responsible for controlling the opening and closing of the outlet louvers, which are used to adjust the volume of circulating air. The second is for fan control. The shutters are opened and closed by means of an electromagnet, and the fan, as in the source [5], is controlled by an electric motor.

This system has the following disadvantages: low reliability of the engine cooling system with a fan powered by an electric motor; high load on the on-board network of the machine from the fan drive electric motor; the need for an additional power supply for the fan drive electric motor; the need to make significant changes to the traditional design of military tracked vehicles; low stability of the system when the enemy uses electronic warfare (use of powerful electromagnetic weapons); inability to control the system manually in the event of an electronics malfunction; the possibility of the blinds functioning together with the collective protection system when it is triggered is not provided.

The source [8] discusses the tank cooling system. The proposed system allows to automatically maintain a rational temperature regime of the power plant and facilitates the operating conditions of the driver by replacing the fan clutch with a magnetorheological clutch, kinematically connected to the fan shutdown clutch controlled by an electronic control unit.

The use of this system is hindered by the following disadvantages: significant energy consumption to create a magnetic field, in which the characteristics of the magnetorheological fluid change, and hence the clutch as a whole; low temperature stability of the liquid contained in the magnetorheological composition used in the magnetorheological clutch at low ambient temperatures; the ability to automatically adjust the intensity of the air flow in the air path of the engine cooling system by the position of the movable leaves of the outlet louvers is not used.

The source [9] discusses the tank cooling system. The technical result of the claimed tank cooling system is to reduce the power consumption for the fan drive, as well as to ensure the optimal temperature regime of the engine operation. The technical result is achieved by installing an electric liquid pump controlled by an electronic control unit, while the fan is driven by a turbo drive with a regulating flap and an electric friction clutch.

This system has the following disadvantages: low reliability of the system due to its complication, which consists in the inclusion of a turbo drive and an electric liquid pump; inefficiency of the system when the engine is idling, since the exhaust gas energy will not be enough to provide the required power in order to rotate the turbo drive of the cooling system fan, which will most likely lead to engine overheating; increasing the load on the on-board network of the car due to the addition of the number of energy consumers; the need to make significant changes to the traditional design of military tracked vehicles; low stability of the system when the enemy uses electronic warfare (use of powerful electromagnetic weapons); inability to control the operating modes of the fan and the liquid pump in case of failure of electronic equipment; increasing the labor intensity of repair and maintenance of the power plant with the proposed system; the ability to automatically adjust the intensity of the air flow in the air path of the engine cooling system by the position of the movable leaves of the outlet louvers is not used. Known adaptive tank cooling system, indicated in the source [10]. The technical result of the claimed system is to ensure the optimal temperature of the coolant in the entire range of operating modes of the engine by installing a rail position sensor of the high pressure fuel pump, as well as a crankshaft speed sensor in the system described in the source [9]. The proposed system has the same disadvantages as the tank cooling system described in the source [9].

The source [11] describes a tank cooling system with a combined fan drive. The technical result of the claimed system is to ensure effective cooling of the engine when it is idling by installing a Pelton turbine with a pressure reducing valve, a regulating valve for the oil line of the lubrication system and a mass air flow sensor in the system specified in the source [9].

The following should be noted as the disadvantages of the tank cooling system with a combined fan drive: low reliability of the system due to its complication, consisting in the inclusion of a turbo drive, an electric liquid pump and a Pelton turbine; increasing the load on the on-board network of the car due to the addition of the number of energy consumers; the need to make significant changes to the traditional design of military tracked vehicles; low stability of the system when the enemy uses electronic warfare (use of powerful electromagnetic weapons); inability to control the operating modes of the fan and the liquid pump in case of failure of electronic equipment; increasing the labor intensity of repair and maintenance of the power plant with the proposed system; the ability to automatically adjust the intensity of the air flow in the air path of the engine cooling system by the position of the movable leaves of the outlet louvers is not used; an increase in the capacity and a decrease in the reliability of the engine lubrication system due to the inclusion of a Pelton turbine in it, the presence of a common oil circuit for the fan drive and the engine lubrication system; a decrease in pressure in the engine lubrication system and an increase in the load on the oil pump of the system due to an increase in its volume and the number of devices in its composition.

