CN204492969U - Exhaust-gas turbocharger volute by-pass collar - Google Patents
Exhaust-gas turbocharger volute by-pass collar Download PDFInfo
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- CN204492969U CN204492969U CN201420853948.7U CN201420853948U CN204492969U CN 204492969 U CN204492969 U CN 204492969U CN 201420853948 U CN201420853948 U CN 201420853948U CN 204492969 U CN204492969 U CN 204492969U
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- bypass valve
- volute
- taper
- exhaust
- valve opening
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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 exhaust-gas turbocharger technical field, relate to a kind of exhaust-gas turbocharger volute by-pass collar, specifically a kind of device by utilizing cone shape hole structure to increase volute bypass system bypass amount, comprise volute, volute offers bypass valve opening, be connected with bypass valve in bypass valve opening, all tapered shape of bypass valve opening and bypass valve, and the bypass valve of taper matches with the bypass valve opening of taper; On volute, corresponding to the top of bypass valve, bypass valve running shaft is set, is connected by bypass valve support between bypass valve with described bypass valve running shaft.The utility model product structure simply, rationally compact, effectively can improve the reliability of supercharger volute assembly, and volute and bypass valve manufacturing are simple, can save portion of material cost.
Description
Technical field
The utility model belongs to exhaust-gas turbocharger technical field, relates to a kind of exhaust-gas turbocharger volute by-pass collar, specifically a kind of device by utilizing cone shape hole structure to increase volute bypass system bypass amount.
Background technique
As everyone knows, exhaust gas turbocharge goes device to be for the equipment by atmospheric pressure supercharging IC engine supply air inlet.The turbine that common pressurized machine substantially comprises turbo machine volute and is arranged in volute, described volute is in the downstream of enmgine exhaust.The rotation of turbine make the pressure vane rotary being arranged on the coaxial the other end air pressure is contractd by compressor casing collect be transported to engine intake manifold.Turbine shaft is supported by the floating bearing connected in the middle case of turbo machine and gas compressor and thrust-bearing usually.
Bypass valve exhaust-gas turbocharger is provided with the bypass passageways being called bypass valve system on volute, can control boost pressure or the supercharger speed of turbosupercharger.The Stress control that bypath valve is exported by pressure shell, opens bypass valve when pressure shell outlet pressure exceedes setting value, thus makes some waste gas of waste gas walk around turbine to pass through from bypass passageways.Usual bypath valve is opened, and waste gas will flow to turbine outlet by bypass, and is discharged to air together with turbine outlet air-flow.Wastegate system by usual by bypass valve, bypass valve opening, bypass valve shaft, bypass valve axle sleeve, governor assembly, adjustable lever and export with pressure shell the rubber tube be connected and form.
In exhaust-gas turbocharger; bypass system can close the low speed torque improving motor during low engine speed; and turbo charger speed can be reduced by bypass system when high engine speeds high load; thus avoid pressurized machine to exceed the speed limit under the prerequisite meeting engine performance; thus protection pressurized machine; but the raising required along with low engine speed and the application of gaseous fuel thereof, require that the bypass flow of pressurized machine is increasing.
In current exhaust-gas turbocharger bypass valve system, valve opening all produces by mach straight hole structure or by casting, for mach straight hole structure, due to unavoidably angle structure will be had in course of working, its air-flow can produce flow losses in flow process, and the existence of long straight section also can reduce its through-current capability, thus have influence on the thermal efficiency of motor; For casting hole, due to the interfacial area in its hole immutable, therefore can not carry out improvement to increase bypass flow in machined piece, therefore for design, replaceability is very poor.Therefore will improve bypass flow under current structural constraint very difficult, therefore this invention can obtain larger bypass amount when existing turbocharger housing structure need not change too many.
In current exhaust-gas turbocharger bypass valve, valve block is carry out linear sealing by straight hole end face (having certain Small Taper) with the plane of valve to coordinate with coordinating of valve opening, in the process that it is closed, there is certain deflection gap in the valve block due to activity, thus need valve block to design to obtain the reliability of very large guarantee sealing, therefore the utility model also can by the cone match of bore area under the prerequisite considering increase through-current capability, therefore do not need to design very large valve block, thus reduce cost of material while ensureing reliability.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of structure simple, ingenious, rational exhaust-gas turbocharger volute by-pass collar is provided, this device effectively can improve the reliability of supercharger volute assembly, and volute and bypass valve manufacturing simple.
