RU202524U1 - Rotary vane internal combustion engine - Google Patents

Abstract

The utility model relates to engine building and can be used in automotive, construction, agricultural, military equipment and other fields. The technical result is a high liter power density. The essence of the utility model lies in the fact that a rotary vane internal combustion engine contains a toothed twin-rotor engine, on each rotor 9 of which there is one working tooth, synchronization and gas distribution systems. The proposed solution consists of three sequentially connected sections 1, 2, 3, while the first section includes a two-rotor gear motor with the ability to perform the function of a compressor, the second section includes a synchronization system, which consists of drive gears 25 fixed on the shafts 10 of each rotor 9, and two driven gears 27, 28, and the gear ratio of the driving gear to the driven gear is 1: 2, and the gear ratio of the synchronization system is generally 1: 1, and the second section also includes a gas distribution system, in which the intake 16, exhaust 22 and bypass 18, 20, the holes are arranged with the ability to open and overlap by the body of the driven gears 27, 28, on which slots 29, 30, 33, 34 and notches 31, 35 are made in the form of arcs, and the third section includes a combustion chamber 5 and a receiver 4 of a combustible mixture. 9 ill.

Description

The utility model relates to engine building and can be used in automotive, construction, agricultural, military equipment and other areas where high liter and specific power, as well as fuel efficiency, are required.

Known rotary two-chamber internal combustion engine (RF patent for invention No. 2539412, publ. 20.01.2015, bull. No. 2), which contains a rotor, separating wheels and mating gears located in a stationary stator-crankcase with inlet, outlet and combustion chamber ... The rotor consists of two cylindrical impellers on one shaft. The combustion chamber is located between these wheels and due to the shape of the impellers, the combustion chamber is periodically closed for engine operation. The impellers are two cylinder segments of different diameters, the axes of which are aligned with the axis of the rotor shaft. The separating wheels are in the form of two segments of cylinders of different diameters with a common axis, the surface of the larger of which rolls over the surface of the smaller segment of the rotor impeller cylinder. The diameter of the larger segment of the dividing wheel cylinder is equal to the diameter of the smaller segment of the impeller cylinder.

The disadvantages of the known engine are: its low power, large

dimensions, high specific fuel consumption, low thermal efficiency of the operating cycle, engine complexity.

Known single-stroke rotary compressor internal combustion engine,

adopted as a prototype (RF patent for inventions No. 2470167, publ. 20.12.2012, bull.

No. 35), which contains a compressor, a two-rotor gear motor, a system

gas distribution, synchronizing unit (synchronization system), power supply system,

cooling, lubrication and control, in which intake, air compression and exhaust

exhaust gases are carried out simultaneously with the working stroke. On each rotor

gear two-rotor internal combustion engine installed one at a time

working tooth, and before entering the combustion chamber formed between the touch line

cylindrical walls of rotors with casing walls, working surfaces of two teeth

and the outer cylindrical wall of the gas distribution drum, located

gas distribution drum in the form of a hollow cylinder with a fixed inside

impeller that rotate in an air cushion. At the same time, compressed air

coming from the receiver of the screw compressor used in the engine as

external source of compressed air, supplied to the gas distribution drum through

a hole in the end wall, from where it enters the combustion chamber through the bypass channel located along the cylindrical wall of the gas distribution drum.

Disadvantages of the prototype: low engine power, large dimensions, high specific fuel consumption, low thermal efficiency of the operating cycle, and the complexity of the engine design.

The following set of prototype features coincides with the essential features of the utility model: a toothed two-rotor engine, on each rotor of which one working tooth is made, synchronization and gas distribution systems.

The utility model is aimed at expanding the arsenal of tools for rotary vane internal combustion engines.

This is achieved by the fact that the rotary vane internal combustion engine contains a toothed two-rotor engine, on each rotor of which there is one working tooth, synchronization and gas distribution systems. The proposed solution consists of three sections connected in series, while the first section includes a two-rotor gear motor with the ability to perform the function of a compressor, the second section includes a synchronization system, which consists of drive gears attached to the shafts of each rotor, and two driven gears, and the drive gear ratio gears to the driven ones is 1: 2, and the gear ratio of the synchronization system as a whole. 1: 1. Also, the second section includes a gas distribution system, in which the inlet, outlet and bypass openings are arranged so that they can be opened and closed by the body of the driven gears, on which slots and notches are made in the form of arcs, and the third section includes a combustion chamber and a receiver of a combustible mixture.

The intake, exhaust and bypass openings are opened and closed by the body of the driven gears itself, providing the functions of the gas distribution mechanism. The combustion process is separated from the stroke of the working stroke into an independent process (stroke) in the combustion chamber with an increase in the time (or phase) of the combustion of the mixture in the isochoric process. The blowing device is made controllable so that it opens into the blowing pipe connected to the atmosphere, which provides blowing of the combustion chamber from exhaust gases, and closes before opening the combustion chamber valve for a time sufficient to fill the combustion chamber with a compressed combustible mixture from the receiver.

The essence of the utility model is illustrated by drawings, where

figure 1 shows an engine consisting of three sections;

figure 2 is a section a-a in figure 1;

in fig. 3 - section b-b in figure 1;

figure 4 is a section b-b in figure 1 (third section);

figure 5 - section Г-Г in figure 1 (third section);

6 is a schematic representation of the engine operation: a) the beginning of the working stroke and the beginning of compression, b) the end of the working stroke, the end of the compression and filling of the receiver, c) the beginning of the intake of the combustible mixture, the beginning of the release of exhaust gases, as well as the beginning of the bypass of the combustible mixture from receiver into the combustion chamber and purging the combustion chamber, d) the end of the inlet of the combustible mixture, the end of the exhaust gas outlet, the end of the purge and bypass.

The rotary vane internal combustion engine consists of three sections connected in series 1. 2 and 3. The first section 1 includes a two-rotor gear motor with the ability to perform the function of a compressor. The second section 2 includes timing and timing systems. The third section 3 contains a receiver 4 of the combustible mixture and a combustion chamber 5. Sections 1, 2 and 3 are fixed to each other, for example, by bolts 6.

The first section 1 contains a housing 7 with a cover 8. The housing contains two rotors 9, which are rigidly fixed on the output shafts 10. Each of the two rotors 9 has one working tooth 11. Rotors 9 form between the line of contact of the cylindrical walls of the rotors 9, the walls the housing 7, the working surfaces of the two teeth 11 and the outer cylindrical wall of the housing 7 are hermetically sealed volumes, forming the chambers 12 for the inlet of the combustible mixture, the chamber 13 for compressing the combustible mixture, the chamber 14 of the working stroke and the chamber 15 for the exhaust gases. In the first section 1 there are holes 16 of the valve 17 for the inlet of the combustible mixture, the hole 18 of the bypass valve 19 of the compressed combustible mixture and the receiver 4. hole 20 of the valve 21 of the combustion chamber 5 for supplying the burnt gases under high pressure from the combustion chamber 5 to the chamber 14 of the working stroke and opening 22 of valve 23 for exhausting exhaust gases into the atmosphere.

The second section 2 contains a housing 24, in which the drive gears 25 are fixed on the output shafts 10. On the shafts 26, installed in the housing 7, and passing through section 3, two driven intermediate gears of the synchronization system are fixed: upper 27 and lower 28. On the upper 27 and lower 28 intermediate gears that perform the functions of the gas distribution system, slots and notches are made in the form of arcs , the radii of which coincide with the radii measured from the axis of the shaft 26 to the holes 16. 18. 20. 22 valves 17, 19, 21, 23 of the gas distribution system. The angular lengths of the arcs of the slots and notches are determined based on the duration of the opening and closing times of the valves of the gas distribution system. The upper intermediate gear 27 has a slot 29 for controlling a valve 23 for exhausting exhaust gases to the atmosphere, a slot 30 for controlling a valve 19 bypassing a compressed combustible mixture into a receiver 4, a cutout 31 for controlling a valve 32 bypassing a combustible mixture from a receiver 4 to a combustion chamber 5. Lower intermediate gear 28 has a slot 33 for controlling the valve 17 for the inlet of the combustible mixture, a slot 34 for bypassing high-pressure burnt gases from the combustion chamber 5 to the working stroke chamber 14, a cutout 35 for controlling the valve 36 for purging burnt gases from the combustion chamber 5 through the purge pipe 37 into atmosphere.

The synchronization system of the second section consists of driving gears 25, fixed on the shafts 10 of each rotor 9. and two driven gears 27 and 28. Moreover, the gear ratio of the driving gear 25 to the driven gears 27 and 28 is 1: 2. The gear ratio of the synchronization system is generally 1: 1. The gas distribution system of the second section includes an inlet 16. outlet 22 and bypass openings 18 and 20, which are arranged so that they can be opened and closed by the body of the driven gears 27 and 28. on which slots and cutouts are made in the form of arcs

Inlet 38 and outlet 39 manifolds pass through section 3. Third section

contains a housing 40, in which a receiver 4 and a combustion chamber are made 5. On the receiver

an opening 41 of the valve 19 is made to receive a compressed combustible mixture from the compression chamber 13 of the combustible mixture, as well as the outlet 42 of the bypass valve 32 between the receiver 4 and the combustion chamber 5 through the bypass channel 43 made in the housing 40 of the third section 3. On the combustion chamber 5 is installed a spark plug 44, and an opening 45 of a valve 21 is made for supplying burnt gases under high pressure from a combustion chamber 5 to a working stroke chamber 14 and an opening 46 of a valve 36 for purging burnt gases from a combustion chamber 5 through a channel 47 and a purge pipe 37 into the atmosphere.

The valve 17 for the intake of the combustible mixture consists of an intake manifold 38, a slot 33 in the gear 28 and an opening 16 in the intake chamber 12.

The valve 19 bypassing the compressed combustible mixture into the receiver 4 consists of a hole 18 in the compression chamber 13, a slot 30 in the gear 27 and an opening 41 on the receiver 4.

The valve 21 of the combustion chamber 5 for supplying burnt gases under high pressure from the combustion chamber 5 to the working stroke chamber 14 consists of an opening 45 on the combustion chamber 5, a slot 34 on the gear 28 and an opening 20 in the working stroke chamber 14.

The valve 23 for exhausting exhaust gases to the atmosphere consists of an opening 22 in the exhaust chamber 15, a slot 29 on the gear 27 and an exhaust manifold 39.

The valve 32 bypassing the combustible mixture from the receiver 4 to the combustion chamber 5 consists of the outlet 42 of the receiver 4. cutout 3 I on the gear 27 and the bypass channel 43.

The valve 36 for purging the burnt gases from the combustion chamber 5 through the purge pipe 37 into the atmosphere consists of a cutout 35 on the gear 28, an opening 46, a channel 47 and a purge pipe 37.

The ignition contact 48 is fixed on the housing 40, and the ignition protrusion 49 is fixed on the shaft 26.

The order of operation of the engine, consisting of 6 sections 1, 2 and 3 connected in series with bolts:

a) Initial position (Fig. 6 a)

valves 17.19.21.23.32.36 are closed.

the combustion chamber 5 is filled with a combustible mixture under pressure,

ignition lug 49 has closed ignition contact 48.

spark plug 44 is energized.

a combustible mixture burns in the combustion chamber 5,

the teeth 11 of the rotors 9 are in the working stroke chamber 14,

the compression chamber 13 is filled with a combustible mixture.

b) the beginning of the working stroke and compression (Fig. 6 a) and the end of the working stroke and compression (Fig. 6 b). Rotation of the rotors 9 between the housing 7 of section 1 and the cover 8 together with the output shaft 10 by 270 ° does useful work. Gears 27 and 28, fixed on the shaft 26, through the synchronization gears 25 rotate in the housing 24 of section 2 by 135 °.

- the slot 34 of the gear 28 opens the valve 21. Gases under pressure from the combustion chamber 5 through the slot 34 of the gear 28 and the hole 20 enter the working stroke chamber 14. The working stroke begins in the working stroke chamber 14 and the compression stroke in the compression chamber 13.

- a little before the end of the compression stroke, the slot 30 of the gear 27 opens the valve 19 bypassing the compressed combustible mixture from the compression chamber 13 through hole 18 and the slot 30 in the gear 27 and hole 41 into the receiver 4. The receiver 4 is being filled with a compressed combustible mixture, and when When the end of the compression stroke is reached, the valve 19 is closed by means of the slot 30.

- after turning the disc 28 by 135, the valve 21 is closed by means of the slot 34 of the gear 28. The stroke of the working stroke is completed.

- teeth 11 of the rotors 9 in the compression chamber 13.

c) See fig.6b - the end of the working stroke and compression, fig.bv - the beginning of the intake of the combustible mixture and the release of exhaust gases. Rotation of rotors 9 by 90 ° from 270 ° to 360 °, and gears 27 and 28 by 45 ° from 135 ° to 180 °, while teeth 11 at the point of contact of rotors 9 pass from compression chamber 13 to intake chamber 12. All valves 17 , 19,21,23,32,36 closed.

d) See fig.bv - the beginning of the intake of the combustible mixture and the release of exhaust gases, fig.bg - the end of the intake of the combustible mixture and the end of the exhaust of exhaust gases. Rotation of rotors 9 by 270 ° from 360 ° to 630 °, and gears 27 and 28 by 135 ° from 180 ° to 315 °. There are strokes of the intake of the combustible mixture and the release of exhaust gases

- teeth 11 of rotors 9 in the intake chamber 12

- the slot 33 of the gear 28 opens the intake valve 17. The combustible mixture through the intake manifold 38, the slot 33 on the gear 28 and the hole 16 enters the intake chamber 12,

- the slot 29 of the gear 27 opens the exhaust valve 23. Exhaust gases from the exhaust chamber 15 through the opening 22. the slot 29 on the gear 27 enters the exhaust manifold 39,

- cutout 31 of gear 27 opens the valve 32 bypassing the combustible mixture from the receiver 4 into the combustion chamber 5. The combustible mixture from the receiver 4 through the cutout 31 of the gear 27 and the hole 42 flows through the bypass channel 43 in the housing 40 of section 3 into the combustion chamber 5,

- cut 35 of gear 28 opens the purge valve 36 for a short time

combustion chambers 5 from burnt gases through opening 46, channel 47 in the body 40 of the section

3 and purge connection 37.

- cut 31 of gear 27 closes the bypass valve 32 after filling the combustion chamber 5 with a combustible mixture.

- teeth 11 of rotors 9 in the outlet chamber 15.

- slot 33 gear 28 closes the intake valve 17,

- slot 29 of gear 27 closes the release valve 23.

e) See Fig. 6d - the end of the inlet of combustible gases and the end of the exhaust of exhaust gases, fig.b - the beginning of the working stroke and compression. Rotation of rotors 9 by 90 ° from 630 ° to 720 °, and gears 27 and 28 by 45 ° from 315 ° to 360 °, while the teeth 11 at the point of contact of the rotors 9 move from the outlet chamber 15 to the working stroke chamber 14.

- valves 17.19.21.23.32.36 closed.

- the combustion chamber 5 is filled with a combustible mixture under pressure,

- the ignition lug 49 has closed the ignition contact 48,

- the spark plug 44 is energized.

- a combustible mixture burns out in the combustion chamber 5,

-the teeth 11 of the rotors 9 are in the chamber of the working stroke 14,

- the compression chamber 13 is filled with a combustible mixture.

The engine is in the starting position.

Angular values are approximate.

Thus, the utility model simplifies the engine manufacturing technology by assembling it from three separate sections 1, 2 and 3; reduction of engine vibration due to the fact that the stroke and the compression stroke occur in adjacent chambers 14 and 13 simultaneously; elimination of failures in the operation of synchronization and gas distribution systems due to the fact that the synchronization system consists of driving gears 25, fixed on the output shafts 10 of each rotor 9, and two driven gears 27 and 28. performing the functions of the gas distribution system; increasing the reliability of the gas distribution system due to the fact that the valves 17, 19, 21. 23. 32. 36 open and overlap by the body of the driven gears 27 and 28; reduction of specific fuel consumption due to goyu. that the combustion process is separated from the stroke of the working stroke into an independent process (stroke) in the combustion chamber 5 with an increase in the time (or phase) of the combustion of the mixture in the isochoric process; an increase in engine power and a decrease in the temperature of the walls of the combustion chamber 5 due to the cooling action of the purge mixture by recharging the combustion chamber 5 with a combustible mixture during purging. Compensation of unbalanced centrifugal forces arising from the presence of 9 teeth 11 on the rotors is achieved by a known balancing method.

Claims (1)

A rotary vane internal combustion engine containing a toothed twin-rotor engine, on each rotor of which one working tooth is made, a synchronization and gas distribution system, characterized in that it consists of three sections connected in series, while the first section includes a gear two-rotor engine with the ability to perform the function compressor, the second section includes a synchronization system, which consists of drive gears fixed on the shafts of each rotor, and two driven gears, and the gear ratio of the drive gear to the driven gear is 1: 2, and the gear ratio of the synchronization system, in general, is 1: 1, also the second section includes a gas distribution system, in which the inlet, outlet and bypass openings are arranged with the ability to open and overlap the body of the driven gears itself, on which slots and notches in the form of arcs are made, and the third section contains a housing in which a combustion chamber and a receiver with valve holes to receive the compressed combustible mixture from the combustion chamber and the bypass valve between the receiver and the combustion chamber through the bypass channel, and a valve opening is made on the combustion chamber for supplying high-pressure burnt gases from the combustion chamber to the working stroke chamber and the opening of the combustion gas purge valve from combustion chambers through the channel and the purge pipe to the atmosphere.

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