The closest to the claimed and adopted as a prototype is a device for maintaining the optimal temperature regime of the cooling system of the power plant of military tracked vehicles, described in the source [12], consisting of a jacket for cooling the engine cylinders, an input gearbox, a bevel gearbox, a fan, shutters with a drive and an electrothermometer , characterized in that an information processing unit is additionally installed in the cooling system of the power plant, and the variator is connected by the drive shaft to the input gearbox, in which the angular velocity sensor is installed, and the driven variator shaft is connected to the bevel gearbox, in addition, the blind control drive is equipped with an electric motor and a position sensor of the shutters, which are connected to the information processing and command issuing unit. Due to the automatic control of the shutter drive and the use of a variator in the fan drive, the optimal temperature regime of the cooling system of the power plant of a military tracked vehicle (VGM) is maintained, regardless of the actions of the driver.

The following disadvantages interfere with the use of this device:

- there is no provision for automated control of the shutter drive of the cooling system while maintaining the possibility of manual control in case of malfunction of the elements of the proposed device, for example, when the enemy uses electronic warfare (use of powerful electromagnetic weapons);

- the possibility of functioning of the blinds together with the collective protection system when it is triggered is not provided, since when it is triggered, the blinds must be forced to close;

- it is not possible to remotely control the operation modes of the fan of the engine cooling system of a military tracked vehicle when controlling the fan in manual mode in order to ensure the protection of the crew when shifting gears in the fan drive of the engine cooling system;

- the presence of an electric motor for controlling the shutters of the engine cooling system blinds increases the load on the on-board network of a military tracked vehicle, as a result of which there is a need for an additional power source for the electric motor; this drawback in the device can be eliminated by using the engine air system in the process of controlling the shutters;

- low reliability of the engine cooling system with a variator due to a reduced service life of the variator, a high probability of its breakdown during overheating, especially in hot climates, increased wear of the variator at low ambient temperatures due to the lack of its preheating to the required operating temperatures;

- the design of the engine-transmission compartments of most of the used military tracked vehicles, for example, modifications of the T-72 and T-90 tanks, do not provide for a place for placing a variator in them.

The proposed device for controlling the intensity of the air flow in the air path of the engine cooling system of a military tracked vehicle can be used to stabilize the optimized temperature regime of the engine cooling system of a military tracked vehicle.

The technical result consists in the use of automated control of the shutter drive of the engine cooling system while maintaining the possibility of manual control, in ensuring the possibility of functioning of the shutters of the engine cooling system together with the collective protection system when it is triggered, in the use of remote control of the operation modes of the fan of the engine cooling system of a military tracked vehicle during control operation of the fan in manual mode in order to ensure the protection of the crew when shifting gears in the fan drive of the engine cooling system, in reducing the load on the on-board network of a military tracked vehicle by using the engine air system to control the shutters of its cooling system and increasing the reliability of the operation of the engine of the military tracked vehicle.

The technical result is achieved by the fact that, in contrast to the prototype device, the following elements are excluded from the design of the proposed device: variator; drive shaft; driven shaft; sensor for angular speed of the fan drive shaft; an electric motor and additionally installed cardan drives, an electric pneumatic valve for controlling a pneumatic cylinder, consisting of a main and a drain valve, an executive multi-position pneumatic cylinder with a return spring and an inductive sensor for controlling piston movement, a control panel for fan operation modes with an information display and a transceiver device, an electromagnetic fuel control valve with a transceiver device , a pneumatic cylinder for turning off the fuel supply, a fuel pump rail position sensor, a device for moving the fan drive gear lever, consisting of a fan drive gear lever, a fan drive gear lever lock, two electric motors with cables, a fan drive gear lever carriage, a horizontal guide, frame, consisting of two plates, fastened by four telescopic racks, with two servocylinders, a transceiver a fan drive gear change lever, a fan drive gear lever position sensor, a high pressure fuel pump and two compressed air cylinders of the military tracked vehicle air system are also involved in the operation of the device.

During the operation of the VGM engine, the temperature sensor monitors the operating indicator of the coolant temperature, the monitored signal is sent to the information processing and command issuance unit, which in turn differentiates the incoming signal into temperature ranges. Further, in accordance with the operating temperature range of the engine, the signal is sent to the pneumatic cylinder control electro-pneumatic valve for supplying the working fluid (air) to the cavity of the multi-position pneumatic cylinder with a return spring and giving a predetermined position to the outlet louvers. The reverse position of the outlet louvers is given by the action of the return spring, which acts on the cylinder rod. The angle of inclination of the exit louvers is controlled by a sensor, the signal from which is sent to the information processing unit and issuing commands.

When the collective protection system is triggered, an additional signal is sent to the information processing unit and issuing commands, which turns off the electric pneumatic valve for controlling the pneumatic cylinder and the executive multi-position pneumatic cylinder with a return spring from the system, thereby ensuring unhindered operation of the collective protection system.

