JP2000227082A - Bent vane slide structure in displacement type piston mechanism of rotary piston structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve function of a bent vane sliding part in a displacement type piston mechanism of rotary piston structure. SOLUTION: In this displacement piston mechanism of rotary piston structure constituted so that a small rotor 2 integrated with a main shaft 1 is eccentrically arranged in a large rotor 3 consisting of a ring shaped cylinder supported with a bearing housing through a bearing, on the opposite equal points of the large rotor 3 and the small rotor 2, pairs of slide grooves 8 of fixed direction and slant with each other are carvedly provided, bent vanes of fixed bent angle are bridgedly insertedly mounted in the slide grooves 8, and suction and discharge ports are arranged on the fixed part positions of a side housing, a bearing 19 of at least one stripe is throughly provided on the confronted wall of the bent vane 9 sliding part 8a of the slide groove 8 so as to make a line square with the sliding direction and hold a shaft bar 20 in the exposed head condition without detaching, and the bent vane 9 leg between the shaft bars 20 is insertedly fitted thereto.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bent vane slide structure in a positive displacement piston mechanism having a rotary piston structure.

[0002]

SUMMARY OF THE INVENTION The present applicant discloses in Japanese Patent Application No. 314885/1997 a so-called vane type rotary mechanism having a conventional rotary piston structure, in which a vane is connected to a cam ring. The fate of the structure, which requires the partitioning of the chamber with the gradually changing volume by pressing and contacting, is as follows: wear of the vane tip, difficult configuration of proper vane pressing mechanism, and securing of seal With the difficulties of simultaneously achieving contradictory functions of ensuring smoothness of operation and airtightness, which is the rotation and sliding of the vehicle, at present, the above-mentioned problems are only solved by tactical ingenuity,
In view of the fact that the effect is limited, a positive displacement piston mechanism having a rotary piston structure which solves all the above-mentioned problems by strategically modifying the vane type rotary mechanism has been proposed.

That is, a small rotor eccentrically mounted on a main shaft of a large rotor composed of a ring-shaped cylinder holding a bearing in a bearing housing.
A pair of slide grooves having predetermined directions and inclinations are engraved at the equally dividing points of the large rotor and the small rotor, and bent vanes having a predetermined bending angle are formed in the slide grooves. Are inserted and inserted in a cross-linking manner, and suction / discharge ports are provided at predetermined portions of the side housing. This will be described below with reference to FIGS.

A small rotor 2 integrated with a main shaft 1 is eccentrically disposed in a large rotor 3 formed of a ring-shaped cylinder. The large rotor 3 is held by a bearing housing 4. Naturally, the small rotor 2 and large rotor 3 described above have bolts 6, ...
And is narrowly mounted between the assembled side housings 5 and 5 '. A pair of sliding grooves 7,..., 8,... Having a predetermined direction and inclination are formed in opposite portions of the small rotor 2 and the large rotor 3, and are bent between the sliding grooves 8, 8. The bent corner vanes 9,...

Thus, there is provided a unique rotation mechanism in which the large rotor 3 is accompanied by the bent vane 9 which always seeks the balance bridge point for the rotation of the small rotor 2. The rotating mechanism forms compartments 10,... By bending vanes 9, which change the volume according to the rotation. During this time, the bending vane 9 merely slides in the slide grooves 7 and 8.

Here, there is provided a mechanism having the same function completely different from a conventional vane type rotary mechanism in which a cantilever vane is slid while pressing the tip of the vane against a fixed cam ring to achieve volume change. Provided. Therefore, as shown in FIGS. 3 and 4, if a predetermined portion of the side housing 5, 5 ′ is set according to the application, for example, as the suction and discharge ports 11 and 12, it can be operated as a positive displacement piston mechanism having a rotary piston structure. Is possible.

For example, when the main shaft 1 of the machine and the small rotor 2 fixed to the main shaft 1 rotate counterclockwise, the bending vane 9
Serves as a medium and rotates the large rotor 3 counterclockwise.
The compartments 10,... Also rotate counterclockwise. Each compartment 10
When one turns counterclockwise, the volume of each compartment 10 increases and decreases once. When the volume of the compartment 10 increases,
The fluid is sucked into the compartment 10 through the suction port 12 and the compartment 1
If the fluid in the compartment 10 can be discharged from the compartment 12 to the outside of the compartment 10 when the volume of 0 decreases, this will act as a pump.

The amount of fluid discharged from the pump is increased by changing the amount of eccentricity of the large and small rotors 3 and 2. Also,
As shown in FIG. 5, the bent vane motor is used as the fluid discharge port 7 as the fluid inlet 13 and the fluid suction port 11 as the fluid discharge port 14, and generates a high-pressure fluid. The high-pressure fluid from the high-pressure fluid generating device 15 is combined with the device 15, and is constantly supplied into the compartment 10 through the inlet 13. Fluid entering the compartment 10 exerts pressure on the bent vane 9, and the pressure on the bent vane 9 causes the main shaft 1 to rotate clockwise, and the compartment 10 also makes a clockwise rotation. When the compartment 10 rotates and moves to the position of the outlet 14, the fluid in the compartment 10 flows out of the compartment 10 from the outlet 14.

Therefore, the motor operates as a fluid pressure rotating motor. FIG. 6 shows an example applied to a heat engine. In the bent vane motor, the fluid inlet 1
Instead of 3, an inflow hole 16 of a small hole into which the hot gas flows is installed. The inlet 16 is located at a position where the volume of the compartment 10 starts to increase when the compartment 10 of the motor rotates clockwise. Next, the outlet 14 for the fluid of the bent vane motor is used as an exhaust port 17 for exhausting hot gas.

An apparatus 18 for generating a high-temperature and high-pressure gas is combined with the hot gas bending vane motor. This operation is as follows. .. Located at the position of the hot gas inlet 16 from the n compartments 10,... Of the hot gas bending vane motor.
One compartment 10 is selected and the operation of the compartment 10 will be described.

First, the high-temperature and high-pressure gas from the high-temperature and high-pressure gas generator 18 is constantly introduced into the compartment 10 located at the position of the hot gas inlet 16 through the hot gas inlet 16. The high-temperature and high-pressure gas flowing into the compartment 10 exerts pressure on a pair of bent vanes 9 forming the compartment 10. At this time, the two bent vanes 9, 9 are subjected to pressures for pushing in opposite directions. However, since there is a difference in the area between the two bending vanes 9 and 9 that receive pressure, a difference occurs in the torque with respect to the main shaft 1. This difference in torque causes the main shaft 1 to rotate clockwise, and the compartment 10 also rotates clockwise.

As the chamber rotates, the volume of the compartment 10 increases, and high-temperature and high-pressure gas flows into the compartment 10. Since the pressure of the high-temperature and high-pressure gas continues to act on the bending vane 9, the main shaft 1 continues to rotate, and the compartment 10 also keeps rotating. Next, when the compartment 10 rotates and passes through the hot gas inlet 16, the inflow of the high-temperature and high-pressure gas into the compartment 10 stops. Subsequently, when the compartment 10 rotates, the volume of the compartment 10 increases, and the high-temperature and high-pressure gas in the compartment 10 adiabatically expands. Since the pressure of the adiabatic expansion continues to act on the bending vane 9, the main shaft 1 continues to rotate, and the compartment 10 also keeps rotating.

Next, when the compartment 10 rotates and moves to the position of the hot gas exhaust port 17, the hot gas in the compartment 10 is discharged from the hot gas exhaust port 17 to the outside of the compartment 10. The above operation is similarly established when the other compartment 10 rotates clockwise and comes to the position of the hot gas inlet, so that
The rotational force on the main shaft 1 acts continuously one after another.
Therefore, the mechanical device operates as a heat engine.

