RU2158371C1 - Positive displacement spherical rotary machine - Google Patents

Abstract

FIELD: mechanical engineering; engines, pumps, compressors. SUBSTANCE: housing of machine consists of two semi-housings 1 and 2. Three rotors 4, 5 and 6, dividing spherical space of housing into four working chambers 9, 10, 11, 12, are placed inside housing spherical space. Central rotor 4 is connected at each side with corresponding sector rotor 5 or 6. Semi-housings 1, 2 are interconnected by clamp 3 for angular displacement relative to each other and relative to zero meridian. They are connected in equatorial plane equidistant from machine poles in each meridional section and formed by intersection of axes of rotation of sector rotors 5, 6 with chamber-forming spherical surface of housing. Semi-housing 1 has ring groove to receiver ring projection of other semi- housing 2, thus forming and alignment device. Provision is made for changing phase setting angle and precession angle. EFFECT: optimized working cycle of machine. 3 cl, 4 dwg

Description

 The invention relates to the field of engineering, namely to machines of volumetric action, and can be used as an engine, pump or compressor.

 Known volumetric spherical rotor machine containing a housing with four inlet-outlet channels, consisting of two half-bodies connected to each other, and placed in the spherical cavity of the housing three rotors, forming four working chambers, the Central rotor is connected on each side by a diametric hinge with a corresponding sector rotor moreover, the half-shells are connected rigidly by means of a flange (see ed. certificate of the USSR N 600323, F 04 С 2/00, F 01 С 1/00, 1978).

 A disadvantage of the known device is the inability to change the phase-setting angle and the angle of the precession of the machine. The objective of the invention is to increase the efficiency of the machine by optimizing its duty cycle in a wide range of rotor speeds, as well as increasing productivity and resource of the machine.

 The technical result consists in providing the ability to change the phase angle and the angle of the precession, which allows to optimize the working cycle of the machine and solve the specified problem of the invention.

 The technical result is achieved by the fact that in a volumetric spherical rotor machine containing a housing with four inlet-outlet channels, consisting of two half-bodies connected to each other, and three rotors arranged in a spherical cavity of the housing forming four working chambers, the central rotor is connected on each side with a diametric hinge with a corresponding sector rotor, the half-bodies are connected with the possibility of their angular displacement relative to each other and the zero meridian.

 In addition, the half-bodies can be interconnected in the equatorial plane, in each meridian section equidistant from the poles of the machine, formed by the intersection of the axis of rotation of the sector rotors with the chamber-forming spherical surface of the body.

 In addition, one of the half-shells may have an annular groove, which includes the annular protrusion of the other half-shell, forming a centering device.

 The essence of the proposal is illustrated by drawings.

In FIG. 1 shows a volumetric spherical rotary machine, a longitudinal section; in FIG. 2 - the same, with rotors rotated 90 degrees; in FIG. 3 - section along the axes of the inlet and outlet channels at the time of changing cycles in the working chambers; in FIG. 4 - coordinate system of the machine, an analogue of geographical coordinates,
- points A, B - machine poles - are formed by the intersection of the rotation axes of the sector rotors with the chamber-forming spherical surface of the body;
- angle α is the angle of the precession of the machine;
- arc ACB - zero meridian - a line on a spherical surface connecting the shortest path of the pole of the machine,
- equator - a line on a spherical surface equidistant from the poles in each meridian section - a circle with points PC;
- line AMPB - meridian section of a sphere; AC = CB; AP = PB, where point M has the coordinates: latitude - angle Ψ, longitude - angle α.
The volumetric spherical rotor machine has a housing consisting of two half-shells 1 and 2, interconnected by a clamp 3. Three rotors are placed in the spherical cavity of the housing. The central rotor 4 is connected on each side by a diametric hinge with a corresponding sector rotor 5 or 6. Each sector rotor 5 or 6 consists of a spherical sector made integral with the shaft 7, 8. The rotors 4,5,6 form four chambers: chambers 9 and 10 (Fig. 1), adjacent to the sector rotor 5, and chambers 11 and 12 (Fig. 2), adjacent to the sector rotor 6. Shafts 7 and 8 are installed in half bodies 1.2 in bearing units with main bearings 13 and 14.

 Hulls 1 and 2 are interconnected in the equatorial plane equidistant from the poles of the machine in each meridian section. In one of the half-shells 1 there is an annular groove, into which the annular protrusion of the other half-shell 2 enters, forming a centering device.

 The half hulls 1,2 are fastened together by a clamp 3, providing the possibility of their angular displacement relative to each other and the zero meridian.

 The machine operates as follows.

 In the channels 16.17, a working fluid is supplied under pressure. When the rotors pass 4,5,6 cycle change positions (Fig. 3), the working fluid enters the cocked working chamber 10 from the channel 17, and into the chamber 11 from the channel 17. These chambers are pressurized 16.17, and the working stroke, called duty cycle. Simultaneously, in adjacent chambers 9 and 12, open and in communication with the exhaust channels 15,18, the expiration of the working fluid occurs with a simultaneous decrease in the volume of these chambers 9, 12.

 The mutual angular displacement of the half-shells 1 and 2 allows you to change the value of the phase-setting angle, which makes it possible to optimize the duty cycle of the machine in a wide range of rotor speeds. With an angular displacement of the half-shells of 1.2, at the same time as the phase-setting angle changes, the precession angle changes, which can be used with a positive result. With a decrease in the angle of precession, the volume of the working chamber decreases slightly, but the volume of the cocked chamber increases, in which, with an increase in the speed of rotation of the rotors, the amount of spent working fluid that does not have time to leave the cocked chamber increases. A decrease in the precession angle with increasing rotor speed reduces the load in the rotor assembly due to the dynamics and kinematics of the machine.

 These features allow you to increase the efficiency of the machine in a wide range of rotor speeds, reduce loads in the rotor assembly, which increases the productivity and resource of the machine.

Claims (3)

 1. Volumetric spherical rotor machine, comprising a housing with four inlet-outlet channels, consisting of two half-bodies connected to each other, and three rotors arranged in a spherical cavity of the housing, forming four working chambers, the central rotor is connected on each side by a diametric hinge with a corresponding sector rotor, characterized in that the half-hulls are connected with the possibility of their angular displacement relative to each other and the zero meridian.  2. The machine according to claim 1, characterized in that the half-bodies are interconnected in the equatorial plane, in each meridian section equidistant from the poles of the machine, formed by the intersection of the axis of rotation of the sector rotors with a chamber-forming spherical surface of the body.  3. The machine according to claim 1 or 2, characterized in that one of the half-shells has an annular groove, which includes the annular protrusion of the other half-shell, forming a centering device.

Images