RU2327893C1 - Internal combustion engine fuel system - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: internal combustion engine fuel system contains a common housing, a casing of jets and solenoid valves with feed channels, a casing of an air piston assembly, a needle-jet casing, a fuel casing. The engine fuel system common housing attached to the engine manifold incorporates the jets casings and those of solenoid valves. The air piston assembly casing incorporating a cylinder with an orifice is linked to the driver's pedal is fitted above the common housing, the cylinder closing the orifices. The needle jet, thanks to rarefaction in starting the engine, suck in fuel from the fuel chamber and pulverises it, while the air piston assembly feeds air-fuel mix at whatever speeds and loads.

EFFECT: lower fuel consumption and higher engine output.

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Description

The invention relates to the field of engine building, in particular to power systems for internal combustion engines.

A known power system for an internal combustion engine, selected by the applicant as a prototype, comprising a carburetor comprising a housing with supply channels, an air damper, an electromagnetic valve (USSR copyright certificate No. 1830108, publ. 23.07.1993).

The disadvantage in the above system is that it does not provide the required quantitative and qualitative composition of the air-fuel mixture supplied to the engine both at idle and under load, which leads to increased fuel consumption and reduced engine power. The objective of the invention is to increase engine power by improving the mixture formation of the air-fuel mixture and its more complete combustion and increasing the efficiency of the internal combustion engine.

The problem is achieved due to the fact that in the known power system for an internal combustion engine containing a common housing, a housing of nozzles and solenoid valves with supply channels, an air piston pair housing, a needle-needle housing, a fuel chamber, to a common housing of a power supply system for an engine of internal combustion, fixed to the engine manifold, the body of the nozzles and the electromagnetic valves are fixed, on top of the common body is the body of the air piston pair, in which the cylinder is located with rstii and having a mechanical connection with the pedal in the driver’s cab, the piston blocking the holes, and the needle-nozzle is able to pull fuel from the fuel chamber and spray it due to rarefaction when starting the engine, and the air-piston pair is able to supply fuel-air at all revolutions, loads and modes mixture.

This will not allow atmospheric air to pass. Air from the air filter should only come in when the piston opens the holes on the air cylinder, from depressing the pedal in the driver's cab. Solenoid valves are installed in the housing of the jets and electromagnets. They open and close the fuel supply, from a mechanical device or electronic, from pressing the pedal in the driver's cab.

Figure 1-3 shows the design of the proposed power supply system of the internal combustion engine, where:

1 - common building,

2 - the housing of the nozzles and solenoid valves,

3 - the housing of the air-piston pair,

4 - cylinder

5 - the piston,

6 - air filter,

7 - the body of the needle-nozzle,

8 - jet needle,

9 - air-fuel channel,

10 - fuel chamber,

11 - cylinder bores,

12 - screw fastening the nozzles,

13 - valves

14 - the core of the electromagnetic valve

15 - valve return spring,

16 - electromagnetic coil

17 - stub channel

18 - fuel fitting,

19 - return piston spring,

20 - a plug of the air cylinder,

21 - guide sleeve of the piston rod,

22 - piston rod

23 - filter element.

The power supply system for the internal combustion engine consists of a common housing 1, which is fixed to the engine manifold, housing of the nozzles and solenoid valves 2 are fixed to the common housing 1, the housing of the air-piston pair 3, in which the cylinder 4 and the piston 5 is located, is mounted on top of the common housing 1 , air filter 6. On the housing of the nozzles and solenoid valves 2, the housing 7 of the needle-nozzle is inserted and fixed by the screw for fastening the nozzles 12. An electromagnetic coil is installed on the body of the nozzles and the solenoid valves 2 ka 16, inside the body of the nozzles and solenoid valves there is a valve 13 with the core of the electromagnetic valve 14, the return spring of the valve 15. In the lower part of the body of the nozzles and solenoid valves 2 there is a fuel chamber 10, a fuel nozzle 18. On the one hand, the air cylinder 4 has an air plug cylinder 20, piston 5 with piston return spring 19 and piston rod guide 21, piston rod 22 with cylinder bores 11, air filter 6, filter element 23.

The power system for an internal combustion engine operates as follows.

When the engine starts, a vacuum is created in its cylinders. The same vacuum occurs in the common housing of the fuel supply system 1. The same vacuum is created in the air filter 6, on the air-piston pair 4, in the channels of the body of the nozzles and solenoid valves 2. When the engine starts, the electromagnetic idle coil 16 is turned on by electrical contacts. overcoming the force of the return spring 15, the core 14 of the valve 13 opens a through air-fuel channel 9. Atmospheric air creates a vacuum on the fuel needle 8 and pulls the atomized fuel from the fuel chamber 10. This air mixture enters the common casing of the fuel system 1 and further into the engine cylinders. The engine starts to idle. When you press the pedal in the driver’s cab, which is mechanically connected to the air piston 5, the piston begins to move smoothly, opening the holes 11 on the air cylinder 4. Atmospheric air begins to flow into the housing 1. This air is mixed with the air-fuel mixture coming from the air -fuel channel 9. This mixture acquires a volume ratio of 1:15, which is the best explosive mixture. Such a mixture instantly completely ignites and creates maximum power. Thus, with the addition of additional air, the engine begins to increase speed and power. The increase in speed increases the vacuum at the inlet air-fuel channel 9 and increases the thrust of the fuel from the nozzle-nozzle 8. This increase in speed and power occurs to the full limit of the performance of the needle-nozzle 8. When the limit of its productivity comes, at this moment from the device on the pedal to the driver’s cab turns on an electrical contact and supplies power to the coil winding of the next core of the electromagnetic valve 13, it retracts, opens the needle-nozzle 8-2, rushing air into the inlet air-fuel Channel 9-2 sprayer draws fuel from the second fuel chamber through the atomizer nozzle-needle. Thus, the fuel supply with air to the engine cylinder increases to the required limit of power and speed. When lowering the pedal, the piston 5 moves from the force of the spring 17, blocking the holes 11. This reduces the air supply. Such a change in the proportion of the air-fuel mixture decreases power, speed. With smooth pedal control, the rpm gradually increases or decreases. A sharp control leads to a sharp increase or decrease in engine speed. The order of work can be any, for example, the engine starts on gasoline, then diesel fuel, the next gas or something else. This order is suitable for particularly powerful engines of a diesel locomotive, ships.

As a result of using the proposed carburetor of an internal combustion engine, fuel economy increases to a value of about 50%, the higher the engine power, the greater the fuel economy.

Easy start of the engine, as high quality atomized fuel mixture in a proportion of 1:15.

Complete combustion of fuel occurs, which dramatically reduces the emission of CO. The proposed carburetor does not require adjustment and adjustment, which means that there is no need to check for CO, is simple to operate and highly reliable.

In the absence of a float chamber and a float in the proposed carburetor, defects are eliminated, which reach 60% in all existing carburetor modifications.

Claims (1)

A power system for an internal combustion engine, comprising a common housing, a housing of nozzles and solenoid valves with inlet channels, an air piston pair housing, a housing of a jet needle, a fuel chamber, characterized in that a common housing of a power system for an internal combustion engine is attached to a manifold the engine, the body of the nozzles and the electromagnetic valves are fixed, on top of the common body is the body of the air piston pair, in which there is a cylinder with holes and having a mechanical connection with with a rod in the driver’s cabin, a piston blocking the openings, and the nozzle-nozzle is capable of pulling fuel from the fuel chamber and spraying it due to rarefaction when starting the engine, and the air-piston pair is capable of delivering a fuel-air mixture at all revolutions, loads and modes.

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