Technological scheme according to the utility model provides: a kind of exhaust-gas turbocharger volute by-pass collar, comprise volute, volute offers bypass valve opening, bypass valve is connected with in bypass valve opening, it is characterized in that: described bypass valve opening and all tapered shape of bypass valve, and the bypass valve opening of the bypass valve of taper and taper is sealed and matched; On described volute, corresponding to the top position of bypass valve, bypass valve running shaft is set, is connected by bypass valve support between bypass valve with described bypass valve running shaft.
As further improvement of the utility model, the tapering of described taper bypass valve is greater than 30 degree, and the tapering of taper bypass valve opening is 5 ° ~ 30 °, and the maximum outside diameter of taper bypass valve is greater than the maximum inner diameter of taper bypass valve opening.
As further improvement of the utility model, the end face that described taper bypass valve matches with bypass valve opening is arc surface.
As further improvement of the utility model, the end face that described taper bypass valve opening matches with taper bypass valve is arc surface.
As further improvement of the utility model, the end face of described bypass valve is plane, and this plane and bypass valve hole end surface are sealed and matched.
As further improvement of the utility model, described volute inwall forms volute entrance channel.
As further improvement of the utility model, described bypass valve running shaft is arranged with bypass valve lining.
As further improvement of the utility model, described volute is also provided with scroll outlet runner.
Compared with prior art, advantage is the utility model: the utility model product structure simply, rationally compact, effectively can improve the reliability of supercharger volute assembly, and volute and bypass valve manufacturing are simple, can save portion of material cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of the second mode of execution of the present utility model.
Fig. 3 is the structural representation of the third mode of execution of the present utility model.
Fig. 4 is the structural representation of the 4th kind of mode of execution of the present utility model.
Embodiment
Below in conjunction with concrete drawings and Examples, the utility model is described in further detail.
As shown in Fig. 1 ~ 4, comprise volute 1, bypass valve lining 2, bypass valve running shaft 3, bypass valve support 4, bypass valve 5, bypass valve opening 6, scroll outlet runner 7, volute entrance channel 8 etc.
As shown in Fig. 1 ~ 4, a kind of exhaust-gas turbocharger volute of the utility model by-pass collar, comprise volute 1, volute 1 offers bypass valve opening 6, bypass valve 5 is connected with in bypass valve opening 6, described bypass valve opening 6 and all tapered shape of bypass valve 5, and the bypass valve opening of the bypass valve of taper and taper is sealed and matched; On described volute 1, corresponding to the top position of bypass valve 5, bypass valve running shaft 3 is set, is connected by bypass valve support 4 between bypass valve 5 with described bypass valve running shaft 3.
The tapering of described taper bypass valve 5 is greater than 30 degree, and the tapering of taper bypass valve opening 6 is 5 ° ~ 30 °, and the maximum outside diameter of taper bypass valve 5 is greater than the maximum inner diameter of taper bypass valve opening 6.
The end face that described taper bypass valve 5 matches with bypass valve opening 6 is arc surface.
The end face that described taper bypass valve opening 6 matches with taper bypass valve 5 is arc surface.
The end face of described bypass valve 5 is plane, and this plane coordinates with bypass valve opening 6 end face seal.
Described volute 1 inwall forms volute entrance channel 8.
Described bypass valve running shaft 3 is arranged with bypass valve lining 2.
Described volute 1 is also provided with scroll outlet runner 7.
The utility model operationally, carries out bypass by bypass valve opening 6 unnecessary waste gas, regulates by regulating bypass valve running shaft 3 unlatching or closedown that control bypass valve opening 6.
Fig. 2 shows the second mode of execution of the present utility model, and bypass valve 5 is designed to arc surface and seals with the cooperation of bypass valve opening 6 end face.
Fig. 3 shows the third mode of execution of the present utility model, and bypass valve opening 6 is designed to arc surface and seals with the cooperation of bypass valve 5 end face.
Fig. 4 shows the 4th kind of mode of execution of the present utility model, and bypass valve 5 is designed to plane and seals with the cooperation of bypass valve opening 6 end face.
In current exhaust-gas turbocharger bypass valve system, valve opening all produces by mach straight hole structure or by casting, for mach straight hole structure, due to unavoidably angle structure will be had in course of working, its air-flow can produce flow losses in flow process, and the existence of long straight section also can reduce its through-current capability, thus have influence on the thermal efficiency of motor; For casting hole, due to the interfacial area in its hole immutable, therefore can not carry out improvement to increase bypass flow in machined piece, therefore for design, replaceability is very poor.The design that the utility model is new make use of the principle of jet pipe, bypass valve opening 6 designs conical outlet, reduces with this flow losses that straight hole brings, improve negotiability, by hydromechanical computational analysis, bypass flow can be improved 20% in actual applications.Therefore the utility model has the advantages that and negotiability can be improved have good replaceability simultaneously.