If it is necessary to change the gear of the fan drive, the driver (MB) stops the machine, moves the gear lever to the neutral position, sets the brake pedal to the latch, switches on the necessary gear on the fan operating mode control panel using the switch, a signal is transmitted from the control panel transceiver device to the solenoid valve (EMC) for the fuel supply control with a transceiver device, then the air from the air cylinders flows through the EMC into the pneumatic cylinder for turning off the fuel supply, as a result of which the lever of the regulator of the high pressure fuel pump (injection pump) returns to its original position and the fuel supply to the injection pump stops, thereby interrupting the operation of the VGM engine, the fuel pump rail position sensor gives a signal to stop the fuel supply to the EMC with the transceiver device and the EMC interrupts the air supply, then the signal is sent to the information processing unit and issuing commands from which the signal is blunts at the device for moving the gearshift lever of the fan drive, which moves the gearshift lever of the fan drive to the required position and sends a signal to the information processing unit and issuing commands, as well as to the fan operating mode control panel with an information board and a transceiver device, on which it lights up a lamp signaling the inclusion of a given gear. After completing these operations, MB starts the car and continues to move.

The analysis made it possible to establish that there are no analogs that characterize the totality of features identical to all features of the claimed device, which indicates that the claimed device meets the "novelty" condition of patentability.

The results of the search for known solutions in this and related fields of technology in order to identify features that match the distinctive features of the prototype of the features of the claimed object, have shown that they do not follow explicitly from the prior art. The state of the art has also not revealed the influence of the transformations envisaged by the essential features of the claimed technical solution on the achievement of the specified technical result. Consequently, the claimed technical solution meets the requirement of patentability "inventive step".

The "industrial applicability" of the proposed device is due to the presence of the element base, on the basis of which it can be made.

The claimed device is illustrated with the help of a drawing, which shows a diagram of the implementation of the device for controlling the intensity of the air flow in the air path of the engine cooling system of a military tracked vehicle.

The diagram of the implementation of the device for controlling the intensity of the air flow in the air path of the engine cooling system of a military tracked vehicle reflects the structural composition of the device for controlling the intensity of the air flow in the air path of the engine cooling system of the military tracked vehicle: 1 - engine, 2 - coolant temperature sensor, 3 - input gearbox , 4 - output shutter position sensor, 5 - information processing and command issuance unit, 6 - shutter drive, 7 - cardan transmissions, 8 - bevel gearbox, 9 - output shutters, 10 - pneumatic cylinder control electro-pneumatic valve, consisting of the main and drain valves, 11 - executive multi-position pneumatic cylinder with a return spring and an inductive sensor for controlling the piston movement, 12 - control panel for fan operating modes with an information board and a transceiver; 13 - solenoid valve for fuel supply control with a transceiver device; 14 - high pressure fuel pump; 15 - pneumatic cylinder for turning off the fuel supply; 16 - fuel pump rack position sensor; 17 - device for moving the fan drive gear lever; 18 - electric motors; 19 - cables of electric motors; 20 - carriage of the fan drive gear lever; 21 - horizontal guide; 22 - frame, consisting of two plates, fastened by four telescopic racks; 23 - two servocylinders; 24 - transceiver of the fan drive gear lever; 25 - position sensor of the fan drive gear lever; 26 - fan drive gear change lever; 27 - retainer of the fan drive gear lever; 28 - cylinders with compressed air of the military tracked vehicle air system; 29 - fan of the engine cooling system.

The device for controlling the intensity of the air flow in the air path of the engine cooling system of a military tracked vehicle operates as follows.

During the operation of the VGM engine 1, the coolant temperature sensor 2 monitors the operating indicator of the coolant temperature, the monitored signal is sent to the information processing unit and issuing commands 5, which in turn differentiates the incoming signal, for example, into the following temperature operating modes: 0-80 ° С - in this position, the outlet shutters 9 are completely closed, which ensures efficient warming up of the engine before starting, as well as its further warming up to temperatures ensuring stable operation; 80-85 ° С - intermediate position; 85-90 ° С - intermediate position; 90-95 ° С - intermediate position; 95-100 ° С - intermediate position; above 100 ° С - in this position, the outlet louvers 9 are in the fully open position to ensure the strongest circulation of the air flow through the engine-transmission compartment (MTO) and to prevent engine overheating 1.

