SU1373845A1 - Device for regulating diesel-generator - Google Patents

Abstract

This invention relates to the field of automatic control of internal combustion engines. The purpose of the invention is to increase reliability. For this, the device is equipped with a diode 26, the anode of which is connected to one of the output clips of the one-shot (ON) 27. The cathode of the diode is connected to the positive pole of the power source I7. The second output terminal OH 27 is connected to one of the windings of the electromagnet (EM) 13. The shoulder 25 of the triple arm 7, the coupling speed regulator 4 of rotation with the body 5 of the fuel metering, is rigidly connected to the movable contact 15 between the winding clip EM 13 and 17. source of nutrition. In the case of a load surge, additional air is supplied from an AB 27 pulse when one EM 13 triggers and the spool II is moved to open the compressed gas supply. I il. (L

Description

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This invention relates to the automatic regulation of internal combustion engines.

The purpose of the invention is to increase reliability.

The drawing shows a diagram of the device.

Diesel 1 is equipped with a turbocharger 2 connected to a supercharger receiver 3. The rotational speed controller A is connected to the fuel metering body 5 of the 1C1 diesel engine 6 through a three-arm lever 7. The compressed air supply 8 is connected to the air supply 9 main through the gate valve 10, which is made in the form of a spool 1I driven by a core 12 of an electromagnet 13.

A spring 14 is installed between the core 12 and its gland.

The first terminal of the electromagnet 13 winding is connected to the power source 17 via a movable 15 and a fixed 16 contacts. Fixed contact

16 is connected via a spring 18 to a convex head 19, which is coupled with a movable stop 20 of the restrictor 21 of the movement of the fuel metering organ. The limiter 21 is driven by the boost pressure sensor 22, which communicates with the additional air supply line 9 directly through the channel 23 and with the receiver 3 through the non-return valve 24. The third arm 25 of the three-arm lever 7 is rigidly connected to the movable contact 15. Negative pole power supply 17 is connected to the second terminal of the winding of the electromagnet 13 and through diode 26 to the output terminal of a single vibrator 27, the second output terminal of which is connected to the first terminal of the winding of the electromagnet 13. The input of a single vibrator 27 is connected to you the progress of the differentiating chain 28, and the last input is connected to the output of the sensor 29

load connected to the core circuit of the generator 30.

The device works as follows.

When starting the engine, regulator 4 dramatically increases the fuel supply by turning lever 7 counterclockwise. As the lever 7 moves, its third arm 25 moves against

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clockwise, compressing the spring 18, moving the outward head 19 to the movable stop 20 and the movable movable contact 15 until it touches the contact 16. The chip 7 stops turning at the moment when the movable contact 15 reaches the stop 20.

Closing the contacts 15 and 16 leads to the connection of the power source 17 to the winding of the electromagnet 13. The core 12, compressing the spring 14, moves to the right, carries the spool 11, and opens the access of compressed air from the source 8 to the highway 9 and further to the diesel cylinder 6 The pressure pulse of compressed air through channel 23 is transmitted to sensor 22 of the charge air pressure. When this limiter 21 moves the movable stop 20 to the right and allows the pin 7 to make a turn on a further increase in fuel supply. The non-return valve 24 prevents additional air from entering the receiver 3 and does not prevent the pulse from pressurizing the sensor 22. The diesel starts. After the launch is completed, the lever 7 and its third arm 25 are moved clockwise and occupy the steady state. In this case, the third arm 25 moves the movable contact 15 to the left, which leads to the opening of the specified control circuit for supplying additional air. In a de-energized electromagnet 13, the spring 14 returns the core 12 and the spool 11 to its original position. The access of compressed air from source 8 to line 9 is stopped. Sun system comes to its original position. Since the start of the diesel occurs at idle, the signal of the load sensor 29 is zero, and the one-shot 27 does not participate in controlling the electromagnet 13.

When the diesel generator is operating under load at steady state, the signal from load sensor 29 is not zero, but there is no signal at the output of differentiating chain 28, and the single vibrator 27 does not participate in the work.

When the load changes, for example, when it is increased, the signal of load sensor 29 increases, which causes the output of the differential circuit 28 of the positive-1 pulse to appear, which triggers the one-shot 27, the output of which gives a positive pulse. The pulse duration with a certain reserve exceeds the time interval, the beginning of which is the moment of load change, and the end - the movement of the lever 7 on the stop corresponding to the maximum fuel supply. A one-shot impulse enters the electromagnet 13. At the same time, the indicated supply of compressed air from the source 8 to the cylinders 6 of diesel 1 begins to occur. As a result of an increase in the boost pressure, the movable stop 20 moves to the right. By this time, the dips in rotation cause the lever 7 and its third arm 25 to move. counterclockwise by an amount determined by the position of the stop 20. In this case, the specified closure of the power supply source to the electromagnet winding occurs. With a slight delay relative to this point, the one-shot pulse ends. Additional air supply will occur until the diesel engine reaches the specified load and lever 7, moving clockwise, will take the position corresponding to this load. In this case, contacts 15 and 16 are opened, which causes the activation of the system for deactivating the additional air.

The use of the device allows, in the event of a load being increased, to provide additional air from the pulse to the engine cylinders.

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one-shot, and when one electromagnet is triggered and the slide is moved to the right - compressed air supply to the control elements.

Claims (1)

Invention Formula A device for regulating a diesel generator, containing a rotational speed regulator, connected via the first and second arms of the three arms, to the fuel metering body., A compressed air source, a shut-off valve, executed in the form of a spool driven by a spring-loaded electromagnet core, the winding of which the first clamp is connected to the positive pole of the power source, the second clamp via the movable and fixed contacts to the negative pole of the power source, the boost pressure sensor, the movable stop p limiting the movement of the fuel metering authority, connected in series to a diesel generator load sensor, a differentiating circuit and a single vibrator with two output terminals, characterized in that, in order to increase reliability, it is equipped with a diode, the anode of which is connected to the first output terminal of the single vibrator, the cathode with the positive pole of the vibrator source, the second output terminal of the one, the Novibrator is connected to the second terminal of the electromagnet winding, and the third lever arm is rigidly connected with the movable KOHTaKTOfM.