RU2304225C2 - Rotary wave engine - Google Patents

Abstract

FIELD: mechanical engineering; compressors and engines.

SUBSTANCE: according to invention, rotary wave engine contains rotor oscillating relative to axial line and installed on crank of shaft rotating on two support units in body. Body is provided with intake and outlet ports, compression and expansion compartments and combustion chamber with fuel nozzles. Body is made cylindrical and it houses sections with spiral spaces accommodating spiral charger enclosed between disks secured on rotor sliding along sections of body at transfer ratio equal to unity. According to one of design versions, engine can be made in form of axial-flow compression and expansion modules whose spiral spaces are made in sections coaxially and are connected by intermediate channels. According to other design version, engine can be made in form of radial compression and expansion modules with section provided, each, with several radially displaced spiral spaces connected by own combustion chambers with autonomous flows of working mixture.

EFFECT: improved power output and reduced overall dimensions of engine.

3 cl, 5 dwg

Description

The invention relates to the field of mechanical engineering, in particular to engine manufacturing, and can also be used in compressor engineering and pump engineering.

Known rodless internal combustion engines, for example, a rotary engine (Russian patent No. 2084659), which contains a housing with a cylindrical cavity and a cylindrical rotor. However, these engines are not widely used.

The closest analogue is a rotary-wave internal combustion engine (Russian patent No. 2155272) - a volumetric direct-flow machine in which a rotor installed with a minimum clearance performs angular oscillations, forming waves rolling over the housing surface in the compressor and expansion compartments. However, the known engine due to the conical shape of the housing and the rotor has a power loss in the form of its axial component. The presence of a node of equal angular velocities introduces additional power losses. Conical spaces require increased dimensions. Limitations of angular parameters reduce engine capabilities.

The aim of the invention is to remedy these disadvantages.

According to the invention, the rotary wave engine comprises a rotor oscillating relative to the center line mounted on a crank of a shaft rotating on two support nodes in a housing including an inlet and an outlet window, a compressor and expansion compartments, and a combustion chamber with fuel nozzles. The casing is cylindrical, and sections with spiral cavities are installed in it, in which eccentric-shaped superchargers are placed, enclosed between discs mounted on the rotor, sliding over sections of the casing with a gear ratio equal to one.

According to one embodiment of the invention, the engine can be made in the form of axial compressor and expansion modules, spiral-shaped cavities of which are made in sections coaxially and are connected by intermediate channels.

According to another embodiment, the engine can be made in the form of radial compressor and expansion modules, in which in each section there are several spiral-shaped cavities connected with their own combustion chambers with autonomous flows of the working mixture with radial displacement.

The invention is illustrated by drawings, where in Fig.1 shows a rotary wave engine in section; figure 2 is a section aa and bb in figure 1; figure 3 - section of the engine in a modular design; figure 4 is a section aa in figure 1 of the engine with radially offset modules; figure 5 shows the relative position of two eccentrically placed spirals.

Designations in the drawings

1. Case.

2. Section of the body.

3. Spiral cavity.

4. Spiral-shaped supercharger.

5. The rotor disk.

6. The rotor.

7. A shaft with a crank.

8. The rotation mechanism.

9. The inlet window.

10. Outlet window.

11. The combustion chamber.

12. The intermediate chamber.

L - Axial parameters.

V - Active areas.

T - points of contact of the spirals.

Sections 2 are installed in the cylindrical body 1, in which spiral-shaped cavities 3 are made. In spiral-shaped cavities 3, spiral-shaped superchargers 4 are eccentrically connected, rigidly connected on both sides with disks 5 mounted on the rotor 6. The superchargers 4 contact spiral surfaces of the cavities with their spiral surfaces 3 at points T (T1, T2, T3), forming together with disks 5 closed active working areas V (V1, V2, V3, V4). The rotor 6 rotates on the crank of the power take-off shaft 7, and the cheeks of the disks 5 slip along the cheeks of the sections 2. The rotor 6 is equipped with a rotation mechanism 8 with a gear ratio relative to the housing equal to one. The rotation mechanism 8 includes a wheel mounted on the housing 1, a wheel mounted on the rotor 6, and a block of wheels connecting them, rotating on a leash of the power take-off shaft 7. In sections 2, an inlet 9 and an outlet 10 are made. The combustion chamber 11 is built into the Central disk 5 and connects the spiral cavity 3 of the compressor and expansion compartments. The direction of the spiral surfaces in the compressor and expansion compartments is opposite.

The spiral-shaped cavities 3 of the compressor compartment, as well as the spiral-shaped cavities 3 of the expansion compartment, are connected in a modular manner by intermediate channels 12. The axial parameters L (L1, L2, L3), as well as the radial parameters R, of the modules can decrease towards the combustion chamber 11.

In order to increase reliability in sections 2, several spiral-shaped cavities 3 are made with a radial displacement relative to the axis of the shaft 7, in which spiral-shaped superchargers 4 are placed, offset from the axis of the crank. The cavities 3 of the compressor and expansion compartments are equipped with corresponding inlet 9 and outlet 10 windows and are connected by their own combustion chambers 11.

In order to increase stability and reduce radial runout, several cranks are installed on the shaft 7, and the shaft is made in the form of a crank. The rotor 6 of each module is autonomous and rotates on its own crank.

The engine operates as follows. Shaft 7 rotates. On its crank rotor 6 rotates, disks 5 connected to it and superchargers 4. Rotor 6, connected to housing 1 by means of mechanism 8, with a gear ratio equal to one, is limited in circular rotation and sways in a direction perpendicular to shaft 7 . Spiral-shaped superchargers 4 by their surfaces roll with slipping over the surfaces of spiral-shaped cavities 3. In the compressor compartment, the contact points T of the surfaces move from the peripheral parts of the spirals of the cavities 3 and the superchargers 4 to their central parts. In the expansion compartment, the movement of the touch points occurs from the center to the periphery. The distance between the points of contact varies and depends on the radial R position of the portion of the spiral, and the volume V (V1, V2, V3) enclosed between the spiral surfaces of the cavities 3 and superchargers 4 decreases in the compressor compartment and increases in the expansion compartment. Air through the inlet window 9 enters the spiral cavity 3. The blowers 4 touch points T with the surfaces of the cavities 3 cut off volumes V, decreasing when moving to the center of the spirals. The air in them is compressed and compressed enters the combustion chamber 11. Fuel enters from the nozzles in the combustion chamber and is ignited by a candle in the initial period. The combustible and expanding mixture enters the spiral cavity 3 of the expansion chamber, closes with the points T of touching the surfaces of the cavity 3 and the blower 4. The resulting closed region moves in spirals to the periphery towards the outlet window 10 until the mixture expands completely. In a modular design, the volume of compressed air is proportional to the axial parameters L1, L2, L3. Compressed air in one compressor module enters through an intermediate channel 12 into an adjacent module with smaller axial parameters L, in which it is additionally compressed. An increase in the number of modules corresponds to an increase in the stages and allows to achieve the necessary compression ratio. In the expansion compartment, the modular design and the axial parameter L allow the gas expansion process to be controlled. The radial displacement of the modules and the placement of several cavities 3 in each section 2 allows for several autonomous flows through which compression and expansion occurs, which increases reliability.

Claims (3)

1. A rotary wave engine containing a rotor oscillating with respect to the center line mounted on a crank of a shaft rotating on two support nodes in a housing including an inlet and an outlet window, a compressor and expansion compartments, and a combustion chamber with fuel nozzles, characterized in that sections with spiral cavities are installed in the cylindrical body, in which spiral-shaped superchargers are placed eccentrically, enclosed between disks mounted on the rotor and sliding along sections of the core Pusa with a gear ratio of one. 2. The engine according to claim 1, characterized in that it is made in the form of axial compressor and expansion modules, the spiral-shaped cavities of which are made in sections coaxially and are connected by intermediate channels. 3. The engine according to claim 1, characterized in that it is made in the form of radial compressor and expansion modules, in which in each section several spiral-shaped cavities are connected with their own combustion chambers with autonomous flows of the working mixture with radial displacement.

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