CN206309473U - A kind of flap combining structure of waste gate - Google Patents
A kind of flap combining structure of waste gate Download PDFInfo
- Publication number
- CN206309473U CN206309473U CN201621154119.5U CN201621154119U CN206309473U CN 206309473 U CN206309473 U CN 206309473U CN 201621154119 U CN201621154119 U CN 201621154119U CN 206309473 U CN206309473 U CN 206309473U
- Authority
- CN
- China
- Prior art keywords
- flap
- waste gate
- assembling
- pedestal
- combining structure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000002699 waste material Substances 0.000 title claims abstract description 86
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000007789 sealing Methods 0.000 claims abstract description 45
- 230000003467 diminishing effect Effects 0.000 claims description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 101001017827 Mus musculus Leucine-rich repeat flightless-interacting protein 1 Proteins 0.000 description 23
- 239000007789 gas Substances 0.000 description 14
- 239000002912 waste gas Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Supercharger (AREA)
Abstract
The utility model proposes a kind of flap combining structure of waste gate, including flap and the integrally formed axostylus axostyle of flap and waste gate pedestal, wherein, the joint portion between flap and waste gate pedestal includes contact surface and labyrinth sealing portion.The utility model copes with system tolerance, thus can ensure there is enough sealings between flap and waste gate pedestal.Meanwhile, the utility model can farthest reduce to flap and the machining accuracy of contact surface both waste gate pedestal requirement so that reduces cost.
Description
Technical field
The utility model is related to turbocharger, more particularly to a kind of waste gate flap combining structure.
Background technology
Turbocharger is used to increase the power of internal combustion engine, and its principle lifts air-intake of combustion engine passage using waste gas stream
Pressure, improves the injection of oxygen.Turbocharger has the turbine for being arranged on exhaust steam passage, using the exhaust gas driven turbine
Machine, and then driving force is driven to the compressor of air-intake of combustion engine passage.
Waste gate is the bypass channel for being located at turbine side, for the forward and backward exhaust steam passage of turbine to be coupled together,
And waste gate has the flap that can be opened and closed, control the conducting of the bypass channel and close by the opening and closing of the flap
Plug.When exhaust gas flow is smaller, the flap of waste gate is closed, and whole waste gas all flow through turbine, for providing driving force；When useless
When throughput is excessive, the flap of waste gate is opened, thus a part of waste gas can flow through the bypass channel, so as to bypass turbine.
In traditional waste gas door, in order to control the opening and closing of flap, an axostylus axostyle is connected to flap, and by rivet
Or the axostylus axostyle and flap are combined in welding.The gap of axial direction and radial direction is needed between flap and the axostylus axostyle, so as to it
Can mutually move, so as to ensure good contact to reach good sealing property when flap is closed.Due to waste gas
Effect is sprung up, abnormal sound can be sent between flap and axostylus axostyle, in order to improve the problem, dish can be increased between flap and axostylus axostyle
Spring.But, due to the limitation of spring material thermal adaptability, can only be used in the case where highest is not higher than 950 degrees Celsius
This method.And, this conventional multi-part assembly type axostylus axostyle has complicated part composition, it is necessary to pass through riveting or Welder
Sequence is assembled, thus relatively costly；Also need to surface quality and high-grade tolerance higher；And it is difficult to be fully solved
Abnormal sound problem.
Some prior arts are employed and designed with the integrally formed axostylus axostyle of flap, will not run into the problem of abnormal sound, while also
Being capable of reduces cost.But, integrally formed axostylus axostyle design is encountered again in the sealing between flap and waste gate pedestal
New challenge.
Chinese patent literature CN103670681A, CN103670682A, CN103670677A etc. are prior art discloses tool
There is the waste gate valve valve structure for being integrally formed axostylus axostyle, wherein providing spherical, ellipse by the pedestal and wastegate plug for waste gate
Shape, the surface combination of taper, it is ensured that linear contact lay between pedestal and wastegate plug ensures good sealing property, and it is right to reduce
The tolerance that waste gate is axially aligned.But, it is full to reach that this kind of structure needs the surface for abutting against to have surface quality higher
The sealing of meaning.
