KR20110050051A

KR20110050051A - Vane pump double ellipse type

Info

Publication number: KR20110050051A
Application number: KR1020090106877A
Authority: KR
Inventors: 이기춘
Original assignee: 이기춘
Priority date: 2009-11-06
Filing date: 2009-11-06
Publication date: 2011-05-13

Abstract

According to the present invention, in accordance with a circular motion of a rotor rotatably installed in an operating chamber of a pump housing, a fluid inlet is drawn from the outside in the process of expanding the volume of the vane coupled to the vane groove formed in the + direction of the rotor. Through the discharge chamber, the pressurized fluid from the operating chamber can be discharged through the discharge port during the volume reduction process between the vanes and the vanes.

Twin elliptic vane pump according to an embodiment of the present invention,

A pump housing having an intake port through which fluid is sucked from the outside and a discharge port through which pressurized fluid is discharged, and an operating chamber having an inner surface formed in an elliptical shape,

A rotor rotatably installed in a forward or reverse direction in an eccentric state of the pump housing, and having a vane groove formed in a + shape direction;

A vane coupled to the vane groove so as to be slidably moved, the vane being in sliding contact with the inner end of the operating chamber by the centrifugal force when the rotor is rotated,

A vane to which the vanes are coupled is radially formed, respectively, fixed to the left and right sides of the rotor to prevent the vanes from moving in a direction perpendicular to the sliding movement direction,

It is provided on the right and left sides of the operating chamber of the pump housing, and has an end plate rotatably supporting the rotor,

When the volume of the vane and the vane in the operating chamber is enlarged by the rotation of the rotor, the fluid is sucked into the operating chamber through the suction port, and when the volume between the vane and the vane in the operating chamber is reduced in size, the fluid is discharged from the operating chamber. Eject through.

Description

Vane pump double ellipse type

The present invention is rotatably installed in the operating chamber of the pump housing formed in the inner side of the pump housing eccentrically, coupled to the vane slot radially formed in the rotor by the centrifugal force during the circular motion of the rotor The vane (vane) is a sliding movement in the radial direction relates to a pair of elliptic vane pump so that the tip is completely in close contact with the inner surface of the pump housing.

More specifically, in accordance with the circular motion of the rotor rotatably installed in the operating chamber of the pump housing, the fluid from the outside in the process of expanding the volume between the vanes and the vanes coupled to the vane groove formed in the + direction of the rotor The present invention relates to a double elliptical vane pump which is introduced into the operating chamber through an inlet and discharges pressurized fluid from the operating chamber through the discharge port during the volume reduction process between the vanes and the vanes.

The vane pump of the prior art shown in Figure 1,

An inlet port 1 through which fluid is introduced from the outside and a discharge port 2 through which pressurized fluid is discharged, and an inner surface 3 of which has an elliptical pump housing 4,

A rotor 7 rotatably installed by the shaft 6 in an eccentric state in the operating chamber 5 of the pump housing 4,

A vane 9 which is slidably coupled to the vane groove 8 radially formed in the rotor 7 and whose front end portion is in close contact with the inner surface 3 by sliding of the rotor 7,

It includes an elastic member 10 (compression coil spring is used) for elastically biasing the tip portion of the vane 9 in close contact with the inner surface 3.

Therefore, when the rotor 7 moves in a circular motion due to the rotation of the shaft 6, the tip portion of the vane 9 slides along the vane groove 8 to make sliding contact with the inner surface 3. As a result, as the volume of the operating chamber 5 varies, fluid may enter the operating chamber 5 through the suction port 1, and the pressurized fluid may be discharged through the discharge port 2.

The vane pump of the prior art has a relatively wide width (w) of the vanes 9 so as to secure the strength of the vanes 9 or to stably move the vanes 9 during the circular motion of the rotor 7. It will be machined to large dimensions.

In this way, when the width of the vanes 9 is increased, the tip of the vanes 9 is in close contact with the elliptical inner surface 3 and it is difficult to make sliding contact. This may cause fluid to leak through the gap between the inner surface 3 of the operating chamber 5 and the tip of the vane 9. In this case, there is a problem that the efficiency of the pump is lowered and reliability is lowered.

Embodiment of the present invention, the vane coupled to the vane groove of the rotor is stable in the radial direction by the centrifugal force during the circular motion of the rotor rotatably installed in the state that the inner surface is eccentric to the operating chamber of the pump housing formed in an elliptical shape It is related to a double elliptical vane pump that can be moved by sliding in the furnace, and the vane tip is in close contact with the inner surface of the pump housing so as to be in sliding contact.

Embodiments of the present invention relate to a bi-oval vane pump in which separate parts are not required for adjusting the lift amount and the fall amount of the vane sliding radially along the vane groove during the circular motion of the rotor.

Twin elliptic vane pump according to an embodiment of the present invention,

Twin elliptic vane pump according to another embodiment of the present invention,

A pump housing having a suction port through which fluid is sucked from the outside and a discharge port through which pressurized fluid is discharged, an inner surface of which is formed in an elliptical shape, and having first and second operating chambers separated by partition walls;

A first rotor rotatably installed in a forward or reverse direction in an eccentric state in a lower side of the first operating chamber of the pump housing, and having a vane groove formed in a + shape direction;

A second rotor installed rotatably in a forward or reverse direction in an eccentric state on an upper side of the second operating chamber of the pump housing, and having a vane groove formed in a + -shaped direction, interlocked with the first rotor, and rotating in the opposite direction;

A first vane slidably coupled to the vane groove of the first rotor, the first vane being in sliding contact with the inner surface of the first operating chamber by a centrifugal force when the first rotor is rotated,

Slidingly coupled to the vane groove of the second rotor, the front end is in close contact with the inner surface of the second operating chamber by the centrifugal force of the second rotor to be in sliding contact, and to rotate alternately with respect to the rotation angle of the first vane. The second vane deployed,

A first stopper having radially formed vane grooves to which the first vanes are coupled, respectively, fixed to the left and right sides of the first rotor to prevent the first vanes from being moved in a direction perpendicular to the sliding movement direction;

A second stopper having radial vanes to which the second vanes are coupled, respectively, and fixed to the left and right sides of the second rotor to prevent the second vanes from moving in a direction perpendicular to the sliding movement direction;

It is provided on the right and left sides of the operating chamber of the pump housing, and provided with end plates rotatably supporting the first and second rotors,

The first vane sliding along the vane groove according to the rotation of the first rotor pressurizes the fluid suctioned from the inlet to the first operating chamber to the discharge port, and the vane groove is driven by the second rotor interlocked with the first rotor. The fluid is sucked from the suction port to the second operation chamber by the second vane which is slid along the pressure, and is transferred to the discharge port side.

A first rotor rotatably installed in the forward or reverse direction in an eccentric state in a lower side of the first operating chamber of the pump housing, and having a vane groove formed in a straight shape;

A second rotor rotatably installed in the forward or reverse direction in an eccentric state on the upper side of the second operating chamber of the pump housing, and having a vane groove formed in a straight shape, and interlocked with the first rotor and rotated in the opposite direction;

Slidingly coupled to the vane groove of the second rotor, the front end is in close contact with the inner surface of the second operating chamber by the centrifugal force of the second rotor to be in sliding contact, and to rotate at a right angle to the rotation angle of the first vane The second vane deployed,

A first stopper in which a vane groove to which the first vanes are coupled is formed in a straight shape and fixed to the left and right sides of the first rotor to prevent the first vanes from moving in a direction perpendicular to the sliding movement direction,

A second stopper in which a vane groove to which the second vanes are coupled is formed in a straight shape and fixed to the left and right sides of the second rotor, respectively, to prevent the second vane from moving in a direction perpendicular to the sliding movement direction;

A rotor rotatably installed in a forward or reverse direction in an eccentric state of the pump housing, and having a vane groove formed in a straight direction;

A stopper to which the vanes are coupled is radially formed and fixed to either one of the left and right sides of the rotor to prevent the vanes from moving in a direction perpendicular to the sliding movement direction;

A pump housing having a suction port through which fluid is sucked from the outside and a discharge port through which pressurized fluid is discharged, an inner surface of which is formed in an elliptical shape, and having first and second operating chambers formed to have an outer surface of the inner surface;

A second rotor rotatably installed in the positive or reverse direction in an eccentric state on the upper side of the second operating chamber of the pump housing, and having a vane groove formed in a + -shaped direction, interlocked with the first rotor, and rotating in the opposite direction;

A first stopper having radially formed vane grooves to which the first vanes are coupled, respectively, fixed to left and right sides of the first rotor to prevent the first vanes from being moved in a direction perpendicular to the sliding movement direction;

A stopper in which a vane groove to which the first vanes are coupled is formed in a straight direction, and fixed to either one of left and right sides of the first rotor to prevent the first vanes from moving in a direction perpendicular to the sliding movement direction;

According to a preferred embodiment, the cutting surface is formed at an inclination angle with respect to the rotation direction of the rotor at the tip of the vane so that the fluid sucked into the operating chamber through the suction port according to the forward rotation of the rotor can be cut and transported by the vane. With cutout to form,

It includes a curved portion formed in the direction of rotation of the rotor to the front end of the vane so that the fluid in the operating chamber can be pushed by the vane in accordance with the reverse rotation of the rotor.

The vanes mentioned above,

The tip of the pump housing in accordance with the rotation of the rotor is in close contact with the wing is formed symmetrically to transport the fluid, and integrally formed with the wing and the connecting portion for connecting the wing.

The cutout of the vane mentioned above,

A first cutout that forms a cutting surface in a direction perpendicular to the rotational direction of the rotor at the tip of the vane, and a second cutout that is formed to be inclined in the rotational direction of the rotor at the end of the first cutout.

A notch part which forms an inclined angle with respect to the rotation direction of the first and second rotors to form the cutting surface at the front end portions of the first and second vanes, respectively,

And a curved portion formed in the rotational direction of the first and second rotors, respectively, at the distal end of the first and second vanes.

The first and second vanes described above,

It is provided with a wing portion symmetrically formed to be in close contact with the inner surface of the pump housing according to the rotation of the first and second rotor to transfer the fluid, and a connecting portion formed integrally with the wing portion to connect the wing portion.

The cutouts of the first and second vanes described above are

First cutouts each having a cutting surface formed at a right angle with respect to the rotational direction of the first and second rotors at the distal ends of the first and second vanes, respectively, and in the rotational direction of the first and second rotors at the ends of the first cutouts The second cutouts are formed to be inclined respectively.

The inner surface of the operation chamber of the pump housing on the side where the above-mentioned rotor is inscribed is formed to form a circle by symmetry with respect to the center of rotation of the rotor with respect to the left and right.

The inner side of the operating chamber of the pump housing, which extends to the epicenter and faces the epicenter, forms an ellipse by forming an ellipse symmetrically with respect to the center of rotation of the rotor.

The above-described distance value passing through the center of rotation of the rotor and connecting both ends of the circular part, and distance value passing through the center of rotation of the rotor and connecting the top dead center of the circle and the bottom dead center of the ellipse are formed to have the same size.

It is formed in each of the vane groove of the rotor described above, and includes a locking step for limiting the amount of movement of the vane when the vane is moved along the vane groove due to the rotation of the rotor.

The twin elliptic vane pump according to the embodiment of the present invention configured as described above has the following advantages.

In the circular motion of the rotor eccentrically installed in the operating chamber of the pump housing, the inner side of which is formed in an elliptical shape, the vane coupled to the vane groove of the rotor is slidably moved radially in a stable state by centrifugal force, and the outer end of the vane is pump housing. It is in close contact with the inner surface of the sliding contact so as to improve the efficiency of the pump can be improved reliability.

In addition, during the circular motion of the rotor, a separate part for adjusting the rising and falling amount of the vane sliding radially along the vane groove is unnecessary, so that the cost and assembly cost can be reduced by reducing the number of parts.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to describe in detail enough to enable those skilled in the art to easily practice the invention, and therefore It does not mean that the technical spirit and scope of the present invention is limited.

The twin circular vane pump according to one embodiment (first embodiment) of the present invention shown in Figures 2 to 5 (a, b),

A pump housing 14 having a suction port 11 through which fluid is sucked from the outside and a discharge port 12 through which pressurized fluid is discharged, and an operation chamber 13 having an inner side formed in an elliptical shape,

A rotor 16 rotatably installed in the operating chamber 13 of the pump housing 14 in a forward or reverse direction, and having a vane groove 15 formed in a + shape direction;

Vanes 17 and 17a coupled to the vane groove 15 so as to be slidably moved, the tip being in close contact with the inner surface of the operation chamber 13 by the centrifugal force when the rotor 16 rotates,

The vane grooves 15 to which the vanes 17 and 17a are coupled are formed radially, respectively, and fixed to the left and right sides of the rotor 16 so that the vanes 17 and 17a are moved at right angles to the sliding movement direction. Stoppers 18 and 19 for preventing the

End plates 27 and 28 mounted on the right and left sides of the operation chamber 13 of the pump housing 14 and rotatably supporting the rotor 16 are provided.

When the volume between the vanes 17 and the vanes 17a in the operating chamber 13 is enlarged as the rotor 16 rotates, the fluid is sucked into the operating chamber 13 through the inlet 11 and the operating chamber When the volume between the vanes 17 and vanes 17a in 13 is reduced in size, fluid is discharged from the operating chamber 13 through the discharge port 12.

At this time, the rotor at the distal end of the vanes 17 and 17a so that the fluid sucked into the operating chamber through the suction port 11 according to the forward rotation of the rotor 16 can be cut and transported by the vanes 17 and 17a. Cutout portion 20 to form a cutting surface by making an inclination angle with respect to the rotation direction of (16),

A curved portion formed in the rotational direction of the rotor 16 at the tip of the vanes 17 and 17a so that the fluid in the operating chamber can be pushed by the vanes 17 and 17a according to the reverse rotation of the rotor 16. 21).

The vanes 17 and 17a described above are

According to the rotation of the rotor 16, the tip portion is in close contact with the inner surface of the pump housing 14 and is formed symmetrically to transfer the fluid, and the wing portion 22 is integrally formed with the wing portion ( 22 is provided with a connecting portion 23 for connecting.

The cutouts 20 of the vanes 17 and 17a described above are

The first cutout 20a, which forms a cutting surface at right angles to the rotational direction of the rotor 16 at the distal end of the vanes 17, 17a, and the end of the rotor 16 at the end of the first cutout 20a. The second cutout 20b is formed to be inclined in the rotational direction.

The inner surface of the operation chamber 13 of the pump housing 14 on the side where the rotor 16 is inscribed is a circle having a round symmetry with respect to the rotation center point O of the rotor 16. 24)

The inner surface of the operating chamber 13 of the pump housing 14, which extends to the epicenter 24 and faces the epicenter 24, is symmetrical with respect to the rotational center point O of the rotor 16. An ellipse is formed to form an ellipse portion 25.

In the vane groove 15 of the rotor 16 described above, when the vanes 17 and 17a slide along the vane groove 15 due to the rotation of the rotor 16, the vanes 17 and 17a. It includes a locking step (16a) for limiting the amount of movement within a predetermined range (say between the outer peripheral surface of the rotor 16 and the inner surface of the operating chamber 13).

The distance (c) passing through the center of rotation (O) of the rotor 16 and connecting both ends of the epicenter (24) and the center of rotation (O) through the center of rotation (O) of the rotor (16) The distance value (b) connecting the top dead center and the bottom dead center of the ellipse portion 25 is formed in the same size.

In the drawing, reference numeral 26 is a driving unit including a driving motor for rotating the rotor 16 by rotating in the forward or reverse direction when power is supplied from the outside.

Hereinafter, the operation of the bi-elliptic vane pump according to an embodiment (first embodiment) of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 4 and 5 (a, b), when power is supplied from the outside and the drive motor is rotated, the shafts of the stoppers 18 and 19 integrally connected to the rotary shaft of the above-described drive motor by a connector. This causes the rotor 16 to rotate in the forward direction (say clockwise). That is, the rotor 16 is rotated in an eccentric state in the operating chamber 13 of the pump housing 14, the inner surface of which is formed in an elliptical shape.

That is, the inner surface of the operating chamber 13 is inscribed with the rotor 16 and the inner surface of the operating chamber 13 forming a semicircular contact with a straight line in the X-axis direction passing through the rotational center point O of the rotor 16 is The inner surface of the operation chamber 13, which is formed of the round part 24 and extends in the round part 24 and faces the round part 24, is formed of an ellipse part 25.

The distance value c which passes through the rotation center point O of the rotor 16 and connects both ends of the epicenter 24, and passes through the rotation center point O of the rotor 16 and the epicenter 24 The distance value (b) connecting the top dead center of) and the bottom dead center of the ellipse portion 25 is formed to have the same size.

At this time, the rounded portion 24 and the ellipse portion 25 are formed in a circle and an ellipse respectively symmetrically with respect to a straight line in the Y-axis direction passing through the rotation center point O of the rotor 16.

Therefore, the amount of movement of the vanes 17 and 17a which slides along the vane groove 15 due to the centrifugal force during the rotation of the rotor 16 and is in sliding contact with the inner surface of the operating chamber 13 is rotated by the rotor 16. It is the same at all rotation angles with the central point O as the central axis.

The operating chamber in which the tip portions of the vanes 17 and 17a slidably coupled to the vane groove 15 formed in the + 16 direction in the rotor 16 by the centrifugal force due to the circular motion of the rotor 16 are formed in an elliptical shape. It comes in close contact with the inner surface of 13 and is in sliding contact.

For this reason, as shown in FIG. 5 (a), when the vanes 17 coupled to the vane grooves 15 of the rotor 16 maintain the horizontal direction, one end of the vanes 17 (in the figure, the right side) The end portion is in close contact with the inner surface of the operation chamber 13 on the suction port 11 side, and the other front end portion (left side end) of the vane 17 is in close contact with the inner surface of the operation chamber 13 on the discharge port 12 side. (That is, the tip of the vane 17 is in close contact with both ends of the epicenter 24 of the operating chamber 13).

On the other hand, when the vane 17a coupled to the rotor 16 by maintaining the + -shaped direction with respect to the vane 17 maintains the vertical direction, one end of the vane 17a is caused by centrifugal force during rotation of the rotor 16. (In the figure, the upper end part) slides toward the center of the rotor 16 along the vane groove 15, and is in close contact with the inner side of the center of the epicenter 24 of the operation chamber 13. At this time, the vanes 17a are moved within the set range in which the vanes 17a are slid along the vane groove 15 by the locking step 16a formed in the rotor 16.

At the same time, the other front end portion (in the figure, the lower end portion) of the vane 17a slides toward the inner side surface of the operating chamber 13 along the vane groove 15 to move toward the center of the ellipse portion 25 of the operating chamber 13. It adheres to the inner side.

As shown in FIG. 5 (b), due to the centrifugal force caused by the rotation of the rotor 16, the tip of the vane 17 contacts the inner surface from the epicenter 24 of the operating chamber 13 toward the ellipse 25. In the closed state, the front end portion of the vane 17a is slidably moved to protrude toward the outer surface of the rotor 16 along the vane groove 15 through the vertex of the epicenter 24. As a result, when the volume between the vane 17 and the vane 17a sliding along the vane groove 15 increases, the operating chamber 13 of the pump housing 14 receives the fluid flowing through the inlet 11. Can be inhaled.

On the contrary, the tip of the vane 17 is slidably moved from the ellipse 25 of the operation chamber 13 to the inner surface 24 toward the epicenter 24, and the tip of the vane 17a is the ellipse 25. FIG. Passing through the lowest end of the sliding along the vane groove (15) toward the center of the rotor (16). As a result, when the volume between the vanes 17 and the vanes 17a sliding along the vane groove 15 is reduced, the fluid or the like in the operating chamber 13 is discharged through the outlet 12 to the outside of the pump housing 14. Can be discharged.

At this time, as the notches 20 and 20a and 20b are formed at the front end portions of the vanes 17 and 17a to form an inclined angle with respect to the rotational direction of the rotor 16 to form a cutting surface, the rotor 16 rotates in the forward direction. When the fluid is sucked through the inlet 11 by the suction, the fluid is sucked while being cut by the cutout 20 even when the fluid contains impurities such as bar sticks, so that the fluid can be sucked smoothly. have.

On the other hand, although not shown in the figure, when the rotor 16 is rotated in the reverse direction, the vane for pushing the fluid by the curved portion 21 formed in the rotational direction of the rotor 16 to the front end of the vanes (17, 17a) The thrust of (17, 17a) can be increased.

As described above, since the vanes 17 and 17a are slid along the vane groove 15 formed in the + 16 direction in the rotor 16 due to the centrifugal force when the rotor 16 is rotated, the vanes 17 and 17a are moved. The tip portion is in sliding contact with the inner surface of the operation chamber 13 of the pump housing 14 in which the inner surface is elliptical.

At this time, a portion of the inner surface of the operation chamber 13 in which the rotor 16 is inscribed is formed as the epicenter 24, and is formed in the epicenter 24 and opposed to the epicenter 24. As the inner surface is formed of the ellipse portion 25, the tip portions of the vanes 17 and 17a sliding along the vane groove 15 when the rotor 16 rotates are always in close contact with the inner surface of the operation chamber 13. It comes in sliding contact.

The bi-elliptic vane pump according to another embodiment (second embodiment) of the present invention shown in Figure 7 (a, b),

A rotor 16 installed in the operating chamber 13 of the pump housing 14 so as to be rotated in a forward or reverse direction and having a vane groove 15 formed in a straight shape;

A vane 17 coupled to the vane groove 15 so as to be slidably movable, the tip 17 being in close contact with the inner surface of the operation chamber 13 by the centrifugal force when the rotor 16 rotates, and being in sliding contact;

A vane groove 15 to which the vanes 17 are coupled is radially formed and fixed to either one of the left and right sides of the rotor 16 to prevent the vanes 17 from moving in a direction perpendicular to the sliding movement direction. With a stopper 18,

When the volume between the vanes 17 and the vanes 17 in the operating chamber 13 is enlarged as the rotor 16 rotates, the fluid is sucked into the operating chamber through the inlet 11, and the operating chamber 13 When the volume between the vanes 17 and the vanes 17 in the inside is reduced in size, fluid is discharged from the operation chamber 13 through the discharge port 12.

At this time, the vane groove 15 is formed in a linear shape in the rotor 16 described above, the vane 17 is slidably coupled to the vane groove 15, and the vane is fixed to one side of the rotor 16 Except for the stopper 18 (the stopper restricting the movement of the vanes 17 on the other side of the rotor 16 is integrally formed in the rotor 16) except for the movement perpendicular to the sliding movement direction of the 17). Since the configuration is substantially the same as the configuration of the vane pump according to an embodiment of the present invention, detailed descriptions of the configuration and operation thereof are omitted and overlapping reference numerals are denoted by the same.

In the twin elliptic vane pump according to another embodiment (third embodiment) of the present invention shown in FIG. 8,

The first and second operating chambers having an inlet port 11 through which fluid is sucked from the outside and a discharge port 12 through which pressurized fluid is discharged are formed, and inner surfaces thereof are elliptical, respectively, are separated by partition walls 29 ( 30 and 31 pump housing 14 is provided

A first rotor 32 installed rotatably in a forward or reverse direction in an eccentric state in a lower side of the first operating chamber 30 of the pump housing 14, and in which the vane groove 15 is formed in a + shape direction;

It is installed on the upper side of the second operating chamber 31 of the pump housing 14 so as to rotate in the forward or reverse direction, the vane groove 15 is formed in the + -shaped direction, and interlocked with the first rotor 32. And the second rotor 33 rotated in the opposite direction,

Slidingly coupled to the vane groove 15 of the first rotor 32, the front end is in close contact with the inner surface of the first operating chamber 30 by the centrifugal force during the rotation of the first rotor 32 is in sliding contact The first vane 34,

Slidingly coupled to the vane groove 15 of the second rotor 33, the front end portion is in close contact with the inner surface of the second operating chamber 31 by the centrifugal force of the second rotor 33, the sliding contact, A second vane 35 disposed to rotate alternately with respect to the rotation angle of the first vane 34,

The vane grooves 15 to which the first vanes 34 are coupled are radially formed, respectively, and fixed to the left and right sides of the first rotor 32 so that the first vanes 34 are perpendicular to the sliding movement direction. A first stopper 36 for preventing movement,

The vane grooves 15 to which the second vanes 35 are coupled are radially formed, respectively, and fixed to the left and right sides of the second rotor 33 so that the second vanes 35 are perpendicular to the sliding movement direction. A second stopper 37 for preventing movement,

It is equipped with end plates (not shown) mounted on the right and left sides of the operation chamber 13 of the pump housing 14 and rotatably supporting the first and second rotors 32 and 33.

The discharge port 12 is pressurized by the fluid suctioned from the suction port 11 to the first operating chamber 30 by the first vane 34 sliding along the vane groove 15 as the first rotor 32 rotates. To the second operating chamber (2) from the suction port (11) by the second vane (35) which is moved along the vane groove (15) by the second rotor (33) interlocked with the first rotor (32). The fluid sucked in 31 is pressurized and transferred to the discharge port 12 side.

In this case, the pump housing 14 is interlocked with the first and second operating chambers 30 and 31 and the first and second operating chambers 30 and 31 separated by the partition wall 29 so as to be rotatable in opposite directions. First and second vanes 34 slidably coupled to the first and second rotors 32 and 33 to be installed and the vane grooves 15 formed in the + -shaped directions to the first and second rotors 32 and 33. , 35) is substantially the same as the configuration of the vane pump according to an embodiment of the present invention, the detailed description of the configuration and operation thereof will be omitted and overlapping reference numerals are the same.

The bi-elliptic vane pump according to another embodiment (fourth embodiment) of the present invention shown in Figure 9,

The first and second operating chambers having a suction port 11 through which the fluid is sucked from the outside and a discharge port 12 through which the pressurized fluid is discharged are formed, and inner surfaces thereof are formed in an elliptical shape and separated by the partition wall 29 ( A pump housing 14 provided with 30 and 31,

A first rotor 32 installed rotatably in a forward or reverse direction in an eccentric state in a lower side of the first operating chamber 30 of the pump housing 14, and the vane groove 15 having a straight shape;

It is installed on the upper side of the second operating chamber 31 of the pump housing 14 so as to be rotated in the forward or reverse direction, the vane groove 15 is formed in a straight shape, and interlocked with the first rotor 32 to oppose A second rotor 33 rotated in a direction;

Slidingly coupled to the vane groove 15 of the second rotor 33, the front end portion is in close contact with the inner surface of the second operating chamber 31 by the centrifugal force of the second rotor 33, the sliding contact, A second vane 35 disposed to rotate at a right angle with respect to the rotation angle of the first vane 34;

The vane groove 15 to which the first vanes 34 are coupled is formed in a straight direction and is fixed to any one of the left and right sides of the first rotor 32 so that the first vanes 34 are perpendicular to the sliding movement direction. A first stopper 36 for preventing movement in the direction;

At this time, the vane groove 15 is formed in the first and second rotors (32, 33) in the form of a straight line, the first and second vanes (34, 35) are slidably coupled to the vane groove (15), A first stopper 36 fixed to one side of the first and second rotors 32 and 33 to restrict movement in a direction perpendicular to the sliding direction of the first and second vanes 34 and 35 (first and second); Except for the stopper for restricting the movement of the first and second vanes 34 and 35 on the other side of the rotors 32 and 33, the stopper is formed integrally with the first and second rotors 32 and 33). Since the configuration of the vane pump according to still another embodiment is substantially the same, detailed descriptions of the configuration and operation thereof are omitted and overlapping reference numerals are the same.

In the twin elliptic vane pump according to another embodiment (fifth embodiment) of the present invention shown in FIG.

The first and second operating chambers 30 having an inlet 11 through which fluid is sucked from the outside and a discharge port 12 through which pressurized fluid is discharged are formed, and inner surfaces thereof are formed in an elliptical shape, and inner surfaces are formed externally. 31 is provided with a pump housing (14),

It is installed rotatably in the forward or reverse direction in an eccentric state on the upper side of the second operating chamber 31 of the pump housing 14, the vane groove 15 is formed in the + -shaped direction, and the first rotor 32 and The second rotor 33 is interlocked and rotated in the opposite direction,

The discharge port 12 is pressurized by the fluid suctioned from the suction port 11 to the first operating chamber 30 by the first vane 34 sliding along the vane groove 15 as the first rotor 32 rotates. To the second operating chamber (2) from the suction port (11) by the second vane (35) which is moved along the vane groove (15) by the second rotor (33) interlocked with the first rotor (32). The fluid sucked in 32 is pressurized and transferred to the discharge port 12 side.

In this case, the inner and outer surfaces of the pump housing 14 are formed to be circumscribed with the first and second operating chambers 30 and 31 and the first and second operating chambers 30 and 31 so as to be rotatably installed in opposite directions. First and second vanes 34 and 35 that are slidably coupled to the first and second rotors 32 and 33 and the vane grooves 15 formed in the + and second directions on the first and second rotors 32 and 33. Since the configuration except for) is substantially the same as the configuration of the vane pump according to another embodiment (second embodiment) of the present invention, detailed descriptions of the configuration and operation thereof are omitted and overlapping reference numerals are the same. .

11 is a double elliptic vane pump according to another embodiment (sixth embodiment) of the present invention,

It is installed on the upper side of the second operating chamber 31 of the pump housing 14 so as to be rotated in the forward or reverse direction, the vane groove 15 is formed in a straight shape, interlocked with the first rotor 32 A second rotor 33 rotated in an opposite direction,

The vane groove 15 to which the first vanes 34 are coupled is formed in a straight shape and is fixed to any one of the left and right sides of the first rotor 32 so that the first vanes 34 are perpendicular to the sliding movement direction. A first stopper 36 for preventing movement to

At this time, the vane groove 15 is formed in the first and second rotors (32, 33) in the form of a straight line, the first and second vanes (34, 35) are slidably coupled to the vane groove (15), A first stopper 36 fixed to one side of the first and second rotors 32 and 33 to restrict movement in a direction perpendicular to the sliding direction of the first and second vanes 34 and 35; The construction of the second rotor 32 and 33 except for a stopper for restricting movement of the first and second vanes 34 and 35 is integrally formed with the first and second rotors 32 and 33). Since the configuration of the vane pump according to another embodiment (fifth embodiment) is substantially the same, detailed descriptions of their configuration and operation are omitted and overlapping reference numerals are denoted by the same.

1 is a schematic view of a vane pump according to the prior art,

Figure 2 is an exploded perspective view of a twin elliptic vane pump according to an embodiment of the present invention,

3 is a perspective view of a twin elliptic vane pump according to an embodiment of the present invention;

4 is a view for explaining that the inner surface of the pump housing is formed in an elliptical, in the elliptic vane pump according to an embodiment of the present invention,

5 (a, b) is a view for explaining the operation of the vanes in the bi-oval vane pump according to an embodiment of the present invention,

6 is a state diagram used in the double elliptic vane pump according to an embodiment of the present invention,

Figure 7 (a, b) is a schematic diagram of a twin elliptic vane pump according to another embodiment of the present invention,

8 is a schematic view of a twin elliptic vane pump according to another embodiment of the present invention;

9 is a schematic diagram of a twin elliptic vane pump according to another embodiment of the present invention;

10 is a schematic diagram of a twin elliptic vane pump according to another embodiment of the present invention;

11 is a schematic diagram of a twin elliptic vane pump according to another embodiment of the present invention;

FIG. 12 is a perspective view of the twin elliptic vane pump illustrated in FIG. 7.

* Explanation of symbols used in the main part of the drawing

11; Inlet

12; Outlet

13; Operating room

14; Pump housing

15; Vane home

16; Rotor

17,17a; Vane

18,19; Stopper

20; Cutout

21; Curved part

22; Wing

23; Connection

24; Epicenter

25; Elliptic part

26; Driving part

27,28; End plate

29; septum

30; 1st operating room

31; 2nd operation room

32; First rotor

33; 2nd rotor

34; First Bain

35; 2nd Bain

36; First stopper

37; 2nd stopper

Claims

A pump housing having a suction port through which the fluid is sucked from the outside and a discharge port through which the pressurized fluid is discharged, and an operating chamber having an inner surface formed in an elliptical shape;

A rotor rotatably installed in a forward or reverse direction in an eccentric state in the operating chamber of the pump housing and having a vane groove formed in a + shape direction;

A vane coupled to the vane groove so as to be slidably moved, the vane being in sliding contact with the inner end of the operating chamber by the centrifugal force when the rotor is rotated;

A stopper to which the vanes are coupled to each other are radially formed and fixed to left and right sides of the rotor to prevent the vanes from moving in a direction perpendicular to the sliding movement direction; And

An end plate mounted on both left and right sides of the operating chamber of the pump housing and rotatably supporting the rotor,

When the volume between the vanes and vanes in the operating chamber is enlarged as the rotor rotates, the fluid is sucked into the operating chamber through the suction port, and the volume between the vanes and the vanes in the operating chamber is reduced. In the case of a double elliptical vane pump, characterized in that for discharging the fluid from the operating chamber through the discharge port.

According to claim 1, In accordance with the forward rotation of the rotor inclined angle with respect to the rotation direction of the rotor to the front end of the vane so that the fluid sucked into the operating chamber through the suction port can be cut by the vane. Cut out to form a cutting surface,

And a curved portion formed in the direction of rotation of the rotor at the distal end of the vane so as to push and transport the fluid in the operating chamber by the vane in response to the reverse rotation of the rotor.

The vane of claim 1 or 2, wherein the vane is

And a wing portion that is symmetrically formed so that the tip portion is in close contact with the inner surface of the pump housing to transfer the fluid as the rotor rotates, and a connection portion that is integrally formed with the wing portion and jointly connects the wing portion to the pump housing. Double elliptical vane pump.

According to claim 2, The cutout of the vane,

A first cutout forming a cutting surface in a direction perpendicular to the rotational direction of the rotor at a tip end of the vane, and a second cutout formed at an end of the first cutout so as to be inclined in the rotational direction of the rotor. Twin elliptical vane pump, characterized in that.