Further, in accordance with the current temperature mode of operation of the engine 1, the signal from the information processing unit and issuing commands 5 is fed to the electric pneumatic valve for controlling the pneumatic cylinder 10 through which the working fluid (air) from the compressed air cylinders of the air system VGM 28 enters the cavity of the executive multi-position pneumatic cylinder with return spring 11 and gives a predetermined position to the outlet louvers 9. The predetermined position to the rod of a multi-position pneumatic cylinder with a return spring 11 is given by means of air entering the pneumatic valve control of the pneumatic cylinder 10, five pairs controlled by electromagnets with stop springs, and an inductive sensor for controlling the piston movement (in the figure, not shown). The control of the stops and the inductive sensor for controlling the piston movement is performed by the information processing unit and issuing commands 5. The reverse position of the outlet louver 9 is given by the action of the return spring, which acts on the rod of the multi-position pneumatic cylinder, moving it to its original position, also by adjusting the position of the controlled stops in accordance with with the set temperature modes of operation and operation of the drain valve, which removes excess air from the executive multi-position pneumatic cylinder with a return spring 11. The angle of inclination of the outlet louvers 9 is controlled by the position sensor of the outlet louvers 4, the signal from which goes to the information processing unit and issuing commands 5. When triggered of the collective protection system, an additional signal is sent to the information processing unit and issuing commands 5, which turns off the electric pneumatic valve for controlling the pneumatic cylinder 10 and a multi-position pneumatic cylinder with a return spring 11 from the system, thereby provides unimpeded operation of the collective protection system.

If it is necessary to change the gear of the fan drive, MB stops the machine, moves the gear shift lever to the neutral position, sets the brake pedal to the latch, on the control panel of the fan operating modes with an information display and the transceiver 12 switches the required gear using the switch, from the control panel of the fan operating modes with the information board and the transceiver device 12, a signal is transmitted to the solenoid valve (EMC) for the fuel supply control with the transceiver device 13, then the air from the compressed air cylinders of the air system VGM 28 enters through the EMC 13 into the pneumatic cylinder for turning off the fuel supply 15, as a result of which the fuel pump regulator lever high pressure (high pressure fuel pump) returns to its original position and the fuel supply to the high pressure fuel pump 14 is stopped, thereby interrupting the operation of the VGM engine, the position sensor of the fuel pump rack 16 sends a signal to stop the fuel supply to the control EMC i is supplied with fuel supply with a transceiver device 13 and the air supply is stopped, then the signal from the EMC fuel supply control with the transceiver device 13 is fed to the information processing unit and issuing commands 5, from which the signal is sent to the transceiver device of the gearshift lever of the fan drive 24, then from the transceiver device of the gearshift lever of the fan drive 24, the signal is fed to the servocylinders 23, which raise up the frame plate 22 with the lock of the gearshift lever of the fan drive 27, then to one of the electric motors 18, which, using the cable 19, moves the carriage of the gearshift lever of the fan drive 20 together with the lever to shift gears of the fan drive 26 along the horizontal guide 21 towards itself until the slot on it aligns with the corresponding letter "B", "H", "O", the position sensor of the gear shift lever of the fan drive 25 determines its position and sends a signal to the processing unit and information and issuance of commands 5, as well as to the control panel of the fan operation modes with an information board and a transceiver device 12, on which a lamp lights up, signaling the inclusion of a given gear. After performing these operations, MB starts the engine and continues to move.

The provision of signal transmission between devices and sensors implemented in this device can be performed using electrical wires in order to increase the noise immunity of the automated engine cooling system of a military tracked vehicle. The automated cooling system of the VGM engine can be controlled in manual mode. The additional equipment installed to automate the control of the VGM engine cooling system can be turned off through the information processing unit and issuing commands 5, which turns off the pneumatic cylinder control valve 10, a multi-position pneumatic cylinder with a return spring 11 and a fan operating mode control panel with an information display and a transceiver device 12 from system or using switches located on the devices themselves. The lock of the gear lever of the fan drive 27 and the gear lever of the fan drive 26 can be moved manually, without using a device to move the gear lever of the fan drive 17. When the engine 1 is turned off, the information processing unit and issuing commands 5 is switched off by the driver. A switch and a signal lamp, signaling the inclusion of the information processing unit and issuing commands 5, can be located on the driver's instrument panel.

In the proposed technical solution, automated control of the shutter drive of the engine cooling system is implemented while maintaining the possibility of manual control, the operation of the shutter of the engine cooling system is ensured together with the collective protection system when it is triggered, remote control of the fan operation modes of the engine cooling system of a military tracked vehicle is used when the fan is controlled in manual mode in order to ensure the protection of the crew when shifting gears in the fan drive of the engine cooling system, the load on the on-board network of the military tracked vehicle is reduced by using the engine air system to control the shutters of its cooling system and the reliability of the engine of the military tracked vehicle is increased.

