CN206785484U - A kind of turbine shroud and turbocharger that groove is widened with flow - Google Patents
A kind of turbine shroud and turbocharger that groove is widened with flow Download PDFInfo
- Publication number
- CN206785484U CN206785484U CN201720453581.3U CN201720453581U CN206785484U CN 206785484 U CN206785484 U CN 206785484U CN 201720453581 U CN201720453581 U CN 201720453581U CN 206785484 U CN206785484 U CN 206785484U
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- Prior art keywords
- turbine
- flow
- groove
- exhaust
- widened
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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
Abstract
It the utility model is related to a kind of turbine shroud and turbocharger that groove is widened with flow, turbine shroud includes vortex section and the exhaust section being connected with vortex section, scroll runner and turbine room are provided with vortex section, one end of scroll runner is provided with waste gas inlet, the other end is provided with turbine nozzle, and it is connected by turbine nozzle with turbine room, turbine is provided with turbine room, exhaust passage is provided with exhaust section, one end of the exhaust passage is provided with exhaust vent, flow, which is offered, on the inwall of exhaust section widens groove, one end that the flow widens groove is connected with turbine room, the other end is connected with exhaust passage.Compared with prior art, the utility model is by setting flow to widen groove, under big flow operating mode, waste gas can widen groove outflow turbine by flow, add the through-current capability of turbine, nearby through-flow clogging occurs for the trailing edge for avoiding turbo blade, while has also taken into account the mechanical efficiency of turbine, can effectively lift the blocking traffic limit of turbine.
Description
Technical field
The utility model belongs to engine turbine supercharging technology field, is related to a kind of turbine shroud that groove is widened with flow
And turbocharger.
Background technology
Turbocharger is a kind of device for increasing air inflow by compressed air, and it is to utilize the useless of engine discharge
Gas inertia impulsive force promotes the turbine in turbine room, and turbine drives coaxial compressor impeller again, compressor impeller force feed is by sky
The air that air cleaner pipeline is sent, it is allowed to supercharging and enters cylinder.When the engine rotational speed is increased, the waste gas velocity of discharge and turbine
Rotating speed also synchronously increases, and compressor impeller just compresses more air and enters cylinder, and pressure and the density increase of air can fire
More fuel are burnt, correspondingly increase the rotating speed of fuel quantity and engine, and then increase the power output of engine.
Turbocharger has been greatly promoted the lifting of engine performance since being employed, and higher and higher starts
Machine standard also correspondingly improves the technical requirements to turbocharger, and it is turbocharging constantly to pursue high-performance and high reliability
One of target that device industry is pursued.
The turbine of turbocharger focuses on reliability and through-current capability in design.Because turbine is under the high rotating speed of high temperature
Work, so turbine generally uses thicker blade, to reduce thermal deformation caused by high temperature and high speed, but this can limit turbine
Through-current capability；Increase the through-current capability of turbine according to exhaust gas by-pass valve, because exhaust gas by-pass valve directly bypasses waste gas energy
Amount, the mechanical efficiency of turbine is sacrificed, boost pressure deficiency when causing high operating mode.The through-flow blocking of turbine generally occurs in turbine
Near the trailing edge of the outlet port of impeller, i.e. turbo blade, can by improve the ratio between turbine outlet diameter and inlet diameter come
The through-current capability of turbine is improved, but the outlet diameter of turbine, which has size to limit, to be constrained.So how efficiently to improve turbine
Through-current capability under big flow operating mode, becomes one of urgent problem to be solved.
Utility model content
The purpose of this utility model is exactly can be in order to provide one kind the defects of overcoming above-mentioned prior art to exist simultaneously
Take into account the through-current capability of turbine and the turbine shroud and turbocharger that groove is widened with flow of mechanical efficiency.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of turbine shroud that groove is widened with flow, the turbine shroud include vortex section and the row being connected with vortex section
Gas section, described vortex section is interior to be provided with scroll runner and turbine room, and one end of described scroll runner is provided with waste gas inlet, separately
One end is provided with turbine nozzle, and is connected by turbine nozzle with turbine room, and turbine, described row are provided with described turbine room
Exhaust passage is provided with gas section, one end of the exhaust passage is provided with exhaust vent, offered on the inwall of described exhaust section
Flow widens groove, and one end that the flow widens groove is connected with turbine room, and the other end is connected with exhaust passage.
