KR102082348B1 - Freely rotating type fluid machinery - Google Patents

Abstract

Free-rotating fluid machine according to an embodiment of the present invention, the inside is provided with a hollow, the inner surface is formed in an elliptical cylinder; A rotor provided inside the cylinder and rotating about the same center as the center of the cylinder; A blade provided between the cylinder and the rotor; A tip provided between the blades adjacent to each other so as to contact the inner surface of the cylinder while the rotor rotates; A departure preventing member connecting the blade and the tip to each other; And a driving roller provided between the blade and the rotor to maintain contact with the blade and the rotor while the rotor rotates and transmit the rotational force of the rotor to the blade.

Description

Free rotation fluid machine {FREELY ROTATING TYPE FLUID MACHINERY}

The present invention relates to a fluid machine, and more specifically, by sealing the space formed by the cylinder and the tip when the rotor is rotated, it is possible to prevent the leakage of the inflowing working fluid, and transmit the rotational force of the rotor directly to the tip and the blade. And it relates to a free-rotating fluid machine that transmits power while supporting the driving roller so that the tip does not push to one side when expanding or compressing the working fluid.

Internal combustion engines, which are widely used in various vehicles, ships, airplanes, trains, etc., are equipped with pistons that perform linear motion inside the cylinder of the engine. At this time, the internal combustion engine descends the piston with the explosive power of fuel, and the crank rod connected to the piston is connected to the crankshaft to convert the linear descending motion of the piston into the rotational motion of the crankshaft to obtain rotational power.

The conventional internal combustion engine as described above has a problem that severe noise and vibration are generated due to an imbalance in shock and friction received from a piston during mechanical transformation of a crankshaft and a crank rod that converts linear motion into rotational motion. Moreover, these noises and vibrations weaken the mechanical durability of the internal combustion engine and greatly reduce the efficiency of the internal combustion engine. In particular, there is a problem in that materials such as ceramics that are weak to impact cannot be used.

On the other hand, in order to solve the problems of the conventional internal combustion engine, a plurality of explosion spaces are formed inside the rotor, air inlets and gas outlets are formed outside the rotor, and then fuel (or fluid) is supplied to the explosion space while supplying the rotor. A rotary engine with a simple structure has been developed that naturally generates combustion gas when it meets the gas outlet while rotating the explosive space by the rotational force of the air.

However, such a rotary engine did not overcome the problems of the existing internal combustion engine. Specifically, the rotary engine does not completely discharge the internal combustion gas, and does not fully absorb external air, so its driveability and efficiency are extremely low. In particular, it has insufficient suction and discharge during low-speed rotation, and excessive suction during high-speed rotation, There are serious problems such as over-emission phenomenon. In addition, in the rotary engine, since the rotor rotates on the eccentric shaft, vibration and wear occur.

On the other hand, in the case of a typical vankel-type engine of a rotary engine, since the rotor rotates eccentrically around the rotational shaft, vibration is inevitably generated, and accordingly, there is a problem in durability and airtightness.

In addition, in order to solve the above problems, the present applicant has proposed the 'free-rotating fluid machine' of Korean Patent Registration No. 10-1568640 (Registration Date: 2015.11.02.). However, the technology disclosed in Korean Patent Publication No. 10-1568640 has a problem in that the tip is disengaged from the blade by the centrifugal force of the rotor because the blade cannot reliably hold the tip even if the rotation of the rotor is slightly faster.

In addition, when expanding or compressing the working fluid, the tip and the blade are pushed to a part that receives a lot of force, and thus the elasticity is imbalanced in the leaf spring supporting the auxiliary tip formed in the tip portion in contact with the cylinder, so that the auxiliary tip is not in close contact with the cylinder. There is a problem in that the continuous rotational force cannot be obtained due to leakage of the working fluid during expansion, and the efficiency decreases due to leakage of the working fluid during compression.

In addition, as the tip is detached between the blades, the state of the tip and the blade is deformed to cause leakage in the combustion chamber inside the cylinder, and the blade with the deformed shape moves to cause collision with the inside of the cylinder combustion chamber or wear. have.

The present invention has been proposed to solve the above problems, even if the centrifugal force is generated by the rotation of the rotor inside the cylinder, the tip is not disengaged from the blade, and the tip is one due to the imbalance of force when expanding the working fluid. Due to the imbalance of elasticity in the plate spring that is biased toward the side, the auxiliary tip is pushed to one side to prevent the working fluid from leaking and becoming non-rotating. It is to provide a free-rotating fluid machine capable of preventing the leakage of the working fluid by maintaining this balance and keeping the auxiliary tip in close contact with the cylinder.

In addition, the present invention is a free rotation type that can prevent the tip from being detached from the blade without preventing the means from being damaged or increasing the number of parts when the means for preventing the tip from being detached from the blade is prevented. Provide a fluid machine.

In addition, the present invention prevents the tip from being pushed to either side by installing a driving roller on each blade so that the tip and the auxiliary tip are in close contact with the cylinder when the rotor rotates, and the auxiliary tip is in close contact with the cylinder with a certain force and expands. Provided is a free-rotating fluid machine that prevents leakage of working fluid during transmission or compression and can transmit power to a rotor or blade without frictional resistance.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

Free-rotating fluid machine according to an embodiment of the present invention for achieving the above object, the inside is provided with a hollow, the inner surface is formed in an elliptical cylinder; A rotor provided inside the cylinder and rotating about the same center as the center of the cylinder; A blade provided between the cylinder and the rotor; A tip provided between the blades adjacent to each other so as to contact the inner surface of the cylinder while the rotor rotates; A departure preventing member connecting the blade and the tip to each other; And a driving roller provided between the blade and the rotor to maintain contact with the blade and the rotor while the rotor rotates and transmit the rotational force of the rotor to the blade.

