CN207673386U - A kind of supercharger worm-gear case that low-speed performance can be improved - Google Patents
A kind of supercharger worm-gear case that low-speed performance can be improved Download PDFInfo
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- CN207673386U CN207673386U CN201721806912.3U CN201721806912U CN207673386U CN 207673386 U CN207673386 U CN 207673386U CN 201721806912 U CN201721806912 U CN 201721806912U CN 207673386 U CN207673386 U CN 207673386U
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- China
- Prior art keywords
- flow channels
- changeover valve
- big runner
- small flow
- partition
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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 discloses a kind of supercharger worm-gear cases that low-speed performance can be improved, the inner flow passage being connected to including turbine box and with the turbine box cavity, partition is provided in the middle part of the inner flow passage so that the inner flow passage is divided into the big runner and small flow channels that area of section does not wait, exhaust vent valve unicom of the side of the big runner also with side bypass, it is provided with recessing groove at the partition of exhaust vent valve region section, it is provided with changeover valve in the recessing groove, the rotation driving end of the changeover valve is connect after passing through turbine tank wall with external device of rotation driving；When the changeover valve turns to the position parallel with the partition, the big runner and small flow channels can be separated, when the changeover valve turns to the not position parallel with the partition, the air inlet in the small flow channels flows in the big runner.
Description
Technical field
The utility model is related to turbine box field, more particularly to a kind of supercharger worm-gear case that low-speed performance can be improved can
It is widely used in vehicular engine technical field.
Background technology
With becoming increasingly conspicuous for market engine increasingly keen competition and environmental problem, mechanical to vehicle device, non-rice habitats
Performance requirement increasingly improves.As the main performance parts of engine, the requirement to the performance characteristics of booster is higher and higher.
The pulse discharge characteristic for preferably utilizing engine, obtains better low-speed performance, while realizing higher low speed EGR rate with full
Six emission request of sufficient state is the key that supercharging technology development.
Shown in Fig. 1 to Fig. 3, the exhaust gas of two runners 2a, 2b of current supercharger worm-gear case 1 with side bypass
3 unicom of vent valve cannot effectively control before forming higher whirlpool pressure before temperature and whirlpool, and then cannot effectively improve its EGR rate.
Utility model content
The purpose of this utility model is that for the above-mentioned insufficient and defect of the prior art, one kind is provided, low speed can be improved
The supercharger worm-gear case of energy, oil consumption and torque etc. of the engine in low speed can be effectively improved using the booster after the turbine box
Performance can also significantly improve its low speed EGR rate, and then improve emission performance for the engine with EGR.
Following technical scheme may be used to realize in the technical issues of the utility model is solved：
A kind of supercharger worm-gear case that low-speed performance can be improved, including turbine box and in being connected to the turbine box cavity
Portion's runner, which is characterized in that partition is provided in the middle part of the inner flow passage so that the inner flow passage is divided into area of section
Not equal big runner and small flow channels, the exhaust vent valve unicom of the side of the big runner also with side bypass, is located at described useless
It is provided with recessing groove at the partition of gas vent valve region section, changeover valve, the rotary valve are provided in the recessing groove
The rotation driving end of door is connect after passing through turbine tank wall with external device of rotation driving；When the changeover valve turn to it is described
When separating parallel position, the big runner and small flow channels can be separated, when the changeover valve turn to not with institute
It states when separating parallel position, the air inlet in the small flow channels flows in the big runner.
In a preferred embodiment of the utility model, the big runner is located at turbine outlet side, the small flow channels
Positioned at bearing body side.
The utility model has following features compared with prior art：
1, under the premise of keeping former booster performance, the low-speed performance of complete machine can be improved, reduce engine nitrogen oxygen, hydrocarbon
Discharge；In high speed by the adjusting of changeover valve, booster will not be caused to exceed the speed limit；
2, the casting method of conventional turbine case can be used to be produced, manufactured experimently, cost is relatively low, and reliability is good.
Description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the supercharger worm-gear case of the prior art.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the sectional view of Fig. 2.
Fig. 4 is a kind of structural schematic diagram of embodiment of the utility model.
Fig. 5 is the side view of Fig. 4.
Fig. 6 is the sectional view of Fig. 4.
Fig. 7 is the sectional view of Fig. 5.
Specific implementation mode
In order to make the technical means, creative features, achievement of purpose, and effectiveness of the utility model be easy to understand, under
The utility model is expanded on further in face.
Referring to Fig. 4 to a kind of supercharger worm-gear case that low-speed performance can be improved shown in Fig. 7, including turbine box 10 and and whirlpool
The inner flow passage 20 of 10 inner cavity of roller box connection.The middle part of inner flow passage 20 is provided with partition 30 and is cut so that inner flow passage 20 to be divided into
Equal big runner 21 and small flow channels 22, big runner 21 are not located at turbine outlet side to face area, and small flow channels 22 are located at bearing body one
Side.Exhaust vent valve 40 unicom of the side of big runner 21 also with side bypass.Positioned at 40 region of exhaust vent valve section
Separate and be provided with recessing groove 31 at 30, changeover valve 50 is provided in recessing groove 31, the rotation driving end 51 of changeover valve 50 is worn
It is connect with external device of rotation driving after crossing turbine tank wall.
For exhaust vent valve 40 only with 21 unicom of big runner, small flow channels 22 are not involved in deflation.It can be adjusted by changeover valve 50
The air-suction state and air inflow of two runners.
The operation principle of the utility model is as follows：
When working together with engine, under lower-speed state, the rotation of changeover valve 50 is (i.e. parallel with partition to middle
When position), so that two runners is worked independently, small flow channels 22 are connected to temperature before pressure before higher whirlpool and whirlpool, EGR pipe import
In small flow channels 22, the EGR rate of engine can be improved, improve discharge；When high speed, by the rotation of changeover valve 50, make small flow channels
The air inlet of 22 sides flows in big runner 21, prevents hypertonia in small flow channels 22, and booster overtemperature is caused to exceed the speed limit.
The advantages of basic principles and main features and the utility model of the utility model have been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (2)
1. a kind of supercharger worm-gear case that low-speed performance can be improved, including turbine box and the inside that is connected to the turbine box cavity
Runner, which is characterized in that partition is provided in the middle part of the inner flow passage so that the inner flow passage is divided into area of section not
Deng big runner and small flow channels, the exhaust vent valve unicom of the side of the big runner also with side bypass be located at the exhaust gas
It is provided with recessing groove at the partition of vent valve region section, changeover valve, the changeover valve are provided in the recessing groove
Rotation driving end pass through turbine tank wall after connect with external device of rotation driving；When the changeover valve turn to it is described every
When disconnected parallel position, the big runner and small flow channels can be separated, when the changeover valve turn to not with it is described
When separating parallel position, the air inlet in the small flow channels flows in the big runner.
2. a kind of supercharger worm-gear case that low-speed performance can be improved as described in claim 1, which is characterized in that the big runner
Positioned at turbine outlet side, the small flow channels are located at bearing body side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721806912.3U CN207673386U (en) | 2017-12-21 | 2017-12-21 | A kind of supercharger worm-gear case that low-speed performance can be improved |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721806912.3U CN207673386U (en) | 2017-12-21 | 2017-12-21 | A kind of supercharger worm-gear case that low-speed performance can be improved |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207673386U true CN207673386U (en) | 2018-07-31 |
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ID=62970555
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721806912.3U Active CN207673386U (en) | 2017-12-21 | 2017-12-21 | A kind of supercharger worm-gear case that low-speed performance can be improved |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207673386U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905854A (en) * | 2017-12-21 | 2018-04-13 | 湖南天雁机械有限责任公司 | A kind of supercharger worm-gear case for improving low-speed performance |
-
2017
- 2017-12-21 CN CN201721806912.3U patent/CN207673386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107905854A (en) * | 2017-12-21 | 2018-04-13 | 湖南天雁机械有限责任公司 | A kind of supercharger worm-gear case for improving low-speed performance |
| CN107905854B (en) * | 2017-12-21 | 2024-03-19 | 湖南天雁机械有限责任公司 | Supercharger turbine box capable of improving low-speed performance |
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