Described exhaust passage includes the adapter cavity being connected with turbine room and the diffusion chamber being connected with adapter cavity, institute
The exhaust vent stated is arranged on one end of diffusion chamber, and one end that described flow widens groove is connected with turbine room, the other end
It is connected with diffusion chamber.
The internal diameter of described diffusion chamber is more than the internal diameter of adapter cavity.Flow widens groove and the waste gas in turbine room is divided
Stream, avoid excessive waste gas from entering diffusion chamber through adapter cavity, thus effectively alleviate the through-flow blocking of turbine.
The flow that described flow widens groove and includes being connected with turbine room is widened groove intake channel, is connected with diffusion chamber
Flow widen groove exit passageway and be arranged on that flow widens groove intake channel and flow widens side between groove exit passageway
Circulation passage.Flow widens the entrance of groove intake channel between turbine room and adapter cavity, avoids the exit of turbine wheel from sending out
Raw through-flow blocking.
Described bypass passageways offer multiple altogether, and are uniformly laid in along the circumference of exhaust section on the inwall of exhaust section,
Supporter is provided between adjacent two bypass passageways.
The angle that described flow widens between groove intake channel and the central axis of exhaust passage is 20-90 °, described
The angle that flow widens between groove exit passageway and the central axis of exhaust passage is 90-160 °.
Described turbine is provided with turbo blade, and the trailing edge of the turbo blade is located in exhaust passage.
As preferable technical scheme, the longitudinal section where the trailing edge of described turbo blade is located at flow and widens groove import
Passage and flow are widened between groove exit passageway.
Described vortex section is provided with mounting flange.
A kind of turbocharger, the turbocharger contain the described turbine shroud that groove is widened with flow.
The utility model is in practical application, by the waste gas of waste gas inlet entrance successively through scroll runner, turbine nozzle
Into turbine room, and enter exhaust passage in the presence of turbine, finally discharged by exhaust vent, when exhaust gas flow is excessive
When, after a part of waste gas is flowed out by turbine room, groove is widened into the larger diffusion chamber of internal diameter through flow, afterwards by exhaust vent
Discharge.
Compared with prior art, the utility model has the characteristics that：
1) by setting flow to widen groove, under big flow operating mode, waste gas can widen groove outflow turbine by flow, increase
The through-current capability of turbine is added, nearby through-flow clogging occurs for the trailing edge for avoiding turbo blade, while has also taken into account turbine
Mechanical efficiency, can effectively lift the blocking traffic limit of turbine；
2) it is simple in construction, need to only partial operation be carried out to existing turbine shroud, versatility is good, efficiently improves whirlpool
Take turns the through-current capability under big flow operating mode.
Brief description of the drawings
Fig. 1 is the cross-sectional view of turbine shroud in embodiment 1；
Fig. 2 is the structural representation of bypass passageways in embodiment 1；
Fig. 3 is the structural representation of turbocharger in embodiment 1；
Description of symbols in figure：
1-flow, which widens groove, 2-bypass passageways, 3-scroll runner, 4-turbine nozzle, 5-flow and widens groove import, to be led to
Road, 6-mounting flange, 7-waste gas inlet, 8-supporter, 9-exhaust passage, 91-adapter cavity, 92-diffusion chamber, 10-
Exhaust vent, 11-flow widen groove exit passageway, 12-turbine, 13-turbine room, α-flow widen groove intake channel with
Angle, β-flow between the central axis of exhaust passage are widened between groove exit passageway and the central axis of exhaust passage
Angle.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.The present embodiment is with the utility model
Implemented premised on technical scheme, give detailed embodiment and specific operating process, but guarantor of the present utility model
Shield scope is not limited to following embodiments.
Embodiment 1：
A kind of turbine shroud that groove is widened with flow as shown in Figure 1, the turbine shroud include vortex section and and whirlpool
The connected exhaust section of section is flowed, is provided with scroll runner 3 and turbine room 13 in vortex section, one end of scroll runner 3 is provided with gas inlet
Mouth 7, the other end is provided with turbine nozzle 4, and is connected by turbine nozzle 4 with turbine room 13, and turbine 12 is provided with turbine room 13,
Exhaust passage 9 is provided with exhaust section, one end of the exhaust passage 9 is provided with exhaust vent 10, offered on the inwall of exhaust section
Flow widens groove 1, and one end that the flow widens groove 1 is connected with turbine room 13, and the other end is connected with exhaust passage 9.
Wherein, exhaust passage 9 includes the adapter cavity 91 being connected with turbine room 13 and the expansion being connected with adapter cavity 91
Chamber 92 is pressed, exhaust vent 10 is arranged on one end of diffusion chamber 92, and one end that flow widens groove 1 is connected with turbine room 13, separately
One end is connected with diffusion chamber 92.The internal diameter of diffusion chamber 92 is more than the internal diameter of adapter cavity 91.
The flow that flow widens groove 1 and includes being connected with turbine room 13 is widened groove intake channel 5, is connected with diffusion chamber 92
Flow widen groove exit passageway 11 and be arranged on that flow widens groove intake channel 5 and flow is widened between groove exit passageway 11
Bypass passageways 2.
As shown in Fig. 2 bypass passageways 2 offer 3 altogether, and the inwall of exhaust section is uniformly laid in along the circumference of exhaust section
On, supporter 8 is provided between adjacent two bypass passageways 2.
Flow widens angle α=65 ° between groove intake channel 5 and the central axis of exhaust passage 9, and flow is widened groove and gone out
Angle β=125 ° between mouth passage 11 and the central axis of exhaust passage 9.Turbine 12 is provided with turbo blade, the turbine leaf
The trailing edge of piece is located in exhaust passage 9.Vortex section is provided with mounting flange 6.
A kind of turbocharger as shown in Figure 3, the turbocharger contain the above-mentioned turbine case that groove is widened with flow
Body.
In practical application, the waste gas entered by waste gas inlet 7 enters turbine through scroll runner 3, turbine nozzle 4 successively
Room 13, and enter exhaust passage 9 in the presence of turbine 12, finally discharged by exhaust vent 10, when exhaust gas flow is excessive,
After a part of waste gas is flowed out by turbine room 13, widen groove 1 through flow and enter the larger diffusion chamber 92 of internal diameter, afterwards by exhausting waste gas
Mouth 10 is discharged.
Embodiment 2：
In the present embodiment, bypass passageways 2 offer 4 altogether, and flow widens the center of groove intake channel 5 and exhaust passage 9
Angle α=20 ° between axis, flow widen angle β between groove exit passageway 11 and the central axis of exhaust passage 9=
90 °, remaining is the same as embodiment 1.
Embodiment 3：
In the present embodiment, bypass passageways 2 offer 5 altogether, and flow widens the center of groove intake channel 5 and exhaust passage 9
Angle α=90 ° between axis, flow widen angle β between groove exit passageway 11 and the central axis of exhaust passage 9=
160 °, remaining is the same as embodiment 1.
The above-mentioned description to embodiment is understood that for ease of those skilled in the art and using practicality
It is new.Person skilled in the art obviously can easily make various modifications to these embodiments, and illustrating herein
General Principle be applied in other embodiment without by performing creative labour.Therefore, the utility model is not limited to above-mentioned
Embodiment, those skilled in the art according to announcement of the present utility model, do not depart from improvement that the utility model category made and
Modification all should be within the scope of protection of the utility model.
