SU800404A1 - Method of operating a carburettor i.c.engine - Google Patents

Description

The invention relates to mechanical engineering, in particular to internal combustion engines, and in particular to power plants containing a diesel engine and a starting engine.

Known power plants containing a diesel engine, its power supply system, equipped with a direct current source and an output connected to it by a generator kinematically connected to the diesel engine, and a starting engine equipped with a fuel tank mounted above the starting engine and communicated with its carburetor using a pipeline in which posted by the locking body [1].

However, due to the complexity of controlling the locking element of the starting engine, the operator, when starting known power plants, is forced to manipulate with both hands, which reduces the safety of operation of these installations

The purpose of the invention is to increase operational safety by automating the shutdown of the fuel supply to the starting engine after starting the diesel engine.

This goal is achieved by the fact that the generator is equipped with an additional output, the shut-off element is made in the form of an electromagnetic valve, and the latter is connected to the additional output through an electric circuit, 5 into which a matching element can be included, for example, resistance.

In FIG. 1 depicts a power plant, general view; in FIG. 2 is a view A in FIG. 1;

¹⁰ in FIG. 3 is an electrical diagram of a solenoid valve connecting to a diesel power system.

The power plant contains diesel 1, ςτο power supply system and a starting engine ¹⁵ 2, designed to start diesel 1. The starting engine 2 is placed on diesel 1, kinematically connected to its flywheel 3 through power transmission 4 and is equipped with fuel * · tank 5 installed above starting engine 2 and in communication with its carburetor 6 by means of a pipeline 7, in which a shut-off element is made, made in the form of an electromagnetic valve 8.

The power supply system of the diesel engine 1 is single-wire and contains a direct current source (battery 9), an alternator 10 and consumers 11 of electricity. The generator 10 is mounted on diesel 1, is driven by a V-belt 12 from the pulley 13 of the crankshaft 14 and is equipped with two terminals 15 and 16. Terminal 15 is connected to the battery 9 and consumers 11, and terminal 16 is connected to an electromagnetic valve 8, in the electrical circuit of which matching element (resistance 17). For the purpose of unification, it is possible to use an alternator with an integrated voltage regulator 18. A diesel engine started by an electric starter is equipped with such an generator. To provide the possibility of connecting a relay, blocking the starter, this generator is equipped with an additional output, the voltage of which, when the generator is idle and the battery connected, has a value insufficient for the electromagnetic valve to operate.

The power plant operates as follows.

When starting and warming up 'starting engine 2, the solenoid valve 8 is open and fuel from the tank 5 through pipeline 7 flows by gravity to the carburetor 6 of the starting engine 2. By turning on the power transmission 4, the torque of the starting engine 2 is transmitted through the flywheel 3 to the crankshaft 14 _to diesel 1 starts . At the same time, the rotation of the crankshaft 14 through the V-belt 12 is transmitted to the generator 10, which begins to generate current. Upon reaching a certain magnitude of the current in the circuit of the electromagnetic valve, it operates and shuts off the fuel supply to the carburetor 6 of the starting engine 2. The pipeline 7 is closed during the whole time of the operation of diesel 1. The timing of the operation of the electromagnetic valve 8 is determined by the moment at which the speed of the crankshaft 14 of the diesel engine 1 will reach a value sufficient for its independent work. The coordination of these moments is ensured by the selection of the parameters of the matching element, in particular resistance 17, taking into account the flow of the current characteristics of the generator 10.

₅ After the diesel engine 1 stops, the generator 10 stops generating current, the electromagnetic valve 8 opens and the pipeline 7 is filled with fuel. Starting engine 2 is prepared for the next start.

Thus, the proposed installation can improve the safety of its operation by automating the shutdown of the fuel supply to the starting engine after starting the diesel engine.

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Claims (2)

(54) POWER INSTALLATION 38 The power supply system of a diesel engine is 1 single-wire and contains a direct current source (rechargeable battery 9), an alternator 10, and electricity consumers 1. The generator 10 is mounted on the diesel 1, driven by the V-belt 12 from the pulley 13 of the crankshaft 14 and provided with two terminals 15 and 16. Terminal 15 is connected to the battery 9 and consumer 11, and terminal 16 to the electromagnet. In order to standardize the generator of alternating current with integrated voltage regulator 18. It is possible to use a diesel engine, which is powered by the squeak 1 | xN; tarter. To enable a relay to be connected. starter blocking, this generator is equipped with an additional output, the voltage on which, when the generator is not working and the battery is connected, has a voltage insufficient to operate the solenoid valve. The power plant works in the following way. When starting and warming up the start-up engine 2, the solenoid valve 8 is opened and fuel is fed from tank 5 through line 7 by gravity to the carburetor 6 of the starting engine 2. By switching on the power transmission 4, the torque of the starting engine 2 is transmitted through the flywheel 3 to the crankshaft 14 Diesel 1 starts . At the same time, the rotation of the crankshaft 14 through the V-belt 12 is transmitted to the generator 10, which begins to absorb current. When a certain amount of current is reached in the solenoid valve circuit, it manufactures and shuts off the fuel supply to the carburetor 6 of the starting engine 2. Pipeline 7 is shut off during the entire diesel engine 1. The moment of operation of the electromagnetic valve 8 is determined by the moment that the crankshaft rotation frequency 14 diesel 1 will reach a value sufficient for its independent operation. Coordination of these moments is provided by selecting the parameters of the matching element, in particular the resistance 17, taking into account the flow characteristics of the generator 10. After stopping the diesel 1, the generator 10 stops generating current, the solenoid valve 8 opens and the pipeline 7 is filled with fuel. Start the engine 2 prepared. Pen for the next start. Thus, the proposed installation allows to increase the safety of its operation by automating the shut-off of the fuel supply to the starting engine after starting the Diesel engine. Claim 1. Power installation, diesel engine, its power supply system, equipped with a direct current source and connected to it with its output, kinematically connected to a generator with a diesel engine, and nycKOBdi engine, equipped with a tank installed above the starting engine and associated with it a carburetor using a pipeline in which the valve is placed, which is different from that in order to increase safety of operation by means of automatic shutting off the fuel supply to the engine start-up after starting the engine l, a generator provided with an additional outlet, the blocking member is designed as a solenoid valve, and the latter is connected to a further terminal through the circuit. 2. Installation under item 1, characterized in that, in the electrical circuit of the electromagnetic valve, an additional element, for example, resistance, is included. Sources of information taken in. Attention n {w expertise. i; Tractors Belarus MTZ-80, 82, 80L, 82L. Minsk, Harvest, 1973, p. 24, 3537, 74-80.