According to claim 1 or 2, wherein the inner surface of the operating chamber of the pump housing of the side in which the rotor is inscribed, rounded symmetrically with respect to the center of rotation of the rotor to form a rounded part,

The elliptical vane extending from the circular part, the inner surface of the operation chamber of the pump housing opposite to the circular part, forms an ellipse by forming an ellipse symmetrically with respect to the center of rotation of the rotor. Pump.

According to claim 5, The distance value passing through the center of rotation of the rotor and connecting the both ends of the circular part, and the distance value passing through the center of rotation of the rotor and connecting the top dead center of the epicenter and the bottom dead center of the ellipse is Twin elliptical vane bumps, characterized in that formed in the same size.

According to claim 1 or 2, wherein each formed in the vane groove of the rotor, when the vane is moved along the vane groove due to the rotation of the rotor, the locking step of limiting the amount of movement of the vane within a predetermined range Twin elliptic vane pump comprising a.

A rotor rotatably installed in a forward or reverse direction in an eccentric state of the pump housing and having a vane groove formed in a straight shape;

A vane coupled to the vane groove so as to be slidably moved, the vane being in sliding contact with the inner end of the operating chamber by a centrifugal force when the rotor is rotated;

A stopper to which the vanes to which the vanes are coupled are radially formed and fixed to either one of left and right sides of the rotor to prevent the vanes from moving in a direction perpendicular to the sliding movement direction; And

According to claim 8, In accordance with the forward rotation of the rotor inclined angle with respect to the rotation direction of the rotor to the front end of the vane so that the fluid sucked into the operating chamber through the suction port can be cut by the vane. Cut out to form a cutting surface,

The method of claim 8 or 9, wherein the vane,

The method of claim 9, wherein the cutout of the vane,

The inner surface of the operating chamber of the pump housing on the side in which the rotor is inscribed, wherein the inner part of the operating chamber of the pump housing is symmetrically rounded with respect to the center of rotation of the rotor to form a rounded part.

13. The method of claim 12, wherein a distance value passing through the center of rotation of the rotor and connecting both ends of the epicenter, and a distance value passing through the center of rotation of the rotor and connecting the top dead center of the epicenter and the bottom dead center of the ellipse are Twin elliptical vane bumps, characterized in that formed in the same size.

10. The locking jaw of claim 8 or 9, wherein each of the vanes is formed in the vane groove of the rotor, and when the vanes are slid along the vane groove due to the rotation of the rotor, the stopping jaw is limited within a predetermined range. Twin elliptic vane pump comprising a.

A second rotor installed rotatably in a forward or reverse direction in an eccentric state on an upper side of the second operating chamber of the pump housing, and having a vane groove formed in a + -shaped direction, interlocked with the first rotor, and rotating in an opposite direction;

A first vane slidably coupled to the vane groove of the first rotor, the first vane being in sliding contact with the inner side of the first operating chamber by a centrifugal force when the first rotor is rotated;

Slidingly coupled to the vane groove of the second rotor, the front end portion is in close contact with the inner surface of the second operating chamber by the centrifugal force of the second rotor is in sliding contact, the rotation angle of the first vane A second vane disposed to rotate in an arc;

A first stopper radially formed at each of the vane grooves to which the first vanes are coupled, and fixed to left and right sides of the first rotor to prevent the first vanes from moving in a direction perpendicular to a sliding movement direction;

A second stopper having radial vanes to which the second vanes are coupled to each other, the second vanes being fixed to left and right sides of the second rotor to prevent the second vanes from moving in a direction perpendicular to the sliding movement direction; And

An end plate mounted on both sides of the operation chamber of the pump housing and supporting the first and second rotors rotatably,

The first vane sliding along the vane groove according to the rotation of the first rotor to pressurize the fluid suctioned from the suction port to the first operating chamber to the discharge port side, the second rotor interlocked with the first rotor And a second elliptical vane pump for pressurizing the fluid suctioned from the suction port to the second operation chamber by the second vane sliding along the vane groove.

The notch part of claim 15, wherein a cutout portion is formed at an end of each of the first and second vanes to form an inclination angle with respect to the rotation direction of the first and second rotors, respectively.

And a curved portion formed in the rotational direction of the first and second rotors, respectively, at the front end portions of the first and second vanes.

The method of claim 15 or 16, wherein the first and second vanes,

The wing part is formed symmetrically to transfer the fluid by the tip portion is in close contact with the inner surface of the pump housing in accordance with the rotation of the first and second rotor, and the connecting portion is formed integrally with the wing portion to jointly connect the wing portion Twin elliptical vane pump, characterized in that provided.

The cutout of the first and second vanes,

First and second rotors each having a cutting surface formed at a right angle with respect to the rotational direction of the first and second rotors at the distal ends of the first and second vanes, respectively; And a second cutout portion which is formed to be inclined in the rotational direction of the double elliptical vane pump.

The inner surface of the operating chamber of the pump housing on the side in which the first and second rotors are inscribed, the circle of the left and right symmetry with respect to the center of rotation of the first and second rotors. Formed a circle,

An inner surface of the first and second operating chambers of the pump housing, which extends from the circular part and faces the circular part, forms an ellipse to be symmetrically symmetrically based on the rotation center of the first and second rotors. Twin elliptical vane pump, characterized in that.

20. The method according to claim 19, wherein a distance value passing through the center of rotation of the first and second rotors and connecting both ends of the circular part and a center of rotation of the first and second rotors and passing through the center of rotation of the first and second rotors are defined. A double elliptic vane bump, characterized in that the distance value connecting the bottom dead center is formed in the same size.

According to claim 15 or 16, When formed in the vane grooves of the first and second rotors, respectively, The first and second vanes are slidingly moved along the vane grooves due to the rotation of the first and second rotors, And a locking jaw for limiting the movement amount of the first and second vanes within a predetermined range.

A first rotor rotatably installed in a forward or reverse direction in an eccentric state in a lower side of the first operating chamber of the pump housing, and having a vane groove formed in a straight shape;

A second rotor rotatably installed in a forward or reverse direction in an eccentric state on an upper side of the second operating chamber of the pump housing, and having a vane groove formed in a straight shape, and interlocked with the first rotor in a opposite direction;

Slidingly coupled to the vane groove of the second rotor, the front end is in close contact with the inner surface of the second operating chamber by the centrifugal force of the second rotor is in sliding contact, with respect to the rotation angle of the first vane A second vane disposed to rotate at a right angle;

A stopper in which a vane groove to which the first vane is coupled is formed in a straight direction and fixed to one of left and right sides of the first rotor to prevent the first vane from moving in a direction perpendicular to a sliding movement direction; And

23. The method of claim 22, wherein the notch portion for forming the cutting surface to form an inclination angle with respect to the rotation direction of the first and second rotor, respectively, at the front end of the first and second vanes,

The method of claim 22 or 23, wherein the first and second vanes,

The wing part is symmetrically formed so that the front end part is in close contact with the inner side of the pump housing according to the rotation of the first and second rotors, and the fluid is connected to the wing part. Twin elliptic vane pump, characterized in that it comprises a.

24. The method of claim 23, wherein the cutouts of the first and second vanes,

The inner side surface of the 1st, 2nd operation chamber of the said pump housing of the side in which the said 1st, 2nd rotor is inscribed left and right on the basis of the rotation center point of the said 1st, 2nd rotor. Symmetrically rounded to form a rounded part,

27. The method of claim 26, wherein the distance passing through the center of rotation of the first and second rotors and connecting both ends of the circular portion, and through the center of rotation of the first and second rotors, the top dead center and the elliptic portion A double elliptic vane bump, characterized in that the distance value connecting the bottom dead center is formed in the same size.

According to claim 22 or 23, When formed in the vane groove of the first and second rotor, respectively, The first and second vanes are slidingly moved along the vane groove due to the rotation of the first and second rotor, And a locking jaw for limiting the movement amount of the first and second vanes within a predetermined range.

A second rotor rotatably installed in a forward or reverse direction in an eccentric state on an upper side of the second operating chamber of the pump housing, and having a vane groove formed in a + -shaped direction, interlocked with the first rotor, and rotating in an opposite direction; ;

Slidingly coupled to the vane groove of the second rotor, the front end is in close contact with the inner surface of the second operating chamber by the centrifugal force of the second rotor is in sliding contact with respect to the rotation angle of the first vane A second vane disposed to rotate alternately;

A first stopper to which the vane grooves to which the first vanes are coupled are formed radially, respectively, and fixed to left and right sides of the first rotor to prevent the first vanes from moving in a direction perpendicular to the sliding movement direction;

A second stopper to which the vane grooves to which the second vanes are coupled are radially formed, respectively, and fixed to left and right sides of the second rotor to prevent the second vanes from moving in a direction perpendicular to the sliding movement direction; And

It is provided on the left and right sides of the operating chamber of the pump housing, and provided with end plates rotatably supporting the first and second rotors,

30. The method of claim 29, wherein the notch portion for forming a cutting surface by making an inclination angle with respect to the rotation direction of the first and second rotors, respectively, at the front end portions of the first and second vanes;

The method of claim 29 or 30, wherein the first and second vanes,

31. The method of claim 30, wherein the cutouts of the first and second vanes,

31. The method of claim 29 or 30, wherein the inner surface of the operating chamber of the pump housing on the side where the first and second rotors are inscribed, the circle of the left and right symmetry relative to the center of rotation of the first and second rotors. Formed a circle,

35. The method of claim 33, wherein the distance passing through the center of rotation of the first and second rotors and connecting both ends of the circular portion, and through the center of rotation of the first and second rotors, the top dead center and the elliptic portion A double elliptic vane bump, characterized in that the distance value connecting the bottom dead center is formed in the same size.

31. The method according to claim 29 or 30, wherein the vanes are formed in the vane grooves of the first and second rotors, respectively, and the first and second vanes slide along the vane grooves due to the rotation of the first and second rotors. And a locking jaw for limiting the movement amount of the first and second vanes within a predetermined range.

A second rotor rotatably installed in a forward or reverse direction in an eccentric state on an upper side of the second operating chamber of the pump housing, and having a vane groove formed in a straight shape, and interlocked with the first rotor to rotate in an opposite direction;

Slidingly coupled to the vane groove of the second rotor, the front end is in close contact with the inner surface of the second operating chamber by the centrifugal force of the second rotor is in sliding contact, perpendicular to the rotation angle of the first vane A second vane disposed to rotate;

37. The method of claim 36, wherein a cutout portion for forming a cutting surface by making an inclination angle with respect to the rotational direction of the first and second rotors, respectively, at the front end portions of the first and second vanes;

The method of claim 36 or 37, wherein the first and second vanes,

38. The method of claim 37, wherein the cutouts of the first and second vanes,

The inner surface of the 1st, 2nd operation chamber of the said pump housing of the side in which the said 1st, 2nd rotor is inscribed left and right based on the rotation center point of the said 1st, 2nd rotor. Symmetrically rounded to form a rounded part,

41. The method according to claim 40, wherein a distance value passing through the center of rotation of the first and second rotors and connecting both ends of the circular part and a center of rotation of the first and second rotors and passing through the center of rotation of the first and second rotors are formed. A double elliptic vane bump, characterized in that the distance value connecting the bottom dead center is formed in the same size.

38. The method of claim 36 or 37, wherein when the first and second vanes are respectively formed in the vane grooves of the first and second rotors, and the first and second vanes slide along the vane grooves due to the rotation of the first and second rotors. Double elliptical vane pump, characterized in that it comprises a locking step for limiting the movement amount of the first and second vanes within a predetermined range.