KR101804764B1 - Multidirection multivalve for automotive - Google Patents

Abstract

The present invention relates to a multi-valve for a vehicle, and more particularly, to a multi-valve type vehicle comprising a valve housing having a space having a length therein and filled with a fluid and having a plurality of ports communicating with fluid communication therethrough, A hollow valve member provided with an orifice corresponding to the port of the valve housing for opening and closing the port while communicating the orifice and the port by rotation, and an actuator for providing a driving force to the valve member to rotate the valve member, The housing has a first port portion formed on one side of the first port portion and a second port portion formed on one side of the first port portion, and another port formed on both sides of the second port portion spaced apart from the first port portion, And a port that is in line with any one of the ports of the second port portion And a port cover which is attached to the housing body and communicates with the port of the third port portion and the port of the second port portion which form one row, , The valve member has a first orifice for opening and closing the ports of the first port portion, a second orifice for opening and closing the ports of the second port portion, and a third orifice for opening and closing the port of the third port portion Is provided.

Description

[0001] MULTIDIRECTION MULTIVALVE FOR AUTOMOTIVE [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-valve for a vehicle, and more particularly to a multi-valve for a vehicle capable of controlling fluid communication in many directions.

Generally, the vehicle is equipped with various kinds of valve devices. Such a valve device is configured to be able to distribute, control, and control flow for various kinds of fluid depending on applications such as cooling of the engine, cooling and heating of the indoor space, exhaust gas recirculation (EGR system)

Among these various types of valve devices, a rotary valve includes a valve body having two or more ports, and a valve member rotatable about a rotation axis within the valve body to selectively open and close two or more ports . Such a rotary valve is mainly used for the cooling water circulation circuit of the internal combustion engine.

An example of such a rotary valve is disclosed in US 6315267 B1 (hereinafter referred to as Patent Document 1). The rotary valve according to the related art includes a valve body having an inlet port and an outlet port communicating with a valve chamber; A valve member rotatably installed in the valve chamber between an open position and a closed position; A curved resilient seal member interposed between any one of the inlet port and the outlet port and the valve member; A torque motor attached to the valve body to rotate the valve member; And spring means for elastically biasing the rotor and the valve member of the torque motor to open.

In this conventional rotary valve, the inlet and outlet ports of the valve body are provided on both sides of one end of the valve body to form one row, and the other inlet and outlet ports are provided on both sides of the other end of the valve body. The valve member is formed in a cylindrical shape and has a pair of orifices corresponding to the inflow and outflow ports provided at both ends of one end of the valve body. The inflow and outflow ports are formed on both sides of the valve body, And a corresponding pair of further orifices are formed on the other side respectively. That is, the valve member has a pair of orifices constituted by a plurality of stages. Therefore, the inlet and outlet ports on both sides are opened and closed by the rotation of the valve member, and the inlet and outlet ports on the opposite sides of the other end are opened and closed.

However, this prior art technique has the disadvantage that the size (diameter and height) of the valve body and the size of the orifice are correspondingly sized so that a suitable amount of fluid (e.g., cooling water) is supplied to each inlet or outlet port, There is a problem that not only the space is excessively consumed but also the weight of the vehicle is ultimately increased.

US 6315267 B1 (Nov. 13, 2001)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a multi-way multi-valve system for a vehicle that can reduce the size of a valve member and communicate a desired flow rate.

According to an aspect of the present invention, there is provided a valve device comprising: a valve housing having a space having a length therein and filled with a fluid and formed with a plurality of ports, through which ports are communicated, A hollow valve member provided in the valve housing for opening or closing the port while communicating the orifice and the port by rotation and provided with an orifice corresponding to the port of the valve housing, Wherein the valve housing includes a first port portion having the ports formed on both sides of one end thereof and forming one row and another port formed on both sides of the other end portion spaced apart from the first port portion, Of the second port portion and the second port portion forming the row of the second port portion A housing body having a third port portion made of a primary port and a port connected to the port of the second port portion, which is attached to the housing body and forms one row, Wherein the valve member includes a first orifice for opening and closing the ports of the first port portion, a second orifice for opening and closing the ports of the second port portion, and a third orifice for opening and closing the third port portion, And an orifice.

Here, the valve housing may include first, second, and third port portions formed at different positions of the housing body to form first to third ends, 1 to 3 orifices are formed so as to correspond to the first end to the third end of the first port portion to the third port portion, respectively.

The valve member may be configured such that the first orifice is composed of one side orifice corresponding to one of the ports constituting the first port portion and the other side orifice corresponding to the remaining port constituting the first port portion Do.

It is preferable that the valve member has a cross sectional area of the one side orifice different from that of the other side orifice.

In addition, it is preferable that the valve member has a cross sectional area of the one side orifice extending from one end to the other end.

The housing body is formed of the port and forms a row with the port of the third port portion and a fourth port portion communicating with the port of the third port portion and the port of the second port portion by the port cover Wherein the valve housing has a first port portion, a second port portion, a third port portion, and a fourth port portion formed at different positions of the housing body to form first to fourth ends, And the valve member further includes a fourth orifice corresponding to the fourth port portion, wherein the first to fourth orifices are disposed in the first to fourth ports of the first port portion to the fourth port portion, As shown in FIG.

Preferably, the actuator includes a shaft connected to the valve member and a driving motor for driving the shaft.

Preferably, the valve member is axially coupled with the shaft drawn out from the actuator and is rotatably and separately formed as a single body.

It is also preferable that the split and formed valve members are formed with binding projections and binding holes formed on faces facing each other.

Preferably, each of the ports formed in the valve housing corresponding to the orifice formed in the valve member is provided with sealing means.

At this time, the sealing means is provided with a sealing member which is tightly installed on the inner surface of the port, and a stretchable space which is provided on one end of the sealing member and which forms the other side, And an elastic element elastically deforming according to the elasticity of the sealing member to apply an elastic force in the axial direction of the sealing member to bring the other end of the sealing member into close contact with the outer surface of the valve member, And a hollow tube having the same shape as the sealing member and provided with at least one notch for providing a stretch and shrink space, and the notch is formed by cutting a part of the hollow tube to form a hole in the hollow tube It is desirable to provide a stretchable space which is made up.

Further, the sealing means may include a sealing member that is hermetically installed on the inner surface of the port, and an elastic member that is provided at one end of the sealing member and applies an elastic force to the sealing member in the axial direction, thereby sealing the other end of the sealing member to the outside Wherein the elastic member has a ring body having an opening communicating with the port at a center thereof and a plurality of biasing portions protruding in an oblique direction with respect to a plane of the ring body, Wherein the ring body has a plurality of fitting protrusions formed on an outer periphery of the ring body, and the plurality of fitting protrusions protrude in a direction opposite to the biasing portion Wherein a plurality of fitting grooves are formed at one end of the sealing member, It is preferable to fit them individually in the fitting grooves.

An annular groove is formed in an outer surface of the sealing member, and an annular lip seal is provided in the annular groove. The lip seal has an annular fitting body to be closely fitted to the inner surface of the annular groove, And a lip portion elastically deformably extended from the fitting body in an outer diameter direction, wherein the lip portion is in intimate contact with the inner surface of the port.

Further, the sealing means may include a sealing member that is hermetically installed on the inner surface of the port, and an elastic member that is provided at one end of the sealing member and applies an elastic force to the sealing member in an axial direction, thereby sealing the other end of the sealing member to the outside Wherein an annular lip seal is interposed between one end of the sealing member and the elastic member, and the annular lip seal is held by a retainer The retainer preferably has a cylindrical portion fitted to the inner surface of the sealing member and a supporting surface provided at one end of the cylindrical portion so as to extend in the circumferential direction.

According to the vehicle multi-valve of the present invention, since the first to third ports and the first orifice to the third orifice and / or the fourth port or the fourth orifice are provided, the entirety of the valve The flow rate can be communicated in a desired amount while the size can be reduced as compared with the prior art.

Further, according to the present invention, when the total size of the multi-valve is reduced and the flow rate is easily adjusted, the space occupied by the valve in the engine room can be reduced, thereby increasing the space utilization of the engine room.

However, according to the present invention, a multi-valve having a compact size can control a flow rate suited to a model of a vehicle, so that a multi-valve So that the manufacturing time of the vehicle can be shortened and the manufacturing cost can be reduced.

1 is a perspective view showing an assembled multi-valve according to the present invention.
2 is an exploded perspective view showing a multi-valve for a vehicle according to the present invention.
3 is a perspective view showing a valve member of a multi-valve system for a vehicle according to the present invention.
4 and 5 are sectional views showing an operating state of a multi-valve for a vehicle according to the present invention.
6 is a perspective view of an assembled multi-valve according to another embodiment of the present invention.
7 is an exploded perspective view showing another embodiment of a multi-valve system for a vehicle according to the present invention.
8 is an exploded perspective view showing a sealing means in a vehicle multi-valve according to the present invention.
Fig. 9 is an assembled cross-sectional view of Fig. 8. Fig.
10 is an exploded perspective view showing another embodiment of the sealing means in the vehicle multi-valve according to the present invention.
11 is an exploded perspective view showing still another embodiment of the sealing means in the vehicle multi-valve according to the present invention.
12 is an assembled sectional view of Fig.
13 is a view showing another embodiment of a valve member of a multi-valve system for a vehicle according to the present invention.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary meanings and the inventor may properly define the concept of the term to describe its invention in the best possible way And should be construed in accordance with the principles and meanings and concepts consistent with the technical idea of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a combined multi-valve according to the present invention, and FIG. 2 is an exploded perspective view showing a multi-valve for a vehicle according to the present invention.

Referring to the drawings, the vehicle multi-valve according to the present invention includes a valve housing 100 in which a plurality of fluids are filled and ports through which fluid is communicated, an orifice corresponding to the ports formed in the valve housing is provided A valve member 200 rotatably installed in the valve housing 100, and an actuator 300 for providing a driving force to the valve member 200 to rotate the valve member 200.

1 and 2, the valve housing 100 is provided with a space having a length therein to fill the fluid, and a plurality of ports are formed through which the fluid is communicated. The valve housing 100 may include a housing body 110 and a port cover 120, for example, as shown in FIG.

As shown in FIG. 2, the housing body 110 includes a first port portion 111 and a second port portion 111. The first port portion 111 and the second port portion 111 are formed on both sides of one end of the housing body 110, And a third port portion 113 made up of a port that is in line with any one of the ports of the second port portion 112 and the second port portion 112, .

The first port portion 111, the second port portion 112, and the third port portion 113 are formed at different positions of the housing body 110 as shown in the drawing to form the first to third ends do. At this time, it is preferable that the third port portion 113 is positioned between the first port portion 111 and the second port portion 112 as shown in FIGS.

The port cover 120 is formed in a cap shape as shown in FIG. 2, and has a discharge port 121 for discharging the fluid inside. At this time, the discharge port 121 may be configured as a nipple as shown in FIG.

2, the port cover 120 is attached to the housing body 110 to communicate the port of the third port portion 113 and the port of the second port portion 112, And the like. That is, the port cover 120 discharges the fluid flowing out from the port of the second port portion 112 and the port of the third port portion to the discharge port 121 or discharges the fluid flowing through the discharge port 121 to the second port portion To the port of the first port 112 and the port of the third port 113. [

Meanwhile, the valve member 200 is formed in a hollow shape and is rotatably installed in the valve housing 100. Such a valve member will be described with reference to Fig.

3 is a perspective view showing a valve member of a multi-valve system for a vehicle according to the present invention.

3, the valve member 200 is provided with an orifice corresponding to the port of the valve housing 100, and opens and closes the port while communicating the orifice and the port by rotation. That is, the valve member 200 includes a first orifice 210 for opening and closing the ports of the first port portion 111, a second orifice 220 for opening and closing the ports of the second port portion 112, And a third orifice 230 for opening and closing the port of the first orifice 113 is provided.

The valve member 200 may be configured such that the first orifice 210 to the third orifice 230 are connected to the first port portion 111 to the third port portion 113 of the valve housing 100, Respectively, of the first to third stages. That is, the valve member 200 is composed of the first to third stages, and the valve member 200 is formed in an upright convex shape continuously connected with the spherical shape as shown in FIG. 3 so as to be smoothly rotated Can be divided.

3, the first orifice 210 may include a first orifice 211 corresponding to one of the ports constituting the first port 111, And the other side orifice 212 corresponding to the remaining port constituting the first port portion 111.

That is, the first orifice 210 is composed of a plurality of orifices 210. Since the one orifice 211 and the other orifice 212 constitute one row of the first orifice 210, And constitute one stage. In the description, the first orifice 210 may be the third stage located at the uppermost end of the valve member 200 as shown in Fig.

Here, one side orifice 211 and the other side orifice 212 forming the first orifice may be configured to have different sectional areas as shown in Fig. Accordingly, the one-side orifice 211 and the other-side orifice 212 communicate different flow rates.

In addition, the one orifice 211 and / or the other orifice 212 may be formed so that the cross-sectional area of the one orifice 211 and the other orifice 212 may expand from one end to the other end. The one side orifice 211 or the other side orifice 212 may be formed in one side in a slit shape and the other side may be formed in a square or circular hole shape. Therefore, the valve member 200 can easily adjust the amount of the flow amount communicated in accordance with the amount of rotation.

Meanwhile, the actuator 300 provides a driving force to the valve member 200 to rotate the valve member 200. Therefore, the valve member 200 can control the flow rate communicated to the above-described port.

The actuator 300 may include a shaft 310 connected to the valve member 200 and a driving motor 320 for driving the shaft 310. The shaft 310 is fixed to the valve member 200 at one end as shown in Fig.

The shaft 310 is preferably formed at one end thereof with a rotation-preventing end face 313 such as a polygonal shape and is inserted through one end of the valve member 200 with both ends thereof opened and fixed inside the valve member 200. At this time, the shaft 310 is located on the same line as the axis of the valve member 200. The driving motor 320 is connected to the other end of the shaft 310 to rotate the shaft 310 as shown in FIG.

The operation of the vehicle multi-valve according to the present invention having the above-described configuration will be described with reference to Figs. 4 and 5. Fig.

4 and 5 are sectional views showing an operating state of a multi-valve for a vehicle according to the present invention.

The multi valve for a vehicle according to the present invention is characterized in that one side orifice 211 and the other side orifice 212 constituting the first end of the valve member 200 by the rotation of the valve member 200 are provided in the valve housing 200, Corresponds to a pair of ports constituting the first port portion 111 of the main body 100.

For example, the valve member 200 may be configured such that one side orifice 211 communicates with one of the ports constituting the first port portion 111 and communicates fluid, or the other side orifice 212 communicates with the first port portion 111 111 and the other one of the ports.

At this time, the valve member 200 can open / close at least one of the ports of the second port portion 112 while the second orifice 220 corresponds to the second port portion 112 of the valve housing 100 . The valve member 200 can be communicated with or prevented from communicating with the port constituting the third port portion 113 of the valve housing 100 by the third orifice 230.

The second orifice 220 and the third orifice 230 may correspond to the port of the second port portion 112 and the port of the third port portion 113 at the same time when the valve member 200 rotates. At this time, the port of the second port portion 112 and the port of the third port portion 113 are communicated by the port cover 120.

Therefore, the fluid is communicated through the discharge port 121 of the port cover 120. The valve member 200 is simultaneously communicated with the port of the second port portion 112 and the port of the third port portion 113 by the port cover 120 so that the fluid can be communicated at a desired sufficient flow rate. Particularly, the valve member 200 can communicate a fluid having a sufficient flow rate in accordance with the pressure of the fluid flowing into the valve housing 100.

The vehicle multi-valve according to the embodiment of the present invention configured as described above has the second port portion 112 and the third port portion 113 which are communicated with the housing body 110 through the port cover 120, The port cover 120 collects the fluid communicated at the second port portion 112 and the third port portion 113 and discharges the fluid to the discharge port 121 or discharges the fluid at the discharge port to the second port portion 112 and the third port portion 113. [ The diameter of the second port portion 112 and the diameter of the third port portion 113 can be reduced so that the size (volume and length) of the housing body 110 can be reduced Thus, the overall size of the valve housing 100 can be reduced to provide a valve of compact size.

The housing body 110 forms a row with the port of the third port section 113 and is connected to the port of the third port section 113 and the port of the second port section 112 by the port cover 120 described above. And a fourth port portion 114 communicating with the second port portion 114. This will be described with reference to FIGS. 6 and 7. FIG.

FIG. 6 is a perspective view of an assembled multi-valve according to another embodiment of the present invention, and FIG. 7 is an exploded perspective view showing another embodiment of a multi-valve for a vehicle according to the present invention.

6 and 7, the valve housing 100 includes the first port portion 111, the second port portion 112, the third port portion 113, And the fourth port portion 114 are formed at different positions of the housing body to form the first to fourth ends. As shown in FIG. 6, the fourth body portion 110 forms a fourth end portion of the fourth port portion 114.

7, when the fourth port portion 114 is formed in the housing body 110 to form the fourth end, the valve member 200 may be formed as a portion corresponding to the fourth port portion 114, 4 orifices 240 are provided. That is, the valve member 200 may be formed in the first to fourth port portions 111 to 114 of the first orifice 210 to the fourth orifice 240 formed in the housing body 110, Four stages.

The first orifice 210 to the third orifice 230 operate in the same manner as described above and the fourth orifice 240 is also connected to the housing body 110 according to the rotation of the valve member 200. [ The fourth port portion 114 provided in the first port portion 114 can be communicated or prevented from being communicated.

Particularly, since the fourth port portion 114 forms the same row as the second port portion 112 and the third port portion 113 as shown in FIGS. 6 and 7, The second port portion 112 to the fourth port portion 114 communicate with or prevent the second orifice 220 to the fourth orifice 240.

Accordingly, the port cover 120 collects the fluid communicated from the second port portion 112 to the fourth port portion 114 and discharges the fluid flowing into the discharge port 121 through the discharge port 121, To the second orifice 220 to the fourth orifice 240 through the second port portion 112 to the fourth port portion 114.

When the fourth port portion 114 and the fourth orifice 240 are provided in the housing body 110 and the valve member 200 as described above, a desired amount of fluid can be discharged to the discharge port 121 of the port cover 120 The amount of fluid that can be supplied or supplied can be increased. In the case where the fourth port portion 114 and the fourth orifice 240 are formed in the housing body 110 and the valve member 200 as described above to form the fourth end, The length can be slightly increased compared to the body 110 and the valve member 200.

However, when the fourth port portion 114 and the fourth orifice 240 are formed in the housing body 110 and the valve member 200 as described above, the fourth port portion 114 and the fourth orifice 240 The diameter of the ports of the second port portion 112 and the third port portion 113 and the corresponding orifices thereof can be reduced, The overall size of the valve can be reduced as compared with the conventional one.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. .

For example, the sealing means 400 may be provided at each of the ports of the valve housing 100 corresponding to the orifices of the valve member 200, thereby enhancing the sealing performance of the port, thereby preventing leakage of the fluid. This will be described with reference to FIGS. 8 and 9. FIG.

FIG. 8 is an exploded perspective view showing a sealing means in a vehicle multi-valve according to the present invention, and FIG. 9 is an assembled cross-sectional view of FIG.

2 or 7, the sealing means 400 may be formed in the port of the first port portion 111 to the third port portion 113 provided in the housing body 110, And are respectively installed in the ports of the first port section 111 to the fourth port section 114.

The sealing means 400 includes a sealing member 410 which is hermetically installed on the inner surface of the port and one or more elastic elements provided on the same end of the sealing member 410. That is, the sealing means 400 consists of only one monolith. Therefore, the sealing means 400 is easy to manufacture and install since the parts are simple.

The sealing member 410 has a cylindrical structure with a hollow formed therein for fluid to flow therethrough and an outer surface corresponding to the inner surface of the port. The outer surface of the sealing member 410 may be hermetically attached to the inner surface of the port formed in the housing body.

The sealing member 410 may be made of a material having a low coefficient of friction and good chemical resistance, such as, for example, polytetrafluoroethylene (PTFE). Since the sealing member 410 is made of a material having a low coefficient of friction, the dynamic friction load is reduced during the rotational contact (dynamic load) in close contact with the outer surface of the valve member 200, and the wear is greatly reduced.

In addition, the sealing member 410 has at one end thereof at least one elastic element formed in the same body, and a sealing surface 413 which hermetically contacts the outer surface of the valve member 200.

The elastic element may be formed integrally with one end or the middle of the sealing member 410 and may be formed of the same material as the sealing member 410. [ The elastic element is elastically deformable as will be described later, so that an elastic force is applied to the sealing member 410 in the axial direction.

Therefore, the sealing state of the sealing member 410 can be stably maintained as the sealing surface 413 is brought into close contact with the outer surface of the valve member 200. [ When the sealing means 400 is installed in the port, the sealing surface 413 of the sealing member 410 provided at one side is in close contact with the valve member 200.

The sealing member 400 is elastically deformed while the other elastic element forming the same body as the sealing member 410 is compressed during installation so that the one sealing member 31 is elastically supported by the elastic force generated from the other elastic element .

On the other hand, the above-mentioned elastic element is provided with a stretchable space which allows the stretching and shrinking substantially so that the elastic force can be secured while expanding and contracting. Therefore, the elastic element can be expanded and contracted through the expansion and contraction space, and the elastic element can be elastically deformed to secure the elastic force.

Such an elastic element may include at least one notch 412 extending from one end of the sealing member 410, for example, as shown in FIGS. 8 and 9, to form an identical body with the sealing member 410, And a hollow tube 411 formed therein.

The hollow tube 411 may be formed to have a thickness smaller than that of the sealing member 410 for smooth elastic deformation. Alternatively, the hollow tube 411 may have the same thickness as the sealing member 410.

8 and 9, a portion of the hollow tube 411 is cut into a notch 412. As shown in FIG. Thus, the notch 412 provides a hollow space made of holes to the hollow tube 411.

When the port fitting 115 is coupled to the port of the housing body 110, the end of the hollow tube 411 is pressed by the end of the port fitting 115, as shown in FIG. At this time, the hollow tube 411 is elastically deformed while being expanded and contracted by a notch 412 providing a stretching space. The hollow tube 411 provides an elastic force to the sealing member 410 to closely contact the sealing surface 413 of the sealing member 410 to the outer surface of the valve member 200 to improve the sealing property of the port, Leakage can be blocked.

In addition, the sealing means provided at the ports provided in the valve housing may include elastic elements as described above, but may include elastic members made of different materials different from the sealing members, . This will be described with reference to FIG.

10 is an exploded perspective view showing another embodiment of the sealing means in the vehicle multi-valve according to the present invention.

The sealing means includes a sealing member 410 hermetically installed on the inner surface of a port formed in the housing body and at least one elastic member 420 provided at one end of the sealing member 410.

The sealing member 410 is made of a cylindrical structure having a hollow formed therein for fluid to flow therethrough and an outer surface corresponding to the inner surface of the port. The outer surface of the sealing member 410 can be hermetically sealed to the inner surface of the port. Further, the sealing member 410 is provided with an elastic member 420 at one end thereof. A sealing surface 413 is formed at the other end of the sealing member 410 to make airtight contact with the outer surface of the valve member 200.

The elastic member 420 is installed at one end of the sealing member 410 to apply an elastic force to the sealing member 410 along its axial direction so that the sealing surface 413 of the sealing member 410 contacts the outer surface of the valve member 200 As shown in Fig. The sealing member 410 is biased toward the outer surface of the valve member 200 by the elastic force of the elastic member 420 so that the sealing surface 413 of the sealing member 410 is pressed against the outer surface of the valve member 200 Can be stably maintained.

In particular, the elastic member 420 has a ring body 421 formed with an opening communicating with the port at the central portion thereof, and a plurality of biasing portions protruding outward from the ring body 421.

The ring body 421 is formed in an annular plate spring structure and has an opening communicating with the port at its center portion. The ring body 421 is made of an elastic material having a predetermined elastic modulus such as SUS have.

The biasing portion 422 protrudes outward from the ring body 421 in an oblique direction and the plurality of biasing portions 422 are disposed apart from each other in the circumferential direction of the ring body 421. The sealing member 410 can be pressed against the valve member 200 with a strong elastic force by the biasing member 422 protruding in the inclined direction from the ring body 421, There is an advantage that the sealing properties in the circumferential direction and / or the radial direction can be secured.

The biasing portion 422 is formed by lancing on the inner circumferential surface of the ring body 421. Specifically, a part of the inner circumferential surface of the ring body 421 is formed by lancing, that is, by shearing and bending, and the like so as to protrude in the oblique direction with respect to the plane of the ring body 421, do.

10, the biasing portion 422 protruding in the oblique direction with respect to the plane of the ring body 421 has a connecting portion 422a integrally connected to the inner circumferential edge of the ring body 421 at one end thereof And a support portion 422b bent at an opposite angle to the other end is formed.

The support portion 422b of the biasing portion 422 is held in contact with the end portion of the port fitting when the port fitting is engaged with the port of the housing body.

10, the supporting member 422b of the biasing member 422, which is protruded in the oblique direction, is supported by the port fitting 115, Since the sealing member 410 can be pressed with a higher elastic force toward the valve member 20, a very strong sealing property between the sealing member 410 and the valve member 200 can be more assured.

The ring body 421 has a plurality of fitting protrusions 421a formed on the outer periphery thereof and the plurality of fitting protrusions 421a protrude in the direction opposite to the biasing portion 422. [ A plurality of fitting grooves 420a are formed at one end of the sealing member 410 and the fitting protrusions 421a of the ring body 421 are individually fitted into the fitting groove 420a of the sealing member 410 .

The elastic member 420 is integrally coupled to one end of the sealing member 410 through the fitting protrusion 421a and the fitting groove 420a so that the gap between the elastic member 420 and the sealing member 410 So that the elastic member 420 can more reliably perform the elastic pressing with respect to the sealing member 410.

An annular groove 423 is formed on the outer surface of the sealing member 410 and an annular lip seal 430 is provided on the annular groove 423 to seal the outer surface of the sealing member 410 and the inner surface of the port. The sealability in the circumferential direction and / or the radial direction can be reliably ensured.

The lip seal 430 has an annular fitting body 431 that is closely fitted to the inner surface of the annular groove 423 and a lip portion 431a that is elastically deformable outwardly from the fitting body 431 ). At this time, the lip seal 430 is made of a material such as EPDM (ethylene propylene diene monomer) which is elastically deformable to secure a more hermetic sealing property.

When the fitting body 431 is fitted in the annular groove 423 by the configuration of the lip seal 430, the lip portion 431a is elastically deformed so that the end portion thereof can hermetically contact the inner surface of the port .

10, one or more deforming protrusions 431b elastically deformable are formed on the inner surface of the fitting body 431 in the annular shape along the circumferential direction, and the deforming protrusions 431b are inserted into the fitting body 431 431 are elastically deformed when they are fitted into the annular groove 423 so that the fitting body 431 can be resiliently pushed outwardly of the annular groove 423 so that the end of the lip portion 431a is in contact with the inner surface So that it is possible to make a more airtight contact.

The elastic member 420 includes a plurality of crests and valleys continuously formed along the circumferential direction to press one end of the sealing member 410 in the axial direction to seal the sealing surface 413 of the sealing member 410, Tightly contacts the outer surface of the valve member (200). This will be described with reference to FIGS. 11 and 12. FIG.

Fig. 11 is an exploded perspective view showing still another embodiment of the sealing means in the vehicle multi-valve according to the present invention, and Fig. 12 is an assembled cross-sectional view of Fig.

An annular lip seal 430 is interposed between the elastic member 420 and the sealing member 410 and the annular lip seal 430 is sealed by a retainer 440. [ And is supported on one end of the member 410.

The retainer 440 has a cylindrical portion 441 which is hermetically fitted to the inner surface of the sealing member 410 and a supporting surface 442 provided to extend in the circumferential direction at one end of the cylindrical portion 441. When the cylindrical portion 441 of the retainer 440 is fitted to the inner surface of the sealing member 410, one end of the supporting surface 442 and the sealing member 410 are spaced apart from each other, An annular groove portion to be fitted into the groove can be formed in the circumferential direction.

The lip seal 430 is fitted between the support surface 442 of the retainer 440 and one end of the sealing member 410 and the elastic member 420 is fixed to the lip seal 430 and the retainer The lip portion 431a of the lip seal 430 can be brought into a more airtight contact with the inner surface of the port provided in the housing body by applying an elastic force to the support surface 442 of the lip seal 430, And the sealing properties in the circumferential direction and / or the radial direction between the inner surface of the port and the inner surface of the port can be greatly improved.

On the other hand, the valve member 200 having a plurality of opaleses formed therein and formed in a multi-stage may be formed as a single body, but may be formed in some cases. This will be described with reference to FIGS. 7 and 13. FIG.

13 is a view showing another embodiment of a valve member of a multi-valve system for a vehicle according to the present invention.

Referring to the drawings, the valve member 200 according to another embodiment may be divided into two or more than two, and may be integrally formed in an axial direction. Such a valve member 200 may be constituted by a first valve member and a second valve member, for example, as shown in Figs. 7 and 13.

The first valve member 200a and the second valve member 200b are axially coupled to the shaft 310 drawn out from the actuator 300 and are rotatably and separately formed in a single body.

The first valve member 200a and the second valve member 200b may include a first valve member 200a and a second valve member 200b at one end of a shaft 310 having a rotation- And is rotated in the same manner as the shaft 310 by being fixed.

The first valve member 200a and the second valve member 200b face each other for firm coupling between the first valve member 200a and the second valve member 200b. Holes 202 are provided and bound together. At this time, a plurality of the coupling protrusions 201 and the coupling holes 202 are disposed around the shaft 310.

Since the divided valve member 200 is formed and joined after each component is formed, the valve member 200 having excellent operability and corresponding to the ports provided in the housing body 110, It is easy to control the flow rate of the fluid.

In some cases, the port of the third port portion 113 and the port of the second port portion 112 and / or the port of the fourth port portion 114 and the second port portion 112 are communicated with each other, The flow rate of the fluid supplied to or discharged from the multi-valve may be easily adjusted by adjusting the cross-sectional area of the flow path of the port cover 120 in which the flow path is formed.

The flow rate control by the port cover 120 can be performed by providing a plurality of port covers 120 having different flow cross-sectional areas according to the model of the vehicle, for example, The flow rate can be easily adjusted.

100: valve housing 110: housing body
111: first port portion 112: second port portion
113: third port portion 114: fourth port portion
115: Port fitting 120: Port cover
121: exhaust port 200: valve member
200a: first valve member 200b: second valve member
201: coupling projections 202: coupling holes
210: first orifice 211: one side orifice
212: the other side orifice 220: the second orifice
230: third orifice 240: fourth orifice
300: Actuator 310: Shaft
320: drive motor 400: sealing means
410: sealing member 411: hollow tube
412: notch 413: sealing surface
420: elastic member 420a: fitting groove
421: Ring body 421a:
422: biasing section 422a:
422b: support portion 423: annular groove
430: Lip seal 431: Fitting body
431a: Lip part 431b:
440: retainer 441: cylindrical portion
442: Support surface

Claims (8)

A valve housing having a space having a length therein and filled with a fluid, the valve housing having a plurality of ports, through which ports are communicated;
A hollow valve member rotatably installed in the valve housing and provided with an orifice corresponding to the port of the valve housing to open and close the port while communicating the orifice and the port by rotation; And
And an actuator for applying a driving force to the valve member to rotate the valve member,
Wherein the valve housing comprises:
Wherein the first port portion and the second port portion are formed at both ends of the first port portion and the second port portion, And a third port portion comprising the port in series with any one of the ports of the second port portion; And
And a port cover attached to the housing body to communicate the port of the third port portion and the port of the second port portion, which form one row, to provide a fluid communication passage,
Wherein the valve member comprises:
A first orifice for opening and closing the ports of the first port portion, a second orifice for opening and closing the ports of the second port portion, and a third orifice for opening and closing the port of the third port portion,
The port cover
The first port and the third port being in the form of a cap having a merging space for merging the fluids communicating respectively with the port of the second port and the port of the third port,
The fluid is discharged from the port of the second port portion and the port of the third port portion to the outside of the port cover or the fluid flowing from the outside of the port cover is discharged to the second port And a discharge port for supplying the fluid to the ports of the first port and the third port.
The method according to claim 1,
The valve housing
Wherein the first port portion, the second port portion, and the third port portion are formed at different positions of the housing body to form first to third ends,
Wherein the valve member comprises:
Wherein the first through third orifices are formed to correspond to the first end to the third end of the first port portion and the third port portion, respectively.
The method of claim 2,
Wherein the valve member comprises:
Wherein the first orifice comprises one side orifice corresponding to one of the ports constituting the first port portion and the other side orifice corresponding to the remaining port constituting the first port portion.
The method of claim 3,
The valve member
And the cross-sectional areas of the one side orifice and the other side orifice are different from each other.
The method of claim 3,
Wherein the valve member comprises:
And the cross-sectional area of the one side orifice extends from one end to the other end.
The method of claim 2,
The housing body
Further comprising a fourth port portion constituted by the port and forming a row with the port of the third port portion and communicating with the port of the third port portion and the port of the second port portion by the port cover,
Wherein the valve housing comprises:
Wherein the first port portion, the second port portion, the third port portion, and the fourth port portion are formed at different positions of the housing body to form first to fourth ends,
Wherein the valve member comprises:
And a fourth orifice corresponding to the fourth port portion, wherein the first to fourth orifices are formed to correspond to the first to fourth ports of the first port portion to the fourth port portion respectively Wherein the valve body is a valve body.
The method according to claim 1,
The actuator
A shaft connected to the valve member; And
And a drive motor for driving the shaft.
The method according to claim 1,
The valve member
And a shaft that is withdrawn from the actuator is axially engaged with the shaft so as to be rotatably and separately formed as a single body.

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