CZ303025B6 - Internal combustion engine for combusting solid powdered fuels - Google Patents

Abstract

In the present invention, there is disclosed an internal combustion engine (1) for combusting solid powdered fuels consisting of a head part (2) and a cylinder (3) and is provided with a fuel valve (4), a flue valve (5), electromagnetic coils (6) for controlling both the fuel valve (4) and the flue valve (5), an initiating igniting source (7), a combustion chamber (8) and a piston (9) with a crank (10) connected to a machine shaft (11). The head part (2) comprises a mixing chamber (16) with an air inlet (12) and a fuel inlet (14). The mixing chamber (16) fuel inlet (14) is provided with an electromagnetic cock (15) with articulated flap and the air inlet (12) is provided with a backflow preventer (13).

Description

(57)

The internal combustion engine (1) for the combustion of solid powder fuels consists of a head part (2) and a cylinder (3) and is provided with a fuel valve (4), a flue gas valve (5), solenoid coils (6) for controlling them, an ignition source (7) , a combustion chamber (8) and a piston (9) with a crank (10) connected to the machine shaft (11). The head portion (2) comprises a mixing chamber (16) into which the air inlet (12) and the fuel inlet (14) are connected. The fuel supply (14) to the mixing chamber (16) is provided with an electromagnetic valve (15) with a hinged closure and the air supply (12) is provided with a non-return valve (13).

Z 303025 B6

C7 303025 B6

Internal combustion engine for combustion of solid powder fuels

Technical field

The present invention relates to an explosive internal combustion engine for solid combustible organic fuels, in particular wood dust.

BACKGROUND OF THE INVENTION

At present, the high energy potential of solid organic fuels in the form of dust, such as wood dust and others, is mainly used in combustion to heat. This in turn converts water into water vapor and spins the turbine, whose further objective is to convert kinetic energy into electrical or other energy. However, this principle is highly unprofitable and useless.

There have been solid-fuel engines in the form of, for example, wood dust, and with them, technical solutions to certain specific problems with such engines.

GB 271858 "Improvement of an internal combustion engine for dust fuel" solves the problem of clogging the piston face and cylinder when fuel is injected directly onto the piston face in the cylinder. As a solution, they constitute a combustion chamber in front of the cylinder into which fuel is supplied through the orifice and a pre-chamber purge nozzle is also installed there.

GB 266381 "An improvement to a pulverized-fuel internal combustion engine from the same owner then describes in detail the design of the valve, which is designed as a mechanical relief valve with suspension. Such a valve requires complicated design modifications to produce the necessary m 2 τ? Valves and valve spring compression

GB 463283 also discloses a solution with a pre-chamber, but the fuel supply is intricately controlled by a bulkhead in the premix, whereupon air is blown into the metered dose under the pressure of the piston before the mixture passes into the pre-chamber. Such a solution is complicated and unsuitable for automatic operation.

GB 275227 "Improvement in the Removal of Combustion Residues in a Pulverized Fuel Engine" further provides a solution where two air nozzles with one-way valves are introduced into the cylinder.

It is an object of the present invention to provide an internal combustion engine with an improved fuel supply and air configuration in the antechamber with optimal control of their supply.

SUMMARY OF THE INVENTION

The aforementioned drawbacks of the existing solid fuel engine types are largely eliminated by the solid-fuel combustion engine of the present invention, which is characterized in that the fuel supply to the mixing chamber is provided with an electromagnetic cock with a joint cap and the air supply to the mixing chamber is provided. check valve.

Overview of the figure in the drawing

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view of an internal combustion engine for firing solid powder fuels of the present invention.

-1 CZ 303025 B6

Example of the finding

Fig. 1 shows an internal combustion engine for the combustion of solid combustible substances 1 consisting of a head part 2 and a water-cooled cylinder 3, provided with a fuel valve 4, a flue gas valve 5, electromagnetic coils 6 for controlling them, an ignition ignition source 7, a combustion chamber 8; a piston 9 with a crank 10 connected to the machine shaft 11.

The head part 2 comprises a mixing chamber 16 into which an air inlet 12 with a non-return flap 13, a fuel inlet 14 with an electromagnetic cock 15 with a hinged cap is connected. An air purge nozzle 17 with a solenoid valve 18 opens into the mixing chamber, and the cylinder 3 is provided with two air nozzles 19 with solenoid valves 20 and non-return valves 2L.

In operation in the first phase, the piston 9 drops and generates a vacuum, thereby sucking fuel into the combustion chamber 8 through the open fuel valve 4 controlled by the electromagnetic coils 6. The fuel is mixed just prior to entering the combustion chamber 8 in the mixing chamber 16. provided with a non-return valve 13, and the fuel supply channel M is provided with an electromagnetic valve 15 with a hinged closure. Another designation can be used, ie a ball valve that resembles a joint in two positions, instead of a seated adjusting screw.

The advantage of mounting this type of electromagnetic cock 15 with a hinged cap is that

- in the open position, does not obstruct the passage and allows maximum fuel passage.

- since the design of the valve consists of precision hard materials, which are ceramic materials, there is no early wear than if the valve is classic with a rubber seal

- quick opening and closing of the valve.

The backlap ensures effective air dosing.

After the fuel is sucked by the piston 9 into the combustion chamber 8, the compressed air is injected into the mixing chamber 16 from the air nozzle 17 controlled by the solenoid valve 18. After the dead center has been overcome, the piston 9 is lifted again. is compressed in the combustion chamber 8. Immediately before ignition, air is injected into the combustion chamber 8 from air nozzles 19 controlled by solenoid valves 20. Upon reaching the upper limit of the piston 9, the fuel is ignited by the initialization device 7 and pressed down by the explosion pressure. When the piston 9 is lifted again, the exhaust valve 5 is opened by the solenoid coils 6 and the exhaust from the combustion chamber 8 is expelled, after opening the exhaust valve 5 the air is again injected into the combustion chamber 8 from air nozzles 19 controlled by the solenoid valves 20 chambers 8.

Claims (1)

PATENT CLAIMS An internal combustion engine for the combustion of solid powders (1) comprising a head part (2) and a cylinder (3) and having a fuel valve (4), a flue gas valve (5), solenoid coils (6) for actuating it, an ignition ignition source (7), a combustion chamber (8) and a piston (9) with a crank (10) connected to the machine shaft (11), the head portion (2) comprising an inlet. 9 (12), air inlet (14), mixing chamber (16) with air purge nozzle (17) with solenoid valve (18), the cylinder (3) being provided with two air nozzles (19) with solenoid valves (20) and non-return valves (21), characterized in that the fuel supply (14) is provided with an electromagnetic valve (15) with a hinged closure and the air supply (12) is provided with a non-return valve (13).