In the displacement type piston mechanism of the rotary piston structure having the novel structure described above, the operation required for the bent vane of the compartment configuration when changing the volume can be performed by sliding the pier in the slide groove. Therefore, the smoothness and airtightness of the drive can be remarkably improved. However, the present invention aims to further improve the smoothness and high airtightness of the sliding portion. -This is an improvement to the slide structure of-.

[0015]

In order to achieve the above object, the slide structure of the bent vane according to the present invention is provided in such a manner that a sliding groove is formed on a wall facing the bent vane sliding portion of the slide groove in a sliding direction. At least one bearing that vertically holds the shaft in the form of a cue without detaching the shaft is inserted vertically, and bent vane legs are inserted between the shafts.

[0016]

The bent vane leg is supported by the bearing in the sliding direction, and the frictional resistance is significantly reduced. Arrival at the balance point is expedited. Further, the sealing effect is a double seal in which the bending vane is pressed against one of the adjacent compartments due to the pressure difference between the adjacent compartments, and further pressing causes bending and comes into contact with the other, and is perfect. It is.

[0017]

1 and 2 show an embodiment of the present invention. In the figure, reference numerals 19, 19 denote bearings engraved on opposing wall surfaces 8a, 8a of the sliding portion of the bending vane 9, respectively.
Nos. 0 and 20 are fitted in a cueing manner without being detached.

This is applied to both the small rotor 2 and the large rotor 3. The bending vane 9 is inserted between the shaft rods 20, and is supported at a sliding point.

[0019]

As described above, the present invention has the following advantages. The bending vane 9 is supported by a sliding point sandwiched in the sliding direction and slides with almost zero resistance, and its smoothness is ultimate. In addition, contact seals are ensured on both sides, and both sides are perfect, as a reduction in one of the seals leads to an improvement in the other seal.

Thus, the present applicant provides a preferred use in implementing the novel rotary piston structure positive displacement piston mechanism previously proposed.

[Brief description of the drawings]

FIG. 1 is a front view of a piston mechanism showing a bent vane slide structure of the present invention.

FIG. 2 is a perspective view of a piston mechanism showing the bent vane slide structure of the present invention in a partially broken manner.

FIG. 3 is a front view of an application to a vane pump of a positive displacement piston mechanism having a rotary piston structure proposed earlier by the present applicant to which the present invention is applied.

FIG. 4 is a side view of the one shown in FIG.

FIG. 5 is a front view of an application to a vane motor of a positive displacement piston mechanism having a rotary piston structure proposed earlier by the present applicant, which is an object of the present invention.

FIG. 6 is a front view of an application to a heat engine of a positive displacement piston mechanism having a rotary piston structure proposed earlier by the present applicant to which the present invention is applied.

[Explanation of symbols]

 Reference Signs List 1 main shaft 2 small rotor 3 large rotor 4 bearing housing 5 side housing 6 bolt 7 slide groove 8 slide groove 9 bent vane 10 compartment 11 suction port 12 discharge port 13 inlet port 14 outlet port 15 device 16 inflow Hole 17 Exhaust hole 18 Device for generating gas 19 Bearing 20 Shaft rod

Claims (1)

[Claims] A small rotor integrated with a main shaft is eccentrically arranged in a large rotor composed of an annular cylinder holding a bearing in a bearing housing.
A pair of slide grooves having a predetermined direction and an inclination are engraved at equal parts of the facing portions of the large rotor and the small rotor, and bent vanes having a predetermined bending angle are fitted into the slide grooves in a bridge-like manner. In a positive displacement piston mechanism having a rotary piston structure in which a suction / discharge port is disposed at a predetermined portion of a side housing in a sliding direction, the above-mentioned sliding vane slide wall is opposed to a bent vane sliding portion. A rotary piston, characterized in that at least one bearing which vertically holds a shaft in a cueing manner without being detached is vertically penetrated, and a bent vane leg is inserted between the shafts. A bent vane slide structure in a positive displacement piston mechanism.