CN204476551U - A kind of turbosupercharger exhaust gas bypass actuator - Google Patents
A kind of turbosupercharger exhaust gas bypass actuator Download PDFInfo
- Publication number
- CN204476551U CN204476551U CN201520026471.XU CN201520026471U CN204476551U CN 204476551 U CN204476551 U CN 204476551U CN 201520026471 U CN201520026471 U CN 201520026471U CN 204476551 U CN204476551 U CN 204476551U
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- China
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- controlling element
- final controlling
- pull bar
- exhaust gas
- heat insulation
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- 239000002912 waste gas Substances 0.000 claims abstract description 35
- 238000009413 insulation Methods 0.000 claims abstract description 28
- 239000007789 gas Substances 0.000 claims abstract description 22
- 230000005855 radiation Effects 0.000 claims abstract description 9
- 230000000903 blocking effect Effects 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 230000036961 partial effect Effects 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000007704 transition Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
Classifications
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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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- Supercharger (AREA)
Abstract
The utility model relates to a kind of turbosupercharger exhaust gas bypass actuator, comprises final controlling element (1), heat insulation catch (2), final controlling element pull bar (3), final controlling element body thermal shield (4), waste gas valve (5), spring sheet (6) and rocking arm (7).Final controlling element pull bar (3) one end connects final controlling element (1), and final controlling element pull bar (3) the other end connecting rocker arm (7), the end of rocking arm (7) is provided with waste gas valve (5).Final controlling element body thermal shield (4) is arranged on the upper side near thermal source of final controlling element (1) with blocking heat source radiation, and heat insulation catch (2) is fixedly mounted on the upper place near final controlling element (1) of final controlling element pull bar (3).Be provided with preloading spring sheet (6) between rocking arm (7) and waste gas valve (5), spring sheet (6) is a pretension four paws spring sheet.The utility model both can solve the problem in final controlling element temperature field, can solve again waste gas valve and be not closed completely and the problem producing resonance, effectively can improve NVH.
Description
Technical field
The utility model belongs to turbosupercharger of car engine technical field, is specifically related to a kind of turbosupercharger exhaust gas bypass actuator.
Background technique
Along with the blowout formula of automobile pollution increases, under the situation that automobile exhaust pollution is more and more serious, people propose more and more higher requirement to the energy-conservation of motor car engine and discharge.Wherein, adopt turbocharging technology to improve power, reduce engine displacement, improving oil consumption with this, improve emission performance simultaneously, is that numerous automobile making commercial city is paid much attention to and the technology greatly developed.The heat be discharged into during engine operation in air accounts for 33% of the total amount of heat that motor produces, and exhaust-gas turbocharger is exactly the output power utilizing the heat in exhaust to increase motor, reaches the effect of energy-saving and emission-reduction.
Turbosupercharging working principle: in fact a kind of air compressor of exhaust-gas turbocharger, increases air inflow by pressurized air.Its exhaust energy utilizing motor to discharge is to promote the turbine in turbine chamber, and turbine drives again coaxial impeller, and wheel compresses, from the air of air-strainer, makes it supercharging and enters cylinder.The waste gas velocity of discharge and secondary speed to be accelerated and fast along with engine speed, and the compressible more air of impeller enters cylinder, and the pressure of air and density are increased, corresponding increase fuel injection quantity with adjust engine speed, just can increase the output power of motor.Meanwhile, because sufficient combustion, so the content of the harmful matter CO in tail gas, hydrocarbon and oxynitrides decreases, and emission performance improves.What utilize due to turbosupercharger is the energy of waste gas, therefore can improve capacity usage ratio, reach energy-conservation object.
The exhaust of turbosupercharger connecting engine and gas handling system, the operating mode being in high temperature, high pressure and running up, its working environment very severe, therefore has very high requirement to its manufactured materials and processing technique, how heat insulation become Frequently Asked Questions in engineering.And, according to turbocharger operation characteristic, need when Under Different Work Condition of Engine to do accurate adjustment, its controlling device mostly regulates at exhaust side, when not needing supercharging, such as, when idling or exhaust energy are unnecessary or when tendency to detonate strengthens, a part of exhaust can be released by bypass valve and not enter turbosupercharger.Therefore exhaust gas bypass actuator is the core institution of pressurized machine, in order to regulate boost pressure, obtains the air inflow needed for motor.This mechanism divides again final controlling element and waste gas valve two core parts.
The diaphragm of final controlling element is composited by rubber and fabric cord.The effect of rubber makes diaphragm have sealing, and the Main Function of fabric cord makes diaphragm have certain mechanical strength and limiting diaphragm distortion.Diaphragm is Sealing, is again forced element, compensating element.Therefore to the requirement of diaphragm be to ensure in working procedure sealing, under certain pressure reduction, the flexibility of guarantee period elastic part.But final controlling element distance supercharger volute is very near, the thermal radiation on side is very large, and final controlling element diaphragm is easily heated roastingization and losing efficacy, very risky.Meanwhile, spring thermostability is difficult to ensure, after working long hours, spring performance variation directly affects booster performance and declines.Therefore, certain heat insulation measures being adopted to final controlling element, improve the working environment of diaphragm, arranging facilitating final controlling element, reduction diaphragm is heated failure risk important in inhibiting.In prior art, normally at final controlling element pull bar medium position until final controlling element part is all wrapped up with thermal shield, the heat that automatic pressure intensifier volute and manifold come out major part under the guiding of supercharger heat shield flows to pressurized machine pressure shell region, hot air flow enters straight and performs inside, and pressurized machine final controlling element stand in the breach be subject to thermal radiation.Under such circumstances, the diaphragm of final controlling element inside is easily by thermal failure.
Waste gas valve, under the effect of final controlling element, is connected through the hinge, and controls the size that waste gas runner is opened.Opening or being in unlatching transition point, by the impact of exhaust pulses, extremely easily make this valve produce resonance, produce pernicious noise in various degree.
In prior art, final controlling element effect drives exhaust gas valve door to open closing motion to supercharger volute bypass flow channel, because waste gas valve is that Spielpassung is on rocking arm, at waste gas valve opening or when opening transition point, by the impact of exhaust pulses, extremely easily produce resonance, produce the noise of high frequency; Waste gas valve and rocking arm produce relative movement for a long time, easily wear and tear; Easily cause waste gas valve to be not closed completely, air-flow produces high-frequency noise by slot.This brings serious impact by giving car load NVH.
Summary of the invention
In order to solve the technical problem of above-mentioned existence, the utility model devises a kind of turbosupercharger exhaust gas bypass actuator.
In order to solve the technical problem of above-mentioned existence, the utility model have employed following scheme:
A kind of turbosupercharger exhaust gas bypass actuator, comprise final controlling element (1), final controlling element pull bar (3), waste gas valve (5) and rocking arm (7), final controlling element pull bar (3) one end connects final controlling element (1), final controlling element pull bar (3) the other end connecting rocker arm (7); the end of rocking arm (7) is provided with waste gas valve (5); it is characterized in that: also comprise heat insulation catch (2), and heat insulation catch (2) is arranged on final controlling element pull bar (3), is positioned at the side, end of final controlling element (1).
Further, heat insulation catch (2) is a disc-shaped structure.
Further, the diameter of heat insulation catch (2) is 10mm-60mm.
Further, heat insulation catch (2) adopts Ordinary Steel material to make.
Further, heat insulation catch (2) and final controlling element pull bar (3) are by interference fit or be welded together.
Further, also comprise final controlling element body thermal shield (4), final controlling element body thermal shield (4) is arranged on the upper side near thermal source of final controlling element (1) with blocking heat source radiation.
Further, final controlling element body thermal shield (4) is a partial cylindrical surface structure, and the length of final controlling element body thermal shield (4) and the length of final controlling element (1) adapt.
Further, also comprise a preloading spring sheet (6), spring sheet (6) is arranged between rocking arm (7) and waste gas valve (5).
Further, spring sheet (6) is a four paws spring sheet.
This turbosupercharger exhaust gas bypass actuator has following beneficial effect:
(1) the utility model is simple, only need be fixed on final controlling element pull bar by heat insulation catch before final controlling element assembling, on whole engine arrangement substantially without affecting.The concrete arrangement states of binding engine, can adjust position flexibly simultaneously.Meanwhile, heat insulation catch effectively stops that hot air flow enters final controlling element inside, and secondly heat insulation catch can also reflect the thermal radiation of volute aspect on the one hand, on the other hand by the hot-fluid guiding surrounding facing to final controlling element, to reach better protected effect.This device is simple, greatly can reduce the temperature around hot air final controlling element.
