JPS5941602A - Double multi-vane rotating machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a multi-vane type rotary machine, and in particular, an annular vane support ring on which a large number of vanes are installed is rotated while sliding concentrically on two cylinders, an inner and an outer cylinder. In addition to eliminating pressure problems and the resulting vane fly-off, in addition to the conventional space between the outer cylinder and ring, the space between the inner cylinder and ring can also be used as a compression or expansion chamber to reduce the outer space. This invention relates to a double multi-vane rotating machine that can be used as a double compressor, a double expander, or an expansion compressor with different capacities, with the space and the inner space being separate systems.

When using a conventional elliptical cylinder multi-vane rotating machine as a compressor or expander, if the vane extension force is insufficient during rotation, vane flying may occur, causing fluid leakage, noise, damage to the cylinder surface, etc. It causes Therefore, in order to solve this problem, a structure is known in which the vane is extended outward by applying an appropriate back pressure behind the vane using spring pressure or fluid pressure (Fig. 1). With spring pressure, the pressure is unbalanced at the rotational position, causing local wear, and with hydraulic pressure, the structure for applying back pressure is complex and there is no perfect structure, so it was impossible to completely eliminate the above defects. Things weren't being provided.

In addition, the applicant previously installed a circular outer cylinder concentrically and an inner ring (with a large number of vanes sliding radially between the three rings) in an eccentric manner, and We proposed a multi-vane fluid machine in which the tip is in contact with the inner peripheral surface of the outer cylinder and the rear end is in contact with the outer peripheral surface of the inner ring (
Although this device also eliminates local wear due to fluid back pressure, the structure to prevent deformation of the inner ring and fluid leakage is complicated, making it unsuitable for practical use. It wasn't.

Therefore, in order to eliminate the defects, the present inventors did not adopt a complicated structure that applies back pressure behind the vanes using gas pressure or liquid pressure, and the inner side With the inner cylinder as the fluid Ar
In addition to preventing 1 leak, a compression space and an expansion space are formed in the space between the outer cylinder and the vane support ring, and a compression space and an expansion space are also formed in the space between the vane support ring and the inner cylinder. , the outer space and the inner space are separated into separate systems, and a dual compressor, dual expander, or expansion compressor with different capacities is used to provide a small, high-performance rotating machine.

The present invention will be described in detail below based on the embodiments shown in FIGS. 3 to 9 of the drawings.

8 to 8 show an embodiment of the present invention, and in FIGS. 3, 4, and 7, (1) has a circular cross-section on the outer peripheral surface having a predetermined length in the axial direction. , is an outer cylinder whose inner peripheral surface has an elliptical cross section, and (2) is a shaft (2a) whose one end is supported by a front head (9) described later.
The vane support ring has an annular cross section and rotates with its outer circumferential surface inscribed in the inner circumferential surface of the outer cylinder (1), and the shaft ( Vane grooves (4), (4) in which eight vanes (5), (5), etc. can be slidably accommodated are formed in most of the disc part (2b), except for the disc part (2b) adjacent to 2a). )... are drilled radially through the disk portion (2b) to form eight through holes (2c) between the vane grooves (4), (4).
2c)... is drilled.

(3) is an inner cylinder, and its outer circumferential surface is in contact with the inner circumferential surface of the vane support ring (2), and the outer circumferential surface of the inner cylinder (3) has an elliptical shape of the outer cylinder (1). (5) has a contracted shape in the radial direction by the length thereof, and the other end (6) is the rear head, which faces the front head (9), and between them there is an outer cylinder (1) and a vane support ring (2). ) and the inner cylinder (3) are sandwiched to form a sealed space, and the outer cylinder (1), vane support ring (2) and inner cylinder (3) are arranged concentrically (center/hi 0). It is.

(7a) and ('8a) are the outer inlet and inner inlet holes drilled in the rear head (6) (see Figure 6).
6) and the front head (9) (Fig. 4). In addition, (7b) and (8b) are the outer discharge port and the inner discharge port bored in the front head (9) (Fig. 5), and the vane support ring (2).
, the inner cylinder (3), the rear head (6) h, and the ports (8b) and (4) are provided at symmetrical positions with respect to the center 0.

-16~ Next, the action will be explained. Vane support ring (2)
When rotated counterclockwise as shown, the outer cylinder (
At the two points 1), the vane support ring (2) is inscribed and rotates, and the vane support ring (2) first touches the outer cylinder (
The vane (5), which was inscribed in 1), rotates to the left. Then, the inner tip (5b) of the vane (5) is pushed out to the outer peripheral surface of the inner cylinder (3), and the outer tip (5a) of the vane (5) extends outward in the vane groove (4), causing the outer cylinder to (1), the outer space A surrounded by the vane support (2) and the two vanes (5) and (5) is expanded and depressurized, and the outer air intake port (
7a) The fluid is drawn in and then the vanes (5) are pushed inward so that the fluid is compressed and the front head (9)
It is discharged from the outer discharge port (7b) provided in the.

On the other hand, in the inner space B, the expansion stroke starts 90' later than in the outer space A, and fluid is sucked in from the inner suction port (8a) formed in the rear head (6), and then compressed to form a vane support ring. The inner discharge port is located at the position where the through hole (2c) drilled in the disk portion (2b) of (2) overlaps with the discharge port (8b) inside the front head (9) (Fig. 8). (8b) is discharged.

At this time, the outer cylinder (1), the vane support ring (2)
) and the inner cylinder (3) are arranged concentrically, and the radial distance between the inner peripheral surface of the outer cylinder (1) and the outer peripheral surface of the inner cylinder (3) is formed to increase the length of the vane (5). Therefore, the inner tip (5b) of the vane (5) is mechanically pushed out by the outer circumferential surface of the inner cylinder (3), and the outer tip (5a) of the vane (5) is tightly pressed against the inner circumferential surface of the outer cylinder (1). Since the suction and compression actions can be smoothly performed, the problem of troublesome back pressure is eliminated.