Simultaneously in current exhaust-gas turbocharger bypass valve, valve block is carry out linear sealing by straight hole end face (having certain Small Taper) with the plane of valve to coordinate with coordinating of valve opening, in the process that it is closed, there is certain deflection gap in the valve block due to activity, thus needs valve block to design to obtain the reliability of very large guarantee sealing.The design that the utility model is new also utilizes the principle of taper sealing, on bypass valve 5, sealing surface is designed to the conical surface and both can plays reduction flow resistance, do not need to design very large valve block, thus reduces cost of material while ensureing reliability.
More than describing is to explanation of the present utility model, and be not the restriction to invention, the utility model limited range, see claim, within protection domain of the present utility model, can do any type of amendment.
The utility model structure is simple, compact and reasonable, effectively can improve through-current capability and the reliability of turbosupercharger bypass system assembly, and spiral case manufacturing is simple, can save portion of material cost.
Claims (8)
1. an exhaust-gas turbocharger volute by-pass collar, comprise volute (1), volute (1) offers bypass valve opening (6), bypass valve (5) is connected with in bypass valve opening (6), it is characterized in that: described bypass valve opening (6) and all tapered shape of bypass valve (5), and the bypass valve opening of the bypass valve of taper and taper is sealed and matched, taper bypass valve (5) external diameter is greater than bypass valve opening (6) maximum inner diameter; Described volute (1) is upper, arrange bypass valve running shaft (3) corresponding to the top position of bypass valve (5), passes through bypass valve support (4) and be connected between bypass valve (5) with described bypass valve running shaft (3).
2. exhaust-gas turbocharger volute by-pass collar as claimed in claim 1, it is characterized in that: the tapering of described taper bypass valve (5) is greater than 30 degree, the tapering of taper bypass valve opening (6) is 5 ° ~ 30 °, and the maximum outside diameter of taper bypass valve (5) is greater than the maximum inner diameter of taper bypass valve opening (6).
3. exhaust-gas turbocharger volute by-pass collar as claimed in claim 1, is characterized in that: the end face that described taper bypass valve (5) is matched with bypass valve opening (6) is arc surface.
4. exhaust-gas turbocharger volute by-pass collar as claimed in claim 1, is characterized in that: the end face that described taper bypass valve opening (6) is matched with taper bypass valve (5) is arc surface.
5. exhaust-gas turbocharger volute by-pass collar as claimed in claim 1, is characterized in that: the end face of described bypass valve (5) is plane, and this plane coordinates with bypass valve opening (6) end face seal.
6. exhaust-gas turbocharger volute by-pass collar as claimed in claim 1, is characterized in that: described volute (1) inwall forms volute entrance channel (8).
7. exhaust-gas turbocharger volute by-pass collar as claimed in claim 1, is characterized in that: described bypass valve running shaft (3) is arranged with bypass valve lining (2).
8. exhaust-gas turbocharger volute by-pass collar as claimed in claim 1, is characterized in that: described volute (1) is also provided with scroll outlet runner (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853948.7U CN204492969U (en) | 2014-12-29 | 2014-12-29 | Exhaust-gas turbocharger volute by-pass collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853948.7U CN204492969U (en) | 2014-12-29 | 2014-12-29 | Exhaust-gas turbocharger volute by-pass collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204492969U true CN204492969U (en) | 2015-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420853948.7U Active CN204492969U (en) | 2014-12-29 | 2014-12-29 | Exhaust-gas turbocharger volute by-pass collar |
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| Country | Link |
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| CN (1) | CN204492969U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481673A (en) * | 2014-12-29 | 2015-04-01 | 无锡康明斯涡轮增压技术有限公司 | Exhaust gas turbocharger volute bypass device |
-
2014
- 2014-12-29 CN CN201420853948.7U patent/CN204492969U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481673A (en) * | 2014-12-29 | 2015-04-01 | 无锡康明斯涡轮增压技术有限公司 | Exhaust gas turbocharger volute bypass device |
| CN104481673B (en) * | 2014-12-29 | 2017-03-08 | 无锡康明斯涡轮增压技术有限公司 | Exhaust-driven turbo-charger exhaust-gas turbo charger volute by-pass collar |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |