RU41087U1 - ROTARY ENGINE - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to rotary internal combustion engines, and can be used on vehicles, tractors, aircraft, and also as drives of electric energy generators. The motor consists of a stator, a rotor mounted on a shaft with a cavity in which an electric machine is installed, the anchor of which is fixed to the shaft, and the winding is placed in the cavity of the rotor and isolated from it.

Description

The invention relates to mechanical engineering, in particular to rotary internal combustion engines, and can be used on vehicles, tractors, aircraft, and also as drives of electric energy generators.

Known internal combustion engines, the so-called Wankel engines, containing a housing closed by front and rear covers, the inner surface of which is made of epitrochoid, inside of which a rotor is inserted, connected to the shaft using gears [1-2]. Their disadvantage is the complexity of the design, the lack of good sealing of the rotor with the intake, compression and stroke chambers, the presence of vibration from the shaft eccentric.

Known rotary engines containing a hollow body with an epitrochoid cavity and its corresponding rotor, an eccentric shaft and special stationary compact combustion chambers, hot exhaust gases pass through the rotor and one of the end caps, which leads to the burning out of lubricating oil in the bearings [3] or the engine, using radial seals made in the form of radial sealing plates installed in the projections of the housing [4]. However, such seals are difficult to perform, and they are not reliable enough. These disadvantages are partially eliminated in the rotary engine [5], in which the gas distribution disk is located on the outside of the end cap, and the exhaust of hot gases bypasses the rotor.

Rotary engines are known in which the housing has an inner chamber with a dominant cylindrical surface with protrusions according to the number of cutoffs, in which a cylindrical rotor mounted on the output shaft [6], or a rotor containing plates made with the possibility of their radial movement in the rotor [7] is placed ] for

better sealing plates, the protrusions of the housing are equipped with seals [8] or the ends of the sealing plates mounted hinged-movable seals [9]. But the proposed improvements adversely affect the operation of the engine and its resource.

The closest is a rotary engine [9], containing a stator (housing) with an internal profiled surface of variable radius, a rotor with an internal cavity mounted on the shaft, sealing plates (blades) mounted in the rotor with the possibility of radial movement, interacting with the protrusions and depressions of the inner profiled stator surface and working chambers (cylinders) with intake zones forming together with end caps (flanges) of the stator, rotor surface and profiled stator surface and forcing, working chambers (inlets) for igniting the combustible mixture with an additional compression zone, expansion and exhaust gas chambers, spark plugs placed in the stator, a gap is made between the protrusions of the stator profiled surface and the rotor, the sealing plates are equipped with articulated-movable seals in contact with the surface of the stator.

The objective of the invention is to provide an engine in which the rotor is structurally configured to accommodate an electric machine.

The problem is solved in that in the known rotary engine, comprising a housing with an internal cavity with a closed curved surface having protrusions and depressions, a rotor with an internal cavity mounted on the shaft, blades with end seals installed in the rotor with the possibility of radial movement, interacting with protrusions and troughs of the inner surface of the housing and the working cylinders, spark plugs placed in the housing, between the inner

the surface of the housing and the rotor is made a gap, according to the invention, the engine is equipped with an electric machine, the housing is made with protrusions and depressions, and the shaft consists of two parts, on one of them is fixed the motor rotor and the armature of the electric machine, the winding of which is placed in the inner cavity of the rotor and is insulated from it, on the other side of the shaft is the cam of the gas distribution mechanism associated with the intake and exhaust valves installed in the housing. The invention is illustrated by drawings:

figure 1 shows a rotary engine (cross section);

figure 2 is the same as in figure 1 (section aa);

figure 3 shows embodiments of the housing. The device consists of a figured body 1, rotor 2, blades 3, which are located in cups (slots) and are preloaded by springs 4. Rotor 2 is located on shaft 5 and is also equipped with sealing rings 6 (half rings). The ends of the blades 3 are equipped with sealing plates (rings) 7. The blades form a group: blade A and blade B. Shaft 5 is a composite one (if the engine is equipped with an electric machine). At one end of it there is a flange 8, at the other flange 9, on the same part of the shaft there is a cam 10 of the gas distribution mechanism, which drives the pusher 11, which drives the rockers 12, which drive the spring-loaded valves 13. In figure 2 only exhaust valves shown, suction valves perpendicular to the exhaust line. The valve cavity of the exhaust 14 and the suction are provided with holes that are combined and connected to the exhaust pipe and to the carburetor (filter), respectively. Anchor 15 is located at half shaft 5. Several options are possible here. There is no anchor at all (engine without an electric machine); the anchor 15 and the shaft 5 are fixedly mounted on the housing 1 and the third option: the flange 8 (therefore, the anchor 15) rotates by the shaft of another section of the engine. In the rotor 2 there is a winding of an electric machine 16 (starter) or

