SU826063A1 - I.c.engine supply system - Google Patents

Description

(54) POWER SUPPLY SYSTEM FOR INTERNAL COMBUSTION ENGINE

I

The invention relates to engine-building, in particular to power systems.

Power systems for an internal combustion engine are known, comprising a housing with a mixing chamber and a sprayer and a throttle valve disposed therein, a current source and electrodes, one of which is placed on the sprayer and the other on the stand of the mixing chamber.

In such systems, the electrodes, while improving blending, do not affect fuel consumption.

Power systems for an engine are also known, comprising a housing with a mixing chamber and dispersed therein; a motor and a throttle valve, a current source with a device for changing voltage, connected to the sensors of the engine operating mode, and electrodes located in the atomizer connected to the current source 2.

However, in such systems, additional devices are installed for fuel metering, in connection with which they are structurally complex and do not provide the required composition of the fuel mixture in various engine operating modes. The purpose of the invention is to simplify the design of the system and increase the accuracy of fuel metering.

This goal is achieved by the fact that the atomizer is provided with a plate made of a material with high electrical resistivity and having capillary channels for the passage of fuel located obliquely in the plate, and

The electrodes are placed on opposite surfaces of the plate and are made in the form of two layers with perforations coinciding with the openings of the channels.

FIG. 1 depicts the proposed power supply system for an internal combustion engine circuit; in fig. 2 is a part of the system in FIG. 1, enlarged scale; in fig. 3 - spray, cut.

The power supply system includes a unit 1 mounted on the intake pipe 2

Claims (2)

engine 3 internal combustion, current source 4 with a device for changing the input voltage (not shown) connected to the sensor 5 turns, potentiometer | s) 6 and 7, the last of which is connected with accelerator pedal 8 and resistor 9, and booster pump 10 supplying fuel from tank G1 through line 12. Unit 1 includes body 13 with mixing chamber 14 and dispenser 15 located therein a throttle valve 16 connected to the accelerator pedal 8 and a float chamber 17 connected to the pipeline 12. The atomizer 15 is provided with a plate 18 made of a material with high electrical resistivity, such as a dielectric or semiconductor, and having capillary channels 19 for passage yes fuel located in plate 18 obliquely. On opposite surfaces of the plate 18 electrodes 20 and 21 are placed, connected by wires 22 and 23 to the outlets of source 4. Electrodes 20 and 21 are made in the form of two layers with perforations coinciding with the openings of the capillary channels 19. Between the plate 18 and the sprayer 15, an insulating gasket 24 is installed. A switch 25 connected to the accelerator pedal 8 and a capacitor 26 are installed parallel to the resistor 9, and a switch 27 is installed parallel to the potentiometer 6. The system operates as follows. When the engine is operating, the air passes through the mixing chamber 14 and is mixed with the fuel coming out of the capillary channels 19. The amount of the latter is controlled by varying the voltage between the electrodes 20 and 21 produced by source 4, depending on the control signal. The flow rate of the resulting mixture is controlled by the throttle valve 16. When operating in the range from low to full revs of the engine 3 on economical compositions of the combustible mixture, the control signal is generated mainly by potentiometer 7, which is connected to the accelerator pedal 8 and, therefore, to the throttle valve 16 To obtain the maximum power of the engine 3, a switch 25 is provided, which closes when the accelerator pedal 8 is fully depressed, thereby causing an additional increase in the control signal due to shunting resistor 9. With a sharp opening of the throttle valve 16, a jump-like increase in the control signal by the capacitor 26 and, consequently, a sharp enrichment of the mixture (similar to the operation of the accelerator pump) occurs. Engine idle speed is controlled by potentiometer 6. When cold engine is started, potentiometer 6 is bridged by switch 27. Engine speed sensor 5 ensures that fuel is completely stopped in idle mode when the control signal is less or equal to the maximum possible idle signal course, and the number of revolutions of the engine is greater than the value corresponding to the idling mode. In this case, the polarity of the voltage on the plate 18 is reversed to completely cut off the fuel supply. Since the capillary channels 19 are inclined, the electric field generated by the electrodes 20 and 21 affects the entire amount of fuel in the capillary channels 19, which improves the accuracy of the fuel metering. Thus, the power supply system has a simple constructive implementation and provides the required mixture composition in all engine operating modes. Claims of Invention A power supply system for an internal combustion engine, comprising a housing with a mixing chamber and a sprayer and throttle valve disposed therein, a current source with a voltage varying device associated with an engine operating sensor, and electrodes located in the sprayer connected to the current source , characterized in that, in order to simplify the design and increase the accuracy of fuel metering, the sprayer is equipped with a plate made of a material with high specific electric resistance and having capillary channels for the passage of fuel, located in the plate obliquely, with the electrodes placed on opposite surfaces of the plate and made in the form of two layers with perforations coinciding with the openings of the channels. Sources of information taken into account in the examination 1. Published for Germany No. 2428967, cl. F 02 M 27/04, published. 1976. 2. Published for the Federal Republic of Germany No. 2715222, cl. F 02 M 27/04, published. 1977. / J 18 4  / f5 i6