CN107905854A - A kind of supercharger worm-gear case for improving low-speed performance - Google Patents
A kind of supercharger worm-gear case for improving low-speed performance Download PDFInfo
- Publication number
- CN107905854A CN107905854A CN201711397482.9A CN201711397482A CN107905854A CN 107905854 A CN107905854 A CN 107905854A CN 201711397482 A CN201711397482 A CN 201711397482A CN 107905854 A CN107905854 A CN 107905854A
- Authority
- CN
- China
- Prior art keywords
- flow channels
- changeover valve
- small flow
- big runner
- partition
- 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.)
- Granted
Links
- 238000005192 partition Methods 0.000 claims abstract description 10
- 238000010586 diagram Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010020852 Hypertonia Diseases 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D25/00—Component parts, details, or accessories, not provided for in, or of interest apart from, other groups
- F01D25/24—Casings; Casing parts, e.g. diaphragms, casing fastenings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
- F02B37/12—Control of the pumps
- F02B37/18—Control of the pumps by bypassing exhaust from the inlet to the outlet of turbine or to the atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- F05D2220/00—Application
- F05D2220/40—Application in turbochargers
-
- 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
Abstract
The invention discloses a kind of supercharger worm-gear case for improving low-speed performance, the inner flow passage connected including turbine box and with the turbine box cavity, partition is provided with the middle part of the inner flow passage so that the inner flow passage is divided into big runner and the small flow channels that area of section does not wait, exhaust vent valve unicom of the sidepiece of the big runner also with sidepiece bypass, recessing groove is provided with the partition of exhaust vent valve region section, changeover valve is provided with the recessing groove, the rotation driving end of the changeover valve is connected after passing through turbine tank wall with exterior 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 is flowed in the big runner.
Description
Technical field
The present invention relates to turbine box field, more particularly to a kind of supercharger worm-gear case for improving low-speed performance can be extensive
Applied to 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 of engine is preferably utilized, obtains more preferable low-speed performance, while realizes higher low speed EGR rate with full
Sufficient six emission request of state is the key of supercharging technology development.
Referring to shown in Fig. 1 to Fig. 3, the exhaust gas of two runners 2a, 2b of current supercharger worm-gear case 1 with sidepiece bypass
3 unicom of vent valve, it is impossible to which effectively control forms before the whirlpool of higher pressure before temperature and whirlpool, and then cannot effectively improve its EGR rate.
The content of the invention
It is an object of the invention to the above-mentioned deficiency and defect for the prior art, there is provided a kind of low-speed performance of improving
Supercharger worm-gear case, the property such as oil consumption and moment of torsion of the engine in low speed can be effectively improved using the booster after the turbine box
Can, for the engine with EGR, its low speed EGR rate can be also significantly improved, and then improve emission performance.
Technical problem solved by the invention can be realized using following technical scheme：
A kind of supercharger worm-gear case for improving low-speed performance, including turbine box and in being connected with the turbine box cavity
Portion's runner, it is characterised in that partition is provided with the middle part of the inner flow passage so that the inner flow passage is divided into area of section
The big runner and small flow channels not waited, the exhaust vent valve unicom of the sidepiece of the big runner also with sidepiece bypass, positioned at described useless
Recessing groove is provided with the partition of gas vent valve region section, changeover valve, the rotary valve are provided with the recessing groove
The rotation driving end of door is connected after passing through turbine tank wall with exterior 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
State when separating parallel position, the air inlet in the small flow channels is flowed in the big runner.
In a preferred embodiment of the invention, the big runner is located at turbine outlet side, and the small flow channels are located at
Bearing body side.
The present invention has following features compared with prior art：
1st, on the premise of former booster performance is kept, the low-speed performance of complete machine can be improved, reduces engine nitrogen oxygen, hydrocarbon
Discharge；In high speed by the adjusting of changeover valve, booster will not be caused to exceed the speed limit；
2nd, the casting method of conventional turbine case can be used to be produced, manufactured experimently, cost is relatively low, and reliability is good.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structure 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 the structure diagram of an embodiment of the present invention.
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.
Embodiment
In order to make the technical means, the creative features, the aims and the efficiencies achieved by the present invention easy to understand, below into
One step illustrates the present invention.
Referring to a kind of supercharger worm-gear case for improving low-speed performance shown in Fig. 4 to 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 is divided into
The big runner 21 and small flow channels 22, big runner 21 that face area does not wait are located at turbine outlet side, and small flow channels 22 are located at bearing body one
Side.Exhaust vent valve 40 unicom of the sidepiece of big runner 21 also with sidepiece bypass.Positioned at 40 region of exhaust vent valve section
Separate and recessing groove 31 is provided with 30, changeover valve 50 is provided with recessing groove 31, the rotation driving end 51 of changeover valve 50 is worn
It is connected after crossing turbine tank wall with exterior device of rotation driving.
Exhaust vent valve 40 only is not involved in deflating with big 21 unicom of runner, small flow channels 22.It can be adjusted by changeover valve 50
The air-suction state and air inflow of two runners.
The operation principle of the present invention is as follows：
When working together with engine, under lower-speed state, changeover valve 50 rotates (i.e. parallel with partition to middle
During position), two runners is worked independently, small flow channels 22 have before the whirlpool of higher that temperature, EGR pipe import are connected to before pressure and whirlpool
In small flow channels 22, the EGR rate of engine can be improved, improves discharge；During high speed, by the rotation of changeover valve 50, make small flow channels
The air inlet of 22 sides is flowed in big runner 21, prevents hypertonia in small flow channels 22, causes booster overtemperature to exceed the speed limit.
The basic principles, main features and the advantages of the invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (2)
1. a kind of supercharger worm-gear case for improving low-speed performance, including turbine box and the inside that is connected with the turbine box cavity
Runner, it is characterised in that partition is provided with 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 sidepiece of the big runner also with sidepiece bypass, positioned at the exhaust gas
Recessing groove is provided with the partition of vent valve region section, changeover valve, the changeover valve are provided with the recessing groove
Rotation driving end pass through turbine tank wall after be connected with exterior device of rotation driving；When the changeover valve turn to it is described every
During 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 is flowed in the big runner.
A kind of 2. supercharger worm-gear case for improving low-speed performance as claimed in claim 1, it is characterised 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 |
|---|---|---|---|
| CN201711397482.9A CN107905854B (en) | 2017-12-21 | 2017-12-21 | Supercharger turbine box capable of improving low-speed performance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711397482.9A CN107905854B (en) | 2017-12-21 | 2017-12-21 | Supercharger turbine box capable of improving low-speed performance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107905854A true CN107905854A (en) | 2018-04-13 |
| CN107905854B CN107905854B (en) | 2024-03-19 |
Family
ID=61870726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711397482.9A Active CN107905854B (en) | 2017-12-21 | 2017-12-21 | Supercharger turbine box capable of improving low-speed performance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107905854B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952361A (en) * | 2005-10-21 | 2007-04-25 | 三菱重工业株式会社 | Exhaust turbo-supercharger |
| CN102536433A (en) * | 2012-01-11 | 2012-07-04 | 康跃科技股份有限公司 | Staged flow-adjustable turbine shell |
| CN103244208A (en) * | 2013-05-15 | 2013-08-14 | 无锡康明斯涡轮增压技术有限公司 | Turbocharger volute assembly |
| CN104895667A (en) * | 2015-02-25 | 2015-09-09 | 康跃科技股份有限公司 | Variable-section exhaust gas bypass turbine for meeting demand of EGR (exhaust gas recirculation) recirculation |
| DE102015003296A1 (en) * | 2015-03-14 | 2015-12-03 | Daimler Ag | Exhaust gas turbocharger for an internal combustion engine and method for operating such an exhaust gas turbocharger |
| CN106121748A (en) * | 2016-08-30 | 2016-11-16 | 湖南天雁机械有限责任公司 | Turbocharger pressure shell with air inlet and gas outlet connector |
| CN207673386U (en) * | 2017-12-21 | 2018-07-31 | 湖南天雁机械有限责任公司 | A kind of supercharger worm-gear case that low-speed performance can be improved |
-
2017
- 2017-12-21 CN CN201711397482.9A patent/CN107905854B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1952361A (en) * | 2005-10-21 | 2007-04-25 | 三菱重工业株式会社 | Exhaust turbo-supercharger |
| CN102536433A (en) * | 2012-01-11 | 2012-07-04 | 康跃科技股份有限公司 | Staged flow-adjustable turbine shell |
| CN103244208A (en) * | 2013-05-15 | 2013-08-14 | 无锡康明斯涡轮增压技术有限公司 | Turbocharger volute assembly |
| CN104895667A (en) * | 2015-02-25 | 2015-09-09 | 康跃科技股份有限公司 | Variable-section exhaust gas bypass turbine for meeting demand of EGR (exhaust gas recirculation) recirculation |
| DE102015003296A1 (en) * | 2015-03-14 | 2015-12-03 | Daimler Ag | Exhaust gas turbocharger for an internal combustion engine and method for operating such an exhaust gas turbocharger |
| CN106121748A (en) * | 2016-08-30 | 2016-11-16 | 湖南天雁机械有限责任公司 | Turbocharger pressure shell with air inlet and gas outlet connector |
| CN207673386U (en) * | 2017-12-21 | 2018-07-31 | 湖南天雁机械有限责任公司 | A kind of supercharger worm-gear case that low-speed performance can be improved |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107905854B (en) | 2024-03-19 |
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