SU470190A1 - Body rotary machine - Google Patents

Description

one

The invention relates to volumetric rotary machines and can be used in hydraulic engineering.

Rotary volumetric machines are known, containing several mutually engaging rotors forming working chambers communicating with channels with a source of low or high pressure fluid.

However, the known machines are complex, their specific productivity is low, and inertial loads are high.

The proposed machine consists of six axially fixed on stationary mutually perpendicular axes, each of which has the shape of a truncated cone with two symmetrical delimited spiral cavities on its lateral surface, which it interacts with adjacent rotors.

The low pressure channels of the machine are formed by periodically opening the working chambers from the side of the large ends of the rotors, and the high pressure channels - by opening the working chambers from the side of the small ends of the rotors; in the neutral part of these

A high-pressure cavity is formed with the ends, and through axial channels are made in one or several axes of the rotors.

FIG. 1 shows the proposed device, a general view; in fig. 2 rotor; in fig. 3-6 - rotor sections; in fig. 7-10 - sections of the device by a plane passing through the axes of the rotors when they are rotated through an angle H, respectively, equal to O, 45, 90, 135

The proposed volumetric rotor machine contains six identical rotors 1-6, each of which has the shape of a truncated cone with two spiral grooves on its side surface.

The shape of the recesses is such that their minima lie on a conical surface coaxial with the rotor with an angle t, at the apex

DG-SS05L / | : 35 ° 15, (L

and the ribs lie on a conical surface coaxial with the rotor with the angle v – j at the vertex

tA2 arccos- / 54 ° 4s. t27

Claims (2)

The tops of both conical surfaces coincide with the top of the rotor. The lateral surface of the rotor in the sphere coordinate system (P, l) -, 4) with its center at the top of the rotor is described by the equations (t - parameter): i, arcsш (.2 (3-t) (r), where H (- , (d) is an arbitrary monotone function that determines the appearance of spiral grooves and ribs on the lateral surface of the rotor. In equations (3), the essential dependence of the CsH) is constant at a constant G, and for the function Crr) at a constant 1 only monotone. In other words, the essential shape of the rotor cross section with a spherical surface with its center at its top, and the curl of the rotor in a spiral around its axis when moving from one section to another, determined by adding fo () f should be only monotonic. The shape of the end surfaces of the rotor is insignificant. The plane BB is the main axial plane of the rotor. The perpendicular axes 7 of the rotors intersect at one point .. The tops of all six rotors lie at the intersection point of the semi-axes. The mutual orientation of the rotors is such that the main axial planes of the rotors 1 and 2 pass through the axes of the rotors 3 and 4, the main axial planes of the rotors 3 and 4 pass through the axes of the rotors 5 and b, and most importantly the axial planes of the rotors 5 and 6 pass through axes 7 of rotors 1 and 2. Spiral ribs on lateral rotor surfaces adjoin along their entire length to depressions on lateral surfaces of adjacent rotors, that by periodically opening the working chambers inside the device, a high-pressure cavity 8 is formed; and in one or several rotor axes high pressure channels 9 are made to divert the working medium. The low pressure channels 10 are formed by periodically opening the working chambers from the side of the large ends of the rotors. The device has one internal rotational degree of freedom. The rotation of one of the rotors around its axis at an arbitrary angle. The holder entails the rotation of the rest of the rotors around their axes at the same angle. When the rotors turn around their axes, the cavity inside the device remains closed, and its volume changes periodically. In the initial position H ss O (see Fig. 7), the cross section of rotors 1 and 2 coincides with the section A-L of the rotor (Fig. 3), and the rotors 5 and 6 - with the section B-B (Fig. 5). the angles -5 and c. complement each other to the straight, the edges of the rotors 1 and 2 lie in this section at the minima of the cavities of the rotors 5 and 6. In the position V 45 {see Fig.8) the cross section of the rotors 1 and 2 coincides with the cross section of the GG (fig.b), and the rotors 5 and 6 - with the cross section BB (Fig. 4) .. The edges of the rotors 1 and 2 lie in this section at the minima the cavities of the rotors 5 and 6, and the edges of the rotors 5 and 6 of the blade on the minima of the cavities of the rotors 1 and 2. The positions of H 90 ° (see Fig. 9) and H 135 (see Fig. 10) coincide with the positions of 4 0 ° and, if you look at the drawing, turn it 90. The repetition period of the picture. Every quarter turn of the rotors in the positions 135, 225, 315 ... there is an abrupt change in the volume of the working chamber. During one turn of the rotors the volume is pumped into the chamber or sucked from it: AV 4 ((4) The ratio dM to-total volume V of the structure equals D - 0.5. C5-). Claims of the invention A volumetric rotor machine containing several mutually engaging rotors forming working chambers communicating with a source of low or high pressure of the working medium through channels of respectively low OR high pressure, so that, in order to increase specific performance, simplifying the device, for example, in the case of using the machine as a submersible pump and reducing inertial loads, the machine contains six axially mounted on fixed mutually perpendicular rotors, each of which has the shape of a truncated cone with two symmetrical demarcated 1 and spiral recesses on its lateral surface, with which it interacts with adjacent rotors, with low pressure channels formed by periodically opening the working chambers on the side of large rotor ends, channels high pressure - by opening the working chambers from the small ends of the rotors, in the central part of the machine these ends form a high pressure cavity, in one or several roto axes The ditch is made through channels communicating with this cavity.