magnet. The electric machine is equipped with a current-transmitting device, for example, rings (not shown in the drawing) for the removal of electricity. From the rest of the rotor 2, the starter 16 is separated by a heat-insulating layer (in the simplest case, an air layer) 17. A flow cooling the electric machine can be arranged here. The engine consists of typical sections 18. To achieve a certain power, a certain number of sections is accumulated 18. In addition to this design, the engine can be two-blade (single-cylinder) - 19, four-blade (two-cylinder) - 20, six-blade (three-cylinder), etc., 2p blade, where n is the number of cylinders. 21 shows an engine with ten blades (five-cylinder). The more cylinders, the larger the diameter of the rotor, the larger the inner surface of the rotor, for an electric machine (or gearbox, gearbox) and the larger the drive arm from the working fluid. The motors in sections 18 can rotate in opposite directions for dynamic balancing (in the presence of an internal electric machine; or an appropriate mechanism). The engine is also equipped with water or air cooling, an electric spark supply system, a carburetor or injector, a fuel pump, as well as a conventional internal combustion engine. Openings may be provided in the blades 3 to eliminate dynamic compression. On the rotor 2 between the blades A and B, a channel is provided for the working fluid. In the housing 1 may be provided with guides associated with the blades for forced movement of the latter in accordance with the curved surface of the housing

The engine operates as follows.

The first blade A (figure 1), when rotated clockwise with the corresponding valve open, carries out the suction process. Further, the blade A enters the rotor 2, and the blade B begins to carry out the compression process (the suction valve is closed). When the blade B reaches the end of the figured cutout of the housing 1, the blade A will already enter the second cutout of the housing at

definitely adjustable distance. Air or air-fuel mixture is compressed. At this moment, a spark is supplied (in Otto engines), fuel is injected and a spark is injected in injection engines, fuel is injected in engines operating on the Diesel principle. The expanding working fluid presses on the blade A, the working stroke is carried out until the blade A goes into the rotor 2. At this moment, the blade B is pulled out of the cutout of the rotor 2. The cam 10 is activated, opening the corresponding exhaust valve 14, the exhaust process is carried out. A similar process occurs with another pair of blades, described for the example of a 4-blade (2-cylinder) engine. The n-cylinder engine also works.

The proposed engine is effective because it has a large number of cylinders per section, free internal volume for an electric machine or gearbox. Since the force is applied at a large distance from the shaft, there is no reciprocating movement of the crankshaft and the corresponding parts can achieve greater efficiency. The engine is compact, better balanced. If necessary, the blades can be driven by a separate drive inside the rotor.

Used sources:

1. Polytechnical Dictionary, Ch. ed. Acad. A.Yu. Ishlinsky, M :, Soviet Encyclopedia, 1960, p. 71.

2. Patent RU No. 639473, F 01 C 11/00, 1979

3. US patent, cl. 123-8.11.1968

4. French patent No. 2050093, cl. F 62 ² , 1971

5. Patent RU No. 2133355, F 02 B 53 / 00.1999

6. Patent RU No. 1565352, F 02 B 53/00, 1990

7. Patent WO No. 99/60257, F 02 B 53/00

8. Patent RU No. 2126898, F 02 B 53/02, F 01 C 1/344, 1999

9. Patent RU No. 2209323. F 02 B 53/10, 2003

Claims (6)

1. A rotary engine comprising a housing with an internal cavity with a closed curved surface, having protrusions and depressions, a rotor with an internal cavity mounted on the shaft, blades with end seals mounted in the rotor with the possibility of radial movement, interacting with the protrusions and depressions of the inner surface of the housing and forming with it and the end flanges of the housing working cylinders, spark plugs placed in the housing, a clearance is made between the inner surface of the housing with the rotor, characterized in that o the engine is equipped with an electric machine, the casing is made with protrusions and depressions, and the shaft consists of two parts, on one of them is the rotor of the engine and the armature of the electric machine, the winding of which is located in the inner cavity of the rotor and isolated from it, on the other part of the shaft there is a cam gas distribution mechanism associated with the intake and exhaust valves installed in the housing. 2. The device according to claim 1, characterized in that the rotor is equipped with o-rings located at its ends. 3. The device according to claim 1, characterized in that the gas distribution mechanism consists of pushers interacting with a shaft cam, which is connected via rockers to spring-loaded intake and exhaust valves located in cavities connected to the carburetor (filter) and the exhaust pipe. 4. The device according to claim 1, characterized in that the anchor and shaft are fixed motionless on the housing. 5. The device according to claim 1, characterized in that it consists of sections of the same type. 6. The device according to claim 1, characterized in that the anchor of the subsequent section interacts with the shaft of the previous section.