IMPROVEMENT AND MODERNIZATION Engine-transmission PLANTS TANKS
In addition, the MP introduced a remote-controlled from the driver's seat mechanism off the transmission from the engine, thus reducing the resistance to scroll cold starting ~ twice.
The rest of the system remained virtually unchanged.
The original layout solutions is to bring together in one unit:
-MP directly to the GOP, the transmission mechanism and disable the devices connected to the BCP;
-ventilation unit consisting of two fans and a drive gear with hydraulic clutch;
-oil tank Gopal.
Described the MP unit is installed in the housing in two covers on the tank using a regular guitar and additional mounting yoke at the left side.Jet currently perceived special lever that is rigidly connects the body of the unit to the left yoke.Fig.1 shows a layout diagram of the MTO, and Fig.2 and 3 - Photos upgraded MTU.
Tests have confirmed the prototype of its functional features, including the ability to:
-Implementation of turns as the stepless turning radius in all gears, and with minimum design radius in low gear
(1 ... 3) the translation of the stick in the extreme positions;
-smooth, but fast is less likely to skid entering the turn with further tracking the path of movement in accordance with the position of the wheel.As a result, during the tests recorded an increase in average speed.So experienced driver passes the original design "snake" on a narrow concrete road with a speed 19% higher than when driving the serial tank.It is very important that a smooth change in the trajectory of motion improves shooting accuracy with "stroke" and reduces the likelihood of loss of purpose;
-turn around the axis of the tank at the first speed-SX in the extreme positions of the wheel, which improves maneuverability of the tank;
-soft starting and shift without soaking clutch.This method simplifies the driving control reduces driver fatigue, and increasing the average speed.When testing the prototype of the drivers usually do not use the clutch pedal;
-movement and maneuvering of the tank on the first speed-SX case of failure of the electronic control unit by switching to mehanogidravlicheskih system that reduces vulnerability and increases the survivability of the machine;
-remote shutdown of the transmission from the engine to increase the reliability of its start by reducing the resistance of the scroll;
-temperature control of MTU by turning off fans.
Production tanks of the T-90 and T-80 with the GOP in the MP is not listed benefits
possess.
Developed and implemented the original design electrohydraulic control system of BOD and rotating wheel control have greatly reduce the control force, improve ergonomics and to implement the first phase of the automation of control.
So, in the course of design studies and tests of the model sample:
1.The possibility of accommodation with the rotation mechanism GOP units electrohydraulic control system and a new fan installation in the MTO T-90 without major changes in its body.
2.Confirmed the expected functional advantages of the tank with the new
systems: the ease and precision of control, good feedback descriptiveness, the ability to automate and, as a consequence, an increase in average speed.
3.It has been established that the new decision laid down in the model sample of moves can
It is taken as a basis for improving the MTO commercially produced T-90 tanks and modernization of tanks in operation.
With further improvement of MTU offered:
1.Enter an automated traffic control system through the current revision the original design, as follows:
- Set additional keys on the stick shift;
- To introduce the necessary changes in the program of the electronic unit.
This measure will simplify the process of managing, improve clarity and reduce fatigue.
2.Enter the duplicated traffic management system with the commander.This can be achieved primarily through the introduction of electric control system Gopom and fuel supply.
The introduction of this improvement will increase the fighting qualities of the tank and its vitality.
3.Perform connected in one unit with the unit of MP fan installation and guitar.The new guitar is expedient to establish the necessary fuel pump performance with simultaneous "liquidation" of an additional pump.In addition to these units in the unit it is advisable to enter the oil tank of the engine and transmission with a simultaneous change in their position in the ITO - the transfer of the tanks to the left side of the engine and transmission to the right.
4.Develop and implement an improved version of fan installation, as follows:
4.1.Enter in the multi-drive fans (or stepless)
controlled gearbox allows you to quickly turn off the fans at
increasing their speed close to the maximum allowable by
the strength of the wheel and at the moment of intense acceleration and gear change
attitude, depending on your tank problems and speed
load engine operation.
This will:
- To increase the fan speed to ~ 15% in the modeNeMaxand 30-35% for mode MkMax;
-reduce the fan speed at low loads, moderate and low ambient temperatures;
- Turn off the fan when heating, overcoming water obstacles, heavy acceleration.
4.2.Enter the necessary changes in the software electronically controlled to vary the temperature of the cooling system and fan operation, depending on the tasks performed by the tank.
4.3.Increase the diameter of the fan wheel with 420 mm to about 450 mm.
4.4.Change the design of the fan - go to high-alloy wheel fans.
Implementing these measures will increase the effectivenessofthe cooling performance of the MTU, and in particular, its efficiency and improve the acceleration characteristics of the tank.
Implementation of the proposed technical solutions will not only increase the level of automation of management and improve the ergonomics, but also under
nyabe the main indicators of the characteristics of mobility modernized tank (or the T-90 modernized MTU) to the level of the best foreign tanks intact the hull and expensive production sites (OPF engine package radiators, air cleaners, etc.).
Gur Khan: interested in the subject, will remember that the first information about the work of Gopu in one of the stages of R & D "Motoball" the efforts of one of the direct participants in the work took place in the network almost immediately after the first out of the tank with installed new transmission (for he thanks a lot).In the web it lasted not long since given the secrecy of the work, the man was advised to remove it from sin.On this occasion, I spread over part of the picture that would be those who were not aware they could appreciate.
imensions - 251,9 x 131,9 x 13 mmWeight of the element - 1,37 kgWeight of explosives in the element - 0,28 kg (TNT equivalent - 0.33 kg )Shelf life - not less than 10 yearsis able to operate with the elements of mechanical shocks with a peak shock loads of 196 m / s2, when dropped from a height of 1.5 m on a concrete or steel base, in a temperature range from -50 to +50 degrees. S.Explosives elements 4S22 does not detonate when hit by armor-piercing incendiary bullets of 7.62 and 12.7 mm projectile fragments PF when blowing at 10 m or more, the combustion of EDZ on the surface of the combustible mixture and napalm.4S22 elements are installed in a special chamber provided for in the design of the tank. The weight of the complex on the T-90 - 1500 kgNumber of sections DZ - 26 pcsTotal 4S22 - 252 pcs.Number of sections on the main parts of the tank: the tower - 8 pieces; on the upper front - 12 pieces; on-board screens - 6 pieces.The area of the frontal projection of the tank, floors complex: at course angle 0 degrees - more than 55% in the course angles of ± 20 ° (body) - more than 45% in the course corners ± 35 degrees (Tower) - more than 45%Increase protection of the tank: from cumulative shells - 1.9 ... 2.0 times from armor-piercing - 1.2 times (according to test 1.6 times)in the part of the media have information that T-90A / F-90SA a complex set of dynamic protection of the third generation "Cactus" ("Relic") with elements of 4S23.This information requires additional verification.
