CN208587221U - Balancing valve apparatus applied to asymmetric path - Google Patents
Balancing valve apparatus applied to asymmetric path Download PDFInfo
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- CN208587221U CN208587221U CN201820861464.5U CN201820861464U CN208587221U CN 208587221 U CN208587221 U CN 208587221U CN 201820861464 U CN201820861464 U CN 201820861464U CN 208587221 U CN208587221 U CN 208587221U
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- volute
- bushing
- axis
- valve
- rocker arm
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- 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
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Abstract
The utility model belongs to turbo-charger technical field, it is related to a kind of balancing valve apparatus applied to asymmetric path, including volute, the volute has the big runner of volute, volute small flow channels and the volute counter balance pocket for being connected to the big runner of volute, volute small flow channels, balance valve module is provided in the volute small flow channels, the first bushing is arranged in one end in the cavity of the volute counter balance pocket, the second bushing is arranged in the other end, axis is rotatably dispose in the first bushing, in the second bushing, and the both ends of axis are contacted with atmosphere, and in the fixed link assembly in the outer end of axis；Balance valve module includes rocker arm, valve block and gasket, and wherein rocker arm is fixedly connected on axis corresponding to the part between the first bushing, the second bushing, and the central axis of valve block is installed in the inner hole of rocker arm, and is fixed by gasket axial limiting.The balancing valve apparatus effectively eliminates the pressure difference of balance valve system, realizes the self-balancing of balanced valve, influences to reduce and eliminate harmful active force on balanced valve.
Description
Technical field
The utility model belongs to turbo-charger technical field, is related to a kind of balanced valve dress applied to asymmetric path
It sets.
Background technique
It is well known that turbocharger is pushed in turbine case using the exhaust gas inertia impulsive force being discharged from engine
Turbine, turbine drive coaxial pressure impeller again, and pressure impeller compels to allow more air into engine chamber and fuel mixing combustion
It burns to improve the power of engine generation.The power for usually generating combustion process maximizes, and engine is equipped with and turbine
The divided exhaust manifold of compressed air induction system connection.The divided exhaust manifold system is in addition to helping to retain cylinder generation
Exhaust energy improves outside engine power, it is also necessary to so that the discharge of engine exhaust is minimum.
The discharge of above-mentioned described engine exhaust is primarily referred to as the air pollution mixing being discharged after engine chamber burning
Object, including solid particle and oxynitrides (NOx) etc..Due to the implementation of increasingly strict emission regulation, engine producer makes
(EGR) system is recycled with a kind of discarded exhaust gas.Discarded recycling (EGR) system is the exhaust gas that will be generated after engine combustion
A part recycle again toward return to cylinder participate in burning.By reducing the content of oxygen in engine combustion room,
Ignition temperature is reduced, to reduce the nitrogen oxides (NOx) in engine exhaust gas.
To realize EGR driving, it is necessary to meet: it is real that pressure in spiral inlet is greater than cold rear admission pressure ability in engine
Existing EGR driving.The prior art has the technology of variable turbine section technology and constant cross-section balance runner；Wherein variable turbine section
Technical costs is higher and poor reliability.The technology of constant cross-section balance runner is the pressure for meeting EGR driving and needing two runners
Cold rear admission pressure in simultaneously greater than, such engine exhaust is unsmooth, causes pumping loss.And asymmetric path volute has greatly
Two runners of small different area, wherein small flow channels are connected with the EGR circuit lines of engine, small flow channels whirlpool with higher
Preceding pressure, pressure is greater than EGR driving easy to accomplish under the conditions of cold rear admission pressure in engine, pressure before big runner whirlpool before whirlpool
It is lower, cold rear admission pressure in engine can be less than, so that the pumping loss function of engine is reduced, in the same of reduction discharge
When, improve fuel economy.But for common asymmetric turbocharger, the big load area of high speed within the engine,
When EGR driving capability is enough, pressure is much larger than pressure before the whirlpool of big runner before the whirlpool of small flow channels.Shift to an earlier date so as to cause turbine flow
Block, boost in pressure before whole whirlpool, economy reduces.In order to improve the problem, it is arranged on the large and small runner of asymmetric path
Balanced valve, when the pressure of small flow channels is more than the pressure value of EGR driving, which is opened by control system control makes small stream
A part of exhaust gas in road can flow to big runner, so that pressure before the whirlpools of small flow channels is reduced, although there is pressure before the whirlpool of big runner
Risen, but pressure is to reduce before whole whirlpool, whole turbine negotiability is also to improve, to reduce engine
Pumping loss improves engine fuel economy.
Existing booster generally all have common bypass valve arrangement, as shown in 15 in Fig. 4, its effect be bypass fall it is more
Remaining exhaust gas is used to control the boost pressure of turbocharger and prevents booster from exceeding the speed limit into gas exhaust piping.In patent of invention public affairs
In the number of opening 200880022691.8 and utility model patent 201721524025.7, the two patents describe asymmetric double fluid
The corresponding shell structure in road, the balanced valve used are common bypass valve arrangements used in turbocharger.Such as asymmetric
In runner application, as shown in figure 5, making portion flow to big runner 16 using the bypass action of bypass valve assembly 15.However
In actual application, since the pressure of small flow channels is very high, there are very big exhaust gas in the counter balance pocket that large and small runner converges
Pressure.Since axis one end of the balanced valve is in counter balance pocket, the other end and contacting external air, so that larger by one on axis
Pressure difference, the pressure difference generate a harmful active force act on the axis.When balanced valve frequently opens and closes, put down
The bushing interface that the rocker arm and axis of weighing apparatus valve support is too small, so that the rocker arm of balanced valve be made to generate very big abrasion, serious shadow
The service life of acoustic system.On the other hand, anti-rotation structure is not used in the valve block of the balanced valve, and valve block is by the exhaust gas arteries and veins from engine
Punching can constantly rotate, and aggravate the attached abrasion of movement of valve block to influence the service life.
Summary of the invention
The utility model is in view of the above-mentioned problems, provide a kind of balancing valve apparatus applied to asymmetric path, the balanced valve
Device effectively eliminates the pressure difference of balance valve system, realizes the self-balancing of balanced valve, harmful on balanced valve to reduce and eliminate
Active force influence.
According to the technical solution of the utility model includes: a kind of balancing valve apparatus applied to asymmetric path, including volute, institute
Stating volute has the big runner of volute, volute small flow channels and the volute counter balance pocket for being connected to the big runner of volute, volute small flow channels,
It is characterized in that: being provided with balance valve module in the volute small flow channels, the volute counter balance pocket is by volute, cover board and cover board spiral shell
Nail is fixed to form airtight cavity, and the first bushing is arranged in one end in the counter balance pocket body, and the second bushing, axis rotation setting is arranged in the other end
In the first bushing, the second bushing, and the both ends of axis are contacted with atmosphere, and in the fixed link assembly in the outer end of axis；Balance
Valve module includes corresponding to the part between the first bushing, the second bushing on rocker arm, valve block and gasket, wherein rocker arm and axis to fix
Connection, the central axis of valve block is installed in the inner hole of rocker arm, and is fixed by gasket axial limiting.
The valve block is equipped with boss as a further improvement of the utility model, and rocker arm is equipped with card slot, and boss is placed in
In the card slot.
The boss is the trapezium structure of narrow, the lower bottom width in upper bottom as a further improvement of the utility model, and card slot is ladder
Shape slot.
The boss is rectangular configuration as a further improvement of the utility model, and card slot is rectangular channel.
The link assembly includes connecting rod and link pin as a further improvement of the utility model, and connecting rod one end is fixed
In on axis, the connecting rod other end connects link pin.
The link pin passes through the hole of connecting rod as a further improvement of the utility model, and is pressed and is fixed together, even
Lever pin is equipped with connection annular groove.
The axis and rocker arm are welded to connect as a further improvement of the utility model,.
The utility model has the technical effect that the utility model structure is simple, and compact and reasonable can eliminate balance valve system
On pressure difference, realize the self-balancing of balance valve system, can effectively reduce or eliminate the influence of harmful force, balanced valve is provided
System lifetim.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the first embodiment of the utility model.
Fig. 2 is the end view of the utility model.
Fig. 3 is the structural schematic diagram of second of embodiment of the utility model.
Fig. 4 is the bypass valve arrangement of existing booster.
Fig. 5 is the bypass valve arrangement of existing booster.
Specific embodiment
Specific embodiment of the present utility model is further described with reference to the accompanying drawing.
In Fig. 1 ~ 3, including volute 1, the first bushing 2, rocker arm 3, card slot 3-1, the second bushing 4, axis 5, connecting rod 6, link pin
7, the big runner 9 of volute counter balance pocket 8, volute, cover board 10, cover screw 11, valve block 12, boss 12-1, volute small flow channels 13, gasket
14, bypass valve assembly 15, big runner 16 etc..
As shown in Fig. 1 ~ 3, the utility model is a kind of balancing valve apparatus applied to asymmetric path, including volute 1, institute
Volute 1 is stated with the big runner 9 of volute, volute small flow channels 13 and the volute for being connected to volute big runner 9 and volute small flow channels 13
Counter balance pocket 8, balance valve module is provided on 13 valve port of volute small flow channels, and the volute counter balance pocket 8 is by volute 1, cover board
10 and the fixed composition airtight cavity of cover screw 11, the first bushing 2, the second lining of other end setting is arranged in one end in the counter balance pocket body
Set 4, axis 5 is rotatably dispose in the first bushing 2, in the second bushing 4, and the both ends of axis 5 are contacted with atmosphere, and in the outer end of axis 5
Link assembly is fixed in portion；
The balance valve module includes corresponding to the first bushing on rocker arm 3, valve block 12 and gasket 14, wherein rocker arm 3 and axis 5
2, the part between the second bushing 4 is fixedly connected, and the central axis of valve block 12 is installed in the inner hole of rocker arm 3, and passes through gasket 14
Axial limiting is fixed.
Valve block 12 is equipped with boss 12-1, and rocker arm 3 is equipped with card slot 3-1, and boss 12-1 is placed in the card slot 3-1.It is convex
Platform 12-1 is rectangular configuration, and card slot 3-1 is rectangular channel.
Link assembly includes connecting rod 6 and link pin 7, and 6 one end of connecting rod is fixed on axis 5, and 6 other end of connecting rod connects link pin
7。
Link pin 7 passes through the hole of connecting rod 6, and is pressed and is fixed together, and link pin 7 is equipped with connection annular groove.Link assembly
Thrust and pulling force effect for transmitting control system offer is in axis 5, to control the opening and closing of balance valve module.
Axis 5 and rocker arm 3 are welded to connect, it is ensured that axis 5 and rocker arm 3 rotate synchronously, and the welding region of rocker arm 3 and axis 5 is waist type
Slot.
As shown in figure 3, second of embodiment of the utility model, the difference of the embodiment and the first embodiment
It is, boss 12-1 is the trapezium structure of narrow, the lower bottom width in upper bottom, and card slot 3-1 is dovetail groove.This structure makes boss 12-1 root
Portion is strongr.
The mode of indentation assembly is respectively adopted mounted in volute counter balance pocket in the first bushing 2, the second bushing 4 in the utility model
8 two sides.
Volute counter balance pocket 8 in the utility model be imported by air-flow from the big runner 9 of volute or volute small flow channels 13
A chamber on volute 1, this chamber are closed with the external world other than the big runner 9 of volute, volute small flow channels 13 are connected to.Wherein
Balance valve module (being made of rocker arm 3, valve block 12 and gasket 14) is located at towards in the volute small flow channels 13 of volute counter balance pocket 8.
When balance valve module (being made of rocker arm 3, valve block 12 and gasket 14) is opened, the flows of volute small flow channels 13 is from volute small flow channels
13 valve port flows into volute counter balance pocket 8 and leads to the big participation of the runner 9 turbine acting of volute again.
Claims (7)
1. a kind of balancing valve apparatus applied to asymmetric path, including volute (1), the volute (1) has the big runner of volute
(9), volute small flow channels (13) and the volute counter balance pocket (8) for being connected to the big runner of volute (9) and volute small flow channels (13),
It is characterized by: being provided with balance valve module on the volute small flow channels (13), the volute counter balance pocket (8) is by volute
(1), the airtight cavity of cover board (10) and cover screw (11) composition, one end setting the first bushing (2) in the counter balance pocket cavity, separately
The second bushing (4) are arranged in one end, and axis (5) is rotatably dispose in the first bushing (2), in the second bushing (4), and the both ends of axis (5) are equal
It is contacted with atmosphere, and in the fixed link assembly in the outer end of axis (5)；
The balance valve module includes rocker arm (3), valve block (12) and gasket (14), and the is wherein corresponded on rocker arm (3) and axis (5)
Part between one bushing (2), the second bushing (4) is fixedly connected, and the central axis of valve block (12) is installed on the inner hole of rocker arm (3)
In, and fixed by gasket (14) axial limiting.
2. being applied to the balancing valve apparatus of asymmetric path as described in claim 1, it is characterised in that: on the valve block (12)
Equipped with boss (12-1), rocker arm (3) is equipped with card slot (3-1), and boss (12-1) is placed in the card slot (3-1).
3. being applied to the balancing valve apparatus of asymmetric path as claimed in claim 2, it is characterised in that: the boss (12-1)
For the trapezium structure of narrow, the lower bottom width in upper bottom, card slot (3-1) is dovetail groove.
4. being applied to the balancing valve apparatus of asymmetric path as claimed in claim 2, it is characterised in that: the boss (12-1)
For rectangular configuration, card slot (3-1) is rectangular channel.
5. being applied to the balancing valve apparatus of asymmetric path as described in claim 1, it is characterised in that: the link assembly packet
Connecting rod (6) and link pin (7) are included, connecting rod (6) one end is fixed on axis (5), and connecting rod (6) other end connects link pin (7).
6. being applied to the balancing valve apparatus of asymmetric path as claimed in claim 4, it is characterised in that: the link pin (7)
Across the hole of connecting rod (6), and it is pressed and is fixed together, link pin (7) is equipped with connection annular groove.
7. as described in claim 1 be applied to asymmetric path balancing valve apparatus, it is characterised in that: the axis (5) with shake
Arm (3) is welded to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820861464.5U CN208587221U (en) | 2018-06-05 | 2018-06-05 | Balancing valve apparatus applied to asymmetric path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820861464.5U CN208587221U (en) | 2018-06-05 | 2018-06-05 | Balancing valve apparatus applied to asymmetric path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208587221U true CN208587221U (en) | 2019-03-08 |
Family
ID=65535995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820861464.5U Active CN208587221U (en) | 2018-06-05 | 2018-06-05 | Balancing valve apparatus applied to asymmetric path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208587221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547695A (en) * | 2018-06-05 | 2018-09-18 | 无锡康明斯涡轮增压技术有限公司 | Balancing valve apparatus applied to asymmetric path |
-
2018
- 2018-06-05 CN CN201820861464.5U patent/CN208587221U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108547695A (en) * | 2018-06-05 | 2018-09-18 | 无锡康明斯涡轮增压技术有限公司 | Balancing valve apparatus applied to asymmetric path |
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