RU2366819C1 - Orlov's two-shaft rotor-blade engine - Google Patents

Abstract

FIELD: engines and pumps.

SUBSTANCE: invention relates to internal combustion engines. Proposed engine includes cylindrical housing with working medium feed and discharge openings, face covers, output shaft and two rotors. Rotor blades feature thrust surfaces to get in contact there between after expansion stroke. Two-blade rotors are fitted on output shafts that pass through face covers. The blade thrust surfaces form combustion chamber. Discharge opening accommodates a retainer to prevent rotors from moving in direction other than preset one. Retainer width along the cylinder arc does not exceed blade width. Size along the arc between the retainer stop and nearest edge of inlet equals blade width, or size along the arc between retainer stop and nearest edge of adjacent inlet makes at least the sum of sizes, along the arc, of blade width and distance between the blades when they come in contact with aforesaid thrust surfaces. For starting, the engine incorporates system consisting of compressed air cylinder, pipeline and valve to allow access into combustion chamber.

EFFECT: simpler design and higher efficiency.

3 cl, 5 dwg

Description

The invention relates to internal combustion engines and can be used as a power plant on cars, motorcycles, small motor vehicles, small boats, small aircraft.

Known rotor-vane engine containing a hollow body, in which two two-bladed rotors are located on the coaxial shafts, dividing the body cavity into chambers of variable volume and a blade communication mechanism (see copyright certificate No. 5062992/29 authors: Shalaev A.V., Artemyev M .G., Belov G.P., Kuzenny A.F., Onoprienko G.F., Osukhov O.L.).

The disadvantages of this engine are:

- large mechanical losses in the mechanism of communication of the blades,

- insufficient resistance of the planetary gear to alternating shock loads.

The closest in technical essence to the present invention is a rotary engine containing a cylindrical housing with channels for supplying and discharging the working medium and end caps, two single-blade rotors placed on the shaft with the formation of the working chambers. The hubs of the rotors are equipped with single-acting couplings for the possibility of transmitting torque to the shaft. A gear contour is made under each hub on the shaft. Lever mechanisms with springs are placed on the blades with the ability to engage with the gear shaft circumference, as well as the elastic elements by which the blades are in contact at the end of the stroke (see copyright certificate No. 95105837 IPC F01C 001/063, F01C 009/00, F01C 019 / 10 author Pechenegov Yu.L.).

The disadvantages of this engine are:

- imbalance of single-blade rotors, which leads to increased vibrations and breakdowns;

- the unreliability of the lever mechanisms with springs located on the blades connecting the latter with the shaft, as they are exposed to high-temperature combustion of the working medium.

SUMMARY OF THE INVENTION

The aim of this invention is to develop a simple in design, reliable rotary vane engine with a long service life, low specific gravity (kg / hp).

The technical result is the simplicity of the design, since in the proposed engine there are no complex, previously unknown, structural elements. The absence of additional mechanisms to ensure operation makes it possible to obtain a simple-to-use, reliable in operation, with a low specific gravity index (kg / hp), surpassing all known designs and the engine in these parameters.

The proposed rotary vane engine contains:

- a cylindrical body with windows for supplying the working mixture and exhaust gas with a stopper placed in the last dog, preventing the blades from rotating in the opposite direction. The dog is made as a lever swinging on the axis. The small lever arm, under which the spring pressing it is located, is actually a stopper dog. The large shoulder is a valve that closes the outlet window during the passage of the blade above it, and as it passes over the blade dog, the pressure on the valve from the gases in the cavity will increase, thereby increasing the moment and reducing the time the dog is put into working position and the window opens at the end passage of the blade. The width of the dog along the arc of the cylinder does not exceed the width of the blade, the size along the arc between the dog stop and the near edge of the inlet is equal to the width of the blade along the arc or less than the sum of the dimensions of the width of the blade and the distance when they contact the stops. A spark plug and a hole of compressed air or gas for starting the engine are located in the housing, so that it opens with a blade before it begins to make a working stroke,

- end caps with installed shaft bearings,

- two output shafts on which the two-bladed rotors are fixedly mounted, having thrust surfaces on the blades, with which they are in contact at the end of the working stroke with the formation of the calculated cavity of the combustion chamber.

Appendix No. 2

The engine starting system consists of a cylinder of compressed air or gas with a pressure of 25-30 kgf / cm ² , a valve and connecting them to the pipeline body.

For working on compressed air or in a pair in a cylindrical case, there are two symmetrically located inlet windows and two equally symmetrically arranged outlet windows of the working medium, with the dogs placed in them, and the size along the arc between the dog stop and the proximal edge of the adjacent inlet is not less than the sum the dimensions along the arc of the width of the blade and the distance between the blades when they touch the stops, but not more than the sum of the two blades and the distance between them when they touch.

Output shafts can be both bilateral, with respect to the housing, and single-sided - coaxial design. In the second case, a summing flywheel and a single output shaft can be installed on them through overrunning couplings.

Thus, a rotary vane engine containing a cylindrical housing with windows for supplying and discharging the working medium, end caps, an output shaft passing through them, two rotors, thrust surfaces are made on the rotor blades, with which the blades are in contact at the end of the stroke of the working stroke, differs in that the rotors are made of two-bladed and rigidly fixed to the output shafts passing through the end caps, the thrust surfaces of the blades form a combustion chamber in an adjacent cavity, and a dog-st then, preventing the blades from moving in the opposite direction to the specified one, the width of the stopper dog along the arc of the cylinder does not exceed the width of the blade, and the size along the arc between the stop of the stopper dog and the near edge of the inlet is equal to the width of the blade along the arc or the size along the arc between the stop of the dog the stopper and the proximal edge of the adjacent inlet opening is not less than the sum of the dimensions along the arc of the blade width and the distance between the blades when they contact the abutment surfaces, and for starting the engine is equipped with a system consisting of a ball on with compressed air, a pipeline and an intake valve to the combustion chamber.

On the coaxial output shafts through overrunning couplings, a summing flywheel can be installed with a single output shaft mounted on it.

For operation on compressed air or steam, the engine may have two symmetrical supply windows and two also symmetric windows with stop dogs for discharging the working medium.

The invention is illustrated graphic materials.

In Fig.1, 2 shows a cross section of the engine.

Figure 3 shows the bilateral arrangement of the output shafts 13 and 14.

Figure 4 - one-sided coaxial arrangement of the shafts 13 and 14, freewheel clutch 15 connecting the shafts with the flywheel 17 and a single output shaft 18.

Figure 5 shows an engine for operation on compressed air or steam.

The proposed engine contains (Fig. 1) a cylindrical housing 12 with windows for supplying a working medium 6 and exhaust gas 7 with a stop dog 5, an opening 8 for inlet of compressed air or gas when starting the engine and spark plugs 3. End caps are not shown in the diagram, as have no novelty. Two output shafts 13 and 14 of FIG. 3, on which two-bladed rotors 1 and 2 with blades 1 ¹ , 1 ² and 2 ¹ , 2 ² , on which the thrust surfaces 4 are made, sit.

The engine starting system, consisting of a cylinder 10 and a crane 9.

To work on compressed air or steam (figure 5) in the housing 12 there are two windows - inlet 6 and outlet 7 of the working medium with dog-stops 5.

The proposed rotary-blade twin-shaft engine operates as follows (figure 1):

Duty cycle

The rotation of the blades is only possible in the direction of the arrow. Movement in the opposite direction is prevented by the dog-stopper 5.

In zone A (combustion chamber), the compressed working mixture is ignited with a spark plug 3. The pressure increasing to the working, affects the blades 1 ¹ and 2 ¹ . The blade 2 ¹ remains in place. The dog-stopper 5 prevents its movement in the opposite direction. The blade 1, making a working stroke, moves to the position shown in figure 2. When the blades are in contact with their thrust surfaces 4, in the zone B the exhaust gases of the previous cycle are released, in the zone C - the absorption of the working mixture, in zone D - the compression of the working mixture.

Further, in contact with the thrust surfaces 4, due to the inertia of the rotor 1 (blades 1 ¹ and 1 ² ), the rotors 1 and 2 move and occupy the position shown in Fig. 1 and the duty cycle is repeated.

Engine start

After stopping the engine and equalizing the pressure in the cavities formed by the blades, they will occupy the position shown in FIG. 2: rotor 2 with solid lines, rotor 1 with dashed lines.

To start the engine, you must turn on the ignition and open the valve 9. The pressure from the cylinder 10 into the cavity A sets in motion the blade 1 ¹ (dashed line of FIG. 2), it comes into contact with the blade 2 ² and the engine then comes into position - in figure 1 .

In this case, compression occurs in cavity G, and in the cavity B, the first portion of the working mixture is absorbed. When the rotors are again scrolled from the cylinder 10 into the zone A, the compressed working mixture already comes, which is ignited by the candle 3 and the engine starts to work. From the pressure in zone A, the cylinder 10 is replenished with gases. The valve 9 closes at the same time as the ignition is turned off.

In an engine running on compressed air or steam (Fig. 5), a working medium is supplied through the inlet 6 of the working medium in the cavities A and B. The rotor 2 (blades 2 ¹ and 2 ² ), held by the dog-stops 5, remains in place, and the rotor 1 (blades 1 ¹ and 1 ² ) moves, touches the thrust surfaces 4 with the rotor 2, brings it into joint movement. At the same time, the spent working medium is discharged from the cavities B and D, the blades 2 ¹ and 2 ^{2 are} first blocked and then the inlet windows for supplying the working medium 6 are opened again. The blades 1 ¹ and 1 ² abut against the dog-stoppers 5. The duty cycle is repeated.

The proposed design of a twin-shaft rotary vane engine has several advantages over existing ones:

- simplicity of design, and hence the technology of its manufacture,

- low specific gravity (kg / hp),

- high efficiency, because no energy conversion mechanisms.

This will allow it to be used in cars, motorcycles, small motor vehicles, small vessels, and small aircraft.

Claims (3)

1. A rotary vane engine comprising a cylindrical body with windows for supplying and discharging a working medium, end caps, an output shaft passing through them, two rotors, thrust surfaces are made on the rotor blades, with which the blades contact at the end of the stroke of the working stroke, characterized in that the rotors are made of two blades and are rigidly fixed to the output shafts passing through the end caps, the thrust surfaces of the blades form a combustion chamber in an adjacent cavity, and a stopper dog is installed in the outlet window, the width of the dog-stopper along the arc of the cylinder does not exceed the width of the blade, and the size along the arc between the stop of the dog-stopper and the near edge of the inlet is equal to the width of the blade along the arc or the size of the arc between the stop of the dog-stopper and the proximal edge of the adjacent inlet is not less than the sum of the dimensions along the arc of the blade width and the distance between the blades when they contact the abutment surfaces, and for starting the engine is equipped with a system consisting of a compressed cylinder m air, pipeline and valve inlet into the combustion chamber. 2. The engine according to claim 1, characterized in that a summing flywheel with a single output shaft fixed to it is installed on the coaxial output shafts through overrunning clutches. 3. The engine according to claim 1, characterized in that for operation on compressed air or steam it has two symmetrical supply windows and two equally symmetrical windows with stop dogs for discharging the working medium.

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