SU1444557A1 - Starting system for internal combustion engine with compression fuel ignition - Google Patents

Abstract

The invention makes it possible to increase the reliability of engine starting. Accelerator 1 is made in the form of an electromagnet 2, the core of which is connected with spool valve 3, and hydraulic booster 4. The piston of the hydraulic booster is kinematically connected with the rail 5 of high-pressure fuel pumps 6. The hydraulic input of the latter is connected to the fuel manifold 8 of the engine 7. The battery 10 of the battery 10 is connected via the start button 11 to the coil of the starting contactor 12, connected to the starter motor 14 via the contacts of the latter and connected to the electromagnet 2 through the normally open contacts 15 of the coil 2. Coil current relay is connected to the circuit between the battery 10 and the starter-electric motor 14. The hydraulic input of the distributor 3 is connected to the collector 8. After starting the diesel, the starting current decreases sharply, which um to deflection current relay and opening the contacts 15. When the locking electromagnet 2 is turned off valve 3 is transferred to the original position and the fuel from the intensifier 4 is retracted into the drain system 9 of the engine 7. 1 yl. S (l

Description

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The invention relates to engine building, in particular, to systems for starting engines for internal combustion with compression ignition.

The aim of the invention is to increase the reliability of engine start.

The drawing shows a diagram of the proposed launch system.

The system contains accelerator 1 launch,

to the hydraulic booster 4. The piston rod of the hydraulic booster 4 moves the rail 5 of the fuel injection pump 6 to increase the supply of fuel to the diesel cylinders. After starting the diesel engine, the starting current is sharply reduced, which leads to the disconnection of the current relay and the opening of the locking contacts 15. When the electromagnet 2 of the accelerator is disconnected, the spool valve 3 is reset to its original position and the fuel from the hydraulic engine 9 of the engine 7.

Claims (1)

Invention Formula made in the form of an electromagnet 2, stock the core of which is connected to the spool valve of the amplifier 4 is discharged into the drain of the distributor 3, and the hydraulic booster 4. The piston of the hydraulic booster 4 is kinematically connected with the rail 5 of high-pressure fuel pumps 6 (TNVD) mounted on motor 7. Hydraulic inlet distrib. The engine start system of the internal divider 3 is connected to the fuel manifold 8 of the engine 7, and the hydraulic output of the distributor 3 is connected to the drain system 9 of the engine 7. The battery is 10 battery 10 through the start button 11 compression ignition combustion containing a launch accelerator, made in the form of an electromagnet, the bark stem of which is connected to the spool valve, and the hydraulic booster, button connected to the start-up contactor coil 12 20, the start-up contactor equipped with a cable (not shown), and through the contacts of the contactor 12 and the current relay coil 13 to the starter motor 14 whose shaft is connected to the engine shaft 7. Electromagnet 2 Accelerator 1 start through normally open contacts 15 Current relay is connected to the battery 10. The launch system works as follows. 25 a carcass, a starter motor, and a battery, the hydraulic booster piston is kinematically connected to the rail of high-pressure fuel pumps, the hydraulic input of the latter is connected to the engine fuel manifold, the battery battery is connected to the coil of the starting contactor, and through the contacts of the starting contactor A starter-electric motor, characterized in that, in order to increase the starting reliability, the system additionally contains a current relay fitted with a coil and normally open contacts, the coil of the current relay connected to the circuit between the battery and thirty a carcass, a starter motor, and a battery, the hydraulic booster piston is kinematically connected to the rail of high-pressure fuel pumps, the hydraulic input of the latter is connected to the engine fuel manifold, the battery battery is connected to the coil of the starting contactor, and through the contacts of the starting contactor A starter-electric motor, characterized in that, in order to increase the starting reliability, the system additionally contains a current relay fitted with a coil and normally open contacts, the coil of the current relay connected to the circuit between the battery and When the button 11 is pressed, the starting contactors 12 are turned on and the starter-electric motor 14 is powered by the battery 10. Simultaneously with turning on the starter-motor, the coil -js is powered by a starter-electric motor, the battery of the current relay, through the locking contacts of the battery through the normally open contacts 15 of which the electromagnet 2 of the accelerator 1 is connected. The electromagnet 2 moves the spool valve 3 to the position of the bypass of the fuel from the fuel manifold 8 of the engine 7 to 40 the contacts of the current relay are connected to the electromagnet of the accelerator start, and the hydraulic input of the spool valve is connected to the fuel manifold of the engine. to the hydraulic booster 4. The piston rod of the hydraulic booster 4 moves the rail 5 of the fuel injection pump 6 to increase the supply of fuel to the diesel cylinders. After starting the diesel engine, the starting current is sharply reduced, which leads to the disconnection of the current relay and the opening of the locking contacts 15. When the electromagnet 2 is turned off in the accelerator, the spool valve 3 is reset and the fuel from the hydraulic booster 4 is discharged to the drainage system mu 9 engine 7. Invention Formula  amplifier 4 is discharged to the drain Engine starting system compression ignition combustion containing a launch accelerator, made in the form of an electromagnet, the bark stem of which is connected to the spool valve, and the hydraulic booster, button start-up, start-up contactor, fitted with an overlap, start-up contactor, equipped with a carcass, a starter motor, and a battery, the hydraulic booster piston is kinematically connected to the rail of high-pressure fuel pumps, the hydraulic input of the latter is connected to the engine fuel manifold, the battery battery is connected to the coil of the starting contactor, and through the contacts of the starting contactor A starter-electric motor, characterized in that, in order to increase the starting reliability, the system additionally contains a current relay fitted with a coil and normally open contacts, the coil of the current relay connected to the circuit between the battery and starter-electric motor, the battery of the battery through the normally open starter-electric motor, the battery of the battery through the normally open the contacts of the current relay are connected to the electromagnet of the accelerator start, and the hydraulic input of the spool valve is connected to the fuel manifold of the engine.