KR101915976B1 - Rotary piston pump and driving method thereof - Google Patents

Abstract

The present invention relates to a rotary piston pump which comprises: a housing assembly in which a storage space is formed, and at least one inflow hole and at least one discharge hole are arranged in an opposite side while leaving the storage space therebetween; a rotor assembly having a rotor provided to eccentrically rotate in the storage space, dividing the storage space into a plurality of variable volume spaces when the rotor eccentrically rotates, and contracting or expanding the variable volume spaces in accordance with a rotation state; at least one inflow check valve closing or opening the inflow hole when a static pressure or negative pressure atmosphere is formed by contacting or expanding the communicating variable volume spaces; at least one discharge check valve opening or closing the discharge hole when a static pressure or negative pressure atmosphere is formed by contacting or expanding the communicating variable volume spaces; a plurality of electromagnet assemblies radially installed about the storage space along an outer circumference of the housing assembly; and a permanent magnet assembly installed in the rotor to form a gravitational force and a repulsive force in relation with magnetism generated when applying power to the electromagnet assemblies.

Description

TECHNICAL FIELD [0001] The present invention relates to a rotary piston pump and a rotary piston pump,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary piston pump, and more particularly, to a rotary piston pump that utilizes attractive forces and repulsive forces between permanent magnets and electromagnets as a rotational driving force of a rotor.

The rotary piston pump is a pump that compresses and discharges the fluid in the space while rotating the rotor eccentrically in the internal space of the housing. It is possible to connect the rotor directly to the output shaft of an engine or a motor, .

In this connection, Korean Prior Registration No. 10-1655160 (Patent Document 1) by the present applicant has been disclosed as a prior art related to a rotary piston pump.

A first inlet check valve and a second inlet check valve which are respectively installed on the lower surface of the rotor housing and open only at a negative pressure; A first discharge check valve and a second discharge check valve which are respectively installed on the upper surface of the rotor housing and open only at a constant pressure and are in communication with the ground connection pipe; And a motor including a drive shaft eccentrically coupled to the rotor, wherein a plurality of volume variation spaces are expanded or compressed by rotation of the rotor such that the first inlet check valve and the second inlet check valve are located in the borehole, And the first discharge check valve and the second discharge check valve are in a closed state or in a ground state where they are located in the storage section It discloses a technique characterized in that the open position to discharge to the ground connector.

However, in the conventional rotary piston pump including Patent Document 1, there is a problem that a space for separately installing an engine or a motor is indispensably required due to the characteristic that an output shaft of an engine or a motor and a rotor assembly are directly connected.

Further, since the conventional rotary piston pump is required to have a bracket for fixing the engine and the motor, a mechanical seal for enclosing the output shaft with the engine, a gland packing, a lidar, and the like, the cost of manufacturing the pump is increased.

In addition, when the conventional rotary piston pump is installed in the middle of a pipe for transporting fluids, there arises a problem that the installation structure for installing and mounting the engine and the motor is complicated.

Korean Patent No. 10-1655160

The object of the present invention is to provide a rotary piston pump capable of eliminating the installation of an engine or a motor by using attraction force and repulsive force between the permanent magnet and the electromagnet as rotational driving force of the rotor.

It is also an object of the present invention to provide a rotary piston pump which makes it possible to make a pump more compactly because it is not necessary to directly connect a driving force to a rotor assembly unlike an engine or a motor.

It is also an object of the present invention to provide a rotary piston pump that reduces the manufacturing cost of a pump by eliminating the necessity of using some components that are essential for engine or motor installation.

Another object of the present invention is to provide a rotary piston pump capable of manufacturing a pump with a simple structure so that it can be easily installed in the middle of a pipe for conveying a fluid.

It is still another object of the present invention to provide a method of driving a rotary piston pump that enables continuous one-way fluid movement by controlling a magnetic-based rotary piston pump having a simple structure by changing a polarity and applying power.

A rotary piston pump according to an embodiment of the present invention includes a housing assembly in which a housing space is formed and in which at least one inlet hole and at least one outlet hole are disposed opposite to each other with the housing space interposed therebetween; A rotor assembly including a rotatably disposed rotor and configured to split the accommodating space into a plurality of variable volume spaces when the rotor eccentrically rotates to shrink or expand the plurality of variable volume spaces according to a rotation state, At least one inlet check valve that closes or opens the inlet hole when a static or negative pressure atmosphere is formed due to shrinkage or expansion of the volume space, and at least one outlet check valve that, when a static or negative pressure atmosphere is formed by contraction or expansion of the communicated variable volume space, At least one discharge check valve for opening or closing the discharge hole A plurality of electromagnet assemblies provided radially around the housing space along the outer periphery of the housing assembly, and permanent magnets provided on the rotor to form attractive force and repulsive force in relation to magnetism generated when power is applied to the electromagnet assembly And a magnet assembly.

A method of driving a rotary piston pump according to an exemplary embodiment of the present invention is a method of driving a rotary piston pump for driving the rotary piston pump. The polarity of a current of a power source applied to the electromagnet assembly is reversed at regular intervals, And the rotor is controlled to rotate unidirectionally by the magnetic force generated in the electromagnet assembly and the attractive force and the repulsive force of the permanent magnet assembly.

INDUSTRIAL APPLICABILITY As described above, the rotary piston pump according to the present invention makes it possible to exclude the engine or the motor from being installed separately by using the attractive force and the repulsive force between the permanent magnet and the electromagnet as the rotational driving force of the rotor.

Further, since the rotary piston pump according to the present invention does not need to directly connect the driving force to the rotor assembly, unlike an engine or a motor, the pump can be made more compact in size.

Further, the rotary piston pump according to the present invention reduces the manufacturing cost of the pump by eliminating the necessity of using some parts which are essential for installing the engine and the motor.

In addition, the rotary piston pump according to the present invention can manufacture a pump with a simple structure, so that it can be easily installed in the middle of a pipe for transferring a fluid.

Furthermore, the method of driving a rotary piston pump according to the present invention enables continuous one-way fluid movement by controlling the magnetic-based rotary piston pump having a simple structure by changing the polarity and applying power.

1 is an assembled perspective view of a rotary piston pump according to an embodiment of the present invention.
2 is an exploded perspective view of the rotary piston pump shown in Fig.
3 is a partial side cross-sectional view of the rotary piston pump shown in Fig.
Figure 4 is a front view of the rotor housing and rotor assembly.
5 is a view for explaining the operating state of the rotary piston pump according to the present invention.

The accompanying drawings in the present invention may be exaggerated for clarity, clarity, and descriptive convenience. In addition, since the following terms are defined in consideration of the functions of the present invention, they may vary depending on the intention or custom of the user or the operator, and therefore the definition of these terms should be based on the technical contents throughout this specification will be. On the contrary, the embodiments are merely illustrative of the constituent elements set forth in the claims of the present invention and do not limit the scope of the present invention, and the scope of the rights should be interpreted on the basis of technical ideas throughout the specification of the present invention .

FIG. 1 is an assembled perspective view of a rotary piston pump according to an embodiment of the present invention, FIG. 2 is an exploded perspective view of the rotary piston pump shown in FIG. 1, and FIG. 3 is a partial side sectional view of the rotary piston pump shown in FIG. FIG. 4 is a front view of the rotor housing and the rotor assembly, and FIG. 5 is a view for explaining the operation state of the rotary piston pump according to the present invention.

1 to 5, a rotary piston pump according to an embodiment of the present invention includes a housing assembly 100, a rotor assembly 200, an inlet check valve 300, a discharge check valve 400, an electromagnet assembly 500 And a permanent magnet assembly 600.

In the housing assembly 100, a receiving space 101 is formed, at least one inlet hole 102 is provided at the fluid inlet side, and at least one outlet hole 103 is provided at the fluid outlet side.

In this case, the inflow hole 102 and the discharge hole 103 are disposed in the storage space 101 through the inflow hole 102 and then discharged through the discharge hole 103 And are disposed on opposite sides with the storage space 101 therebetween.

Specifically, the housing assembly 100 may include a rotor housing 110, a rotor housing side cover 120, and a check valve housing 130.

The rotor housing 110 has the receiving space 101 formed therein. The accommodating space 101 of the rotor housing 110 has an inner circumferential surface of an epitrochoid curve and has an approximately '8' -shaped inner circumferential surface when viewed from the fluid inlet side to the fluid outlet side, as shown in the drawing.

The rotor housing side cover 120 includes a first rotor housing side cover 121 having a first inflow hole 121a that covers a fluid inflow opening of the storage space 101 and constitutes a part of the inflow hole 102, And a second rotor housing side cover 122 covering the fluid outlet side opening of the storage space 101 and having a first discharge hole 122a constituting a part of the discharge hole.

In this case, the rotor housing side cover 120 may further include an axial through hole 123 at the center of the first rotor housing side cover 121 and the second rotor housing side cover 122, Furthermore, it is preferable that each of the bearing seating grooves 124 opened to the outside (the check valve housing 130 side direction) is further formed in the periphery of the shaft through-hole 123.

Meanwhile, the check valve housing 130 is formed with a second inflow hole 131a communicating with the first inflow hole 121a to constitute the inflow hole 102, in which the inflow check valve 300 is installed An inflow check valve housing 131 provided on the outer side of the first rotor housing side cover 121 and the discharge hole 103 communicating with the first discharge hole 122a to constitute the discharge check valve 400 And a discharge check valve housing 132 formed on the outer side of the second rotor housing side cover 122. The discharge check valve housing 132 includes a second discharge hole 132a through which the second rotor housing side cover 122 is installed.

When the housing assembly 100 is viewed from the fluid inlet side toward the fluid outlet side in the rotor housing 110, the inlet hole 102 is formed in the upper left portion and the lower right portion so that the variable volume space The space is defined as an individual space in which the storage space 101 is partitioned by the rotor 210 to be described later and is contracted or expanded according to the rotation of the rotor 210. Particularly, B, C), and the discharge hole 103 is formed in the upper right portion and the lower left portion to communicate with the variable volume spaces A, B, C).

The first inlet hole 121a and the second inlet hole 131a constituting the inlet hole 102 are communicated with each other and positioned at the upper left and lower right portions of the housing assembly 100, The first discharge hole 122a and the second discharge hole 132a constituting the discharge hole 103 are communicated with each other to be positioned at the upper right portion and the lower left portion of the housing assembly 100 to form a cross- .

The second inlet hole 131a and the second outlet hole 132a may be formed in the shape of an opening in which the inlet check valve 300 and the discharge check valve 400, And the other end supports the valve by the cross support. However, other structures capable of installing and supporting the two valves in the valve can be easily constructed by those skilled in the art within the scope of the present invention In the same way.

The rotor assembly 200 includes a rotor 210 that is eccentrically rotatable in the storage space 101. When the rotor 210 eccentrically rotates, the storage space 101 is divided into a plurality of variable volume spaces (For example, three variable volume spaces A, B and C when the rotor 210 has a triangular prism shape), and shrinks or expands the plurality of variable volume spaces according to the rotation state .

In this case, the rotor assembly 200 may be configured such that the rotor 210 is formed in a triangular prism shape, and three height direction corner portions are closely contacted with the inner circumferential surface of the receiving space 101 to rotate. At this time, as described above, the plurality of variable volume spaces can be divided into three variable volume spaces A, B, and C.

The rotor assembly 200 includes a rotating shaft 220 rotatably installed at a center of the housing assembly 100 and a rotating shaft 220 which is extrapolated to the rotating shaft 220 so as to be eccentrically rotatable integrally with the rotating shaft 220, And an eccentric member 230 that is inserted in the rotor 210 and eccentrically rotates the rotor 210.

For example, the rotation shaft 220 is rotatably inserted and assembled into the shaft through hole 123 formed at the center of the first rotor housing side cover 121 and the second rotor housing side cover 122 .

At this time, the rotor assembly 200 is extrapolated around the eccentric member 230 so as to reduce the friction between the eccentric member 230 and the rotor 210, And a rotor bearing 240 that is inserted into the rotor 210.

The rotor assembly 200 includes a rotary shaft bearing 220 installed on the housing assembly 100 and extruded around the rotary shaft 220 to reduce friction between the rotary shaft 220 and the housing assembly 100, (250).

For example, the rotary shaft bearing 250 may be disposed on the outer side of the first rotor housing side cover 121 and the peripheral portion of the shaft through hole 123 of the second rotor housing side cover 122 (the check valve housing 130) side-facing bearing seating grooves 124. The bearing seating grooves 124,

The inflow check valve 300 is operated in a positive or negative pressure atmosphere by contraction or expansion of the communicated variable volume space (one of the three variable volume spaces A, B, and C when the rotor 210 is a triangular prism) And closes or opens the inflow hole 102 when it is formed. Specifically, the inflow check valve 300 is closed when the communicated variable volume space is contracted to form a static pressure atmosphere, thereby blocking inflow of the fluid into the storage space 101, and the communicated variable volume space is expanded, And may be configured to be opened when the atmosphere is formed to allow fluid to flow into the accommodating space 101.

For example, the inflow check valve 300 may be installed in the second inflow hole 131a formed in the upper left portion and the lower right portion of the housing assembly 100.

The discharge check valve 400 is operated by a constant or negative pressure atmosphere by contraction or expansion of the communicated variable volume space (one of the three variable volume spaces A, B, and C when the rotor 210 is a triangular prism) And may open or close the discharge hole 103 when it is formed. Specifically, the discharge check valve 400 is opened when the communicated variable volume space is contracted and a static pressure atmosphere is formed, so that fluid is discharged from the storage space 101, and the communicated variable volume space is expanded, And may be configured to be blocked from being discharged from the storage space 101 when it is formed.

For example, the discharge check valve 400 may be installed in the second discharge hole 132a formed in the upper right portion and the lower left portion of the housing assembly 100. [

The electromagnet assemblies 500 are installed radially around the housing space 101 along the outer periphery of the housing assembly 100.

For example, the electromagnet assembly 500 may include a plurality of winding protrusions 510 projecting outwardly along the outer circumference of the housing assembly 100, and a plurality of winding protrusions 510 wound around the winding protrusions 510, And a coil portion 520 that forms a magnetic moment.

In this case, the coil part 520 is wound around the winding protrusions 510, and alternately power is applied along the outer circumference of the housing assembly 100 so that adjacent parts have a magnetic arrangement opposite to each other Is preferably controlled. In this regard, the method of driving the rotary piston pump according to the embodiment of the present invention will be described in detail with reference to FIG.

When the housing assembly 100 is viewed from the fluid inlet side to the fluid outlet side, the electromagnet assembly 500 may be configured such that the winding protrusion 510 protrudes from the left side, the right side, and the outer side of the outer periphery of the housing assembly 100, Six on the upper left, lower left, upper right, and right lower outer sides. More specifically, the winding protrusion 510 may protrude outward along the outer circumference of the rotor housing 110 of the housing assembly 100.

Since the rotary piston pump according to the present invention does not need to constitute a separate engine or motor, the device for applying power to the electromagnet assembly 500 can be easily installed separately without restriction of the design space. Particularly, And can be easily installed in the middle of the pipe.

The permanent magnet assembly 600 is installed in the rotor 210 to form attractive force and repulsive force in relation to magnetism generated when power is applied to the electromagnet assembly 500.

In this case, the permanent magnet assembly 600 is inserted into three corners of the height direction of the rotor 210 in a triangular prism shape, and the inner circumferential surface side end of the storage space 101 has the same polarity And a permanent magnet 610 disposed therein.

In this case, the inner circumferential surface side end of the storage space 101 may be sealed in the permanent magnet 610. That is, the space between the end of the permanent magnet 610 and the inner circumferential surface of the storage space 101 is sealed and the possibility of wear of each component is reduced. A detailed description will be omitted for the sake of simplicity of explanation of the present invention with the technology previously known in Patent Document 1 or the like.

The permanent magnet assembly 600 may further include an elastic member (not shown) interposed between the inner end of the permanent magnet 610 on the rotor 210 side and the rotor 210. This is for elastically supporting the permanent magnet 610 toward the inner circumferential surface of the accommodating space 101. [ A detailed description will be omitted for the sake of simplicity of explanation of the present invention with the technology previously known in Patent Document 1 or the like.

In the method of driving a rotary piston pump according to an embodiment of the present invention, the polarity of the electric current of the power source applied to the electromagnet assembly 500 is reversely changed at a constant cycle to change the magnetism generated in the electromagnet assembly 500, And rotates the rotor (210) in one direction by the attraction force and the repulsive force of the assembly (600).

Such a rotary piston driving method will be described in detail on the basis of the specific embodiment shown in Fig. 5 illustrates a structure in which a fluid is introduced and discharged in a direction passing through the drawing. In order to simplify the description of the operation, the first inlet hole 121a is shown by a dotted line, (122a) is shown by a solid line.

5 (a) to 5 (f), the permanent magnets 610 are inserted into the three corners of the triangular columnar rotor 210 in the height direction, and the inner side of the rotor 210 And has an N polarity toward the outside of the rotor 210. As shown in Fig. (The case where such a polarity arrangement structure is reversed is also referred to as a configuration change within the scope of the present invention and the same range.)

5 (a) to 5 (c), the electromagnet assembly 500 has N poles (rightward, leftward, rightward, and leftward) of the six coil parts 520 toward the center of the rotor 210 And the right side, the left upper side, and the lower left side form an S polarity toward the center of the rotor 210, and the rotor 210, The power is applied so as to have an N-polarity toward the outside.

 5 (d) to 5 (f) thereafter, the polarity of the current of the power source applied to the coil portion 520 is reversed, so that the left, upper right, and right lower portions 3 The rotor 210 has an S polarity toward the center of the rotor 210 and is powered to form an N polarity toward the outside of the rotor 210. Three portions of the rotor 210, An N polarity is formed toward the center and a power is applied so as to have an S polarity toward the outside of the rotor 210.

The control method of reversing the polarity of the current of the power source applied to the coil part 520 sequentially rotates the rotor 210 in one direction.

(1) In step (a) of FIG. 5,

In comparison with the left portion of the coil portion 520 (referred to as the left electromagnet in the description of the step (a)), when viewed from the left side portion of the permanent magnet 610 (referred to as a left permanent magnet in the description of step (a) It is slightly up.

In this case, the left permanent seat rotates the rotor 210 in the clockwise direction due to the repulsive force with the left electromagnet and the attractive force with the upper left portion of the coil portion 520. (The same applies to the attraction force and repulsive force generated at the other two of the permanent magnets 610.)

At this time, the variable volume space A and the variable volume space B are expanded to form a negative pressure atmosphere, and the variable volume space C is contracted to form a static pressure atmosphere.

Therefore, the upper left first inlet hole 121a communicating with the variable volume space A causes the fluid to flow into the variable volume space A by opening the matched inlet check valve 300, and the fluid in the variable volume space A Side outlet hole 122a communicated with the outlet check valve 400 does not discharge the fluid stored in the variable volume space A by closing the discharge check valve 400. [

The first lower inflow hole 121a communicating with the variable volume space B flows the fluid into the variable volume space B by opening the matching inflow check valve 300. [

In addition, the lower left first discharge hole 122a communicating with the variable volume space C discharges the fluid stored in the variable volume space C by opening the matching discharge check valve 400. [

(2) In step (b) of FIG. 5,

The rotor 210 rotates in the clockwise direction in the same manner as the principle described in the step (a) of FIG.

The variable volume space A is changed from the expanded state to the contracted state to form the static pressure atmosphere, the variable volume space B maintains the expanded state to form the negative pressure atmosphere, and the variable volume space C continues to contract A static pressure atmosphere is formed.

Accordingly, the upper left first inlet hole 121a communicating with the variable volume space A does not allow the fluid to flow into the variable volume space A by closing the matching inlet check valve 300, The first upper discharge hole 122a communicated with the discharge check valve 400 discharges the fluid stored in the variable volume space A by opening the discharge check valve 400. [

The first lower inflow hole 121a communicating with the variable volume space B flows the fluid into the variable volume space B by opening the matching inflow check valve 300. [

In addition, the lower left first discharge hole 122a communicating with the variable volume space C discharges the fluid stored in the variable volume space C by opening the matching discharge check valve 400. [

(3) Step (c) of Figure 5

The rotor 210 rotates in the clockwise direction in the same manner as the principle described in the step (a) of FIG.

The variable volume space (A) keeps the constantly contracted state to form a static pressure atmosphere, the variable volume space (B) keeps the expanded state to form a negative pressure atmosphere, the variable volume space (C) .

Therefore, the inflow and outflow of the fluid are performed in the same manner as the step (b) of Fig.

(4) In step (d) of FIG. 5,

As described above, when the process goes from step (c) to step (d), by reversing the polarity of the current of the power source applied to the coil part 520, And the right side, the left upper side, and the lower left side are connected to the rotor 210 at three locations on the right side, the right side, the left side, and the lower left side of the rotor 210, Polarity toward the center of the rotor 210 and power is applied to the outer side of the rotor 210 so as to have an S polarity.

This is because the right side of the coil part 520 (referred to as the right electromagnet in the description of step (d)) and the right side of the permanent magnet 610 closest thereto (referred to as the right permanent magnet in the description of step (d) If the polarity of the right electromagnet does not change when the process goes from step (c) to step (d), the right permanent magnet is attracted to the right electromagnet (attraction force between N polarity and S polarity) The rotation is stopped and fixed by the repulsive force (the repulsive force between the same N polarity) with the upper right and lower right portions, so that the rotation of the rotor 210 will eventually be stopped.

In this case, considering the rotational inertia of the rotor 210, the polarity of the current of the power source applied to the coil part 520 is reversed by setting an appropriate time during the process of changing the state of step (c) and step (d) And the concept of the 'predetermined period' described above should be understood as a concept including the error range.

Meanwhile, in step (d), the rotor 210 continues to rotate in a clockwise direction, and the principle thereof is as described in step (a).

At this time, the variable volume space A maintains the constant contraction state to form the static pressure atmosphere, the variable volume space B maintains the expanded state and the negative pressure atmosphere is formed, and the variable volume space C becomes the contraction state The state of expansion is changed to form a negative pressure atmosphere.

Accordingly, the upper right side first discharge hole 122a communicated with the variable volume space A discharges the fluid stored in the variable volume space A by opening the discharge check valve 400 matched.

The lower right inflow hole 121a communicating with the variable volume space B allows the fluid to flow into the variable volume space B by opening the matching inflow check valve 300 and the variable volume space B And the lower left first discharge hole 122a communicated with the discharge check valve 400 is closed so that the fluid stored in the variable volume space B is not discharged.

In addition, the upper left first inlet hole 121a communicating with the variable volume space C opens the matched inlet check valve 300, thereby allowing the fluid to flow into the variable volume space C.

(5) In step (e) of Fig. 5,

The rotor 210 rotates in the clockwise direction like the principle described in the step (d) of FIG.

The variable volume space A is maintained in the continuously contracted state to form a static pressure atmosphere and the variable volume space B is changed to the expanded state to the contracted state to form the static pressure atmosphere and the variable volume space C is in the expanded state And a negative pressure atmosphere is formed.

Accordingly, the upper right side first discharge hole 122a communicated with the variable volume space A discharges the fluid stored in the variable volume space A by opening the discharge check valve 400 matched.

The lower right first inlet hole 121a communicating with the variable volume space B does not allow the fluid to flow into the variable volume space B by closing the matching inlet check valve 300, B, the lower left first discharge hole 122a discharges the fluid stored in the variable volume space B by opening the discharge check valve 400 matched.

In addition, the upper left first inlet hole 121a communicating with the variable volume space C opens the matched inlet check valve 300, thereby allowing the fluid to flow into the variable volume space C.

(6) Step (f) of FIG. 5 (showing the state where the left permanent seat is exactly matched to the left core portion)

The rotor 210 rotates in the clockwise direction in the same manner as the principle described with reference to the step (d) of FIG. 5 until immediately before the step (f)

5 (f), the variable volume space A maintains the constricted state to form the static pressure atmosphere, the variable volume space B maintains the contracted state, and the static pressure atmosphere is formed , The variable volume space C maintains the expanded state, and a negative pressure atmosphere is formed. Therefore, the inflow and outflow of the fluid are performed in the same manner as the step (b) of FIG. 5 until the state of step (f) of FIG. 5 is reached.

5 (c) and 5 (d), if the polarity of the current supplied to the coil part 520 is reversed before and after the step (f) of FIG. 5, (A), (B), and (C) in the variable volume space (C) in the step (a) So that they are in the same arrangement state.

Therefore, the unidirectional rotation of the rotor 210 and the inflow and outflow of the fluid are continuously generated by controlling the current polarity of the power source periodically in the opposite manner.

As described above, the rotary piston pump according to the present invention makes it possible to eliminate the separate installation of the engine and the motor by using the attractive force and the repulsive force between the permanent magnet and the electromagnet as the rotational driving force of the rotor, Thereby reducing the manufacturing cost of the pump, and facilitating installation of the fluid in the middle of the pipe for transferring the fluid.

In addition, the method of driving the rotary piston pump according to the present invention enables continuous one-way fluid movement by controlling the magnetic-based rotary piston pump having a simple structure by changing the polarity and applying power.

As described above, the present invention has been described with reference to the embodiments shown in the drawings. However, it should be understood that the present invention is by way of example only and that various modifications and equivalent embodiments are possible on the basis of common knowledge in the art . Therefore, the true technical protection scope of the present invention should be determined based on the specific contents of the above-mentioned invention in accordance with the claims to be described below.

The present invention relates to a rotary piston pump and a driving method thereof, and is applicable to industrial fields related to fluid transfer piping and pump technology.

100: housing assembly 101: storage space
102: inlet hole 103: outlet hole
110: rotor housing 120: rotor housing side cover
121: first rotor housing side cover 121a: first inlet hole
122: second rotor housing side cover 122a: first discharge hole
123: shaft through hole 124: bearing seating groove
130: check valve housing 131: inflow check valve housing
131a: second inlet hole 132: exhaust check valve housing
132a: second discharge hole 200: rotor assembly
210: rotor 220:
230: eccentric member 240: rotor bearing
250: Rotary shaft bearing
300: Inflow check valve
400: Discharge check valve
500: electromagnet assembly 510: winding protrusion
520: coil part
600: permanent magnet assembly 610: permanent magnet

Claims (17)

A housing assembly in which a storage space is formed, at least one inlet hole and at least one outlet hole are arranged opposite to each other with the storage space interposed therebetween;
And a rotor rotatably eccentrically rotatable in the storage space, wherein when the rotor eccentrically rotates, the storage space is divided into a plurality of variable volume spaces, and the plurality of variable volume spaces are contracted or expanded assembly;
At least one inflow check valve for closing or opening the inflow hole when a static or negative pressure atmosphere is formed by contraction or expansion of the communicated variable volume space;
At least one discharge check valve that opens or closes the discharge hole when a static or negative pressure atmosphere is formed by contraction or expansion of the communicated variable volume space;
A plurality of electromagnet assemblies radially disposed around the housing space along the outer periphery of the housing assembly; And
A permanent magnet assembly installed on the rotor to form an attraction force and a repulsive force in relation to magnetism generated when power is applied to the electromagnet assembly;
.
2. The apparatus of claim 1, wherein the housing assembly comprises:
A rotor housing forming the storage space;
A first rotor housing side cover which covers a fluid inlet side opening of the accommodating space and constitutes a part of the inflow hole and a first rotor housing side cover which covers a fluid outlet side opening of the accommodating space and constitutes a part of the discharge hole, A rotor housing side cover including a second rotor housing side cover with a hole formed therein; And
An inlet check valve housing communicating with the first inlet hole to form the inlet hole and having a second inlet hole for receiving the inlet check valve and being stacked outside the first rotor housing side cover, A check valve housing including a discharge check valve housing communicating with the hole to form the discharge hole and having a second discharge hole for discharging the discharge check valve and stacked outside the second rotor housing side cover;
And a rotary piston connected to the rotary piston.
The rotor of claim 2, wherein the rotor housing side cover comprises:
And a shaft through hole is further formed in the center of the first rotor housing side cover and the second rotor housing side cover.
The rotor according to claim 3, wherein the rotor housing side cover includes:
Wherein a bearing seating groove is formed in the periphery of the shaft through hole of the first rotor housing side cover and the second rotor housing side cover and opened outwardly.
The rotor according to claim 2,
And has an inner circumferential surface of an aprochloid curved shape.
3. The apparatus of claim 2, wherein the housing assembly comprises:
When the rotor housing is viewed from the fluid inlet side to the fluid outlet side, the inlet holes are formed in the upper left portion and lower right portion to communicate with the variable volume space, and the outlet holes are formed in the upper right portion and the lower left portion, And is communicated with a volume space of the rotary piston pump.
The rotor assembly of claim 1,
Wherein the rotor is provided in a triangular prism shape so that three height direction corner portions closely contact the inner circumferential surface of the storage space and rotate.
The rotor assembly of claim 1,
A rotating shaft rotatably installed at a central portion of the housing assembly; And
An eccentric member that is extrinsic to the rotary shaft so as to be eccentrically rotatable integrally with the rotary shaft and that is inserted into the rotor to eccentrically rotate the rotor;
And a second piston connected to the second piston.
9. The rotor assembly of claim 8,
A rotor bearing extruded around the eccentric member so as to reduce friction between the eccentric member and the rotor and inserted into the rotor together with the eccentric member;
Further comprising: a second piston connected to the second piston;
9. The rotor assembly of claim 8,
A rotating shaft bearing installed on the housing assembly and extrapolating around the rotating shaft to reduce friction between the rotating shaft and the housing assembly;
Further comprising: a second piston connected to the second piston;
The electromagnetic assembly according to claim 1,
A plurality of winding protrusions protruding outwardly from the outer periphery of the housing assembly; And
A coil part wound on the winding projection part and forming a magnetic force when power is applied;
And a second piston connected to the second piston.
12. The apparatus according to claim 11,
Wherein the plurality of windings are wound on the winding protrusions and are alternately power-supplied along the outer circumference of the housing assembly, thereby controlling the magnetic arrangements to be opposite to each other.
13. The apparatus of claim 12, wherein the electromagnet assembly comprises:
Wherein when the housing assembly is viewed from the fluid inlet side toward the fluid outlet side, the winding protrusions are formed on the left side, the right side, the upper left side, the lower left side, the upper right side and the lower right side outer side of the outer periphery of the housing assembly. Pump.
8. The permanent magnet assembly of claim 7,
Permanent magnets which are embedded in three corner portions of a height of the rotor in the shape of a triangular prism, the permanent magnets being disposed so that the ends of the inner circumferential surface of the storage space have the same polarity;
And a rotary piston connected to the rotary piston.
15. The magnetron according to claim 14,
And an inner peripheral surface side end portion of the storage space is sealed.
16. The method of claim 15, wherein the permanent magnet assembly comprises:
An elastic member interposed between the rotor inner end of the permanent magnet and the rotor;
Further comprising: a second piston connected to the second piston;
A method of driving a rotary piston pump for driving the rotary piston pump according to claim 1,
Wherein the rotor is rotated in one direction by the magnetism generated in the electromagnet assembly and the attraction force of the permanent magnet assembly and the repulsive force of the permanent magnet assembly by reversing the polarity of the electric current of the power source applied to the electromagnet assembly in a constant cycle. Driving method.

Images