SU632830A1 - Multiple-action guided-vane rotary machine - Google Patents

Description

one

The invention relates to volumetric energy converters and can be used as a pump, compressor or engine, using liquid or gas as a working medium in various sectors of the national economy.

Pumps and motors of repeated action 1 are known, containing a stator with a profiled guide and a rotor, carrying plates mounted at a predetermined angle relative to each other and with the possibility of radial movement, fixed distribution discs with windows forming jointly variable volume chambers with suction and discharge zones, separated by transfer zones. When the machine is in engine mode, the suction and discharge zones will be the discharge and discharge zones, respectively.

The transfer zones are necessary here to prevent direct connection of the suction and discharge lines through the working chamber, since the angular dimensions of the suction and discharge windows are equal to the angular dimensions of the corresponding stator profile zones. The presence of transfer zones leads to an inefficient use of the volume of the machine.

A laminated machine of repeated action 2, comprising a stator and a rotor, forming working chambers of variable volume, together with fixed distribution disks and plates mounted at a given angle relative to each other and with the possibility of radial movement, is shaped in the form of a closed curve of variable radius with protrusions and valleys interacting with the plates. and forming suction zones bordering the pressure zones.

However, this machine can only work as a pump.

In order to ensure machine reversibility, i.e. its operation as a pump and engine, profiled guide mounted on the stator, the plates are installed in the rotor, and the distribution discs are made with windows located in the suction and discharge zones, having angular dimensions smaller than the angular dimensions of these zones and located one distance from another equal to the given angle between the plates. Figure 1 shows schematically a multiple-stage plate machine with a rotor located inside the stator, a longitudinal section; 2, jro is the same, the distribution scheme of the machine with windows located in the limiting disks and in the stator body; on fig.Z - the same, cross section; Fig. 4 shows a machine with a stator located inside the rotor, a cross section. The multiple-action plate-type machine comprises a housing 1 with a bottom 2 and a cover 3 in which a stationary stator 4 is placed with a profiled guide 5 in the form of a closed variable-radius curve with protrusions bi-depressions 7, inside which the rotor 8 coaxially sits on the shaft 9 In the rotor 8, the plates 10 are located at a predetermined angle relative to each other and with the possibility of radial movement, which are spring-loaded or compressed by the pressure of the working medium, and are in contact with the profiled guide 5. At both ends The stator 4 has distribution discs 11 and 12 fixed with respect to the tator by a pin 13. The stator 4 with a profiled guide 5, the rotor 8 with the plates 10 and the distribution discs form working chambers 14, the suction areas 15 which border on the pressure zones 16. Suction (discharge) cavities 17 and injection (discharge) cavities 18 are made, respectively, in the bottom 2 and the cover 3 of the housing 1 in the form of annular bores. The distribution discs are made with suction (discharge) 19 and discharge (drain) 20 ports, connected respectively to suction (discharge) 21 and discharge (drain) 22 lines. The names in parentheses are shown when the machine is in engine mode. The location of the suction ports 19 and the discharge 20 is determined by the shape of the profile of the guide 5. The execution of the distribution OKOEI with angular dimensions, 0 / K-1. 2) 60 V2m a 2 “Yasr / where is the angular size of the window in degrees; K - the number of profile protrusions that simultaneously fall into the working chamber — the number of protrusions or cavities pro fil; 2 - the number of plates; B is the plate thickness; the average radius of the stator profile provides automatic connection of the working chambers to the suction (discharge) and discharge (discharge) cavities, and is preferred. The angular dimensions of the suction and discharge windows are smaller than the angular dimensions of the suction and discharge zones. At zero overlap, the angle a between adjacent plates is equal to the angle 2 between adjacent windows. The suction and discharge cycle takes place in each chamber independently of the other chambers. A suitable machine design is one in which only one protrusion (or one depression) of a profile can be located between a pair of adjacent plates (in one working chamber). The condition Z 2 m must be met. To reduce the ripple, choose 2i repeatedly 2 m, the numbers 2, and 2iri mutually simple. In addition to the layout of distribution windows shown in Fig. 2, the latter can only be located in the Restriction disks. Design options are possible in which distribution windows are located only in the stator body, as well as options when one type of windows, such as suction (discharge) windows, is located in the disks, and the other (discharge or drain windows) is located in the rotor body. In pump mode, the machine operates as follows. When the shaft 9 rotates, the rotor 8 rotates with the plates 10. The rotating working chambers 1H pass by the projections 6 and the cavities 7 of the guides 5 of the stator 4, which change the volume of the working chambers by the value shown in FIG. 3 and double hatching. When the chamber volume increases, the working medium from the suction cavity 21 through the window 19 in the disk 11 enters the working chamber 14. The suction process begins when the working chamber passes through the axis of symmetry of the working chamber 6 and continues until the camera axis passes through the axis of symmetry of the cavity 7, in the working chamber, the injection process begins. During the entire suction time, the suction window 19, located in the disk 11, cot-ats the working chamber with the suction cavity 17. At the end of the suction process, the working chamber leaves the zone of the window 19, disconnected from the cavity 17. At about this moment, depending on the size and sign of the overlap of the processes of suction and pressure, the working chamber is in the zone of the pressure window 20 in the disk 12, connecting with the discharge cavity 18, which ensures the displacement of the working medium from the chamber during the injection process. The injection process starts when the axis of symmetry of the chamber passes through the axis of symmetry of the depression 7 of the profiled

guide 5 and continues until the camera axis passes through the axis of symmetry of the protrusion.

In engine mode, the machine works as follows.

The pressurized working medium is supplied from line 21 through window 19 in disk 11 and in the stator 4 to the working chamber. If the axis of symmetry of the protrusion 6 or the depression 7 of the profiled guide 5 of the stator 4 does not coincide with the axis of symmetry of the chamber, as a result of the force applied to the plates, a torque is generated in the chamber that is applied to the rotor 8 , limiting the working chamber, the departure of which at the considered moment of time more The distribution system automatically ensures the occurrence of torques of one sign in separate chambers that are relatively evenly spaced around the circumference of the rotor. The remaining chambers are distributed by a distribution system (windows 20 in disc 12) connected to a drain line 22.

Torques are summed on the rotor 8 of the engine and transmitted to the shaft 9. Rotation of the rotor 8 causes the working chambers 14 to move past the windows 19 and 20, which ensures successive switching of each chamber from the discharge to the discharge and vice versa when the axis of symmetry passes through the axis symmetry of the protrusion b or trough 7 of the profiled stator guide 5. The torque varies in each chamber from zero to maximum, and then to zero again, after which the chamber switches to drain. Since the torque on the shaft 9 is obtained by summing the periodically varying moments occurring in each chamber, the total moment on the cylinder 9 V is a periodically varying value.

By changing the direction of flow of the working medium, the machine is reversible.

Claims (2)

1. Zaichenko I.Z., Myshlevsky L.M. Vane pumps and hydraulic motors, M., 1970, p. 128-132, Fig.84. 2. Authors certificate of the USSR 482566, cl. F 04 C 1/16, 1971.