A guide groove in which the driving roller is in contact with the rotor is formed on an outer surface of the blade facing the rotor, and a seating groove in which the driving roller is mounted may be formed on an outer surface of the rotor facing the guide groove.

As the rotor rotates, the guide groove may be formed in a semi-elliptical shape or a half-track shape having a predetermined length along the length direction of the blade so that the driving roller performs a rolling contact motion within the guide groove.

The seating groove may be formed to have the same curvature or the same radius as the drive roller, and the guide groove may be formed such that both ends of the longitudinal direction have the same curvature or the same radius as the drive roller.

The guide groove may be formed to be symmetric with respect to the center of the longitudinal direction of the blade.

The blade, the tip, and the driving rollers are provided four radially based on the rotation center of the rotor, and as the rotor rotates, two driving rollers facing each other based on the rotation center among the driving rollers are the The other two driving rollers that move along the guide groove and face each other based on the rotation center may be formed to retract along the guide groove.

The tip may include: a tip body contacting both ends of the blades adjacent to each other in the longitudinal direction; An auxiliary tip groove formed on an outer surface of the tip body facing the inner surface of the cylinder;

An auxiliary tip inserted into the auxiliary tip groove to maintain contact with the inner surface of the cylinder; A plate spring provided on a bottom surface of the auxiliary tip groove to support a lower surface of the auxiliary tip groove; And an auxiliary tip contact bolt provided on the tip body so that an upper end penetrates the tip body and is exposed on a bottom surface of the auxiliary tip groove.

The upper end of the auxiliary tip contact bolt may be formed to pass through the bottom surface of the auxiliary tip groove and press the plate spring toward the auxiliary tip.

The tip has at least one first opening into which the release preventing member is inserted, and the blade has at least one second opening into which the detachment preventing member is inserted, and the first opening is formed from the The first insertion hole into which the insertion portion is inserted and the first guide groove formed in a flat plane of a fan-shaped shape around the first insertion hole so that the connection portion of the departure preventing member is seated, the fan-shaped shape of the first guide groove is the It can be formed at an angle in a range that allows the tip to remain in vertical contact with the inner surface of the cylinder while the rotor is rotating.

The departure preventing member may be integrally formed with the blade.

The free-rotating fluid machine according to the present invention is provided with a release preventing member that prevents the tip from being detached from the blade by centrifugal force, thereby closing the space between the tip and the cylinder and preventing leakage of working fluid flowing into the combustion space. You can.

In addition, in the free-rotating fluid machine according to the present invention, even if the tip is retracted toward the rotation center of the rotor or is advanced in the opposite direction of the rotation center according to the rotation of the rotor, the space in which the release preventing member can move while being fastened to the tip Since it is provided in, it is possible to prevent the departure preventing member or the tip from being damaged.

In addition, in the free-rotating fluid machine according to the present invention, by providing a driving roller between the rotor and the blade, the blade or tip is biased to one side when the working fluid is expanded, thereby causing elastic imbalance in the leaf spring supporting the auxiliary tip. The tip does not come into close contact with the cylinder and prevents transmission of power due to leakage of the working fluid. In any case, the tip is supported by the driving roller between the blade and the rotor so that the tip is not pushed to one side around the rotor, and the tip is an ellipse on the inner surface of the cylinder. It rotates constantly along and can rotate without friction resistance.

In addition, the free-rotating fluid machine according to the present invention supports the tip more stably because it prevents separation of the tip and the blade by supporting both the upper side and the lower side of the tip using a pair of anti-separation members integrally formed on the blade. can do.

In addition, the free-rotating fluid machine according to the present invention, it is possible to form a fluid machine compactly because the blade supports the blade so that the tip is not pushed to one side through the driving roller and the rotational force of the rotor can be directly transmitted to the blade without frictional resistance. .

1 is a plan view showing a free-rotating fluid machine according to an embodiment of the present invention.
FIG. 2 is a plan view showing a state in which the rotor and the blade of the free-rotating fluid machine shown in FIG. 1 rotate a predetermined angle.
3 is a plan view showing the rotor of the free-rotating fluid machine shown in FIG.
4 is a view showing the blade of the free-rotating fluid machine shown in FIG.
5 is a perspective view showing a departure preventing member of the free-rotating fluid machine shown in FIG. 1.
FIG. 6 is a plan view of a free-rotating fluid machine showing a state in which the departure preventing member shown in FIG. 5 is provided.
FIG. 7 is a view showing the tip of the free-rotating fluid machine shown in FIG. 1.
8 is a cross-sectional view of the tip shown in FIG. 7.
9 is a plan view showing a free-rotating fluid machine according to another embodiment of the present invention.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited or limited by the embodiments. The same reference numerals in each drawing denote the same members.

1 is a plan view showing a free-rotating fluid machine according to an embodiment of the present invention, FIG. 2 is a plan view showing a state in which the rotor and blades of the free-rotating fluid machine shown in FIG. 1 is a plan view showing a rotor of the free-rotating fluid machine shown in FIG. 1, FIG. 4 is a view showing a blade of the free-rotating fluid machine shown in FIG. 1, and FIG. 5 is a departure prevention of the free-rotating fluid machine shown in FIG. Perspective view of the member, FIG. 6 is a plan view of the free-rotating fluid machine showing a state in which the release preventing member shown in FIG. 5 is provided, FIG. 7 is a view showing a tip of the free-rotating fluid machine shown in FIG. 1, FIG. 8 9 is a cross-sectional view of the tip shown in FIG. 7 and FIG. 9 is a plan view showing a free-rotating fluid machine according to another embodiment of the present invention.

1 and 2, the free-rotating fluid machine 100 according to an embodiment of the present invention is provided in a hollow cylindrical shape, and the inner surface is formed in an elliptical cylinder 110, the cylinder 110 The rotor 120 is provided inside and rotates based on the same center as the center of the cylinder 110, the blade 150 provided between the cylinder 110 and the rotor 120, and the cylinder while the rotor 120 rotates The tip 130 and the auxiliary tip 140 provided between the blades 150 adjacent to each other so as to come into contact with the inner surface of the 110, the departure preventing member 160 connecting the blades 150 and the tip 130 with each other, and It may be provided between the blade 150 and the rotor 120 may include a driving roller 157 for transmitting the rotational force of the rotor 120 to the blade 150.

1 and 2, the cylinder 110 may be provided in a hollow cylindrical shape having a space therein. Inside the cylinder 110, rotors, tips 130, and blades 150, which will be described later, may be accommodated in rotational members.

Here, the cylinder 110 may have an outer circumferential surface in a cylindrical shape, and an inner surface may be formed in a shape close to an ellipse, unlike the outer surface. However, in some cases, the inner surface as well as the outer surface of the cylinder 110 may be formed in the same oval shape.

As described above, forming the inner surface of the cylinder 110 in an elliptical shape is to enable the volume of the working space 111 for compressing or expanding the working fluid injected between the cylinder 110 and the blade 150 to be changed. . In other words, the working fluid flows from the intake ports 112 and 113 formed through the side surface of the cylinder 110 and undergoes a process of compressing or expanding the working fluid in order to convert the fluid energy of the introduced working fluid into mechanical energy. At this time, it is preferable to form the inner surface of the cylinder 110 in an elliptical shape in order to convert the volume of the working space 111 through which the working fluid undergoes a compression or expansion process.

On the other hand, the side of the cylinder 110 is formed through the inlet (112,113) that the working fluid flows into the working space 111, and the exhaust port (114, 115) through which the working fluid that has undergone a compression or expansion process in the working space 111 is discharged. Can be.

That is, at least one intake port 112 and 113 and an exhaust port 114 and 115 may be provided in the cylinder 110 according to an embodiment of the present invention. In this case, the intake ports 112 and 113 and the exhaust ports 114 and 115 may be formed radially around the rotation center of the cylinder 110. The reason for radially forming the intake ports 112, 113 and the exhaust ports 114, 115 is to improve the output or pressure of energy generated from the working fluid flowing into the working space 111 through the intake ports 112, 113. For reference, the positions of the intake ports 112 and 113 and the exhaust ports 114 and 115 formed in the cylinder 110 may be changed according to the rotational direction of the rotor 120 or the position or size of the working space 111 of the cylinder 110.

When the working fluid (steam) introduced into the working space 111 expands through the intake ports 112 and 113, the blade 150 rotates by the expanding force, and the rotational force of the blade 150 changes the driving roller 157. Through, it is transmitted to the rotor 120, and finally, power may be transmitted to the outside through the rotating shaft 125 of the rotor 120.

On the other hand, as the rotor 120 connected to a motor (not shown) rotates and the blade 150 moves toward the inner surface of the cylinder 110, the working fluid in the working space 111 decreases while the volume of the working space 111 decreases. Is compressed.

The working space 111 is an enclosed space formed by the inner surface of the cylinder 110, the tip 130 and the outer surface 154 of the blade 150, and the rotor 120, the tip 130, and the blade 150 ) And the size or volume of the working space 111 may be changed by the working fluid flowing into the cylinder 110.

Referring to FIG. 3, the rotor 120 is provided in an inner hollow portion (not shown) of the cylinder 110 and can rotate based on the same center as the center of the cylinder 110. The rotor 120 may be formed in a cylindrical shape having a substantially circular cross section. For reference, when the cross section of the rotor 120 is formed in a circular shape, the distance between the blade 150 and the rotor 120 can be reduced and the overall size of the fluid machine 100 can be reduced.

In addition, although not shown in the drawing, the rotating shaft 125 of the rotor 120 may be rotatably connected to a cover (not shown) coupled to one side of the cylinder 110.

On the other hand, between the rotor 120 and the cylinder 110, four blades 150 are arranged such that one end is adjacent to each other. Between the adjacent blade 150 and one end in the longitudinal direction of the blade 150, while maintaining contact with the inner surface of the cylinder 110 as the rotor 120 rotates, while maintaining a closed state of the working space 111 A tip 130 may be provided to enable volume change. The tip 130 of the free-rotating fluid machine 100 according to the present invention is not connected to the rotor 120 but can be supported by neighboring blades 150.

Meanwhile, a seating groove 124 on which the driving roller 157 is mounted may be formed on the outer surface of the rotor 120. Here, the seating grooves 124 are preferably formed at 90-degree intervals based on a line passing through the rotation center 121 of the rotor 120.

Referring to FIGS. 1 and 2, between the blade 150 and the rotor 120, the rotor 120 maintains contact with the blade 150 and the rotor 120 while the rotor 120 rotates, or the rotational force of the rotor 120 Drive roller 157 to transfer the blade 150 may be provided.

The driving roller 157 may be formed of a cylindrical member having a circular cross section. A part of the driving roller 157 may be formed to contact the rotor 120 and the other part to contact the blade 150.

The driving roller 157 may transmit the rotational force of the rotor 120 to the blade 150 so that the blade 150 rotates together with the rotor 120 as the rotor 120 rotates.

As described above, the driving roller 157 may be mounted in the seating groove 124 of the rotor 120. Here, the seating groove 124 is preferably formed to have the same curvature or the same radius as the drive roller 157. That is, the seating groove 124 is formed in the same curve as the outer surface of the driving roller 157 so that the driving roller 157 may be mounted to the seating groove 124 in a surface contact with the seating groove 124. At this time, as the rotor 120 rotates, the guide member 157 may rotate while mounted in the seating groove 124.

Meanwhile, a guide groove 156 contacting the driving roller 157 may be formed on the outer surface 155 of the blade 150 facing the rotor 120. The guide groove 156 may be formed at an intaglio on one surface 155 of the blade 150 facing the seating groove 124.

4, the guide groove 156 may be formed to have a predetermined length along the length direction of the blade 150. The guide groove 156 may be formed in a semi-elliptical shape or a track shape, not a circular curved surface. As described above, the guide grooves 156 are formed in a semi-elliptical shape or a track shape having a predetermined length, and as the rotor 120 rotates, the drive rollers 157 perform rolling contact movements in the guide grooves 156, respectively. Since the blade 150 in contact with the driving roller 157 limits the range of movement, the four tips 130 and the auxiliary tips 140 that contact the inner surface of the cylinder 110 cannot be pushed to either side. .

Referring to Figure 1, each drive roller 157 is located at either end of the longitudinal direction of the guide groove 156. Looking in more detail, the driving rollers 157 contacting the blades 150 located at the upper right and lower left are both in contact with the left end of the guide groove 156, while the driving rollers 157 are located at the lower right and upper left. All of the drive rollers 157 contacting the blade 150 are in contact with the right end of the guide groove 156.

When the rotor 120 is rotated clockwise in the state of FIG. 1, as shown in FIG. 2, each driving roller 157 is located at one end different from FIG. 1 among both ends of the guide groove 156 in the longitudinal direction. . As described above, when two drive rollers 157 facing each other based on the rotation center 121 of the rotor 120 among the four drive rollers 157 are advanced along the guide groove 156, the rotation center 121 The other two driving rollers 157 facing each other are advanced along the guide groove 156.

The inner surface of the cylinder 110 is formed in an elliptical shape having long and short radiuses of different lengths, and four tips 130 and auxiliary tips 140 are in contact with the inner surface of the cylinder 110 along the inner surface of the ellipse. When rotating to the two driving rollers 157 facing each other based on the rotational center 121 of the rotor 120 is advanced along the guide groove 156, and the rest facing each other based on the rotational center 121 The two drive rollers 157 are forced to advance along the guide groove 156.

As the rotor 120 rotates, the two driving rollers 157 facing each other alternately advance or retreat to each other, so that the blade 150 and the tip 130 cannot be pushed toward the side that is shaken or receives a lot of force. The volume of the working space 111 may change while rotating.

In addition, when the rotor 120 rotates and the rotor 120 and the blade 150 rotate together in the cylinder 110, the drive roller 157 performs rolling contact along the guide groove 156 while rolling the rotor ( Since the rotational force of 120) is transmitted to the blade 150 or the position of the tip 130 is kept constant, the tip 130 cannot be pushed due to external force, so the elasticity of the plate spring 142 is kept constant to assist The tip 140 may be in close contact with the inner surface of the cylinder 110.

As described above, the seating groove 124 formed in the rotor 120 is formed to have the same curvature or the same radius as the drive roller 157, while the guide groove 156 formed in the blade 150 has a longitudinal direction. Both ends may be formed to have the same curvature or the same radius as the driving roller 157.

4, the guide groove 156 may be formed to be symmetrical with respect to the longitudinal center of the blade 150. That is, the guide groove 156 may be formed at the center portion of the blade 150.

A tip contact portion 152 having the same curved surface as the tip body 132 of the tip 130 formed in a cylindrical shape may be formed at both ends in the longitudinal direction of the blade 150. By contacting the tip body 132 and the blade 150 by the tip contact portions 152 formed at both ends of the blade 150, both of the contact states can be stably maintained.

When the blade 150 is rotated within the inner surface of the cylinder 110, the tip contact portion 152 is immersed in both ends of the blade 150 in the tip body 132 or the tip 130 or the blade due to friction ( 150) can be prevented from being damaged.

In addition, the second opening 151 may be formed on at least one surface of both sides of the height direction (up and down) of the blade 150. The second opening 151 is a portion into which the departure preventing member 160 to be described later is inserted. At this time, a part of the departure preventing member 160 is inserted into the first opening (131, see FIG. 7) formed in the tip 130, and the other part of the departure preventing member 160 is formed in the second opening of the blade 150 It can be inserted into (151).

On the other hand, the free-rotating fluid machine 100 according to an embodiment of the present invention may be provided with a departure preventing member 160 that the tip 130 is detached from the blade 150.

The departure preventing member 160 may prevent the tip 130 from being detached from the blade 150 by the centrifugal force generated as the rotor 120 rotates. In other words, when the rotor 120 rotates inside the cylinder 110, a centrifugal force is applied to the tip 130, so the tip 130 can move toward the inner surface of the cylinder 110.

At this time, when the rotational speed of the rotor 120 becomes faster and the centrifugal force applied to the tip 130 becomes greater, the tip 130 may be separated from the tip contact portion 152 supporting the tip 130. Here, the release preventing member 160 may prevent the tip 130 from being separated from or detached from the blade 150 even if the centrifugal force applied to the tip 130 increases due to the rotational speed of the rotor 120 being increased.

Here, the free rotation fluid machine according to the present invention (100,200) of the departure preventing member (160,257,258), as shown in Figures 1 and 2 may be provided separately from the blade 150, as shown in Figure 9 It may be provided integrally with the blade 250.

First, with reference to Figures 1 to 8 will be described with respect to the departure prevention member 160 according to an embodiment of the present invention, that is, the departure prevention member 160 formed separately from the blade 150.

Both ends of the departure-preventing member 160 illustrated in FIG. 5 may be rotatably inserted into the tip 130 and the blade 150. Departure prevention member 160, the blade 150 and the tip 130 is formed over the connecting portion 163 and the connecting portion 163 positioned over the bending and is inserted into each of the tip 130 and the blade 150 and It may include a second insertion portion (161,162). Here, the first and second insertion portions 161 and 162 may be inserted into the first opening 131 formed in the tip 130 and the second opening 151 formed in the blade 150, respectively.

The first and second insertion portions 161 and 162 may have different lengths or may be formed with the same length. The cross-section of the connecting portion 163 is formed to be rectangular, while the cross-sections of the first and second insertion portions 161 and 162 are preferably formed to be circular.

Referring to FIG. 7, the first opening 131 of the tip 130 is formed in a hole shape into which any one of the first and second insertion portions 161 and 162 of the departure preventing member 160 can be inserted. It includes a first guide groove (131b) in the form of a groove (groove) so that the connecting portion 163 of the departure preventing member 160 is not inserted into the first insertion hole (131a) and the first insertion hole (131a) You can. Here, the first guide groove 131b is formed to be stepped at an intaglio from the surfaces of both ends in the longitudinal direction of the tip body 132. That is, a stepped jaw (not shown) may be formed at both ends of the first guide groove 131b, and the connecting portion 163 of the departure preventing member 160 may be caught on the stepped jaw.

The surface of the first guide groove (131b) is in contact with the lower surface of the connection portion 163, the first and second inserting portion in a state where the lower surface of the connection portion 163 contacts the surface of the first guide groove (131b) ( It is preferable that the first insertion hole 131a is formed to a depth such that any one of 161 and 162 can be completely inserted.

Referring to FIG. 7, the first guide groove 131b may be formed in a fan shape. Here, the angle of the fan-shaped shape that is the shape of the first guide groove (131b), while the rotor 120 rotates, the tip 130 and the auxiliary tip 140 are kept in close contact with the elliptical inner surface of the cylinder 110 It is obtained by considering the range to be made. That is, the angle of the fan-shaped shape of the first guide groove 131b is not arbitrarily selected, but is a value obtained from the result of the design analysis as described above.

While the rotor 120 rotates, the tip 130 and the auxiliary tip 140 must always maintain a vertical angle to maintain contact with the inner surface of the cylinder 110. While the rotor 120 rotates, the release preventing member 160 rotates using any one of the first and second insertion portions 161 and 162 inserted in the first insertion hole 131a as a rotation axis. At this time, the tip 130 and the auxiliary tip 140 should maintain a state in vertical contact with the inner surface of the cylinder 110. The fan-shaped angle of the first guide groove 131b is a tip even if the rotor 120 rotates. 130, while maintaining a forward attitude, it should have an angle in a range capable of maintaining a state in vertical contact with the inner surface of the cylinder 110. If the fan-shaped angle of the first guide groove 131b does not have an accurate value, the tip 130 and the auxiliary tip 140 contact the inner surface of the cylinder 110 vertically while the rotor 120 rotates. The posture deformation, such as contacting at an angle without being made, may occur, and in this case, the working fluid may leak from the working space 111.

Therefore, the angle of the fan-shaped shape of the first guide groove 131b does not rotate beyond the stepped side of the first guide groove 131b while the connecting portion 163 of the departure preventing member 160 is rotated while the rotor 120 rotates. By preventing it, the tip 130 and the auxiliary tip 140 may maintain a vertical contact state with the inner surface of the cylinder 110.

As described above, the connection portion 163 of the departure preventing member 160 is rotated within a range in which the connection portion 163 is applied to the stepped side of the first guide groove 131b, that is, within the angle of the fan shape of the first guide groove 131b. I can do it.

Meanwhile, the first opening 131 is preferably formed at one end of the tip body 132 of the tip 130 in the longitudinal direction, and may be formed at both ends of the tip body 132 in some cases. When the first openings 131 are formed at both ends of the tip body 132, it is preferable that the first openings 131 are formed such that the first guide grooves 131b on both sides are symmetrical to each other.

Referring to FIG. 4, the second opening 151 may be formed on at least one surface of both sides of the blade 150 in the height direction (up and down direction). A second insertion hole 153 and a second insertion hole into which the other of the first and second insertion portions 161 and 162 of the departure preventing member 160 can be inserted also in the second opening 151 formed in the blade 150 A second guide groove (not shown) in which the connecting portion 163 of the departure preventing member 160 that is not inserted in the seat 153 is seated may be formed. It is preferable that the second guide groove is formed in an instep stepped shape with respect to the surface of the blade 150.

The second insertion hole 153 has the same shape as the first insertion hole 131a. However, unlike the first guide groove 131b, the second guide groove (not shown) formed in the blade 150 is not a fan shape, but a substantially rectangular shape having a width equal to the width of the connection portion 163 of the separation preventing member 160. It can be formed into a shape. However, if the second guide groove is formed in a fan shape, the first guide groove 131b is preferably formed in a substantially rectangular shape having the same width as the width of the connecting portion 163.

At this time, the first opening 131 formed in the tip 130 may be formed on at least one of both ends of the tip body 132 of the tip 130 in the vertical direction (height direction), and is formed on the blade 150 The two openings 151 may also be formed at at least one of both ends of the blade 150 in the vertical direction (height direction).

1, if the first opening 131 is formed on the left side based on the center of the tip body 132 of the tip 130, adjacent to the first opening 131 of the tip 130 The second opening 151 may be formed at one end portion of the blade 150. If, when the first opening 131 is formed on the right side based on the center of the tip body 132 of the tip 130, the blade 150 positioned adjacent to the first opening 131 of the tip 130 The second opening 151 may be formed at one end portion of the other side. That is, since the departure preventing member 160 is inserted over the tip 130 and the blade 150, the first opening 131 formed in the tip 130 and the second opening 151 formed in the blade 150 It is preferable that they are formed at positions adjacent to each other.