Claims (9)
1. a kind of widen the turbine shroud of groove with flow, it is characterised in that the turbine shroud include vortex section and with vortex
Duan Xianglian exhaust section, described vortex section is interior to be provided with scroll runner (3) and turbine room (13), described scroll runner (3)
One end is provided with waste gas inlet (7), and the other end is provided with turbine nozzle (4), and is connected by turbine nozzle (4) with turbine room (13)
It is logical, turbine (12) is provided with described turbine room (13), is provided with exhaust passage (9) in described exhaust section, the exhaust passage (9)
One end be provided with exhaust vent (10), offering flow on the inwall of described exhaust section widens groove (1), and the flow widens groove
(1) one end is connected with turbine room (13), and the other end is connected with exhaust passage (9).
2. a kind of turbine shroud that groove is widened with flow according to claim 1, it is characterised in that described exhaust is led to
Road (9) includes the adapter cavity (91) being connected with turbine room (13) and the diffusion chamber (92) being connected with adapter cavity (91), institute
The exhaust vent (10) stated is arranged on one end of diffusion chamber (92), and described flow widens one end and the turbine room of groove (1)
(13) it is connected, the other end is connected with diffusion chamber (92).
A kind of 3. turbine shroud that groove is widened with flow according to claim 2, it is characterised in that described diffusion chamber
(92) internal diameter is more than the internal diameter of adapter cavity (91).
4. a kind of turbine shroud that groove is widened with flow according to claim 2, it is characterised in that described flow is opened up
The flow that sipes (1) includes being connected with turbine room (13) widens groove intake channel (5), the flow being connected with diffusion chamber (92)
Widen groove exit passageway (11) and be arranged on that flow widens groove intake channel (5) and flow is widened between groove exit passageway (11)
Bypass passageways (2).
5. a kind of turbine shroud that groove is widened with flow according to claim 4, it is characterised in that described bypass is led to
Road (2) offers multiple altogether, and is uniformly laid in along the circumference of exhaust section on the inwall of exhaust section, adjacent two bypass passageways (2)
Between be provided with supporter (8).
6. a kind of turbine shroud that groove is widened with flow according to claim 4, it is characterised in that described flow is opened up
Angle between sipes intake channel (5) and the central axis of exhaust passage (9) is 20-90 °, and described flow widens groove outlet
Angle between passage (11) and the central axis of exhaust passage (9) is 90-160 °.
A kind of 7. turbine shroud that groove is widened with flow according to claim 1, it is characterised in that described turbine
(12) turbo blade is provided with, the trailing edge of the turbo blade is located in exhaust passage (9).
A kind of 8. turbine shroud that groove is widened with flow according to claim 1, it is characterised in that described vortex section
It is provided with mounting flange (6).
9. a kind of turbocharger, it is characterised in that the turbocharger contains the band as described in any one of claim 1 to 8
There is the turbine shroud that flow widens groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720453581.3U CN206785484U (en) | 2017-04-27 | 2017-04-27 | A kind of turbine shroud and turbocharger that groove is widened with flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720453581.3U CN206785484U (en) | 2017-04-27 | 2017-04-27 | A kind of turbine shroud and turbocharger that groove is widened with flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206785484U true CN206785484U (en) | 2017-12-22 |
Family
ID=60709111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720453581.3U Expired - Fee Related CN206785484U (en) | 2017-04-27 | 2017-04-27 | A kind of turbine shroud and turbocharger that groove is widened with flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206785484U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882600A (en) * | 2016-09-30 | 2018-04-06 | 霍尼韦尔国际公司 | The turbocharger of turbine shroud with port |
| CN110332043A (en) * | 2019-08-14 | 2019-10-15 | 凤城市东宁动力有限公司 | A kind of turbocharger air inlet buffer structure |
-
2017
- 2017-04-27 CN CN201720453581.3U patent/CN206785484U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107882600A (en) * | 2016-09-30 | 2018-04-06 | 霍尼韦尔国际公司 | The turbocharger of turbine shroud with port |
| CN107882600B (en) * | 2016-09-30 | 2022-09-30 | 盖瑞特动力科技(上海)有限公司 | Turbocharger with ported turbine shroud |
| CN110332043A (en) * | 2019-08-14 | 2019-10-15 | 凤城市东宁动力有限公司 | A kind of turbocharger air inlet buffer structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20200427 |