In this embodiment, the inner cylinder (3) is the outer cylinder (1
), but as the length n) of the vane (5) increases, the inner cylinder (3) becomes cocoon-shaped as shown in FIG.
It has a shape different from an ellipse. Therefore, the inner cylinder (3) also has a shape that is smaller than the outer cylinder (1) by the length of the vane in the radial direction. (2) counterclockwise and open the outer suction port (7a).
.

Fluid is sucked in from the inner suction port (8a) and discharged from the outer discharge port (7b) and the inner discharge port (8b), and both the inner and outer spaces A and B are used as compression chambers to create a dual compressor. We have explained an example in which the outside outlet (7b
), pressurize fluid from the inner discharge port (8b) and release the depressurized fluid from the outer suction port (7m) and the inner suction port (8a) to rotate the vane support ring (2) clockwise;
Both the inner and outer spaces B and A may be used as expansion chambers to form a double expander, and one of the inner and outer spaces A and H may have an inlet.

It may also be used as an expansion compressor by changing the positions of the discharge ports and using one as a compression chamber and the other as an expansion chamber.

Since the present invention is made as described above, there is no need to take any special consideration to the back pressure of the vane (5).
) has no hermetic vane flying in both the inner and outer cylinders (3) and (1), and exhibits good performance without causing local wear.

Furthermore, in addition to the conventional space between the outer cylinder (1) and the vane support ring (2), the space between the vane support ring (2) and the inner cylinder (3) is also a compression chamber or an expansion chamber. It can be used as a room, and by using the same space as a separate system for dual compressors, dual expanders, or expansion compressors with different capacities, it can be used as a small, high-performance rotating machine, which has extremely remarkable effects. It is.

[Brief explanation of the drawing]

Figure 1 is a cross-sectional view of a conventional elliptical cylinder multi-vane type rotating machine, Figure 2 is the same (conventional circular cylinder cylinder-tivane type rotating machine), and Figures 3 to 8 are the double multi-vane type rotating machine of the present invention. This is a device according to an embodiment of the machine, and the third
The figure is a longitudinal sectional view, and Figures 4, 5, and 6 are respectively 8
Cross-sectional views at ff-IV, V-V, and VI-W cross sections in the figure, FIGS. 7(a) and (b) are detailed views of the vane support ring, and FIG. 8 is a vane support 10- FIG. 9 is a diagram showing the relative position of the through hole of the holding ring and the discharge port of the front head, and is a diagram showing another embodiment. (1)・・・Outer cylinder (2)・・・・・・
Vane support IJ ring (3)・・・Inner cylinder
(4)... Vane groove (5)... Vane (6)... Rear head (7a)...
Outside suction port (7b)...Outside discharge port (8a)...
・Inner suction port (8b)...Inner discharge port (9)・°
°・°°Front-a-Tod above 11- Figure 1 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8, 72c Figure 9 Procedural Amendment (Voluntary) October 2b, 1980 1, Incident Indication of 1982 Patent Application No. 1521'14 2, Name of the invention Double multi-vane rotating machine 3, Relationship to the amended case Applicant Shin Hankyu Building, 1-12-89 Umeda, Kita-ku, Osaka 4. Date of amendment order Voluntary amendment 5. "Detailed explanation of the invention" column 6 of the specification subject to amendment, details of the amendment @ page 6, lines 9 to 17, "Outer ring (1)...
The statement "...is connected (Figure 4)" should be corrected as follows. In addition, (7b) and (8b) are the outer discharge port and the inner water outlet hole 9 (fifth
), the outer suction port (7a) and the outer discharge port (7b) communicate with the space surrounded by the outer ring (1), the vane support ring (2), the rear head (6), and the front head (9). In addition, the inner suction port (8a) and the inner discharge port (8b) are connected to the vane support ring (2), the inner cylinder (3), the rear door (6), and the front door (6).
9) and communicates with the space surrounded by (Fig. 4). Above 2-1-

Claims (1)

[Claims] A large number of vanes (5), (5), etc. can be slid radially in a cylinder (1) having an elliptical inner circumferential cross-section. A vane support ring (2) with an annular cross section is inscribed in the vane support ring (2), and the vane support ring (2) has an outer circumference formed by reducing the inner circumferential elliptical shape of the outer cylinder (1) in the radial direction by the length of the vane. The vane support ring (2) is rotated by circumscribing the inner cylinder (3) having a cross-sectional shape of a surface, and slidingly contacting the outer cylinder (1), the vane support ring (2), and the inner cylinder (3) concentrically. The outer cylinder (
1), vane support ring (2), front head (9)
and rear head (6), an expansion space and a compression space are formed surrounded by two vanes (5) and (5), and an outer intake port (7a) is provided in the expansion space, and an outer intake port (7a) is provided in the expansion space, and an outer intake port (7a) is provided in the compression space. The outer discharge ports (7b) are communicated with each other to support the frozen and vane! J nk (2), inside (ti
ll cylinder (3), front spatula 1' (9)
and rear head (6), an expansion space and a compression space are formed surrounded by two vanes (5), (5), and an inner suction port (8a) is provided in the expansion space and an inner intake port (8a) is provided in the compression space. A double multi-function device characterized in that the inner discharge ports (8b) are communicated with each other, and the outer space A and the inner space B are formed as separate systems to form a twin compressor, a twin expander, or an expansion compressor with different capacities. Vane type rotating machine.