On the other hand, the departure preventing member 160 may be formed in the form of a '∪' in which the ends of the two insertion portions 161 and 162 are open. The separation preventing member 160 formed as described above may be provided one by one on the upper and lower sides of the tip 130 and the blade 150. At this time, the departure preventing member 160 may be formed at positions opposite to or symmetric to each other with respect to the upper and lower sides of the tip 130 and the blade 150.

For example, as illustrated in FIG. 1, the departure preventing member 160 positioned on the upper side of the free-rotating fluid machine 100 includes a blade 150 positioned on the left side of the tip 130 in a counterclockwise direction. The anti-separation member 160 inserted over the tip 130 and located at the lower side of the free-rotating fluid machine 100 has a blade 150 and a tip located at the right side of the tip 130 in a clockwise direction as opposed to the upper side. It can be inserted across 130.

The insertion portions 161 and 162 of the departure-prevention member 160 are formed in the form of a cylindrical rod, and may be provided side by side in pairs at both ends of the connection portion 163. The insertion portions 161 and 162 formed as described above include a first insertion hole 131a of the first opening 131 formed in the tip 130 and a second insertion hole 153 of the second opening 151 formed in the blade 150. Can be inserted respectively.

At this time, the diameter and shape of the first insertion hole (131a) and the second insertion hole 153 may be modified according to the diameter and shape of the insertion portion (161,162). For reference, the insertion portions 161 and 162 are not necessarily formed in a cylindrical shape, and may be formed in various shapes such as a square pillar. However, it is preferable that the first insertion holes 131a and the second insertion holes 153 into which the insertion portions 161 and 162 are inserted are formed in a circular shape.

The connecting portion 163 of the departure preventing member 160 is a portion connecting the first and second inserting portions 161 and 162 arranged side by side in a pair. The connection part 163 may be modified in various forms, such as a cylinder or a square column, depending on the shape of the insertion parts 161 and 162. However, the lower surface of the connection portion 163, that is, the first guide groove 131b of the first opening 131 formed in the tip 130 and the second guide groove of the second opening 151 formed in the blade 150 (not shown) It is preferred that the part seated on the si) is formed in a plane.

Here, the width of the first guide groove 131b formed in the tip 130, that is, the angle of the fan shape is larger than the width of the second guide groove (not shown) and the connecting portion 163 formed in the blade 150. desirable.

The tip 130 is supported by the blade 150 and when centrifugal force is generated by the rotation of the rotor 120, the tip 130 and the auxiliary tip 140 are affected, so that the elasticity of the leaf spring 142 changes and the four The auxiliary tip 140 is not in close contact with the inner surface of the cylinder 110 so that the working fluid leaks and the rotor 120 does not rotate. In the present invention, the driving roller 157 blades in all directions to solve this problem By receiving the 150, the tip 130 is not pushed in either direction, so that the tip 130 and the auxiliary tip 140 rotate constantly along the ellipse of the inner surface of the cylinder with constant force and can rotate without friction resistance than the existing one. have. In other words, the tip 130 may move while contacting the inner surface of the cylinder 110 as the rotor 120 rotates.

If the first guide groove 131b formed in the tip 130 is not formed in a fan shape, it is formed in the same rectangular shape as the second guide groove (not shown) formed in the blade 150, or the connection portion 163 If formed in the same form, When the tip 130 moves toward the inner surface of the cylinder 110 by centrifugal force, there is no space between the tip 130 and the release preventing member 160, so that the tip 130 and the blade 150 are prevented from being detached. The member 160 may be broken, or the tip 130 or the blade 150 may also be broken. In addition, the tip 130 may not maintain a state in vertical contact with the inner surface of the cylinder 110.

That is, the tip 130 is moved toward the cylinder 110 by centrifugal force by forming the width of the first guide groove 131b of the tip 130 larger than the width of the second guide groove (not shown) of the blade 150. Even if the escape prevention member 160 can be moved by the width of the first guide groove 131b, it is possible to prevent the breakage of the escape prevention member 160.

For reference, the width of the second guide groove (not shown) formed in the blade 150 is formed to be smaller than the first guide groove 131b formed in the tip 130, and is formed to have the same width as the connecting portion 163. You can. If the width of the second guide groove (not shown) formed in the blade 150 is larger than the width of the first guide groove 131b formed in the tip 130, the blades 150 are provided adjacent to each other. Since it does not hold the 130 properly, the tip 130 may be detached from or separated from the blade 150.

Meanwhile, referring to FIGS. 7 and 8, the tip 130 is a tip body 132 contacting both ends of the blade 150 adjacent to each other, and a tip body facing the inner surface of the cylinder 110. The auxiliary tip groove 135 formed on the outer surface of the 132, the auxiliary tip 140 inserted into the auxiliary tip groove 135 to maintain contact with the inner surface of the cylinder 110, and one end are inserted into the rotor 120 and the other end May include an auxiliary tip contact bolt 134 provided to penetrate the tip body 132.

The tip 130 may include a tip body 132 formed in a cylindrical shape having a circular cross-section, and an auxiliary tip contact bolt 134 inserted into and coupled to the tip body 132.

The first opening 131 may be formed on both sides of the tip body 132 in the longitudinal direction, and the first openings 131 formed on both sides are preferably formed to be opposite or symmetric to each other.

The auxiliary tip groove 135 is formed at an intaglio in the tip body 132 facing the inner surface of the cylinder 110. The auxiliary tip 140 may be inserted into the auxiliary tip groove 135. While the rotor 120 rotates, the auxiliary tip 140 must maintain a close contact with the inner surface of the cylinder 110. In order to keep the auxiliary tip 140 in close contact with the inner surface of the cylinder 110, the auxiliary tip 140 must be pushed toward the inner surface of the cylinder 110. A plate spring 142 that pushes the auxiliary tip 140 toward the inner surface of the cylinder 110 may be provided in the auxiliary tip groove 135 to elastically support the lower surface of the auxiliary tip 140.

Referring to FIG. 8, the plate spring 142 is formed to have a length substantially similar to the length of the tip body 132, and both ends of the plate spring 142 are formed with locking jaws formed at both ends of the auxiliary tip 140 (not shown). Si) and the center portion of the plate spring 142 is bent to convex downward to contact the lower surface of the auxiliary tip groove 135. In this form, the leaf spring 142 elastically supports the auxiliary tip 140.

Meanwhile, the auxiliary tip contact bolt 134 is a member that pushes the plate spring 140 toward the auxiliary tip 140 so that the auxiliary tip seal 140 is in close contact with the inner surface of the cylinder 110.

The auxiliary tip contact bolt 134 may include an upper end reaching the bottom surface of the auxiliary tip groove 135 formed in the rotor 120 and a lower end penetrating the tip body 132.

The auxiliary tip contact bolt 134 is screwed with the tip body 132 to adjust the position of the upper portion penetrating the tip body 132. To this end, a thread (not shown) may be formed in the auxiliary tip contact bolt 134 and the tip body 132.

Referring to FIGS. 7 and 8, the upper end of the auxiliary tip contact bolt 134 is provided to be exposed from the bottom surface of the auxiliary tip groove 135 to press the leaf spring 142. The longer the upper length of the auxiliary tip contact bolt 134 exposed from the bottom surface of the auxiliary tip groove 135, the greater the force by which the leaf spring 142 presses the auxiliary tip 140 to the inner surface of the cylinder 110.

As such, by adjusting the length of the upper end of the auxiliary tip contact bolt 134 penetrating the tip body 132 to press the plate spring 142 to maintain the contact state between the inner surface of the cylinder 110 and the auxiliary tip 140 You can.

Meanwhile, the auxiliary tip 140 is preferably formed of graphite or resin.

In addition, when the rotor 120 rotates inside the cylinder 110, centrifugal force is not generated by the rotation of the rotor 120. The reason is that the rotor 130 and the blade 150 are transmitted to the tip 130 and the blade 150 without gaps in all directions by the driving roller 157, so the tip 130 and the auxiliary tip 140 are centrifugal. However, it rotates in close contact with the inner surface of the cylinder 110 without any external force. At this time, the elasticity of the plate spring 142 always maintains a constant state, and it is possible to prevent the working fluid flowing into the working space 111 of the cylinder 110 from leaking.

Meanwhile, in the free-rotating fluid machine 200 according to another embodiment of the present invention illustrated in FIG. 9, the departure preventing member 258 may be integrally formed with the blade 250.

The free-rotating fluid machine 200 according to another embodiment of the present invention shown in FIG. 9 is a free-rotating fluid machine 100 and a blade 200 according to an embodiment of the present invention shown in FIGS. 1 and 2 And the parts other than the departure preventing members 257 and 258 are the same, and therefore, the same reference numerals are used.

Specifically, the departure preventing members 257 and 258 are formed at both ends of the blade 250, and one side may be formed in an open form of a ring or a ring. The detachment preventing members 257 and 258 provided in a ring or ring shape may prevent the tip 130 from being detached from the blade 250 while surrounding the tip body 132 of the tip 130 having a circular cross section.

Here, the anti-separation member 257,258 may be formed with the same curved surface as the outer surface (circumferential surface) of the anti-separation member 257,258 to facilitate support while surrounding the tip body 132.

In addition, the blades 250 may be provided one by one between the tips 130 provided adjacent to each other. At this time, the departure-preventing members 257 and 258 may be supported while surrounding at least one of the upper or lower sides of the tip body 132.

Referring to FIG. 9, the detachment prevention members 257 and 258 integrally formed at both ends of the blade 250 positioned at the upper left and lower right sides based on the rotation center 121 of the rotor 120 include the tip body 132. It wraps the upper side and is connected to the tip 130. On the other hand, the departure preventing member (not shown) integrally formed at both ends of the blade 250 positioned at the lower left and upper right sides based on the rotational center 121 of the rotor 120, the lower side of the tip body 132 Wrapping is connected to the tip 130. Since the departure preventing member surrounds the lower side of the tip body 132, it is hidden from the departure prevention members 257 and 258 of the blade 250 positioned at the upper left and lower right.

In other words, the departure-preventing members 257 and 258 are formed on both ends of the blade 250 in the longitudinal direction, but are preferably formed on either the top or bottom of the blade 250 in the height direction. By alternately arranging the blade 250 having the departure preventing members 257 and 258 formed only at the upper end along the height direction of the blade 250 and the blade 250 having the departure preventing members 257 and 258 formed only at the lower end in the height direction, the tip ( The departure preventing members 257 and 258 of the blades 250 located on both sides of the 130 are all located on the upper or lower sides of the tip body 132, so that the departure prevention members 257 and 258 on both sides collide with each other or the tip 130 and The blade 250 can be prevented from being damaged.

Here, the guide groove 256 formed in the blade 250 is the same as the guide groove 156 formed in the blade 150 shown in FIG. 4.

Meanwhile, a contaminant discharge unit 259 may be formed on one surface of the blade 250 facing the inner surface of the cylinder 110. The contaminant discharge unit 259 may be formed along the vertical direction (height direction) of the blade 250. The contaminant discharge unit 259 may be formed in the same manner as the blade 150 shown in FIG. 4.

By the above configuration, the free-rotating fluid machine 100,200 according to the present invention is provided with a release preventing member that prevents the tip from being detached from the blade by centrifugal force, thereby closing the space between the tip and the cylinder and into the combustion space. Leakage of the inflowing working fluid can be prevented.

In addition, the free-rotating fluid machine 100,200 according to the present invention, even if the tip is retracted toward the rotation center of the rotor or is advanced in the opposite direction of the rotation center according to the rotation of the rotor, the departure-preventing member can move while being fastened to the tip Since the space is provided on the tip, it is possible to prevent the departure preventing member or the tip from being damaged.

In addition, the free-rotating fluid machine 100,200 according to the present invention uses a pair of anti-separation members integrally formed on the blade to support both the upper and lower sides of the tip, thereby preventing separation of the tip and the blade, thereby further tipping. It can be stably supported.

In addition, the free-rotating fluid machine 100,200 according to the present invention receives the inner side of the blade as a driving roller to prevent the tip from being pushed to one side when the working fluid is inflated through a driving roller provided between the rotor and the blade. By transmitting the rotational force directly to the blade, the size of the fluid machine can be reduced.

As described above, in one embodiment of the present invention, it has been described by specific matters such as specific components and the like, and limited embodiments and drawings, which are provided only to help the overall understanding of the present invention, and the present invention It is not limited, and those skilled in the art to which the present invention pertains can make various modifications and variations from these descriptions. Therefore, the spirit of the present invention should not be limited to the described embodiments, and should not be determined, and all claims that are equivalent to or equivalent to the claims, as well as the claims described below, will be included in the scope of the spirit of the present invention.

100,200: free rotation fluid machine
110: cylinder 111: working space
112, 113: intake port 114, 115: exhaust port
120: rotor 121: rotation center
124: seating groove 130: tip
131: first opening 131a: first insertion hole
131b: first guide groove 132: tip body
134: auxiliary tip contact bolt 135: auxiliary tip groove
140: auxiliary tip 142: leaf spring
150, 250: blade 151: second opening
152: tip contact portion 153: second insertion hole
156: guide groove 157: driving roller
160,257,258: departure prevention member 161: first insertion portion
162: second inserting portion 163: connecting portion
259: pollutant discharge unit

Claims (10)

The inside is provided with a hollow, the inner surface is formed in an elliptical cylinder;
A rotor provided inside the cylinder and rotating about the same center as the center of the cylinder;
A blade provided between the cylinder and the rotor;
A tip provided between the blades adjacent to each other so as to contact the inner surface of the cylinder while the rotor rotates;
A departure preventing member connecting the blade and the tip to each other; And
Includes a drive roller provided between the blade and the rotor to maintain contact with the blade and the rotor while the rotor rotates and transmit the rotational force of the rotor to the blade.
The tip, the tip body in contact with both ends of the longitudinal direction of the blade adjacent to each other, the auxiliary tip groove formed on the outer surface of the tip body facing the inner surface of the cylinder and the auxiliary tip groove to maintain contact with the inner surface of the cylinder Includes an auxiliary tip to be inserted,
The tip is formed with at least one first opening into which the detachment preventing member is inserted, and the blade is formed with at least one second opening into which the detachment preventing member is inserted,
The detachment preventing member is located across the blade and the tip and has a rectangular cross section and a first insertion section and a second insertion section that is bent from the connection section and is inserted into the tip and the blade, respectively, and has a circular cross section. Includes wealth,
The first opening includes a first insertion hole into which the first insertion portion is inserted, and a first guide groove formed in a flat plane in a fan-shaped shape around the first insertion hole to seat the connection portion,
The second opening has a second guide groove formed in an intaglio shape with respect to the surface of the blade so that the second insertion hole is inserted into the second insertion portion and the connection portion is seated, but has a width equal to the width of the connection portion. Includes,
The angle of the fan-shaped shape of the first guide groove is such that the connection part deviates from the stepped side of the first guide groove so that the tip and the auxiliary tip maintain a vertical contact with the inner surface of the cylinder while the rotor rotates. It is formed at an angle in the range that can not be rotated, but the free rotation fluid machine, characterized in that formed larger than the width of the second guide groove and the connection.
According to claim 1,
A free rotational fluid, characterized in that a guide groove is formed in contact with the driving roller on an outer surface of the blade facing the rotor, and a seating groove in which the driving roller is mounted is formed on an outer surface of the rotor facing the guide groove. machine.
According to claim 2,
Freedom, characterized in that the guide groove is formed in a semi-elliptical shape or a half-track shape having a predetermined length along the longitudinal direction of the blade so that the drive roller performs a rolling contact motion within the guide groove as the rotor rotates. Rotary fluid machine.
The method of claim 3,
The seating groove is formed to have the same curvature or the same radius as the drive roller,
The guide groove is a free rotating fluid machine, characterized in that both ends in the longitudinal direction are formed to have the same curvature or the same radius as the drive roller.
The method of claim 3,
The guide groove is a free rotation fluid machine, characterized in that formed to be symmetrical with respect to the longitudinal center of the blade.
The method according to any one of claims 2 to 5,
The blade, the tip and the driving roller are provided radially four by the center of rotation of the rotor,
As the rotor rotates, two of the driving rollers facing each other based on the rotation center advance along the guide groove, and the other two driving rollers facing each other based on the rotation center rotate the guide groove. Free rotating fluid machine, characterized in that formed to retract along.
The method of claim 6,
The tip,
A plate spring provided on a bottom surface of the auxiliary tip groove to support a lower surface of the auxiliary tip groove; And
And an auxiliary tip contact bolt provided on the tip body so that an upper end penetrates through the tip body and is exposed on a bottom surface of the auxiliary tip groove.
The method of claim 7,
A free rotating fluid machine, characterized in that the upper end of the auxiliary tip contact bolt is formed to press the plate spring toward the auxiliary tip through the bottom surface of the auxiliary tip groove.
delete According to claim 1,
The departure-preventing member is a free rotating fluid machine, characterized in that formed integrally with the blade.

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