(2) the heat insulation catch of the utility model and final controlling element body thermal shield can adopt simultaneously; also can independent utility, can available protecting, its actuator characteristic is ensured; can consider to reduce the requirement to final controlling element material property simultaneously, reach the object reduced costs.
(3) in the utility model, final controlling element body thermal shield is a semi-open structure, and the length of its length and final controlling element adapts, and to overcome in prior art at final controlling element pull bar medium position until final controlling element part all wraps up the defect brought with thermal shield.
(4) the utility model installs a heatproof four paws spring sheet additional between existing waste gas valve and rocking arm, its spring sheet uniform force, and structure is simple, impact briquetting, and manufacturing efficiency is high, and cost is low, is therefore easy to implement in engineering.
(5) the utility model is installing a heatproof four paws spring sheet additional between existing waste gas valve and rocking arm, waste gas valve open or open transition point time, waste gas valve is fixed together by spring sheet is relative with rocking arm, waste gas valve can not produce relative displacement by the impact of exhaust pulses, waste gas valve and rocking arm, can not wear and tear, more easily close turbine lateral channel.
Accompanying drawing explanation
Fig. 1: the structural representation of turbosupercharger exhaust gas bypass actuator of the present invention.
Description of reference numerals:
1-final controlling element; 2-heat insulation catch; 3-final controlling element pull bar; 4-final controlling element body thermal shield; 5-waste gas valve; 6-spring sheet; 7-rocking arm.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further:
Fig. 1 shows a kind of turbosupercharger exhaust gas bypass actuator, comprises final controlling element 1, heat insulation catch 2, final controlling element pull bar 3, final controlling element body thermal shield 4, waste gas valve 5, spring sheet 6 and rocking arm 7.Final controlling element pull bar 3 one end connects final controlling element 1, and final controlling element pull bar 3 the other end connecting rocker arm 7, the end of rocking arm 7 is provided with waste gas valve 5.Final controlling element body thermal shield 4 is arranged on the side of close thermal source on final controlling element 1 with blocking heat source radiation; performance degradation and damage can be caused by available protecting final controlling element by hyperthermia radiation; final controlling element body thermal shield 4 is partial cylindrical surface structures; the length of final controlling element body thermal shield 4 and the length of final controlling element 1 adapt, and also namely the length of final controlling element body thermal shield 4 is less than or equal to the length of final controlling element 1.Heat insulation catch 2 is fixedly mounted on the place near final controlling element 1 on final controlling element pull bar 3.Preloading spring sheet 6 is provided with between rocking arm 7 and waste gas valve 5, spring sheet 6 is pretension four paws spring sheets, when the transition point that waste gas valve 5 is opened or opened, waste gas valve 5 is fixed together by spring sheet 6 is relative with rocking arm 7, and its advantage is: waste gas valve 5 can not by the impact of exhaust pulses; Waste gas valve 5 and rocking arm 7 do not produce relative displacement, can not wear and tear; More easily close turbine lateral channel.
Heat insulation its size of catch 2 is the disc-shaped structure of diameter 10mm-60mm, adopts Ordinary Steel material, with final controlling element pull bar 3 interference fit or weld together, according to the welding position that system layout state is determined on pull bar.It is inner that heat insulation catch 2 effectively stops that hot air flow enters final controlling element 1, secondly can also design larger heat insulation catch 2, on the one hand the thermal radiation of reflection volute aspect, on the other hand by the hot-fluid guiding surrounding facing to final controlling element, to reach better protected effect.This device is simple, greatly can reduce the temperature around hot air final controlling element.
The utility model is simple, only heat insulation catch 2 welding need be got on before final controlling element assembling, on whole engine arrangement substantially without affecting.The concrete arrangement states of binding engine simultaneously; position can be adjusted flexibly; heat insulation catch 2 and final controlling element body thermal shield 4 can adopt simultaneously; also can independent utility; can available protecting; its actuator characteristic is ensured, can consider that final controlling element material property is lower simultaneously, reach the object reduced costs.
The utility model installs a heatproof four paws spring sheet 6 additional between existing waste gas valve 5 and rocking arm 7, its spring sheet uniform force, and structure is simple, impact briquetting, and manufacturing efficiency is high, and cost is low, is therefore easy to implement in engineering.
The utility model both can solve the problem in final controlling element temperature field, can solve again waste gas valve and be not closed completely and the problem producing resonance, effectively can improve NVH.
By reference to the accompanying drawings exemplary description is carried out to the utility model above; obvious realization of the present utility model is not subject to the restrictions described above; as long as have employed the various improvement that method of the present utility model is conceived and technological scheme is carried out; or design of the present utility model and technological scheme directly applied to other occasion, all in protection domain of the present utility model without to improve.
Claims (8)
1. a turbosupercharger exhaust gas bypass actuator, comprise final controlling element (1), final controlling element pull bar (3), waste gas valve (5) and rocking arm (7), final controlling element pull bar (3) one end connects final controlling element (1), final controlling element pull bar (3) the other end connecting rocker arm (7); the end of rocking arm (7) is provided with waste gas valve (5); it is characterized in that: also comprise heat insulation catch (2), and heat insulation catch (2) is arranged on final controlling element pull bar (3), is positioned at the side, end of final controlling element (1).
2. turbosupercharger exhaust gas bypass actuator according to claim 1, is characterized in that: heat insulation catch (2) is a disc-shaped structure.
3. turbosupercharger exhaust gas bypass actuator according to claim 2, is characterized in that: the diameter of heat insulation catch (2) is 10mm-60mm.
4. the turbosupercharger exhaust gas bypass actuator according to claim 1,2 or 3, is characterized in that: heat insulation catch (2) adopts Ordinary Steel material to make; Heat insulation catch (2) and final controlling element pull bar (3) are by interference fit or be welded together.
5. the turbosupercharger exhaust gas bypass actuator according to claim 1,2 or 3, it is characterized in that: also comprise final controlling element body thermal shield (4), final controlling element body thermal shield (4) is arranged on the upper side near thermal source of final controlling element (1) with blocking heat source radiation.
6. turbosupercharger exhaust gas bypass actuator according to claim 5, is characterized in that: final controlling element body thermal shield (4) is a partial cylindrical surface structure, and the length of final controlling element body thermal shield (4) and the length of final controlling element (1) adapt.
7. the turbosupercharger exhaust gas bypass actuator according to claim 1,2,3 or 6, is characterized in that: also comprise a preloading spring sheet (6), spring sheet (6) is arranged between rocking arm (7) and waste gas valve (5).
8. turbosupercharger exhaust gas bypass actuator according to claim 7, is characterized in that: spring sheet (6) is a four paws spring sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026471.XU CN204476551U (en) | 2015-01-15 | 2015-01-15 | A kind of turbosupercharger exhaust gas bypass actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520026471.XU CN204476551U (en) | 2015-01-15 | 2015-01-15 | A kind of turbosupercharger exhaust gas bypass actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204476551U true CN204476551U (en) | 2015-07-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520026471.XU Active CN204476551U (en) | 2015-01-15 | 2015-01-15 | A kind of turbosupercharger exhaust gas bypass actuator |
Country Status (1)
| Country | Link |
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| CN (1) | CN204476551U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366347A (en) * | 2019-10-22 | 2020-07-03 | 襄阳达安汽车检测中心有限公司 | Method for diagnosing abnormal sound of turbocharger |
| CN113027598A (en) * | 2021-03-31 | 2021-06-25 | 安徽江淮汽车集团股份有限公司 | Turbocharger and engine system of automobile |
| CN113565623A (en) * | 2021-06-30 | 2021-10-29 | 东风汽车集团股份有限公司 | Executor coupling mechanism, bypass booster and vehicle |
-
2015
- 2015-01-15 CN CN201520026471.XU patent/CN204476551U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111366347A (en) * | 2019-10-22 | 2020-07-03 | 襄阳达安汽车检测中心有限公司 | Method for diagnosing abnormal sound of turbocharger |
| CN113027598A (en) * | 2021-03-31 | 2021-06-25 | 安徽江淮汽车集团股份有限公司 | Turbocharger and engine system of automobile |
| CN113565623A (en) * | 2021-06-30 | 2021-10-29 | 东风汽车集团股份有限公司 | Executor coupling mechanism, bypass booster and vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |