CN209557095U - Valve head assembly, valve, turbocharged engine and vehicle - Google Patents

Abstract

The utility model relates to a kind of valve head assembly, valve, turbocharged engine and vehicles.The valve head assembly is suitable for matching opening and closing to realize valve with valve seat, and the valve head assembly includes valve head main body and elastomeric overmold part, and the valve head main body includes valve head bottom and the cylindrical portion that extends from the valve head bottom far from the valve seat；The elastomeric overmold part includes side covering portion and protruding portion, and the side covering portion at least partly coats the inner surface of the cylindrical portion；The protruding portion extends from the side covering portion and extends beyond the cylindrical portion in one end far from the valve seat.Due to being provided with the protruding portion, during valve head assembly moves upwards, protruding portion is in contact collision with the intracorporal structure of shell such as ring flange, a part due to protruding portion as the elastomeric overmold part of rubber material, buffer function can be played to the collision, and it can be avoided the valve head main body and the collision of ring flange of metal, reduce noise and reduce and impacted caused by valve member.

Description

Valve head assembly, valve, turbocharged engine and vehicle

Technical field

The utility model relates to a kind of valve head assembly and including the valve of the valve head assembly, particularly, it is related to a kind of for vehicle Turbocharged engine in valve and valve head assembly and engine and vehicle including the valve.

Background technique

Turbocharging technology by increasingly extensive in the engine of vehicle, to improve efficiency.In turbocharged engine In machine, turbine in gas push turbocharger, the air compressor connecting with turbine compresses air inlet, compressed Compressed air reaches air throttle through intercooler, hence into burning in the cylinder of engine.In practical applications, it can press A compressed gas return line in parallel with air compressor is arranged in contracting air intercooler upstream, and flows back in the compressed gas Compressed gas by-passing valve is provided in pipeline, when compressed gas by-passing valve is not energized, compressed gas by-passing valve is closed, compression Gas backstreaming pipeline is in off state.When compressed gas by-passing valve is powered, compressed gas by-passing valve is opened and makes compressed air The inlet end of air compressor can be flowed back by compressed gas by-passing valve, the reflux of compressed gas can be prevented due to surge Shake caused by injury to turbo blade, while the reflux of compressed gas turbine can also be allowed to continue to rotate to reduce plus The lag of turbine when fast.

Compressed gas by-passing valve be powered when, for example, coil, armature actuating assembly start to act on, armature is in electromagnetic force Under the action of carry out far from valve seat movement, and then drive for example by guide rod connection valve head assembly together far from valve seat move It is dynamic, to open valve.

In valve head assembly far from valve seat and towards when valve housing movement, the generally direction of the valve head main body of metalwork One end of shell is in contact collision moving to the intracorporal structure of endpoint Shi Huiyu shell (such as ring flange), and collision generation is made an uproar Sound, and make other components of valve cause to impact, and then influence the sealing performance of valve after prolonged operation, or even lead Cause the failure of valve member.

In addition, avoiding gas from (especially valve head assembly between the component of valve to guarantee the sealing effect for gas Between shield of its periphery, between shield and shell) gap in leak it is most important, therefore, for seal means Improvement be also this field concern one of emphasis.

Therefore, the purpose of this utility model aims to solve the problem that at least one of the above-mentioned problems in the prior art and defect Aspect and other technical problems.

Utility model content

The utility model provides a kind of valve head assembly, the valve including the valve head assembly and the turbocharged engine including valve Machine and vehicle can reduce the running noise of valve, the sealing performance of valve are significantly increased.

The above-mentioned purpose of the utility model realizes that the valve head assembly is suitable by the valve head assembly with following technical characteristic In matching the opening and closing to realize valve with valve seat, the valve head assembly includes valve head main body and elastomeric overmold part, the valve head master Body includes valve head bottom and the cylindrical portion that extends from the valve head bottom far from the valve seat；The elastomeric overmold part includes side Covering portion and protruding portion, the side covering portion at least partly coat the inner surface of the cylindrical portion；The protruding portion is from institute Side covering portion is stated to extend and extend beyond the cylindrical portion in one end far from the valve seat.Due to being provided with the protruding portion, In During valve head assembly moves upwards, protruding portion is in contact collision with the intracorporal structure of shell such as ring flange, due to protruding portion As a part of rubber material elastomeric overmold part, buffer function can be played to the collision, and can be avoided the valve of metal The collision of head main body and ring flange reduces noise and reduces and impacts caused by valve member.

Advantageously, the valve head assembly further includes guide rod, and the guide rod is configured to connect the valve head main body In the valve, the elastomeric overmold part further includes guide rod spacer portion, be formed in the guide rod and the valve head bottom it Between.Valve head main body needs the rotation allowance of certain angle relative to guide rod, and relative motion between the two is also easy to produce Therefore raw noise belongs to the spacer portion of elastomeric overmold part by being arranged therebetween, the two is spaced apart, further disappear The noise generated in addition to the two extrusion and collision and abrasion.

Advantageously, the elastomeric overmold part further includes bottom covering portion, and the bottom covering portion includes being located at the valve head bottom With the outer cladding portion in the outside of the junction of the cylindrical portion, wherein the guide rod spacer portion is connected to the outer cladding portion. When compressed gas by-passing valve is closed, the outer cladding portion is pressed on the valve seat of client, due to the material in the outer cladding portion The for example, elastic material of vulcanized rubber, so having better seal effect.

Advantageously, the bottom covering portion further includes the limiting section for being formed in the radially inner side of the side covering portion, for pair Elastic bias component is limited, wherein the elastic bias component carries out the valve head assembly to be biased to realize the valve head Return of the component towards the valve seat.

Advantageously, the protruding portion radially-inwardly protrudes from the side covering portion, with increase the thickness of the protruding portion from And reinforce the protruding portion.

Advantageously, the protruding portion is formed as at least two, and is spaced apart on the circumferencial direction of the side covering portion.So And protruding portion can also be formed as the continuous piece of annular.

Another aspect according to the present utility model, provides a kind of valve, the valve include shell, above-mentioned valve head assembly and Actuating assembly, the valve head assembly is at least partially accommodated into the shell and can be mobile relative to the shell, described Actuating assembly is contained in the shell, to activate the movement of the valve head assembly.

Advantageously, the shell includes enclosure body, the annular ring flange and connection for being connected to the enclosure body To the shield of the ring flange, the shield is arranged around the outer peripheral surface of the valve head assembly, wherein the valve head assembly It can be mobile relative to the shield.

Advantageously, the ring flange include main part, the first flange extended radially inwardly from the main part and from The second flange that first flange axially extends towards the valve seat, second flange are radially positioned the protection Between cover and the cylindrical portion of the valve head main body；Wherein, the protruding portion is suitable for moving in the valve head assembly far from valve seat It is resisted against at stroke end on first flange.

Advantageously, the first sealing is provided between the shield and first flange and/or second flange Part.The setting of the sealing element is so that avoid compressed gas from leaking between the ring flange and the shield.

Advantageously, second seal is provided between second flange and the cylindrical portion of the valve head main body.This is close The setting of seal ensures the sealing between shield and valve head main body, prevents compressed gas via the leakage in gap between the two

Advantageously, the second seal is configured to the generally V-shaped sealing ring being open towards the direction of the shell.

Advantageously, the ring flange and the enclosure body are formed as one part.The design simplification of the integral piece forms work Skill.

Advantageously, the ring flange and the enclosure body are formed as individual component, and by way of coating and injection moulding It is connected.Make it possible to design for different customer requirements (such as the requirement in different installing port apertures) using which, Such as the mold of different ring flanges is only replaced, without newly opening the mold of integral molded plastic, shorten the R&D cycle.

Another aspect according to the present utility model provides a kind of turbocharged engine and vehicle comprising above-mentioned valve. Advantageously, compressed gas by-passing valve of the valve for the turbocharged engine of the vehicle.

In the valve head assembly of above-mentioned each embodiment according to the present utility model and the valve including the valve head assembly and In vehicle, due to the use of protruding portion, noise caused by reducing valve head assembly in the process of movement reduces for valve portion The impact of part, prolongs the service life.The setting of sealing element improves the sealing effect of valve, guarantees compressed air not from valve head main body It is leaked between shield, shield and ring flange.

Detailed description of the invention

With reference to following detailed description and accompanying drawings, the characteristics of the embodiments of the present invention and advantage will become aobvious and easy See, in which:

Fig. 1 shows the stereoscopic schematic diagram of the valve of first embodiment according to the present utility model；

Fig. 2 shows the stereoscopic schematic diagrams of the valve of second embodiment according to the present utility model；

Fig. 3 shows the stereoscopic schematic diagram of the valve of 3rd embodiment according to the present utility model；

Fig. 4 shows the schematic cross-sectional view of the valve head assembly of valve shown in Fig. 1-3；

Fig. 5 shows the stereoscopic schematic diagram of valve head assembly shown in Fig. 4, wherein guide rod is not shown；

Fig. 6 shows another stereoscopic schematic diagram of valve head assembly shown in fig. 5；

Fig. 7 shows the schematic front view of valve head assembly shown in fig. 6；And

Fig. 8 shows the schematic cross-sectional view of valve head assembly shown in fig. 6.

Specific embodiment

Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.Under It states and is intended to explain the general plotting of the utility model referring to explanation of the attached drawing to the utility model embodiment, without answering When being interpreted as a kind of limitation to the utility model.

In addition, in the following detailed description, to elaborate many concrete details to provide to embodiment convenient for explaining Comprehensive understanding.It should be apparent, however, that one or more embodiments can also be carried out without these specific details. In other cases, well known construction and device does not embody diagrammatically to simplify attached drawing.

Fig. 1 shows the stereoscopic schematic diagram of the valve of first embodiment according to the present utility model, as an example, the valve can be used Make the compressed gas by-passing valve in the compressed gas return line of turbocharged engine.In the following description, with electronics pressure Contracting gas bypass valve describes the valve as example, it will be appreciated by those skilled in the art that described valve head assembly with And the valve including the valve head assembly can be used for any suitable application, be not limited in turbocharged engine, it is also unlimited In vehicle.

As shown in Fig. 1,4, electronic valve 100 includes shell 2, the movable valve head group being at least partially accommodated into shell 2 Part 1 and actuating assembly for activating the valve head assembly 1.The movable valve head assembly 1 includes valve head main body 11, elastomeric overmold Part 12, guide rod 13 and armature 3.In an optional embodiment, armature 3 can be columnar, and be interference fitted in On guide rod 13.

As shown in Figure 1, as an example, the shell 2 includes enclosure body 21, is connected to the enclosure body 21 The ring flange 22 of annular and the shield 23 for being connected to the ring flange 22, the shield 23 surround the valve head assembly 1 Outer peripheral surface setting, wherein the valve head assembly 1 can be mobile relative to the shield 23.Wherein, 22 He of ring flange The enclosure body 21 can be formed as one part.When the two is formed as one part, single injection-molded may be implemented, simplify Manufacturing process.However, it will be understood by those skilled in the art that the ring flange 22 and the enclosure body 21 can also be formed as Individual component, and be connected by way of coating and injection moulding.Such as by way of secondary injection molding, coating and injection moulding at After type enclosure body 21, then ring flange is formed by way of quadric injection mould and is arrived thereon.

Continue as shown in Figure 1, the actuating assembly is contained in shell 2 and includes: for enhancing the multiple of the magnetic force of valve 100 Stator, such as the upper stator 10 of 3 top of armature and the cricoid lower stator 4 around armature setting are set, each stator can To be made of permeability magnetic material；Upper bearing (metal) 7 and lower bearing 9 for being oriented to guide rod 13；At least partially around upper fixed The spool 5 of son 10 and armature 3；And the coil 6 that winding is arranged on spool 5.Wherein, guide rod 13 is in upper and lower two bearings Sliding, is oriented to the movement of guide rod 13 by bearing.

When valve 100 is powered, generates under the action of the electromagnetic force caused by coil 6 of armature 3 and (do not show far from valve seat Movement (being upwardly direction in Fig. 1) out), and then the valve head assembly is driven to move in the same direction together, to open valve. When the power-off of compressed gas by-passing valve, under the elastic force effect of the gravity and the elastic bias component 26 of the valve head assembly 1, (being downwardly direction in Fig. 1) is mobile in the opposite direction and is pressed on valve seat for the valve head assembly 1, to make gas passage It closes, valve is in close state at this time.

Valve head assembly 1 far from valve seat and towards the valve housing 2 movement when, generally the valve head main body 11 of metalwork and The upper end of elastomeric overmold part 12 thereon connects touching moving to the intracorporal structure of endpoint Shi Huiyu shell (such as ring flange 22) It hits, which generates noise, and to generate impact vibration between the building block of valve, and then after prolonged operation The sealing performance for influencing valve, even results in the failure of valve member.

Fig. 4 shows the schematic cross-sectional view of the valve head assembly of valve shown in FIG. 1, which includes valve head main body 11, should Valve head assembly is usually metalwork, which is formed as hollow generally u-shaped member comprising valve head bottom 111 and The cylindrical portion 112 extended from the valve head bottom 111 far from the valve seat, and including elastomeric overmold part 12, the elastomeric overmold Part for example partly coats the valve head main body by being molded overmolded mode.The material of the elastomeric overmold part 12 is, for example, Rubber passes through surfaces externally and internally overmolded, that valve head main body 11 is coated on by way of such as vulcanization.As an example, bullet Property coating member 12 include side covering portion 121, which at least partly coats the inner surface of the cylindrical portion 112, should Covering portion 12 further includes protruding portion 122, and as shown in Fig. 4,6,8, protruding portion 122 axially extends simultaneously from the side covering portion 121 The cylindrical portion 112 is extended beyond in one end far from the valve seat, as an example, the protruding portion 122 can also be from the side Covering portion 121 radially inwardly extends, to increase the thickness of the protruding portion 122 to reinforce the protruding portion 122.In valve head At the stroke end that component moves upwards, protruding portion 122 and the intracorporal structure of shell (are in the embodiment illustrated ring flange 22 The first flange 222, will be explained below) be in contact collision, due to protruding portion 122 as elastomeric overmold part 12 one Part uses flexible rubber material, therefore plays buffer function to the collision, and can be avoided the valve head of metal The collision of main body 11 and the first flange 222 reduces noise and reduces the vibration to valve member.

As an example, being shown in figure the entire inner surface that side covering portion 121 coats cylindrical portion 112.However, this field Technical staff is appreciated that side covering portion 121 can also only coat a part of the inner surface of cylindrical portion 112.

It will be understood by those skilled in the art that the protruding portion 1221 can be the continuous piece of annular, or at least two It is a and be spaced apart in a circumferential direction, as long as it extends beyond the cylindrical portion 112 in one end far from the valve seat to realize The collision impact of buffering component intracorporal for shell when valve head assembly 1 moves to upper extreme point.

As an example, the first flange that ring flange 22 includes main part 221, extends radially inwardly from the main part 221 222 and the second flange 223 for axially extending from first flange 222 towards the valve seat, second flange 223 exist Radially between the shield 23 and the cylindrical portion 112 of the valve head main body 11.As described above, the protruding portion 122 It is resisted against at the stroke end position that the valve head assembly 1 is moved far from valve seat on first flange 222.

Further, as an example, as shown in Fig. 1,4, the guide rod 13 is configured to connect the valve head main body 11 It connects in the valve.The elastomeric overmold part 12 further includes guide rod spacer portion 123, is formed in the guide rod and the valve head Between bottom 111.As an example, being formed with hole in the valve head bottom 111 of valve head main body 11, guide rod 13 passes through the hole and leads to Fixing piece 14 is crossed to be connected in valve head main body 11.In order to improve the position adaptability of valve head main body, often need valve head main body can Floating ground connects on the guide bar, i.e., the connection can be floating connection.As an example, in guide rod spacer portion 123 and fixing There are certain gap value (the region C in Fig. 4) on the axial direction of guide rod 13 between part 14, in guide rod spacer portion In guide rod 13 in the radial direction there are certain gap value (the region D in Fig. 4) between 123 and guide rod 13, thus real The floating requirement of existing valve head main body 11, that is, allow valve head main body 11 to control certain angle of floating.In order to further subtract Few noise, is provided with guide rod spacer portion 123, so that when it is that left and right is floated that valve head main body 11 is relative to the movement of guide rod 13, Noise caused by the extrusion and collision between valve head main body 11 and guide rod 13 is eliminated, and reduces the friction of the two, is extended The service life of valve.

As an example, the elastomeric overmold part 12 further includes bottom covering portion 124 as shown in Fig. 4,5,6,8, the bottom cladding Portion 124 includes positioned at the outer of the junction (i.e. the corner of valve head main body 11) of the valve head bottom 111 and the cylindrical portion 112 The outer cladding portion 1241 of side, wherein the guide rod spacer portion 123 is connected to the outer cladding portion 1241.When compressed gas bypasses When valve is closed, the outer cladding portion 1241 is pressed on the valve seat of client, since the material in the outer cladding portion 1241 is vulcanization Rubber, so there is better seal effect and reduce noise.As an example, as shown in Figure 5,6, guide rod spacer portion 123 are connected to the outer cladding portion 1241 by interconnecting piece 1243.For outer cladding portion 1241, although be shown in the attached drawings for It saves material and guarantees to seal and be arranged in the corner of valve head main body 11, it will be appreciated by those skilled in the art that should Outer cladding portion 1241 can also coat most or all of the outer peripheral surface of cylindrical portion 112.

As shown in Fig. 1,4,6, the bottom covering portion 124 further includes the radially inner side for being formed in the side covering portion 121 Limiting section 1242, for being limited to elastic bias component 26, wherein the elastic bias component to the valve head assembly into Row is biased to realize return of the valve head assembly 1 towards the valve seat.

In order to realize the sealing between shield 23 and valve head main body 11, prevent compressed gas via the leakage of valve member, It is provided with second seal 25 between the second flange 223 of ring flange 22 and the cylindrical portion 112 of the valve head main body 11, as Preferred example, the second seal 25 are configured to the generally V-shaped sealing ring being open towards the direction of the shell 2.

Fig. 2 shows the stereoscopic schematic diagrams of the valve of second embodiment according to the present utility model.The area of itself and first embodiment Place is not only that, first seal 24 is provided between the shield 23 and second flange 223, first sealing Part 24 is, for example, the sealing ring of annular, and for example can be set and be formed by groove on the outer surface of the second flange 223, with Compressed gas is avoided to leak between the ring flange 22 and the shield 23.

Fig. 3 shows the stereoscopic schematic diagram of the valve of 3rd embodiment according to the present utility model, the area with second embodiment Place is not only that the position of first seal 24 is different, which is arranged in the shield 23 and described first Between flange 222.

Although Fig. 2 and Fig. 3 show two setting positions of first seal 24, those skilled in the art can be managed Solution, can also also can be set with first seal 24 between shield 23 and the first flange 222 or second flange 223 Any position, and can according to need the one or more first seal 24 of setting.

The utility model further relates to a kind of turbocharged engine and vehicle comprising valve as described above, the turbine increase Thus hydraulic motor and vehicle are provided with advantage possessed by above-mentioned valve.As described above, the valve may be used as the whirlpool of the vehicle The compressed gas by-passing valve of engine with supercharger is taken turns, however can also be used for except application and the vehicle of remaining valve in vehicle Valve application, can equally play the role of reduce noise and impact and improve sealing effect.

Although some embodiments of the utility model general plotting have been shown and have illustrated, those of ordinary skill in the art will Understand, in the case where the principle and spirit without departing substantially from the utility model general plotting, these embodiments can be made a change, this The range of utility model is limited with claim and their equivalent.

Claims (17)

1. a kind of valve head assembly (1), suitable for matching the opening and closing to realize valve with valve seat, which is characterized in that the valve head assembly Include:

Valve head main body (11), the valve head main body (11) include:

Valve head bottom (111)；And

The cylindrical portion (112) extended from the valve head bottom (111) far from the valve seat；And

Elastomeric overmold part (12), the elastomeric overmold part (12) include:

Side covering portion (121), at least partly coats the inner surface of the cylindrical portion (112)；And

Protruding portion (122), the protruding portion (122) extend from the side covering portion (121) and in one end far from the valve seat Extend beyond the cylindrical portion (112).

2. valve head assembly (1) according to claim 1, which is characterized in that

The valve head assembly (1) further include:

Guide rod (13), the guide rod (13) are connected to the valve head main body (11), wherein

The elastomeric overmold part (12) further include:

Guide rod spacer portion (123) is arranged between the guide rod and the valve head bottom (111), to avoid the guiding The contact of bar (13) and the valve head bottom (111).

3. valve head assembly (1) according to claim 2, which is characterized in that

The elastomeric overmold part (12) further includes bottom covering portion (124), and the bottom covering portion (124) includes being located at the valve head bottom The outer cladding portion (1241) in the outside of portion (111) and the junction of the cylindrical portion (112).

4. valve head assembly (1) according to claim 3, which is characterized in that

The bottom covering portion (124) further include:

It is formed in the limiting section (1242) of the radially inner side of the side covering portion (121), is used for the valve head assembly described in bias (1) To realize that the elastic bias component (26) of the return of the valve head assembly (1) is limited.

5. valve head assembly (1) according to claim 1, which is characterized in that

The protruding portion (122) radially-inwardly protrudes from the side covering portion (121).

6. valve head assembly (1) according to claim 1, which is characterized in that

The protruding portion (122) is formed as at least two, and is spaced apart on the circumferencial direction of the side covering portion (121).

7. valve head assembly (1) according to claim 1, which is characterized in that

The elastomeric overmold part is formed by vulcanized rubber.

8. a kind of valve, comprising:

Shell (2)；

According to claim 1, valve head assembly described in any one of -7 (1) be at least partially accommodated into the shell (2) simultaneously Can be mobile relative to the shell (2), and

Actuating assembly, the actuating assembly are contained in the shell (2), to activate the movement of the valve head assembly (1).

9. valve according to claim 8, which is characterized in that

The shell (2) includes:

Enclosure body (21)；

It is connected to the ring flange (22) of the annular of the enclosure body (21)；And

It is connected to the shield (23) of the ring flange (22), the shield (23) surrounds the periphery of the valve head assembly (1) Face setting, wherein the valve head assembly (1) can be mobile relative to the shield (23).

10. valve according to claim 9, which is characterized in that

The ring flange (22) includes:

Main part (221)；

The first flange (222) extended radially inwardly from the main part (221)；And

The second flange (223) axially extended from first flange (222) towards the valve seat, second flange (223) it is radially positioned between the shield (23) and the cylindrical portion (112) of the valve head main body (11)；

Wherein, the protruding portion (122) is suitable for being resisted against institute at the stroke end of the valve head assembly (1) far from valve seat movement It states on the first flange (222).

11. valve according to claim 10, which is characterized in that

Between the shield (23) and first flange (222) and/or the shield (23) and second flange (223) first seal (24) are provided between.

12. valve according to claim 10, which is characterized in that

Second seal is provided between second flange (223) and the cylindrical portion (112) of the valve head main body (11) (25)。

13. valve according to claim 12, which is characterized in that

The second seal (25) is configured to the generally V-shaped sealing ring being open towards the direction of the shell (2).

14. the valve according to any one of claim 9-13, which is characterized in that

The ring flange (22) and the enclosure body (21) are formed as one part.

15. the valve according to any one of claim 9-13, which is characterized in that

The ring flange (22) and the enclosure body (21) are formed as individual component, and are connected by way of coating and injection moulding It connects.

16. a kind of turbocharged engine, which is characterized in that including the valve according to any one of claim 8-15, Described in valve be used as the turbocharged engine compressed gas by-passing valve.

17. a kind of vehicle, which is characterized in that including turbocharged engine according to claim 16.