Chinese patent literature CN102678196B have can deformation lip or outer rim, so as to reduce plane wastegate plug
With the tolerance between plane waste gate pedestal.But, this can deformation featheredge under actual operating conditions because waste gas is caused
High temperature vibrations and be easy to abrasion.
Patent document CN103732879A disclose it is a kind of can deformation waste gas gate arm, compensation Men Saiyu pedestals between public affairs
Difference.But, it needs sufficiently large closing force, also still needs high-quality surface to reach satisfied sealing.
Patent document WO2014160594A1 discloses the Men Sai, the Men Saike of a kind of free floating thus self centering formula
Abut spill waste gate pedestal.Patent document CN102165166B devises a convex portion, can reach desired waste gas discharge
Performance.The convex portion can have and be of a variety of shapes, and convex portion height be at least wastegate plug base diameter half.
These designs are there is still a need for high-quality surface is to reach satisfied sealing, and structure is complex.
Utility model content
In view of problem above present in above-mentioned prior art, the utility model proposes a kind of flap combination knot of waste gate
Structure.The flap combining structure has integrally formed axostylus axostyle, and copes with system tolerance, thus can ensure flap and give up
There is enough sealings between valve pedestal.Meanwhile, the utility model can be reduced farthest to flap and waste gate
The requirement of the machining accuracy of both pedestals contact surface, so that reduces cost.
Flap combining structure described in the utility model includes flap and the integrally formed axostylus axostyle of flap and waste gate base
Seat, wherein, the joint portion between flap and waste gate pedestal includes contact surface and labyrinth sealing portion.In flap and waste gate base
What is produced due to the tolerance of the two at the contact surface of seat is leaked through the addition labyrinth sealing portion and is minimized.
Preferably, the flap forms described contact with the surface portion that waste gate pedestal contacts with each other after assembling
Face.
Preferably, when the labyrinth sealing portion produces leakage on business poor in the flap and waste gate pedestal
There is provided as a zigzag path of gas travel.
Preferably, surfaces opposite to each other are respectively provided with the surface element of matching after assembling both flap and waste gate pedestal
Divide and non-contacting surface portion；After assembling, the match surface of flap and waste gate pedestal contacts with each other to form the contact
Face, the gap formed between the non-planar contact surfaces of the two is used as the labyrinth sealing portion.
It may further be preferable that the contact surface occupy flap and both waste gate pedestals joint portion radially extend length
The 2/3 of degree, and labyrinth sealing portion occupies radially extend length the 1/3 of the two joint portion.
Preferably, flap is respectively provided with the surface portion for contacting with each other after assembling with waste gate pedestal, shape after assembling
Into the contact surface；And the flap also have project to waste gate pedestal open interior convex portion, the convex portion with
There is a diminishing gap, as the labyrinth sealing portion between waste gate base internal wall.
Preferably, flap is respectively provided with the surface portion for contacting with each other after assembling, the surface element with waste gate pedestal
Tap is touched and forms a diminishing cross-flow region, used as the labyrinth sealing portion.
Preferably, flap is respectively provided with the surface portion for contacting with each other after assembling with waste gate pedestal, shape after assembling
Into the contact surface；Also, flap also has an annular protrusion outside contact surface, and waste gate pedestal has and the annular
Raised corresponding annular groove, the annular protrusion collectively forms the labyrinth sealing portion with annular groove.
Preferably, waste gate pedestal have a surface and one from the surface be in step-like stage portion upwardly；Institute
Flap is stated with a bottom surface and the outside wall surface outside the bottom surface, the outside wall surface is two intersecting circular conical surfaces；After assembling,
The part that the waste gate pedestal is in contact with the flap is used as the contact surface, and the stage portion is described with flap
Outside wall surface forms the labyrinth sealing portion.
It may further be preferable that after assembling, the part that the waste gate pedestal is in contact with the flap is waste gate base
Seat the surface and flap the bottom surface, or the stage portion of waste gate pedestal top surface and the outer wall of the flap
Face.
It can be seen that, the beneficial effects of the utility model include：(1) for traditional non-integral type flap, due to removing
Disk spring and packing ring necessary to assembly type axostylus axostyle, it is no longer necessary to riveting or welding sequence, significantly reduce cost, Er Qiegen
The abnormal sound problem that assembling design is brought is eliminated in sheet；With better seal, the abrasion of vibrations is also reduced.(2) phase
Than in it is of the prior art other have be integrally formed axostylus axostyle design flap, the utility model have smaller sealing surface, because
And the processing of needs is less.(3) additional labyrinth sealing portion reduces the influence in the gap caused by tolerance, improves waste gas
Sealing property.
Brief description of the drawings
Fig. 1 is flap combining structure overall schematic of the present utility model；
Fig. 2A -2C are the schematic diagrames of the utility model flap and the first embodiment of the joint portion of waste gate pedestal；
Fig. 3 A-3C are the schematic diagrames of the utility model flap and the second embodiment of the joint portion of waste gate pedestal；
Fig. 4 A-4B are the schematic diagrames of the utility model flap and the 3rd embodiment of the joint portion of waste gate pedestal；
Fig. 5 A-5B are the schematic diagrames of the utility model flap and the fourth embodiment of the joint portion of waste gate pedestal；
Fig. 6 A-6B are the schematic diagrames of the utility model flap and the 5th embodiment of the joint portion of waste gate pedestal.
Specific embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
Fig. 1 is flap combining structure overall schematic of the present utility model.It can be seen that, the flap combining structure includes waste gate
Pedestal 2, the pedestal provides the bypass channel circulated for waste gas in turbocharger, and flap 1 is assembled on pedestal, for controlling
The conducting of the bypass channel and closure, have and the integrally formed axostylus axostyle 3 of the flap on flap 1.
In the utility model, joint portion of the flap 1 with waste gate pedestal 2 therebetween includes：Contact surface and labyrinth type are close
Envelope portion.The leakage produced due to tolerance at the contact surface of flap 1 and both waste gate pedestals 2, it is attached by adding
Plus the labyrinth sealing portion and be minimized, so as to ensure sealing on the premise of, reduce and contact surface surface added
The quality requirement of work, plays cost-effective effect.The contact surface and labyrinth sealing portion can have various specific knots
Configuration formula, divides multiple embodiments to describe without limitation below.
First embodiment
Referring to Fig. 2A -2B, flap 1 includes with the joint portion of both waste gate pedestals 2：Contact surface 4A and labyrinth sealing
Portion 4B.From Fig. 2 B, what the contact surface 4A occupied flap 1 and both waste gate pedestals 2 joint portion radially extends length
2/3, and labyrinth sealing portion 4B occupies radially extend length the 1/3 of the two joint portion.Referring to Fig. 2 C, flap 1 and useless
Surfaces opposite to each other are designed with surface portion (including the matching of flap 1 for matching to both valve pedestals 2 after assembling
The match surface 2A of surface 1A, waste gate pedestal, the matching of the two radian) and non-contacting surface portion (including non-of flap
Match surface 2B with surface 1B, waste gate pedestal, the two radian is not matched that)；After assembling, the match surface of the two
1A, 2A contact with each other to form the contact surface 4A；And after non-planar contact surfaces 1B, 2B assembling of the two toward each other, it is non-matching
A labyrinth gap is formed between surface 1B, 2B, as the labyrinth sealing portion 4B.As shown in Figure 2 C, when flap 1 and waste gate
The contact surface 4A of pedestal 2 produces leakage due to tolerance, as shown in the arrow line in Fig. 2 C, gas is made by labyrinth sealing portion 4B
Body stroke forms a zigzag path, so as to effectively reduce gas leakiness.
Second embodiment
As shown in figs 3 a and 3b, flap 1 includes with the joint portion of both waste gate pedestals 2：Contact surface 4A and labyrinth type are close
Envelope portion 4B.Wherein, as shown in Figure 3 B, flap 1 is mutual with surface portion 1A, 2A that waste gate pedestal 2 contacts with each other after assembling
Matching, so as to realize the contact surface 4A of face face sealing；Flap 1 also has the convex portion 1B for projecting to the open interior of waste gate pedestal 2,
By convex portion 1B, one is defined between convex portion 1B and the inwall of waste gate pedestal 2 has the opening angle of 20-30 degree and cuts open
The diminishing gap in face, as the labyrinth sealing portion 4B.As shown in Figure 3 C, when flap 1 and waste gate pedestal 2 present compared with
During small opening angle (flap rotational angle is 2 degree in Fig. 3 C), as shown in arrow line, gas row is made by labyrinth sealing portion 4B
Journey forms a zigzag path, so as to effectively reduce gas leakiness.
3rd embodiment
Such as Fig. 4 A-4B, flap 1 and surface portion 1A, 2A that waste gate pedestal 2 contacts with each other after assembling formed one by
Tapered small cross-flow region, as the labyrinth sealing portion.As shown in Figure 4 B, when flap 1 and both waste gate pedestals 2 by
When leakage occurs in tolerance, by the guide functions in the cross-flow portion, gas travel is set to form a zigzag path, such as arrow in figure
Shown in line, so as to effectively reduce gas leakiness.
Fourth embodiment
As indicated by figures 5 a-5b, flap 1 includes with the joint portion of both waste gate pedestals 2：Contact surface and labyrinth sealing
Portion.Wherein, flap 1 also has an annular protrusion 1A outside contact surface, and waste gate pedestal 2 has corresponding annular groove
2A, annular protrusion 1A and annular groove 2A collectively form the labyrinth sealing portion, when flap 1 and both waste gate pedestals 2 by
When leakage occurs in tolerance, labyrinth sealing portion makes gas travel form a zigzag path, is let out so as to effectively reduce gas
Leakage degree.
5th embodiment
As shown in figures 6 a-6b, the part that waste gate pedestal 2 is combined with flap after assembling has a surface 2A and certainly
The surface is in step-like stage portion 2B upwardly, and stage portion 2B has the top surface of arc；Flap 1 has bottom surface 1A, bottom surface
1A matches with the surface 2A of waste gate pedestal, and also with outside wall surface 1B outside the bottom surface 1A, outside wall surface 1B is flap 1
Two intersecting circular conical surfaces, make flap 1 be embedded in the stair-stepping stage portion 2B by outside wall surface 1B.Both waste gate base can be made
Seat 2 surface 2A be in contact with the bottom surface 1A of flap 1 and as contact surface, it is also possible to make the stage portion 2B's of waste gate pedestal 2
Arc top surface is contacted and as contact surface with the outside wall surface 1B of flap 1.When flap and waste gate pedestal occur gas leakage, pass through
The outside wall surface 1B of the stage portion 2B and flap, and form the labyrinth sealing portion.As shown in Figure 6B, labyrinth sealing portion makes
Gas travel forms a zigzag path, as shown in arrow line in figure, so as to effectively reduce gas leakiness.
Above example is merely to illustrate the utility model, and is not limitation of the utility model, relevant technical field
Those of ordinary skill, in the case where spirit and scope of the present utility model are not departed from, can also make a variety of changes and become
Type, therefore all equivalent technical schemes fall within category of the present utility model, scope of patent protection of the present utility model should be by
Claim is limited.
Claims (10)
1. a kind of flap combining structure of waste gate, including flap and the integrally formed axostylus axostyle of flap and waste gate pedestal, its
It is characterised by, the joint portion between the flap and waste gate pedestal includes contact surface and labyrinth sealing portion.
2. flap combining structure according to claim 1, it is characterised in that the flap is with waste gate pedestal after assembling
The surface portion for contacting with each other forms the contact surface.
3. flap combining structure according to claim 1, it is characterised in that the labyrinth sealing portion is used in the valve
Valve and waste gate pedestal are on business poor and provide as a zigzag path of gas travel when producing leakage.
4. flap combining structure according to claim 1, it is characterised in that both flap and waste gate pedestal are after assembling
Surfaces opposite to each other are respectively provided with the surface portion and non-contacting surface portion of matching；After assembling, flap and waste gate base
The match surface of seat contacts with each other to form the contact surface, and the gap formed between the non-planar contact surfaces of the two is used as the labyrinth
Formula sealing.
5. flap combining structure according to claim 4, it is characterised in that the contact surface occupies flap and waste gate
Radially extend length the 2/3 of both pedestals joint portion, and labyrinth sealing portion occupy the two joint portion radially extend length
The 1/3 of degree.
6. flap combining structure according to claim 1, it is characterised in that flap is respectively provided with assembling with waste gate pedestal
The surface portion for contacting with each other afterwards, forms the contact surface after assembling；And the flap also have project to waste gate base
The convex portion of the open interior of seat, has a diminishing gap between the convex portion and waste gate base internal wall, as
The labyrinth sealing portion.
7. flap combining structure according to claim 1, it is characterised in that flap is respectively provided with assembling with waste gate pedestal
The surface portion for contacting with each other afterwards, the surface portion contacts to form a diminishing cross-flow region, used as the labyrinth type
Sealing.
8. flap combining structure according to claim 1, it is characterised in that flap is respectively provided with assembling with waste gate pedestal
The surface portion for contacting with each other afterwards, forms the contact surface after assembling；Also, flap also has an annular outside contact surface
Projection, and waste gate pedestal has annular groove corresponding with the annular protrusion, the annular protrusion is common with annular groove
Constitute the labyrinth sealing portion.
9. flap combining structure according to claim 1, it is characterised in that waste gate pedestal has a surface and from should
Surface is in step-like stage portion upwardly；The flap has a bottom surface and the outside wall surface outside the bottom surface, should
Outside wall surface is two intersecting circular conical surfaces；After assembling, the part that the waste gate pedestal is in contact with the flap is used as described
Contact surface, and the stage portion forms the labyrinth sealing portion with the outside wall surface of flap.
10. flap combining structure according to claim 9, it is characterised in that after assembling, the waste gate pedestal with it is described
The part that flap is in contact is the surface and the bottom surface of flap of waste gate pedestal, or waste gate pedestal step
The outside wall surface of the top surface in portion and the flap.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621154119.5U CN206309473U (en) | 2016-10-31 | 2016-10-31 | A kind of flap combining structure of waste gate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621154119.5U CN206309473U (en) | 2016-10-31 | 2016-10-31 | A kind of flap combining structure of waste gate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206309473U true CN206309473U (en) | 2017-07-07 |
Family
ID=59242807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621154119.5U Active CN206309473U (en) | 2016-10-31 | 2016-10-31 | A kind of flap combining structure of waste gate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206309473U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332041A (en) * | 2019-08-13 | 2019-10-15 | 无锡康明斯涡轮增压技术有限公司 | A kind of turbocharger exhaust gas seat |
-
2016
- 2016-10-31 CN CN201621154119.5U patent/CN206309473U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110332041A (en) * | 2019-08-13 | 2019-10-15 | 无锡康明斯涡轮增压技术有限公司 | A kind of turbocharger exhaust gas seat |
| CN110332041B (en) * | 2019-08-13 | 2024-03-29 | 无锡康明斯涡轮增压技术有限公司 | Exhaust valve seat device of turbocharger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201401 Part B, floor 1, building 9, No. 1299, Huancheng North Road, industrial comprehensive development zone, Fengxian District, Shanghai Patentee after: Boma Technology (Shanghai) Co.,Ltd. Address before: 201401 Part B, floor 1, building 9, No. 1299, Huancheng North Road, industrial comprehensive development zone, Fengxian District, Shanghai Patentee before: BOSCH MAHLER TURBOCHARGING SYSTEM (SHANGHAI) CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |