RU2139992C1 - Rotary-vane engine - Google Patents

Abstract

FIELD: mechanical engineering. SUBSTANCE: engine has stator accommodating rotor with radial slots with fitted in vanes whose ends engage with inner surface of stator. Through radial slots pass through center rotation of rotor and n vanes are fitted in slots where n=1,2,3.... Vanes are U-shaped being fitted one into the other by U-shaped slots for displacement relative to each other. Inner surface of stator is section square to axis of rotation of rotor is made ellipsoidal providing non-equal volume-chambers between stator surface, rotor surface and vanes. Lengths of vanes passing through axis of rotation of rotor are equal to each other. EFFECT: enhanced reliability, simplified design of engine. 2 dwg

Description

 The invention relates to mechanical engineering and can be used in the design of rotary-type engines.

 A known design of an asymmetric motor (patent N 2005197, F 01 C 1/344, 20.03.89). The engine contains a stator, in the bore of which the rotor with blades is eccentrically mounted, the stator is made with a profiled section on the side of the outlet, which is described by a curve formed by the end of the radius vector equal in magnitude to the radius of the original cylinder with the center shifted from the axis of the stator bore to the side the outlet at a distance equal to the sum of the eccentricity and the reciprocal of the decrease in the gap between the rotor and the initial cylindrical surface of the stator, perpendicular to the line connecting the p ora and the stator bore.

 Known rotary vane machine (patent SU N 1838633, F 01 C 1/344, 08.08.91). It contains a hollow cylindrical rotor with a drive and longitudinal radial grooves with opposite arcuate concave surfaces, eccentrically placed in the bore of the housing. In the liners are installed dividing plates with eyes covering the axis coinciding with the axis of the bore of the body. The liners are rotatably disposed in the radial grooves of the rotor and each have two arcuate and two flat contact areas located on the outer surface of each liner from the side of the rotor groove and from the plate side, respectively, interacting with them. In one of two inserts, a through channel is made on each insert plate, connecting the cavities with arcuate and flat contact sections. These cavities are communicated with a rarefaction cavity.

 The closest analogue is a pneumatic rotary engine (patent RU N 2018695, F 01 C 1/344, 05.03.91). The motor contains a rotor with radial grooves, which is eccentrically mounted in the stator with an inner cylindrical surface and end caps. Dividing blades with bevels on the end surfaces from the rotor side are placed in the grooves with the formation of working chambers in the stator. Conical protrusions are made on the end surfaces of the covers on the rotor side, the longitudinal axes of which coincide with the longitudinal axis of the stator.

 The disadvantages of the described engine is the low reliability and design complexity.

 The technical problem to be solved by the claimed invention is directed is to increase the reliability and simplify the design of the engine.

 The problem is solved as follows. The rotary vane motor contains a stator, a rotor located therein with radial grooves, in which plates are installed that contact their ends with the inner surface of the stator. Radial grooves are made through, passing through the center of rotation of the rotor, n plates are installed in the grooves, where n = 1, 2, 3 ..., the plates are made in a U-shape, with their U-shaped grooves they enter one another with the possibility of moving relative to each other on the other hand, the inner surface of the stator in a cross section perpendicular to the axis of rotation of the rotor is made ellipsoidal, ensuring the formation of unequal volume between the surface of the rotor and the plates of the chambers, while the lengths of the plates passing through the axis of rotation of the rotor are equal to between oh.

 The invention is illustrated by drawings.

 In FIG. 1 is a cross-sectional view of an engine; FIG. 2 shows the shape of the plates; FIG. 3 - diagram of the engine.

 The motor comprises a fixed stator 1 in the form of a cylinder, the inner surface of which is ellipsoid in a section perpendicular to the axis of rotation of the rotor. A rotor 2 is installed in the stator with a center of rotation at point O. The rotor is equipped with plates 3 mounted in radial grooves 4 with the possibility of reciprocating movement. The ends of the plates are in contact with the inner surface of the stator, have a U-shape and enter each other with their grooves. The inner surface of the stator is made so that the plates passing through the axis of rotation of the rotor are equal to each other (AB = A'B '). In the stator there is an injection device 5, an exhaust device 6, an intake device 7.

 The inner surface of the stator, the surface of the rotor and the plate form a chamber of unequal volume into which the working mixture is supplied. The pressure of the working mixture on the plate during the filling of the chamber and during expansion causes the rotor to rotate. When the rotor 2 rotates, the volume of the working mixture in the chamber enclosed between the plates, the rotor surface and the inner surface of the cylinder (chambers I, II, III, IV - in Fig. 3) changes from the minimum in zone B to the maximum in zone H.

 The engine operates as follows (Fig. 3).

 In chamber 1, the exhaust device 6 moves from an open to a closed position. Rotation of the rotor 2 (in the direction of the arrow) leads to an increase in the volume of the working mixture enclosed between the plates (position of chambers II, III) and, accordingly, the vacuum increases. In position III, the inlet device 7 briefly opens and the working mixture is sucked into the chamber. Due to the rotation of the rotor, there is a further decrease in the volume between the plates and compression of the working mixture to a maximum (chamber I), the exhaust device 6 is in this closed position. With further rotation of the rotor until it leaves zone B, the ignition of the working mixture occurs (fuel injection). The ignited mixture will exert pressure on both plates, trying to push them apart, but the area of the right plate will increase faster than the left and, consequently, the plates will move and the rotor will rotate to zone N. At this point, the inlet device 7 will open and some of the gases will exit volume (chamber III), and in chamber II, the ignited working mixture expands and the process repeats as described above. With further rotation of the rotor, the remaining mixture of exhaust gases is compressed (from chamber IV to chamber I) and expelled through the exhaust device 6, which at this moment is in the open state. After the plates pass through zone B, the device 6 closes and the cycle repeats again.

 This engine can be manufactured using well-known technologies and materials.

Claims (1)

 A rotary vane motor containing a stator, a rotor located therein with radial grooves, in which there are plates contacting their ends with the inner surface of the stator, characterized in that the radial grooves are made through, passing through the center of rotation of the rotor, n plates are installed in the grooves, where n = 1, 2, 3, ..., the plates are made in a U-shape, with their U-shaped grooves they enter one another with the possibility of movement relative to each other, the inner surface of the stator in a section perpendicular to the axis in ascheniya rotor formed ellipsopodobnoy providing formation between it and the rotor surface plates of unequal volume chambers, wherein the length of the plates, passing through the rotor axis, are equal.

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