Thus, the technical result has been achieved. This technical solution is applicable to many models of military tracked vehicles and is especially necessary when performing combat missions in settlements, mountainous, wooded areas, while protecting and escorting columns, on the march in anticipation of engaging in battle and other conditions characterized by a high probability of an enemy attack. When the above technical result is achieved, the process of functioning of the collective protection system specified by the manufacturer is not disrupted.

SOURCES OF INFORMATION

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2. Tank T-72B. Technical description. RF Ministry of Defense. M .: Military publishing house, 2002.190 p.

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7. Lepeshinsky I.Yu., Chikirev OI, Varlakov P.M., Markelov A.S. Automated cooling system of a diesel installation of multi-purpose tracked and wheeled machines [Electronic resource] // Modern problems of science and education. 2014. No. 1. System. Requirements: Adobe Acrobat Reader. URL: http://science-education.ru/ru/article/view?id=11949 (date accessed: 04/07/2020).

8. Patent for utility model No. 175715 Russian Federation, IPC F01P 5/04, F01P 7/08. Tank cooling system / D.V. Shabalin; applicant and patent holder Federal State Treasury Military Educational Institution of Higher Education Military Training and Research Center of the Ground Forces "Combined Arms Academy of the Armed Forces of the Russian Federation". No. 2016142465; declared 10/28/2016; publ. 15.12.2017, Bul. No. 35. 5 sec.

9. Patent for utility model No. 185652 Russian Federation, IPC F41H 7/02, F01P 11/18. Tank cooling system / D.V. Shabalin, V.V. Ivanov, T.A. Ivakhnenko, A.V. Hasan, M.G. Grankin, R.V. Yakimushkin, D.D. Zuev, D.S. Pervikh, S.S. Ackerman, B.M. Shamenov, D.A. Pisarev, N.E. Rakimzhanov, D.S. Agafonov; applicant and patentee Shabalin D.V., Ivanov V.V. # 2018137106; declared 10/22/2018; publ. 13.12.2018, Bul. No. 35, 5 p.

10. Patent for utility model No. 190147 Russian Federation, IPC F01P 11/18, F01P 11/18. Adaptive tank cooling system / D.V. Shabalin, V.V. Ivanov, A.V. Ivanov, A.S. Hartung, A.A. Andreenkov, P.N. Ermolaev, S.A. Sazonov; applicant and patentee Shabalin D.V., Ivanov V.V. # 2019107628; declared 03/18/2019; publ. 06/21/2019, Bul. No. 18. 4 sec.

11. Patent for utility model No. 195107 Russian Federation, IPC F01P 5/04, F01P 7/08. Tank cooling system with a combined fan drive / D.V. Shabalin, V.V. Ivanov, A.V. Ivanov, R.V. Gavrish, I.O. Suetin, A.A. Zankin, A. Yu. Vasilyuk, A.S. Gryaznov, A.A. Tibogarov, A.I. Abdullaev, D.D. Zuev, Jean-Jacus Nyeongabo; applicant and patentee Shabalin D.V., Ivanov V.V. # 2019135590; declared 11/05/2019; publ. 01/15/2020, Bul. # 2. 5 sec.

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Claims (1)

A device for controlling the intensity of the air flow in the air path of the engine cooling system of a military tracked vehicle, consisting of an engine, an engine coolant temperature sensor, an input gearbox, a louver position sensor, an information processing and command issuing unit, a shutter blade drive, a bevel gearbox, a fan, shutter blades , characterized in that cardan drives are additionally installed in the device, an electric pneumatic valve for controlling a pneumatic cylinder, consisting of a main and a drain valve, an executive multi-position pneumatic cylinder with a return spring and an inductive sensor for controlling piston movement, a control panel for fan operating modes with an information display and a transceiver device, an electromagnetic valve fuel supply control with a transceiver device, a pneumatic cylinder for turning off the fuel supply, a fuel pump rack position sensor, a device for moving the valve drive gear lever torus consisting of a fan drive gear lever, a fan drive gear lever lock, two electric motors with cables, a fan drive gear lever carriage, a horizontal guide, a frame consisting of two plates fastened by four telescopic struts, with two servo cylinders, a transceiver a fan drive gear lever, a fan drive gear lever position sensor, a high-pressure fuel pump and two compressed air cylinders of the military tracked vehicle's air system are also involved in the operation of the device.

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